US20080263817A1 - Vacuum Cleaner with Ultraviolet Light Source and Ozone - Google Patents
Vacuum Cleaner with Ultraviolet Light Source and Ozone Download PDFInfo
- Publication number
- US20080263817A1 US20080263817A1 US12/067,685 US6768506A US2008263817A1 US 20080263817 A1 US20080263817 A1 US 20080263817A1 US 6768506 A US6768506 A US 6768506A US 2008263817 A1 US2008263817 A1 US 2008263817A1
- Authority
- US
- United States
- Prior art keywords
- filter
- vacuum cleaner
- airstream
- housing assembly
- filter housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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- 230000000249 desinfective effect Effects 0.000 claims abstract description 21
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- 241000700605 Viruses Species 0.000 description 19
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- 229910052760 oxygen Inorganic materials 0.000 description 15
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/12—Dry filters
- A47L9/122—Dry filters flat
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1616—Multiple arrangement thereof
- A47L9/1641—Multiple arrangement thereof for parallel flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/03—Vacuum cleaner
Definitions
- the present invention relates to vacuum cleaners. More particularly, the present invention relates to vacuum cleaners which condition the exhaust air they emit.
- Both canister and upright vacuum cleaners are well known in the art.
- a filter bag is used to filter the dirt and hold the dirt so as to exhaust relatively clean air back into the environment. After multiple uses of the vacuum cleaner, the filter bag must be replaced.
- a newer type of vacuum cleaner utilizes cyclonic air flow, a dust cup and one or more filters, rather than a replaceable filter bag, to separate the dirt and other particulates from the suction air stream.
- filters need infrequent replacement.
- Bagless vacuum cleaners typically collect the separated dirt in a dust cup or dirt-collecting receptacle while discharging the cleaned air through a grill assembly.
- the cleaned air being discharged may still contain noxious materials and odor, thereby causing them to exhaust along with the cleaned air into the room.
- the dirt-collecting receptacle provides a suitable place for various bacteria and viruses to live and breed. Such bacteria and viruses can be released to the room when the dirt collected in the dirt collecting receptacle is emptied, thereby further polluting the room.
- a vacuum cleaner with a means for reducing, if not eliminating, bacteria, viruses and the like.
- One such means is an ultraviolet (UV) light source which emits radiation powerful enough to destroy bacteria and viruses.
- Another such means is ozone, which can be created from ambient oxygen by, for example, the UV light source.
- Ozone is a gas whose molecules are composed of three bonded oxygen atoms. Ozone is a highly reactive substance, which is used to treat drinking water and swimming pool water, treat industrial waste, and to bleach inorganic products such as clay. Ozone is the second most powerful oxidant after fluorine. It is also a powerful disinfectant which can destroy airborne bacterial and viral contaminants, and which can oxidize chemical contaminants.
- the present invention provides a new and improved vacuum cleaner including a UV light source which overcomes difficulties with the prior art while providing better and more advantageous overall results.
- a filter housing assembly for a vacuum cleaner is provided.
- the filter housing assembly includes a suction airstream inlet and a suction airstream outlet.
- the assembly comprises a housing member mounted to the vacuum cleaner.
- a first filter is mounted in the housing member and an ultraviolet light source is located in the housing member for disinfecting an interior of the filter housing.
- An electrical socket provides a power source to the ultraviolet light source.
- a vacuum cleaner in accordance with another aspect of the present invention, includes a nozzle base having a main suction opening and a housing pivotally mounted on the nozzle base.
- An airstream suction source is mounted to one of the housing and the nozzle base for selectively establishing and maintaining a suction airstream flowing from the nozzle main suction opening to an exhaust outlet of the suction source.
- a filter housing assembly is mounted to one of the nozzle base and the housing.
- the filter housing assembly comprises a filter mounted in the filter housing assembly.
- An ultraviolet light source is disposed in the filter housing assembly and shines on the filter for disinfecting same.
- a vacuum cleaner in accordance with still another aspect of the present invention, includes a housing in fluid communication with a main suction opening.
- An airstream suction source is mounted to the housing for selectively establishing and maintaining a suction airstream flowing from the main suction opening to an exhaust outlet of the suction source.
- a filter housing assembly is mounted to the housing comprises a first filter and a second filter. An ultraviolet light shines on the first and second filters for disinfecting same.
- a vacuum cleaner comprises a dirt cup and first and second cyclonic airflow chambers located in the dirt cup.
- the second cyclonic flow chamber is positioned adjacent to and parallel to the first cyclonic flow chamber, wherein the first and second chambers are oriented generally vertically.
- a filter housing assembly is disposed downstream from the first and second cyclonic flow chambers and accommodates at least one filter for filtering dirt from the airstream.
- An ultraviolet light source is secured to at least one of the dirt cup and the filter housing assembly.
- FIG. 1 is a front perspective view illustrating a cyclonic air flow vacuum cleaner including a dirt cup and a filter housing assembly in accordance with a first embodiment of the present invention.
- FIG. 2 is a right side elevational view in cross section, and partially broken away, of the cyclonic air flow vacuum cleaner of FIG. 1 .
- FIG. 3 is a rear elevational view in cross section, and partially broken away, of the cyclonic air flow vacuum cleaner of FIG. 1 .
- FIG. 4 is a partially exploded front perspective view of the filter housing assembly of FIG. 2 .
- FIG. 5 is a front perspective view of a filter housing assembly for a vacuum cleaner in accordance with a second embodiment of the present invention.
- FIG. 6 is a top plan view of the filter housing assembly of FIG. 5 .
- FIG. 7 is a bottom plan view of the filter housing assembly of FIG. 5 .
- FIG. 8 is a cross-sectional view of the filter housing assembly taken generally along the lines of A-A of FIG. 6 .
- FIG. 9 is a cross-sectional view of the filter housing assembly taken generally along lines of B-B of FIG. 6 .
- FIG. 10 is a front perspective view of a dirt cup portion of a vacuum cleaner illustrating a means for cleaning an airstream in accordance with a third embodiment of the present invention.
- FIG. 11 is an enlarged front perspective view of a portion of a cyclonic air flow vacuum cleaner in accordance with a fourth embodiment of the present invention.
- FIG. 12 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a fifth embodiment of the present invention.
- FIG. 13 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a sixth embodiment of the present invention.
- FIG. 14 is a right side elevational view in cross section, and partially broken away, of a means for cleaning an airstream in accordance with a seventh embodiment of the present invention.
- FIG. 15 is a rear elevational view in cross section, and partially broken away, of a means for cleaning an airstream in accordance with an eighth embodiment of the present invention.
- FIG. 16 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a ninth embodiment of the present invention.
- FIG. 17 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a tenth embodiment of the present invention.
- FIG. 1 shows an upright vacuum cleaner A including an upright housing section B and a nozzle base section C.
- the sections B and C are pivotally or hingedly connected through the use of trunnions or another suitable hinge assembly D so that the upright housing section B pivots between a generally vertical storage position (as shown) and an inclined use position.
- Both the upright and nozzle sections B and C can be made from conventional materials, such as molded plastics and the like.
- the upright section B includes a handle 20 extending upward therefrom, by which an operator of the vacuum cleaner A is able to grasp and maneuver the vacuum cleaner.
- an underside 24 of the nozzle base includes a main suction opening 26 formed therein, which can extend substantially across the width of the nozzle at the front end thereof.
- the main suction opening 26 is in fluid communication with the vacuum upright body section B through a passage and a connector hose assembly, such as at 30 .
- a rotating brush assembly 32 is positioned in the region of the nozzle main suction opening 26 for contacting and scrubbing the surface being vacuumed to loosen embedded dirt and dust.
- a plurality of wheels 36 and 38 supports the nozzle on the surface being cleaned and facilitate its movement thereacross.
- the upright vacuum cleaner A includes a vacuum or suction source for generating the required suction airflow for cleaning operations.
- a suitable suction source such as an electric motor and fan assembly E, generates a suction force in a suction inlet and an exhaust force in an exhaust outlet.
- the motor assembly airflow exhaust outlet is in fluid communication with an exhaust grill (not visible).
- a final filter assembly can be provided for filtering the exhaust airstream of any contaminants which may have been picked up in the motor assembly immediately prior to its discharge into the atmosphere.
- the motor assembly suction inlet is in fluid communication with a dust and dirt separating region F of the vacuum cleaner A to generate a suction force therein.
- the dust and dirt separating region F housed in the upright section B includes a dirt cup or container 50 which is releasably connected to the upper housing B of the vacuum cleaner. Cyclonic action in the dust and dirt separating region F removes a substantial portion of the entrained dust and dirt from the suction airstream and causes the dust and dirt to be deposited in the dirt container 50 .
- the suction airstream enters an air manifold 52 of the dirt container through a suction airstream inlet section 54 which is formed in the air manifold.
- the suction airstream inlet 54 is in fluid communication with a suction airstream hose or conduit 56 through a fitting 58 as illustrated in FIG. 2 .
- the dirt container 50 can be mounted to the vacuum cleaner upright section B via conventional means.
- the dirt container 50 and the air manifold 52 are like the dirt containers and air manifolds shown and described in commonly owned U.S. patent application Ser. No. 11/082,501, expressly incorporated herein by reference. To the extent possible, other features discussed in reference to one or more of the embodiments of the above-referenced '501 application can also be optionally included on the dirt container 50 and the air manifold 52 .
- the dirt container 50 includes first and second generally cylindrical sections 60 and 62 .
- Each cylindrical sections includes a longitudinal axis, the longitudinal axis of the first cylindrical section is spaced from the longitudinal axis of the second cylindrical section.
- the first and second cylindrical sections define a first cyclonic airflow chamber 66 and a second cyclonic airflow chamber 68 , respectively.
- the first and second airflow chambers are each approximately vertically oriented and are arranged in a generally parallel relationship.
- the first and second cyclonic airflow chambers include respective first and second cyclone assemblies 72 and 74 .
- the first and second cyclone assemblies act simultaneously to remove coarse dust from the respective airstream flowing therethrough.
- Each cyclone assembly includes a separator cone 80 and a perforated tube 82 disposed within the separator cone.
- the separator cones have a larger diameter end located adjacent a top portion of the dirt container 50 and a smaller diameter end spaced from the top portion.
- a flange 88 extends radially from the smaller diameter end. As best illustrated in FIG.
- the flange is dimensioned to effectively seal off a space 90 , which is defined by an inner surface 92 of each cylindrical section 60 , 62 and an outer periphery of the separator cone 80 , from the dirt entrained airstream entering into the first and second cyclonic airflow chambers 66 , 68 .
- Each perforated tube 82 extends longitudinally in its respective cyclonic airflow chamber 66 and 68 .
- Each perforated tube 82 includes a plurality of small holes 94 disposed in a side wall of the tube for removing threads and fibers from the airstream.
- the diameter of the holes 94 and the number of those holes within the perforated tube 82 directly affect the filtration process occurring within each cyclonic airflow chambers 66 , 68 .
- additional holes result in a larger total opening area and thus the airflow rate through each hole is reduced. Thus, there is a smaller pressure drop and lighter dust and dirt particles will not be as likely to block the holes.
- Each perforated tube further includes an upper end 96 in fluid communication with the inlet section 54 of the air manifold 52 and a closed lower end 98 .
- the closed lower end of each tube 82 includes an outwardly flared section 100 for retarding an upward flow of dust that has fallen below the lower end 98 .
- a flange or skirt 102 extends longitudinally from the flared section 100 which also blocks rising dust from reentering the separator cone, thereby further improving the filtering of the dust entrained airstream.
- Each laminar flow member 110 extending from the closed lower end 98 of each tube 80 is a laminar flow member 110 .
- Each laminar flow member generally includes at least one pair of blades (not visible) which can have various conformations, such as a cross shape, a rectangular shape, a triangular shape and an elliptical shape when viewed from its side.
- the blades can be oriented at angles other than normal to each other.
- the air manifold 52 is disposed at a top portion of the dirt container 50 .
- the air manifold directs dirty air to each of the first and second cyclonic flow chambers 66 , 68 and directs a flow of cleaned air from each of the first and second cyclonic flow chambers to the electric motor and fan assembly of the vacuum cleaner A.
- the air manifold 52 includes the inlet section 54 through which dirty air passes and an outlet section 116 .
- the inlet section which is in fluid communication with the nozzle main suction opening, directs a flow of the dirty airstream into the first and second airflow chambers 66 , 68 .
- the airflow into the airflow chambers is tangential which causes a vortex-type, cyclonic or swirling flow. Such vortex flow is directed downwardly in the airflow chamber since the top end thereof is blocked by the flange 88 of the separator cone 80 .
- the dirt and debris is removed from the air flow and collects at a bottom portion of the chambers.
- relatively light fine dust is less subject to a centrifugal force. Accordingly, the fine dust may be contained in the airflow circulating near the bottom portion of the airflow chambers 66 , 68 . Since the laminar flow member 110 extends into the bottom portion of the airflow chambers, the circulating airflow hits the blade of the laminar flow member, thereby forming a laminar flow. Thus, the cyclonic flow of the airstream is stopped by the laminar flow member 110 . The fine dust in the airflow drops out of the airstream and falls by gravity in each of the airflow chambers 66 , 68 . The fine dust is collected at a bottom portion of the chambers.
- the outlet passage 120 has a longitudinal axis which is oriented approximately parallel to the longitudinal axes of the first and second cyclonic chambers 66 , 68 .
- An inlet end 122 of the outlet passage 120 is secured to a lower portion of the air manifold 52 .
- An outlet end 124 of the outlet passage 120 extends through an opening located in a bottom wall 126 of the dirt container 50 and a corresponding suction airstream inlet 130 ( FIG. 4 ) located in a filter housing assembly 132 .
- the filter housing assembly 132 which in the present embodiment is located downstream of the dirt container 50 , includes a housing member 134 suitably secured to one of the upright housing section B and a nozzle base section C by conventional means.
- the housing member 134 comprises a cover 136 releasably secured to a base 138 by conventional fasteners.
- the cover can include mounting means for mounting the dirt container to the filter housing assembly 132 .
- the base has an outwardly extending flange 146 which includes a portion of the suction airstream inlet 130 which is in fluid communication with the nozzle main suction opening 26 .
- the suction airstream inlet 130 directs the airstream flowing from the outlet end 124 of the outlet passage 120 to a filter 150 housed in the filter housing assembly 132 .
- the filter 150 is in fluid communication with the outlet end 124 of the outlet passage 120 and retains any dust escaping from the dirt container.
- the filter 150 can comprise a pleated filter material and can be an electrostatic or High-Efficiency Particulate Arresting (HEPA) grade filter, which is capable of trapping very small dust particles.
- the filter is in fluid communication with a suction airstream outlet (not visible) located on a bottom surface of the base 138 .
- the outlet is in fluid communication with the inlet of the electric motor and fan assembly E.
- the filter housing assembly 132 further includes an ultraviolet light (UV) source 160 for disinfecting the airstream inside the filter housing.
- UV light source generates a magnetic or electric field capable of emitting radiation powerful enough to destroy bacteria and viruses.
- UV light represents the frequency of light between 200 nanometers (nm) and 400 nm and cannot be seen with the naked eye. Within the UV spectrum lie three distinct bands of light: UV-A, UV-B and UV-C.
- Longwave UV light (approximately 315 nm to approximately 400 nm), or UV-A, refers to what is commonly called black light.
- UV-B (approximately 280 nm to approximately 315 nm), or midrange UV, generally causes sunburn.
- Germicidal UV light (approximately 200 nm to approximately 280 nm), or UV-C, is effective in microbial control.
- the UV light source 160 can be a germicidal UV-C light source that preferably emits radiation having wavelength of approximately 254 nm. This wavelength has been proven effective in diminishing or destroying bacteria, common germs, yeasts, mold and viruses to which the UV light source is exposed.
- the germicidal UV light source 160 is not limited to UV light sources having wavelength of 254 nm. It should be appreciated that other UV light sources with germicidal properties could also be used.
- the UV light source can be mounted in the housing member 134 by conventional means and is preferably disposed above the filter 150 so that the UV light source can shine on the filter. It has been proven that the residence time of bacteria, fungi and/or viruses trapped in or on the filter is great enough that exposure to the UV light source will either destroy the micro-organism or neutralize its ability to reproduce. It will be appreciated that the UV light source 160 can remain on after the electric motor and fan assembly E or the vacuum cleaner is turned off. This will extend the exposure time for the micro-organisms that were deposited onto the filter 150 to the UV light source. After a set time, the UV light source will then be automatically turned off. To ensure that the UV light source 160 works effectively, the cover 136 can be removed from the base 138 so that regular maintenance checks can be performed to remove any dust build up on the UV light source.
- An electrical socket 162 is mounted on an end of the UV light source 160 for providing a power source from the vacuum cleaner to the UV light source.
- the cover 136 can include an opening for an electrical connector which provides the power source to the electrical socket 162 .
- the power source can be the same power source that powers the electric motor and fan assembly E.
- the UV light source 160 has a low current and draws under twenty-four watts.
- the intensity of the UV light source can be equivalent to a sixty watt light bulb.
- portions of the vacuum cleaner irradiated by the germicidal UV light source can be made of a UV resistant material.
- a UV resistant material can be UV resistant plastic material, such as NORYL®, which is manufactured by General Electric Plastics Global Products, and is certified for use with ultraviolet light.
- the UV light source 160 can create ozone (O 3 ) from ambient oxygen (O 2 ).
- Ozone is a gas whose molecules are composed of three bonded oxygen atoms. It is also a powerful disinfectant which can destroy any remaining airborne bacterial and viral contaminants. The ozone can also oxidize chemical contaminants.
- One of ozone's advantages is that it can be carried by air into places that the UV radiation cannot reach directly.
- the airstream can be filtered through carbon or other adsorbent medium in the housing member 134 or passed through a metallic mesh or grid, such as zinc (to form zinc oxide), covering the suction airstream outlet located on the bottom surface of the base 138 .
- a metallic mesh or grid such as zinc (to form zinc oxide)
- the by-products of ozone degradation have biological contaminant destroying ability, as well.
- the ozone laden airstream can be passed through a final filter assembly having an adsorbent medium immediately prior to its discharge into the atmosphere.
- the amount of ozone emitted can be controlled by filtering the UV light source 160 thus keeping the level of ozone below the regulated environmental limits.
- a closed loop control system (not shown) can be implemented to monitor the amount of ozone in ambient air and can turn off the UV light source 160 if the amount of ozone is close the regulated environmental limits. As the level of ozone decreases, the closed loop control system can turn back on the UV light source 160 .
- the filter housing assembly 132 can include a separate conventional ozonizer for producing ozone in the housing member 134 .
- FIGS. 5-9 Similar to the aforementioned embodiment, a second embodiment of the present invention is shown in FIGS. 5-9 .
- a filter housing assembly 230 for a vacuum cleaner which can be a canister or an upright vacuum cleaner is there shown.
- the housing assembly can be located downstream of a dirt container and includes a suction airstream inlet 232 and a housing member 234 .
- the suction airstream inlet 232 is in fluid communication with a nozzle main suction opening.
- the housing member 234 is suitably secured to a housing (not shown) of the vacuum cleaner.
- the housing member 234 comprises a cover 236 releasably secured to a base 238 .
- the cover includes at least one tab 242 having an opening 244 , the tab extending outwardly from an edge 246 of the cover.
- the base 238 includes at least one corresponding protrusion 248 having an opening 250 . In this embodiment, three such tabs 242 and protrusions 248 are provided.
- the cover is positioned on the base such that the openings of the tabs are aligned with the openings of the protrusions. Conventional fasteners, such as a bolt and a nut, can then be used to secure the cover 236 to the base 238 .
- the cover 236 further includes a raised shelf 256 having a pair of apertures 258 .
- the apertures can allow the filter housing assembly 230 to be mounted to a bottom wall of a dirt container.
- Extending from a bottom surface of the shelf to the edges 246 of the cover 236 is a plurality of reinforcing members or gussets 260 , 262 . This provides additional stability against vertical deflecting forces and maintains the generally perpendicular relationship between the shelf 256 and the dirt container.
- the filter housing assembly 230 houses a pair of filters 270 and 272 arranged in series to maximize the amount of dust captured by the filter housing assembly 230 .
- the first filter 270 is in fluid communication with suction airstream inlet 232 .
- the first filter can include an open cell flexible foam material having a large dust retaining capacity.
- the first filter can also be impregnated with particles of carbon, preferably in the form of activated charcoal which has a large surface area for absorbing odors.
- the second filter 272 is disposed downstream of the first filter. The second filter 272 retains any dust which escapes from the first filter 270 and can comprise a pleated filter material.
- the second filter 272 can be an electrostatic or HEPA grade filter, which is capable of trapping very small dust particles.
- the second filter is in fluid communication with a suction airstream outlet 274 located on a bottom surface of the base 238 .
- the outlet 274 which can be covered by a grill, is in fluid communication with the inlet of an electric motor and fan assembly (not shown) of the vacuum cleaner.
- Each filter 270 , 272 is suitably secured to the housing member 234 by conventional means. As shown in FIGS. 8 and 9 , the first and second filters 270 and 272 , respectively, each can have an outer perimeter approximately the same size as an inner perimeter of the housing member 234 . This ensures that the airstream flowing through the housing member is filtered by each filter.
- the filter housing assembly 230 further includes a germicidal ultraviolet light (UV) source 280 located in the housing member 234 for disinfecting the airstream inside the filter housing.
- UV light source 280 can be mounted in the housing member 234 by conventional means.
- the UV light source extends generally normal from a side wall 282 of the base 238 and is disposed between the first filter 270 and the second filter 272 so that the UV light source can shine on both filters to disinfect the filters.
- An electrical socket 284 is mounted on an outer surface of the side wall 282 for providing a power source from the vacuum cleaner to the UV light source 280 .
- the power source that powers the electric motor and fan assembly can also power the UV light source.
- the UV light source 280 can create ozone from ambient oxygen.
- the filter housing assembly 230 can include a separate conventional ozonizer for producing ozone in the housing member 234 .
- FIG. 10 Similar to the aforementioned embodiment, a third embodiment of the present invention is shown in FIG. 10 .
- dirt container 300 is similar to the dirt container 50 described above.
- the dirt container 300 which can be mounted to a vacuum cleaner upright section via conventional means, includes first and second generally cylindrical sections 302 and 304 .
- Each cylindrical sections includes a longitudinal axis, the longitudinal axis of the first cylindrical section is spaced from the longitudinal axis of the second cylindrical section.
- the first and second cylindrical sections define a first cyclonic airflow chamber 308 and a second cyclonic airflow chamber 310 , respectively.
- the first and second airflow chambers are each approximately vertically oriented and are arranged in a general parallel relationship.
- the first and second cyclonic airflow chambers include respective first and second cyclone assemblies 314 and 316 .
- the first and second cyclone assemblies act simultaneously to remove coarse dust from the airstream.
- Each cyclone assembly includes a separator cone 320 and a perforated tube (not visible) disposed within the separator cone.
- the separator cones have a larger diameter end located adjacent a top portion of the dirt container 300 and a smaller diameter end spaced from the top portion.
- a flange 324 extends radially from the smaller diameter end. The flange is dimensioned to effectively seal off a portion of each cylindrical section 302 , 304 from the dirt entrained airstream entering into the first and second cyclonic airflow chambers 308 , 310 , respectively.
- Each perforated tube extends longitudinally in its respective cyclonic airflow chamber 308 and 310 .
- Each perforated tube includes a plurality of small holes disposed in a side wall of the tube for removing threads and fibers from the airstream.
- Each perforated tube further includes an upper end in fluid communication with an inlet section (not visible) of an air manifold 330 and a closed lower end.
- the closed lower end of each tube includes an outwardly flared section 334 for retarding an upward flow of dust that has fallen below the lower end of the perforated tube.
- the air manifold 330 which is similar to the air manifold 52 described above, is disposed at a top portion of the dirt container 300 .
- the air manifold directs dirty air to each of the first and second cyclonic flow chambers 308 , 310 and directs a flow of cleaned air from each of the first and second cyclonic flow chambers to an electric motor and fan assembly of the vacuum cleaner.
- the air manifold 330 includes the inlet section through which dirty air passes and an outlet section 338 .
- the outlet section collects a flow of cleaned air from both of the airflow chambers and merges the flow of cleaned air into the single cleaned air outlet passage 340 .
- the outlet passage 340 has a longitudinal axis which is oriented approximately parallel to the longitudinal axes of the first and second cyclonic airflow chambers 308 , 310 .
- An inlet end of the outlet passage 340 is secured to a lower portion of the air manifold 330 .
- An outlet end of the outlet passage 340 extends through an opening located in a bottom wall 342 of the dirt container 300 and a corresponding inlet 348 located in a filter housing assembly 350 .
- the filter housing assembly 350 can be a filter housing assembly similar to the filter housing assembly 132 and filter housing assembly 230 described above.
- the dirt container 300 further includes a germicidal ultraviolet (UV) light source 352 mounted between the first cyclonic flow chamber 308 and the second cyclonic flow chamber 310 .
- the flanges 324 include a recess (not visible) which define an opening between the airflow chambers dimensioned to receive the UV light source.
- an electrical socket 354 attached to an end of the UV light source for providing a power source to the UV light source will abut a top surface of the flanges 324 .
- the UV light source is oriented approximately parallel to the longitudinal axes of the first and second cyclonic airflow chambers 308 , 310 .
- the air and the dirt cyclonically rotate along an inner wall of the separator cone 320 .
- the dirt and debris is removed from the air flow and collects at a bottom portion of the chambers.
- the UV light source 352 shines on the bottom portion of the chambers to destroy any bacteria and/or viruses trapped in the removed dirt and debris.
- the UV light source 352 can act as an ozonizer by producing abundant amounts of ozone from ambient oxygen in the airflow chambers to destroy any remaining airborne bacterial and viral contaminants contained in the airflow chambers.
- the cleaned air is then discharged out through the holes of the perforated tube and the outlet section 338 of the air manifold 330 and into the single cleaned air outlet passage 340 .
- FIG. 11 a fourth embodiment of the present invention is shown in FIG. 11 .
- a dirt container 400 shown schematically
- an air manifold 402 disposed at a top portion of the dirt container are similar to those described above.
- the dirt container 400 which can be mounted to a vacuum cleaner (not shown) via conventional means, includes first and second generally cylindrical sections 404 and 406 .
- the first and second cylindrical sections define a first cyclonic airflow chamber 410 and a second cyclonic airflow chamber 412 , respectively.
- the first and second airflow chambers can be each approximately vertically oriented and can be arranged in a general parallel relationship.
- the first and second cyclonic airflow chambers include respective first and second cyclone assemblies 416 and 418 which act simultaneously to remove coarse dust from the airstream.
- Each cyclone assembly includes a separator cone 420 and a perforated tube (not visible) disposed within the separator cone.
- a closed lower end of each tube includes an outwardly flared section 424 for retarding an upward flow of dust that has fallen below the lower end of the perforated tube.
- the separator cones have a larger diameter end located adjacent a top portion of the dirt container 400 and a smaller diameter end spaced from the top portion.
- a flange 428 extends radially from the smaller diameter end. The flange is dimensioned to effectively seal off a portion of each cylindrical section 404 , 406 from the dirt entrained airstream entering into the first and second cyclonic airflow chambers 410 , 412 , respectively.
- Each flange 428 includes at least one aperture 430 for securing at least one germicidal ultraviolet (UV) light source 432 .
- each flange includes a pair of diametrically opposed apertures for securing two UV light sources.
- the UV light sources 432 disinfect the airstream inside the airflow chambers 410 , 412 .
- the UV light sources can also act as ozonizers by producing ozone from ambient oxygen in the airflow chambers to destroy airborne bacterial and viral contaminants contained in the airflow chambers.
- Each flange further includes at least one indicator 440 , such as a light emitting diode, disposed in both of the first and second airflow chambers 410 , 412 for indicating a power status of the UV light sources 432 .
- at least one indicator 440 such as a light emitting diode
- four indicators are mounted in four spaced apart openings 442 located on each flange 428 .
- Each UV light source 432 and indicator 440 can be powered by a conventional power source, such as the power source that powers an electric motor and fan assembly.
- FIG. 12 schematically illustrates a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a fifth embodiment of the present invention.
- a separate conventional ozonizer 500 for producing ozone is located downstream of a suction nozzle 502 and upstream of a dirt cup 504 .
- the dirt cup can be similar to the dirt containers described above.
- Ozonizers of the general type under consideration are shown and described, for example, in U.S. Pat. Nos. 5,484,472; 5,667,564; 5,814,135; 5,911,957; 6,042,637; and 6,565,805. The disclosures of these patents are incorporated herein by reference.
- these conventional ozonizers generally generate ozone by passing an oxygen-containing gas between two electrodes, separated by a dielectric material. The oxygen is converted to ozone as it travels through the electrical corona.
- the ozonizer 500 directs ozone into a suction flow path 506 which is in fluid communication with an inlet of the dirt cup 504 .
- the ozone is circulated with the dirt entrained airstream entering into the dirt cup from the suction nozzle 502 of the vacuum cleaner.
- the ozone will effectively kill bacteria, viruses and fungi contained in the airstream.
- Ozone will also kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup 504 .
- the cleaned air flows out of the dirt cup and is directed to a filter housing assembly 508 .
- the filter housing assembly 508 can house at least one filter to retain any dust escaping from the dirt cup 504 .
- the at least one filter can comprise a pleated filter material and can be an electrostatic or HEPA grade filter.
- the filter housing assembly 508 can include a germicidal UV source for further disinfecting the airstream inside the filter housing assembly.
- An outlet of the filter housing assembly 508 is in fluid communication with an inlet of an electric motor and fan assembly 510 .
- the ozonizer 500 and the UV light source can be powered by a conventional power source, such as a battery or the power source that powers the electric motor and fan assembly 510 .
- FIG. 13 A sixth embodiment of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner is schematically illustrated in FIG. 13 .
- dirt entrained air enters a dirt cup 600 from a suction nozzle 602 of the vacuum cleaner via a suction flow path 604 , the dirt cup again can be similar to the dirt containers described above.
- the dirt cup separates dirt and debris from the airstream and circulates the cleaned air to a filter housing assembly 606 .
- the filter housing assembly 606 can house at least one filter to retain any dust escaping from the dirt cup 600 .
- the filter housing assembly 606 includes a germicidal UV source (not shown) which disinfects the airstream inside the filter housing assembly. In addition to disinfecting the airstream inside the filter housing assembly, and as set forth above, the UV light source creates ozone from ambient oxygen.
- the ozone will eliminate any bacteria, fungi and/or viruses remaining in the airstream or trapped in or on the filter.
- the filter housing assembly 606 is in fluid communication with an air path 608 which directs a portion of the sanitized air to an inlet of an electric motor and fan assembly 610 .
- the filter housing assembly also redirects a portion of the airstream back to the dirt cup 604 through a separate air path 612 .
- the redirected airstream contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup.
- ozone has a half-life of only about twenty-two minutes at ambient temperature. Thus, the ozone molecules will eventually turn into common oxygen molecules.
- FIG. 14 A seventh embodiment of a means for cleaning an airstream, specifically for redirecting airstream containing ozone from a filter housing assembly 700 to a dirt cup 702 , is illustrated in FIG. 14 .
- the filter housing assembly 700 and the dirt cup 702 are similar to the dirt container 50 and the filter housing assembly 132 described above. Accordingly, no further discussion relating to the structure of the dirt cup and filter housing will be provided.
- the dirt cup 702 separates dirt and debris from the airstream and circulates the cleaned air to the filter housing assembly.
- the filter housing assembly 700 can house at least one filter 704 to retain any dust escaping from the dirt cup and includes an isolated germicidal UV source 706 which shines on a surface of the filter for disinfecting the filter and the airstream flowing through the filter housing assembly.
- the UV light source creates ozone from ambient oxygen. As shown in FIG. 14 , the ozone created in the filter housing assembly can be redirected back to the dirt cup 702 through a separate conduit or hose 708 .
- the hose includes a first end 714 in fluid communication with an upper section 718 of the filter housing assembly which contains the UV source 706 .
- a second end 720 of the hose 708 is in fluid communication with a cyclonic airflow chamber 722 partially defined in the dirt cup 702 .
- Each hose end 714 and 720 includes a valve 726 and 728 , respectively.
- the valves are check valves; although, it should be appreciated that other valves can be used with departing from the scope of the present invention.
- Mounted to the second hose end 720 and located within the cyclonic airflow chamber 722 is a cup 730 including an inlet section 732 having a first diameter and an outlet section 734 having a second, smaller, diameter.
- This cup arrangement increases the velocity of the airstream through the cup which creates a higher speed lower pressure area in the dust cup 702 to create a venturi effect.
- the venturi effect also creates an increased vacuum in the cup 730 which opens each check valve 726 , 728 in the hose 708 .
- the increased vacuum in the cup suctions ambient air from the upper section 718 to the cyclonic airflow chamber 722 of the dirt cup 702 .
- This redirected ambient air contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup.
- the hose 708 can include a conventional disconnect (not shown) so that the dirt cup can be easily removed from the vacuum cleaner without interference from the hose.
- FIG. 15 an eighth embodiment of a means for redirecting airstream containing ozone from a filter housing assembly 800 to a dirt cup 802 is illustrated in FIG. 15 .
- the dirt cup 802 separates dirt and debris from the airstream and circulates the cleaned air to the filter housing assembly 800 which can include at least one filter 804 to retain any dust escaping from the dirt cup and a germicidal UV source 806 .
- the UV source disinfects the filter and the airstream flowing through the filter housing assembly and can create ozone from ambient oxygen. As shown in FIG. 15 , the ozone created in the filter housing assembly can be redirected back to the dirt cup 802 through a separate conduit or hose 808 .
- the hose includes a first end 814 in fluid communication with a lower section 818 of the filter housing assembly which contains the at least one filter 804 .
- a second end 820 of the hose is in fluid communication with a cyclonic airflow chamber 822 partially defined in the dirt cup 802 .
- Mounted to the second hose end 820 and located within the cyclonic airflow chamber 822 is a cup 830 having features similar to that of cup 730 . Air flowing through the cup has an increased velocity compared to the air flowing through the cyclonic airflow chamber 822 . As such, a venturi effect is created which increases vacuum in the cup 830 .
- hose 808 can include a conventional disconnect (not shown) so that the dirt cup can be easily removed from the vacuum cleaner without interference from the hose.
- FIGS. 16 and 17 A ninth embodiment and a tenth embodiment of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner are schematically illustrated in FIGS. 16 and 17 , respectively.
- dirt entrained air enters a dirt cup 900 from a suction nozzle 902 of the vacuum cleaner via a suction flow path 904 , the dirt cup again can be similar to the dirt containers described above.
- the dirt cup separates dirt and debris from the airstream and circulates the cleaned air to a filter housing assembly 906 .
- the filter housing assembly 906 can house at least one filter to retain any dust escaping from the dirt cup 900 .
- the filter housing assembly 906 includes a germicidal UV source (not shown) which disinfects the airstream inside the filter housing assembly. In addition to disinfecting the airstream inside the filter housing assembly, and as set forth above, the UV light source creates ozone from ambient oxygen.
- the ozone can eliminate any bacteria, fungi and/or viruses remaining in the airstream or trapped in or on the filter.
- the filter housing assembly redirects a portion of the airstream back to the dirt cup 904 through a separate air path 910 .
- the redirected airstream contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup.
- the filter housing assembly 906 is also in fluid communication with an air path 912 which directs a portion of the sanitized air to an inlet of an electric motor and fan assembly 916 .
- an air path 912 which directs a portion of the sanitized air to an inlet of an electric motor and fan assembly 916 .
- ozone has a half-life of only about twenty-two minutes at ambient temperature.
- the motor and fan assembly 916 is in fluid communication with an air path 918 which directs the air through a carbon or activated carbon filter 920 (also known as charcoal or activated charcoal) prior to its discharge into the atmosphere.
- the activated carbon filter prevents release of ozone into the environment by converting the ozone into oxygen.
- an activated carbon filter 1002 is located upstream of an electric motor and fan assembly 1004 .
- the filter housing assembly 906 is in fluid communication with an air path 1010 which directs a portion of the sanitized air to the activated carbon filter 1020 .
- the activated carbon filter is in fluid communication with an air path 1022 which directs the air to the motor and fan assembly 1004 .
Abstract
The present disclosure provides a vacuum cleaner (A) including a nozzle base (C) having a main suction opening (26) and a housing (B) pivotally mounted on the nozzle base (C). An airstream suction source (E) is mounted to one of the housing (B) and the nozzle base (C) for selectively establishing and maintaining a suction airstream flowing from the nozzle main suction opening (26) to an exhaust outlet of the suction source. A filter housing (132, 230, 350, 508, 606, 700, 800, 906) is mounted to one of the nozzle base (C) and the housing (B). The filter housing comprises a filter (150, 270, 272, 704, 804) mounted in the filter housing. An ultraviolet light source (160, 280, 706, 806) is disposed in the filter housing and shines on the filter for disinfecting same.
Description
- The present invention relates to vacuum cleaners. More particularly, the present invention relates to vacuum cleaners which condition the exhaust air they emit.
- Both canister and upright vacuum cleaners are well known in the art. Generally, a filter bag is used to filter the dirt and hold the dirt so as to exhaust relatively clean air back into the environment. After multiple uses of the vacuum cleaner, the filter bag must be replaced.
- To avoid the need for vacuum filter bags, and the associated expense and inconvenience of replacing the filter bag, a newer type of vacuum cleaner utilizes cyclonic air flow, a dust cup and one or more filters, rather than a replaceable filter bag, to separate the dirt and other particulates from the suction air stream. Such filters need infrequent replacement.
- Bagless vacuum cleaners typically collect the separated dirt in a dust cup or dirt-collecting receptacle while discharging the cleaned air through a grill assembly. However, the cleaned air being discharged may still contain noxious materials and odor, thereby causing them to exhaust along with the cleaned air into the room. In addition, the dirt-collecting receptacle provides a suitable place for various bacteria and viruses to live and breed. Such bacteria and viruses can be released to the room when the dirt collected in the dirt collecting receptacle is emptied, thereby further polluting the room.
- In order to solve the above described problems, it would be desirable to provide a vacuum cleaner with a means for reducing, if not eliminating, bacteria, viruses and the like. One such means is an ultraviolet (UV) light source which emits radiation powerful enough to destroy bacteria and viruses. Another such means is ozone, which can be created from ambient oxygen by, for example, the UV light source.
- Ozone is a gas whose molecules are composed of three bonded oxygen atoms. Ozone is a highly reactive substance, which is used to treat drinking water and swimming pool water, treat industrial waste, and to bleach inorganic products such as clay. Ozone is the second most powerful oxidant after fluorine. It is also a powerful disinfectant which can destroy airborne bacterial and viral contaminants, and which can oxidize chemical contaminants.
- It would be desirable to improve conventional vacuum cleaner designs by providing a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner. It would also be desirable to simplify assembly, improve filtering and improve the disinfection of the dirt held in a dirt-collecting receptacle while maintaining the environment outside of the vacuum cleaner clean of bacteria, noxious materials and odor.
- Accordingly, the present invention provides a new and improved vacuum cleaner including a UV light source which overcomes difficulties with the prior art while providing better and more advantageous overall results.
- In one embodiment of the present invention, a filter housing assembly for a vacuum cleaner is provided.
- More particularly, in accordance with one aspect of the present invention, the filter housing assembly includes a suction airstream inlet and a suction airstream outlet. The assembly comprises a housing member mounted to the vacuum cleaner. A first filter is mounted in the housing member and an ultraviolet light source is located in the housing member for disinfecting an interior of the filter housing. An electrical socket provides a power source to the ultraviolet light source.
- In accordance with another aspect of the present invention, a vacuum cleaner includes a nozzle base having a main suction opening and a housing pivotally mounted on the nozzle base. An airstream suction source is mounted to one of the housing and the nozzle base for selectively establishing and maintaining a suction airstream flowing from the nozzle main suction opening to an exhaust outlet of the suction source. A filter housing assembly is mounted to one of the nozzle base and the housing. The filter housing assembly comprises a filter mounted in the filter housing assembly. An ultraviolet light source is disposed in the filter housing assembly and shines on the filter for disinfecting same.
- In accordance with still another aspect of the present invention, a vacuum cleaner includes a housing in fluid communication with a main suction opening. An airstream suction source is mounted to the housing for selectively establishing and maintaining a suction airstream flowing from the main suction opening to an exhaust outlet of the suction source. A filter housing assembly is mounted to the housing comprises a first filter and a second filter. An ultraviolet light shines on the first and second filters for disinfecting same.
- In accordance with still yet another aspect of the present invention, a vacuum cleaner comprises a dirt cup and first and second cyclonic airflow chambers located in the dirt cup. The second cyclonic flow chamber is positioned adjacent to and parallel to the first cyclonic flow chamber, wherein the first and second chambers are oriented generally vertically. A filter housing assembly is disposed downstream from the first and second cyclonic flow chambers and accommodates at least one filter for filtering dirt from the airstream. An ultraviolet light source is secured to at least one of the dirt cup and the filter housing assembly.
- Still other aspects of the invention will become apparent from a reading and understanding of the detailed description of the several embodiments hereinbelow.
- The present invention may take physical form in certain parts and arrangements of parts, several embodiments of which will be described in detail in this specification and illustrated in the accompanying drawings which form a part of the invention.
-
FIG. 1 is a front perspective view illustrating a cyclonic air flow vacuum cleaner including a dirt cup and a filter housing assembly in accordance with a first embodiment of the present invention. -
FIG. 2 is a right side elevational view in cross section, and partially broken away, of the cyclonic air flow vacuum cleaner ofFIG. 1 . -
FIG. 3 is a rear elevational view in cross section, and partially broken away, of the cyclonic air flow vacuum cleaner ofFIG. 1 . -
FIG. 4 is a partially exploded front perspective view of the filter housing assembly ofFIG. 2 . -
FIG. 5 is a front perspective view of a filter housing assembly for a vacuum cleaner in accordance with a second embodiment of the present invention. -
FIG. 6 is a top plan view of the filter housing assembly ofFIG. 5 . -
FIG. 7 is a bottom plan view of the filter housing assembly ofFIG. 5 . -
FIG. 8 is a cross-sectional view of the filter housing assembly taken generally along the lines of A-A ofFIG. 6 . -
FIG. 9 is a cross-sectional view of the filter housing assembly taken generally along lines of B-B ofFIG. 6 . -
FIG. 10 is a front perspective view of a dirt cup portion of a vacuum cleaner illustrating a means for cleaning an airstream in accordance with a third embodiment of the present invention. -
FIG. 11 is an enlarged front perspective view of a portion of a cyclonic air flow vacuum cleaner in accordance with a fourth embodiment of the present invention. -
FIG. 12 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a fifth embodiment of the present invention. -
FIG. 13 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a sixth embodiment of the present invention. -
FIG. 14 is a right side elevational view in cross section, and partially broken away, of a means for cleaning an airstream in accordance with a seventh embodiment of the present invention. -
FIG. 15 is a rear elevational view in cross section, and partially broken away, of a means for cleaning an airstream in accordance with an eighth embodiment of the present invention. -
FIG. 16 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a ninth embodiment of the present invention. -
FIG. 17 is a simplified schematic of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a tenth embodiment of the present invention. - It should, of course, be understood that the description and drawings herein are merely illustrative and that various modifications and changes can be made in the structures disclosed without departing from the scope and spirit of the invention. Like numerals refer to like parts throughout the several views.
- While the present disclosure of a means for cleaning an airstream is illustrated as being suitably secured to an upright vacuum cleaner having a cyclonic air flow design, it should be appreciated that the invention can be adapted for a wide variety of other vacuum cleaners as well, such as canister type, non-cyclone and bagged-type vacuum cleaners.
- Referring now to the drawings, wherein the drawings illustrate several embodiments of the present invention only and are not intended to limit same,
FIG. 1 shows an upright vacuum cleaner A including an upright housing section B and a nozzle base section C. The sections B and C are pivotally or hingedly connected through the use of trunnions or another suitable hinge assembly D so that the upright housing section B pivots between a generally vertical storage position (as shown) and an inclined use position. Both the upright and nozzle sections B and C can be made from conventional materials, such as molded plastics and the like. The upright section B includes ahandle 20 extending upward therefrom, by which an operator of the vacuum cleaner A is able to grasp and maneuver the vacuum cleaner. - During vacuuming operations, the nozzle base C travels across a floor, carpet, or other subjacent surface being cleaned. With reference now to
FIGS. 2 and 3 , anunderside 24 of the nozzle base includes a main suction opening 26 formed therein, which can extend substantially across the width of the nozzle at the front end thereof. As is known, the main suction opening 26 is in fluid communication with the vacuum upright body section B through a passage and a connector hose assembly, such as at 30. A rotatingbrush assembly 32 is positioned in the region of the nozzle main suction opening 26 for contacting and scrubbing the surface being vacuumed to loosen embedded dirt and dust. A plurality ofwheels - The upright vacuum cleaner A includes a vacuum or suction source for generating the required suction airflow for cleaning operations. A suitable suction source, such as an electric motor and fan assembly E, generates a suction force in a suction inlet and an exhaust force in an exhaust outlet. The motor assembly airflow exhaust outlet is in fluid communication with an exhaust grill (not visible). If desired, a final filter assembly can be provided for filtering the exhaust airstream of any contaminants which may have been picked up in the motor assembly immediately prior to its discharge into the atmosphere. As shown in
FIGS. 2 and 3 , the motor assembly suction inlet, on the other hand, is in fluid communication with a dust and dirt separating region F of the vacuum cleaner A to generate a suction force therein. - The dust and dirt separating region F housed in the upright section B includes a dirt cup or
container 50 which is releasably connected to the upper housing B of the vacuum cleaner. Cyclonic action in the dust and dirt separating region F removes a substantial portion of the entrained dust and dirt from the suction airstream and causes the dust and dirt to be deposited in thedirt container 50. The suction airstream enters anair manifold 52 of the dirt container through a suctionairstream inlet section 54 which is formed in the air manifold. Thesuction airstream inlet 54 is in fluid communication with a suction airstream hose orconduit 56 through a fitting 58 as illustrated inFIG. 2 . Thedirt container 50 can be mounted to the vacuum cleaner upright section B via conventional means. - In many respects, the
dirt container 50 and theair manifold 52 are like the dirt containers and air manifolds shown and described in commonly owned U.S. patent application Ser. No. 11/082,501, expressly incorporated herein by reference. To the extent possible, other features discussed in reference to one or more of the embodiments of the above-referenced '501 application can also be optionally included on thedirt container 50 and theair manifold 52. - As shown in
FIG. 3 , thedirt container 50 includes first and second generallycylindrical sections cyclonic airflow chamber 66 and a secondcyclonic airflow chamber 68, respectively. The first and second airflow chambers are each approximately vertically oriented and are arranged in a generally parallel relationship. - The first and second cyclonic airflow chambers include respective first and
second cyclone assemblies separator cone 80 and aperforated tube 82 disposed within the separator cone. The separator cones have a larger diameter end located adjacent a top portion of thedirt container 50 and a smaller diameter end spaced from the top portion. Aflange 88 extends radially from the smaller diameter end. As best illustrated inFIG. 2 , the flange is dimensioned to effectively seal off aspace 90, which is defined by aninner surface 92 of eachcylindrical section separator cone 80, from the dirt entrained airstream entering into the first and secondcyclonic airflow chambers - Each
perforated tube 82 extends longitudinally in its respectivecyclonic airflow chamber perforated tube 82 includes a plurality ofsmall holes 94 disposed in a side wall of the tube for removing threads and fibers from the airstream. The diameter of theholes 94 and the number of those holes within theperforated tube 82 directly affect the filtration process occurring within eachcyclonic airflow chambers - Each perforated tube further includes an
upper end 96 in fluid communication with theinlet section 54 of theair manifold 52 and a closedlower end 98. The closed lower end of eachtube 82 includes an outwardly flaredsection 100 for retarding an upward flow of dust that has fallen below thelower end 98. A flange orskirt 102 extends longitudinally from the flaredsection 100 which also blocks rising dust from reentering the separator cone, thereby further improving the filtering of the dust entrained airstream. - With continued reference to
FIGS. 2 and 3 , extending from the closedlower end 98 of eachtube 80 is alaminar flow member 110. Each laminar flow member generally includes at least one pair of blades (not visible) which can have various conformations, such as a cross shape, a rectangular shape, a triangular shape and an elliptical shape when viewed from its side. In addition, the blades can be oriented at angles other than normal to each other. - As illustrated in
FIGS. 2 and 3 , theair manifold 52 is disposed at a top portion of thedirt container 50. The air manifold directs dirty air to each of the first and secondcyclonic flow chambers air manifold 52 includes theinlet section 54 through which dirty air passes and anoutlet section 116. The inlet section, which is in fluid communication with the nozzle main suction opening, directs a flow of the dirty airstream into the first andsecond airflow chambers flange 88 of theseparator cone 80. - As the dirt entrained air enters the
airflow chambers separator cone 80. The dirt and debris is removed from the air flow and collects at a bottom portion of the chambers. However, relatively light fine dust is less subject to a centrifugal force. Accordingly, the fine dust may be contained in the airflow circulating near the bottom portion of theairflow chambers laminar flow member 110 extends into the bottom portion of the airflow chambers, the circulating airflow hits the blade of the laminar flow member, thereby forming a laminar flow. Thus, the cyclonic flow of the airstream is stopped by thelaminar flow member 110. The fine dust in the airflow drops out of the airstream and falls by gravity in each of theairflow chambers - The cleaned and now laminar axial flow of air then makes a 90° turn and becomes a radial flow, as mandated by the presence of the
skirt 102. This change in air flow direction will cause even, more dirt to fall out of the airflow. Then, the air flows again axially up the flange until it is again allowed to flow radially inwardly once it clears the outwardly flaredsection 100 at the lower end of each tube. The cleaned air is then discharged out through theholes 94 of theperforated tube 82 and theoutlet section 116. The outlet section collects a flow of cleaned air from both of the airflow chambers and merges the flow of cleaned air into the single cleanedair outlet passage 120. - With continued reference to
FIG. 2 , theoutlet passage 120 has a longitudinal axis which is oriented approximately parallel to the longitudinal axes of the first and secondcyclonic chambers inlet end 122 of theoutlet passage 120 is secured to a lower portion of theair manifold 52. An outlet end 124 of theoutlet passage 120 extends through an opening located in abottom wall 126 of thedirt container 50 and a corresponding suction airstream inlet 130 (FIG. 4 ) located in afilter housing assembly 132. - As shown in
FIGS. 2 and 3 , thefilter housing assembly 132, which in the present embodiment is located downstream of thedirt container 50, includes ahousing member 134 suitably secured to one of the upright housing section B and a nozzle base section C by conventional means. - With reference now to
FIG. 4 , thehousing member 134 comprises acover 136 releasably secured to abase 138 by conventional fasteners. The cover can include mounting means for mounting the dirt container to thefilter housing assembly 132. The base has an outwardly extendingflange 146 which includes a portion of thesuction airstream inlet 130 which is in fluid communication with the nozzlemain suction opening 26. - The
suction airstream inlet 130 directs the airstream flowing from theoutlet end 124 of theoutlet passage 120 to afilter 150 housed in thefilter housing assembly 132. Thefilter 150 is in fluid communication with theoutlet end 124 of theoutlet passage 120 and retains any dust escaping from the dirt container. Thefilter 150 can comprise a pleated filter material and can be an electrostatic or High-Efficiency Particulate Arresting (HEPA) grade filter, which is capable of trapping very small dust particles. The filter is in fluid communication with a suction airstream outlet (not visible) located on a bottom surface of thebase 138. The outlet is in fluid communication with the inlet of the electric motor and fan assembly E. - The
filter housing assembly 132 further includes an ultraviolet light (UV)source 160 for disinfecting the airstream inside the filter housing. In the present embodiment, the UV light source generates a magnetic or electric field capable of emitting radiation powerful enough to destroy bacteria and viruses. - UV light represents the frequency of light between 200 nanometers (nm) and 400 nm and cannot be seen with the naked eye. Within the UV spectrum lie three distinct bands of light: UV-A, UV-B and UV-C. Longwave UV light (approximately 315 nm to approximately 400 nm), or UV-A, refers to what is commonly called black light. UV-B (approximately 280 nm to approximately 315 nm), or midrange UV, generally causes sunburn. Germicidal UV light (approximately 200 nm to approximately 280 nm), or UV-C, is effective in microbial control. In the present embodiment, the UV
light source 160 can be a germicidal UV-C light source that preferably emits radiation having wavelength of approximately 254 nm. This wavelength has been proven effective in diminishing or destroying bacteria, common germs, yeasts, mold and viruses to which the UV light source is exposed. However, the germicidalUV light source 160 is not limited to UV light sources having wavelength of 254 nm. It should be appreciated that other UV light sources with germicidal properties could also be used. - The UV light source can be mounted in the
housing member 134 by conventional means and is preferably disposed above thefilter 150 so that the UV light source can shine on the filter. It has been proven that the residence time of bacteria, fungi and/or viruses trapped in or on the filter is great enough that exposure to the UV light source will either destroy the micro-organism or neutralize its ability to reproduce. It will be appreciated that theUV light source 160 can remain on after the electric motor and fan assembly E or the vacuum cleaner is turned off. This will extend the exposure time for the micro-organisms that were deposited onto thefilter 150 to the UV light source. After a set time, the UV light source will then be automatically turned off. To ensure that theUV light source 160 works effectively, thecover 136 can be removed from the base 138 so that regular maintenance checks can be performed to remove any dust build up on the UV light source. - An
electrical socket 162 is mounted on an end of the UVlight source 160 for providing a power source from the vacuum cleaner to the UV light source. To this end, thecover 136 can include an opening for an electrical connector which provides the power source to theelectrical socket 162. For example, the power source can be the same power source that powers the electric motor and fan assembly E. Typically, the UVlight source 160 has a low current and draws under twenty-four watts. However, based on the close proximity of the UV light source to thefilter 150, the intensity of the UV light source can be equivalent to a sixty watt light bulb. - It should be appreciated that portions of the vacuum cleaner irradiated by the germicidal UV light source, such as the dirt container and the filter housing assembly, can be made of a UV resistant material. One suitable such material can be UV resistant plastic material, such as NORYL®, which is manufactured by General Electric Plastics Global Products, and is certified for use with ultraviolet light.
- In addition to disinfecting the airstream inside the filter housing 202, the UV
light source 160 can create ozone (O3) from ambient oxygen (O2). Ultraviolet wavelengths shorter than 200 nm (typically 185 nm) are capable of producing ozone from oxygen in the air. Ozone is a gas whose molecules are composed of three bonded oxygen atoms. It is also a powerful disinfectant which can destroy any remaining airborne bacterial and viral contaminants. The ozone can also oxidize chemical contaminants. One of ozone's advantages is that it can be carried by air into places that the UV radiation cannot reach directly. To avoid release of ozone into the environment, the airstream can be filtered through carbon or other adsorbent medium in thehousing member 134 or passed through a metallic mesh or grid, such as zinc (to form zinc oxide), covering the suction airstream outlet located on the bottom surface of thebase 138. Importantly, the by-products of ozone degradation have biological contaminant destroying ability, as well. Alternatively, the ozone laden airstream can be passed through a final filter assembly having an adsorbent medium immediately prior to its discharge into the atmosphere. - It should be appreciated that the amount of ozone emitted can be controlled by filtering the
UV light source 160 thus keeping the level of ozone below the regulated environmental limits. A closed loop control system (not shown) can be implemented to monitor the amount of ozone in ambient air and can turn off theUV light source 160 if the amount of ozone is close the regulated environmental limits. As the level of ozone decreases, the closed loop control system can turn back on theUV light source 160. It should also be appreciated that thefilter housing assembly 132 can include a separate conventional ozonizer for producing ozone in thehousing member 134. - Similar to the aforementioned embodiment, a second embodiment of the present invention is shown in
FIGS. 5-9 . - With reference now to
FIGS. 5-7 , afilter housing assembly 230 for a vacuum cleaner which can be a canister or an upright vacuum cleaner is there shown. The housing assembly can be located downstream of a dirt container and includes asuction airstream inlet 232 and ahousing member 234. Thesuction airstream inlet 232 is in fluid communication with a nozzle main suction opening. Thehousing member 234 is suitably secured to a housing (not shown) of the vacuum cleaner. - The
housing member 234 comprises acover 236 releasably secured to abase 238. To secure the cover to the base, the cover includes at least onetab 242 having anopening 244, the tab extending outwardly from anedge 246 of the cover. Thebase 238 includes at least one correspondingprotrusion 248 having anopening 250. In this embodiment, threesuch tabs 242 andprotrusions 248 are provided. The cover is positioned on the base such that the openings of the tabs are aligned with the openings of the protrusions. Conventional fasteners, such as a bolt and a nut, can then be used to secure thecover 236 to thebase 238. - The
cover 236 further includes a raisedshelf 256 having a pair ofapertures 258. The apertures can allow thefilter housing assembly 230 to be mounted to a bottom wall of a dirt container. Extending from a bottom surface of the shelf to theedges 246 of thecover 236 is a plurality of reinforcing members orgussets shelf 256 and the dirt container. - With reference to
FIGS. 8 and 9 , thefilter housing assembly 230 houses a pair offilters filter housing assembly 230. Thefirst filter 270 is in fluid communication withsuction airstream inlet 232. The first filter can include an open cell flexible foam material having a large dust retaining capacity. The first filter can also be impregnated with particles of carbon, preferably in the form of activated charcoal which has a large surface area for absorbing odors. Thesecond filter 272 is disposed downstream of the first filter. Thesecond filter 272 retains any dust which escapes from thefirst filter 270 and can comprise a pleated filter material. In one embodiment, thesecond filter 272 can be an electrostatic or HEPA grade filter, which is capable of trapping very small dust particles. The second filter is in fluid communication with asuction airstream outlet 274 located on a bottom surface of thebase 238. Theoutlet 274, which can be covered by a grill, is in fluid communication with the inlet of an electric motor and fan assembly (not shown) of the vacuum cleaner. - Each
filter housing member 234 by conventional means. As shown inFIGS. 8 and 9 , the first andsecond filters housing member 234. This ensures that the airstream flowing through the housing member is filtered by each filter. - With continued reference to
FIGS. 8 and 9 , thefilter housing assembly 230 further includes a germicidal ultraviolet light (UV)source 280 located in thehousing member 234 for disinfecting the airstream inside the filter housing. As shown inFIG. 9 , the UVlight source 280 can be mounted in thehousing member 234 by conventional means. The UV light source extends generally normal from aside wall 282 of thebase 238 and is disposed between thefirst filter 270 and thesecond filter 272 so that the UV light source can shine on both filters to disinfect the filters. Anelectrical socket 284 is mounted on an outer surface of theside wall 282 for providing a power source from the vacuum cleaner to the UVlight source 280. Again, it should be appreciated that the power source that powers the electric motor and fan assembly can also power the UV light source. - Similar to the first embodiment, in addition to disinfecting the airstream inside the filter housing, the UV
light source 280 can create ozone from ambient oxygen. Alternatively, thefilter housing assembly 230 can include a separate conventional ozonizer for producing ozone in thehousing member 234. - Similar to the aforementioned embodiment, a third embodiment of the present invention is shown in
FIG. 10 . - In many respects,
dirt container 300 is similar to thedirt container 50 described above. Thedirt container 300, which can be mounted to a vacuum cleaner upright section via conventional means, includes first and second generallycylindrical sections cyclonic airflow chamber 308 and a secondcyclonic airflow chamber 310, respectively. The first and second airflow chambers are each approximately vertically oriented and are arranged in a general parallel relationship. - The first and second cyclonic airflow chambers include respective first and
second cyclone assemblies separator cone 320 and a perforated tube (not visible) disposed within the separator cone. The separator cones have a larger diameter end located adjacent a top portion of thedirt container 300 and a smaller diameter end spaced from the top portion. Aflange 324 extends radially from the smaller diameter end. The flange is dimensioned to effectively seal off a portion of eachcylindrical section cyclonic airflow chambers - Each perforated tube extends longitudinally in its respective
cyclonic airflow chamber section 334 for retarding an upward flow of dust that has fallen below the lower end of the perforated tube. - The air manifold 330, which is similar to the
air manifold 52 described above, is disposed at a top portion of thedirt container 300. The air manifold directs dirty air to each of the first and secondcyclonic flow chambers outlet section 338. The outlet section collects a flow of cleaned air from both of the airflow chambers and merges the flow of cleaned air into the single cleanedair outlet passage 340. - The
outlet passage 340 has a longitudinal axis which is oriented approximately parallel to the longitudinal axes of the first and secondcyclonic airflow chambers outlet passage 340 is secured to a lower portion of the air manifold 330. An outlet end of theoutlet passage 340 extends through an opening located in abottom wall 342 of thedirt container 300 and acorresponding inlet 348 located in a filter housing assembly 350. It should be appreciated that the filter housing assembly 350 can be a filter housing assembly similar to thefilter housing assembly 132 and filterhousing assembly 230 described above. - The
dirt container 300 further includes a germicidal ultraviolet (UV)light source 352 mounted between the firstcyclonic flow chamber 308 and the secondcyclonic flow chamber 310. More particularly, theflanges 324 include a recess (not visible) which define an opening between the airflow chambers dimensioned to receive the UV light source. As theUV light source 352 is being positioned in the opening, anelectrical socket 354 attached to an end of the UV light source for providing a power source to the UV light source will abut a top surface of theflanges 324. Thus, once secured, the UV light source is oriented approximately parallel to the longitudinal axes of the first and secondcyclonic airflow chambers - In operation, as the dirt entrained air enters the
airflow chambers separator cone 320. The dirt and debris is removed from the air flow and collects at a bottom portion of the chambers. The UVlight source 352 shines on the bottom portion of the chambers to destroy any bacteria and/or viruses trapped in the removed dirt and debris. In addition to disinfecting the airstream inside theairflow chambers light source 352 can act as an ozonizer by producing abundant amounts of ozone from ambient oxygen in the airflow chambers to destroy any remaining airborne bacterial and viral contaminants contained in the airflow chambers. The cleaned air is then discharged out through the holes of the perforated tube and theoutlet section 338 of the air manifold 330 and into the single cleanedair outlet passage 340. - Similar to the aforementioned embodiments, a fourth embodiment of the present invention is shown in
FIG. 11 . Again, in many respects, a dirt container 400 (shown schematically) and anair manifold 402 disposed at a top portion of the dirt container are similar to those described above. - The
dirt container 400, which can be mounted to a vacuum cleaner (not shown) via conventional means, includes first and second generallycylindrical sections cyclonic airflow chamber 410 and a secondcyclonic airflow chamber 412, respectively. The first and second airflow chambers can be each approximately vertically oriented and can be arranged in a general parallel relationship. - The first and second cyclonic airflow chambers include respective first and
second cyclone assemblies separator cone 420 and a perforated tube (not visible) disposed within the separator cone. A closed lower end of each tube includes an outwardly flaredsection 424 for retarding an upward flow of dust that has fallen below the lower end of the perforated tube. - The separator cones have a larger diameter end located adjacent a top portion of the
dirt container 400 and a smaller diameter end spaced from the top portion. Aflange 428 extends radially from the smaller diameter end. The flange is dimensioned to effectively seal off a portion of eachcylindrical section cyclonic airflow chambers - Each
flange 428 includes at least oneaperture 430 for securing at least one germicidal ultraviolet (UV)light source 432. In this embodiment, each flange includes a pair of diametrically opposed apertures for securing two UV light sources. Similar to the previous embodiments, theUV light sources 432 disinfect the airstream inside theairflow chambers indicator 440, such as a light emitting diode, disposed in both of the first andsecond airflow chambers UV light sources 432. In this embodiment, four indicators are mounted in four spaced apartopenings 442 located on eachflange 428. EachUV light source 432 andindicator 440 can be powered by a conventional power source, such as the power source that powers an electric motor and fan assembly. -
FIG. 12 schematically illustrates a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner in accordance with a fifth embodiment of the present invention. - As shown in
FIG. 12 , a separateconventional ozonizer 500 for producing ozone is located downstream of asuction nozzle 502 and upstream of adirt cup 504. The dirt cup can be similar to the dirt containers described above. Ozonizers of the general type under consideration are shown and described, for example, in U.S. Pat. Nos. 5,484,472; 5,667,564; 5,814,135; 5,911,957; 6,042,637; and 6,565,805. The disclosures of these patents are incorporated herein by reference. As shown therein, these conventional ozonizers generally generate ozone by passing an oxygen-containing gas between two electrodes, separated by a dielectric material. The oxygen is converted to ozone as it travels through the electrical corona. - The
ozonizer 500 directs ozone into asuction flow path 506 which is in fluid communication with an inlet of thedirt cup 504. The ozone is circulated with the dirt entrained airstream entering into the dirt cup from thesuction nozzle 502 of the vacuum cleaner. As such, the ozone will effectively kill bacteria, viruses and fungi contained in the airstream. Ozone will also kill many of the bugs trapped in the removed dirt and debris contained in thedirt cup 504. The cleaned air flows out of the dirt cup and is directed to afilter housing assembly 508. - Similar to the previous embodiments, the
filter housing assembly 508 can house at least one filter to retain any dust escaping from thedirt cup 504. The at least one filter can comprise a pleated filter material and can be an electrostatic or HEPA grade filter. Thefilter housing assembly 508 can include a germicidal UV source for further disinfecting the airstream inside the filter housing assembly. An outlet of thefilter housing assembly 508 is in fluid communication with an inlet of an electric motor andfan assembly 510. - The
ozonizer 500 and the UV light source can be powered by a conventional power source, such as a battery or the power source that powers the electric motor andfan assembly 510. - A sixth embodiment of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner is schematically illustrated in
FIG. 13 . - As shown in
FIG. 13 , dirt entrained air enters adirt cup 600 from asuction nozzle 602 of the vacuum cleaner via asuction flow path 604, the dirt cup again can be similar to the dirt containers described above. The dirt cup separates dirt and debris from the airstream and circulates the cleaned air to afilter housing assembly 606. Similar to the previous embodiments, thefilter housing assembly 606 can house at least one filter to retain any dust escaping from thedirt cup 600. Thefilter housing assembly 606 includes a germicidal UV source (not shown) which disinfects the airstream inside the filter housing assembly. In addition to disinfecting the airstream inside the filter housing assembly, and as set forth above, the UV light source creates ozone from ambient oxygen. The ozone will eliminate any bacteria, fungi and/or viruses remaining in the airstream or trapped in or on the filter. Thefilter housing assembly 606 is in fluid communication with anair path 608 which directs a portion of the sanitized air to an inlet of an electric motor andfan assembly 610. The filter housing assembly also redirects a portion of the airstream back to thedirt cup 604 through aseparate air path 612. The redirected airstream contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup. Generally, ozone has a half-life of only about twenty-two minutes at ambient temperature. Thus, the ozone molecules will eventually turn into common oxygen molecules. - A seventh embodiment of a means for cleaning an airstream, specifically for redirecting airstream containing ozone from a
filter housing assembly 700 to adirt cup 702, is illustrated inFIG. 14 . Thefilter housing assembly 700 and thedirt cup 702 are similar to thedirt container 50 and thefilter housing assembly 132 described above. Accordingly, no further discussion relating to the structure of the dirt cup and filter housing will be provided. - The
dirt cup 702 separates dirt and debris from the airstream and circulates the cleaned air to the filter housing assembly. Thefilter housing assembly 700 can house at least onefilter 704 to retain any dust escaping from the dirt cup and includes an isolatedgermicidal UV source 706 which shines on a surface of the filter for disinfecting the filter and the airstream flowing through the filter housing assembly. In addition to disinfecting the airstream, and as set forth above, the UV light source creates ozone from ambient oxygen. As shown inFIG. 14 , the ozone created in the filter housing assembly can be redirected back to thedirt cup 702 through a separate conduit orhose 708. - The hose includes a
first end 714 in fluid communication with an upper section 718 of the filter housing assembly which contains theUV source 706. Asecond end 720 of thehose 708 is in fluid communication with acyclonic airflow chamber 722 partially defined in thedirt cup 702. Eachhose end valve second hose end 720 and located within thecyclonic airflow chamber 722 is acup 730 including aninlet section 732 having a first diameter and anoutlet section 734 having a second, smaller, diameter. This cup arrangement increases the velocity of the airstream through the cup which creates a higher speed lower pressure area in thedust cup 702 to create a venturi effect. The venturi effect also creates an increased vacuum in thecup 730 which opens eachcheck valve hose 708. Because the upper section 718 of thefilter housing assembly 700 is isolated from the main air flow from thedirt cup 702, the increased vacuum in the cup suctions ambient air from the upper section 718 to thecyclonic airflow chamber 722 of thedirt cup 702. This redirected ambient air contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup. It should also be appreciated that thehose 708 can include a conventional disconnect (not shown) so that the dirt cup can be easily removed from the vacuum cleaner without interference from the hose. - Similar to the seventh embodiment, an eighth embodiment of a means for redirecting airstream containing ozone from a
filter housing assembly 800 to adirt cup 802 is illustrated inFIG. 15 . - The
dirt cup 802 separates dirt and debris from the airstream and circulates the cleaned air to thefilter housing assembly 800 which can include at least onefilter 804 to retain any dust escaping from the dirt cup and agermicidal UV source 806. The UV source disinfects the filter and the airstream flowing through the filter housing assembly and can create ozone from ambient oxygen. As shown inFIG. 15 , the ozone created in the filter housing assembly can be redirected back to thedirt cup 802 through a separate conduit orhose 808. - The hose includes a
first end 814 in fluid communication with alower section 818 of the filter housing assembly which contains the at least onefilter 804. Asecond end 820 of the hose is in fluid communication with acyclonic airflow chamber 822 partially defined in thedirt cup 802. Mounted to thesecond hose end 820 and located within thecyclonic airflow chamber 822 is acup 830 having features similar to that ofcup 730. Air flowing through the cup has an increased velocity compared to the air flowing through thecyclonic airflow chamber 822. As such, a venturi effect is created which increases vacuum in thecup 830. This, in turn, opens avalve 834 in thesecond hose end 820 and a valve (not shown) in thefirst hose end 814. This increased vacuum suctions a portion of the airstream flowing through the at least onefilter 804 from the dirt cup back to thecyclonic airflow chamber 822. This redirected airstream contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup. Again, it should also be appreciated that thehose 808 can include a conventional disconnect (not shown) so that the dirt cup can be easily removed from the vacuum cleaner without interference from the hose. - A ninth embodiment and a tenth embodiment of a means for eradicating bacteria, viruses and fungi in the airflow of a vacuum cleaner are schematically illustrated in
FIGS. 16 and 17 , respectively. - In each embodiment, dirt entrained air enters a
dirt cup 900 from asuction nozzle 902 of the vacuum cleaner via asuction flow path 904, the dirt cup again can be similar to the dirt containers described above. The dirt cup separates dirt and debris from the airstream and circulates the cleaned air to afilter housing assembly 906. Similar to the previous embodiments, thefilter housing assembly 906 can house at least one filter to retain any dust escaping from thedirt cup 900. Thefilter housing assembly 906 includes a germicidal UV source (not shown) which disinfects the airstream inside the filter housing assembly. In addition to disinfecting the airstream inside the filter housing assembly, and as set forth above, the UV light source creates ozone from ambient oxygen. The ozone can eliminate any bacteria, fungi and/or viruses remaining in the airstream or trapped in or on the filter. The filter housing assembly redirects a portion of the airstream back to thedirt cup 904 through aseparate air path 910. The redirected airstream contains sufficient amounts of ozone which can kill many of the bugs trapped in the removed dirt and debris contained in the dirt cup. - In the embodiment of
FIG. 16 , thefilter housing assembly 906 is also in fluid communication with anair path 912 which directs a portion of the sanitized air to an inlet of an electric motor andfan assembly 916. Generally, ozone has a half-life of only about twenty-two minutes at ambient temperature. Thus, the ozone molecules entrained in this portion of sanitized air will eventually turn into common oxygen molecules. However, ozone emission into ambient can be subject to governmental regulations. Therefore, the motor andfan assembly 916 is in fluid communication with anair path 918 which directs the air through a carbon or activated carbon filter 920 (also known as charcoal or activated charcoal) prior to its discharge into the atmosphere. The activated carbon filter prevents release of ozone into the environment by converting the ozone into oxygen. - In the embodiment of
FIG. 17 , an activatedcarbon filter 1002 is located upstream of an electric motor andfan assembly 1004. Particularly, thefilter housing assembly 906 is in fluid communication with anair path 1010 which directs a portion of the sanitized air to the activated carbon filter 1020. The activated carbon filter is in fluid communication with an air path 1022 which directs the air to the motor andfan assembly 1004. - The disclosure has been described with reference to the preferred embodiments. Obviously, modifications and alterations will occur to others upon reading and understanding the preceding detailed description. It is intended that the disclosure be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (29)
1. A filter housing assembly for a vacuum cleaner including a suction airstream inlet and a suction airstream outlet, said filter housing assembly comprising:
a housing member mounted to the vacuum cleaner;
a first filter mounted in said housing member;
an ultraviolet light source located in said housing member for disinfecting an interior of said filter housing; and
an electrical circuit for providing a power source to said ultraviolet light source.
2. The assembly of claim 1 wherein said first filter is in fluid communication with said suction airstream inlet and further including a second filter disposed downstream of said first filter, said second filter being in fluid communication with said suction airstream outlet.
3. The assembly of claim 2 wherein said first filter includes an open cell flexible foam material.
4. The assembly of claim 2 wherein said second filter includes one of a pleated filter material, an electrostatic filter and a High-Efficiency Particulate Arresting (HEPA) filter material.
5. The assembly of claim 2 wherein said ultraviolet light source is disposed between said first filter and said second filter.
6. (canceled)
7. The assembly of claim 1 wherein the electrical circuit includes an electrical socket is mounted on an outer surface of said housing member.
8. The assembly of claim 1 further comprising an ozonizer for disinfecting air inside said housing member.
9. A vacuum cleaner including:
a nozzle base including a main suction opening;
a housing pivotally mounted on said nozzle base;
an airstream suction source mounted to one of said housing and said nozzle base for selectively establishing and maintaining a suction airstream flowing from said nozzle main suction opening to an exhaust outlet of said suction source; and
a filter housing assembly mounted to one of said nozzle base and said housing, said filter housing assembly comprising:
a filter mounted in said filter housing assembly; and
an ultraviolet light source disposed in said filter housing assembly and shining on said filter for disinfecting same.
10. The vacuum cleaner of claim 9 wherein said filter housing assembly further includes an electrical socket for providing a power source to said ultraviolet light source.
11. The vacuum cleaner of claim 9 wherein said filter housing assembly further includes a cover releasably secured to a base, said cover including a suction airstream inlet in fluid communication with said nozzle main suction opening, said base including a suction airstream outlet in fluid communication with an inlet of said suction source.
12. The vacuum cleaner of claim 9 further including a dirt cup selectively mounted to said housing, said dirt cup being located upstream of said filter housing assembly.
13. The vacuum cleaner of claim 12 further including a cyclonic airflow chamber.
14. The vacuum cleaner of claim 13 further including an ozone source for disinfecting the air inside said cyclonic airflow chamber.
15. The vacuum cleaner of claim 9 further including an indicator for indicating a power status of said ultraviolet light source.
16. A vacuum cleaner including:
a housing in fluid communication with a main suction opening;
an airstream suction source mounted to said housing for selectively establishing and maintaining a suction airstream flowing from said main suction opening to an exhaust outlet of said suction source; and
a filter housing assembly mounted to said housing, said filter housing assembly comprising:
a first filter,
a second filter, and
an ultraviolet light source shining on said first and second filters for disinfecting same.
17. The vacuum cleaner of claim 16 wherein said filter housing assembly further includes an electrical circuit for providing a power source to said ultraviolet light source.
18. The vacuum cleaner of claim 16 wherein said filter housing assembly further includes a base and a cover releasably secured to the base, said cover including a suction airstream inlet in fluid communication with said main suction opening, said base including a suction airstream outlet in fluid communication with an inlet of said airstream suction source.
19. The vacuum cleaner of claim 16 further including a dirt cup selectively mounted to said housing, said dirt cup being located upstream of said filter housing assembly.
20. The vacuum cleaner of claim 19 wherein said dirt cup includes a cyclonic airflow chamber.
21. A vacuum cleaner comprising:
a dirt cup;
a cyclonic flow chamber located upstream from said dirt cup;
a filter housing assembly disposed downstream from said cyclonic flow chamber for accommodating at least one filter for filtering dirt from the airstream; and
an ultraviolet light source secured to at least one of said dirt cup and said filter housing assembly.
22. The vacuum cleaner of claim 21 wherein said ultraviolet light source is mounted to said cyclonic flow chamber, said ultraviolet light source shining on dirt accumulated in said dirt cup for disinfecting same.
23. The vacuum cleaner of claim 21 wherein said ultraviolet light source is disposed inside said filter housing assembly.
24. (canceled)
25. The vacuum cleaner of claim 21 further comprising an ozonizer communicating with at least one of said dirt cup and said filter housing assembly.
26. The vacuum cleaner of claim 21 wherein said ultraviolet light source generates a concentration of ozone.
27. The vacuum cleaner of claim 21 wherein said filter housing assembly is in fluid communication with said dirt cup for disinfecting dirt accumulated in said dirt cup.
28. The vacuum cleaner of claim 27 further comprising an air path for communicating said filter housing assembly with said dirt cup to redirect a portion of the airstream from said filter housing assembly to said dirt cup whereby the redirected airstream contains sufficient amounts of ozone generated from said ultraviolet light source for sanitizing the dirt in said dirt cup.
29. The vacuum cleaner of claim 20 further comprising an air conduit having a first end section in communication with said filter housing assembly and a second end section in communication with said cyclonic airflow chamber, said first end section of said air conduit being configured to created a suction for redirecting a portion of the airstream from said filter housing assembly to said cyclonic airflow chamber whereby the redirected airstream contains sufficient amounts of ozone generated from said ultraviolet light source for sanitizing dirt accumulated in said dirt cup.
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US12/067,685 US20080263817A1 (en) | 2005-09-23 | 2006-09-21 | Vacuum Cleaner with Ultraviolet Light Source and Ozone |
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US12/067,685 US20080263817A1 (en) | 2005-09-23 | 2006-09-21 | Vacuum Cleaner with Ultraviolet Light Source and Ozone |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070294856A1 (en) * | 2006-06-27 | 2007-12-27 | Park Sang J | Dust collecting unit of vacuum cleaner |
US20110258806A1 (en) * | 2010-04-21 | 2011-10-27 | Wei-Teh Ho | Vacuum cleaner |
US20130133155A1 (en) * | 2011-11-28 | 2013-05-30 | Julio C. Perez | Vacuum cleaner incorporating noise suppression system |
WO2020219821A3 (en) * | 2019-04-24 | 2020-12-10 | Rifkin Andrew B | Compact ultraviolet light source apparatus |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070189834A1 (en) * | 2006-02-10 | 2007-08-16 | Thethe Hartz Mountain Corporation | Stain and odor detection and cleanup system |
KR101250154B1 (en) * | 2006-02-28 | 2013-04-04 | 엘지전자 주식회사 | Vacuum Cleaner |
US20070209334A1 (en) * | 2006-03-10 | 2007-09-13 | Gbd Corp. | Vacuum cleaner with a removable screen |
US20070209144A1 (en) * | 2006-03-10 | 2007-09-13 | Bissell Homecare, Inc. | Vacuum cleaner with improved hygenic performance |
GB2440514A (en) * | 2006-08-01 | 2008-02-06 | Dyson Technology Ltd | A filter assembly |
GB2440515B (en) * | 2006-08-01 | 2011-06-15 | Dyson Technology Ltd | A filter assembly |
US8869344B2 (en) | 2006-12-12 | 2014-10-28 | G.B.D. Corp. | Surface cleaning apparatus with off-centre dirt bin inlet |
US20210401246A1 (en) | 2016-04-11 | 2021-12-30 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
US20080264257A1 (en) * | 2007-04-25 | 2008-10-30 | Oreck Holdings, Llc | Method and apparatus for illuminating and removing airborne impurities within an enclosed chamber |
US11751733B2 (en) | 2007-08-29 | 2023-09-12 | Omachron Intellectual Property Inc. | Portable surface cleaning apparatus |
US8105532B2 (en) * | 2008-10-27 | 2012-01-31 | Verilux, Inc. | Mobile disinfectant device and methods |
US7834335B2 (en) * | 2008-10-27 | 2010-11-16 | Verilux, Inc. | Hand held sterilization devices |
WO2010102394A1 (en) | 2009-03-11 | 2010-09-16 | G.B.D. Corp. | Hand vacuum cleaner with removable dirt chamber |
CA2967272C (en) | 2009-03-13 | 2018-01-02 | Omachron Intellectual Property Inc. | Hand vacuum cleaner |
US10722086B2 (en) | 2017-07-06 | 2020-07-28 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
US11690489B2 (en) | 2009-03-13 | 2023-07-04 | Omachron Intellectual Property Inc. | Surface cleaning apparatus with an external dirt chamber |
JP4941540B2 (en) * | 2009-11-27 | 2012-05-30 | パナソニック株式会社 | Cyclone dust collector and electric vacuum cleaner provided with the same |
KR101262701B1 (en) * | 2010-10-22 | 2013-05-08 | 삼성전자주식회사 | Vacuum cleaner having sterilization ability |
CN102476110A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Device for cleaning outer surface of lens of lamp holder of ultraviolet lamp |
US20120246863A1 (en) * | 2011-04-01 | 2012-10-04 | Douglas Ryan J | Control systems for uvc light source temperature and function in sanitizing device |
US8330121B2 (en) * | 2011-05-03 | 2012-12-11 | Verilux, Inc. | Dynamic display and control of UV source for sanitization in mobile devices |
EP2775893A4 (en) * | 2011-11-10 | 2015-09-02 | Stryker Corp | Cleaning system and equipment therefor |
US9492045B2 (en) * | 2012-03-09 | 2016-11-15 | Omachron Intellectual Property Inc. | Filter assembly for a surface cleaning apparatus |
CN104013354A (en) * | 2014-06-10 | 2014-09-03 | 常州华亿阳电器有限公司 | Dust collector with sterilization function |
US11918170B2 (en) | 2016-04-11 | 2024-03-05 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
US10258210B2 (en) | 2016-12-27 | 2019-04-16 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
US10548443B2 (en) * | 2016-08-10 | 2020-02-04 | Robert Bosch Tool Corporation | Method and apparatus for cleaning a dust storage container |
US10271704B2 (en) | 2016-12-27 | 2019-04-30 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
US11285495B2 (en) | 2016-12-27 | 2022-03-29 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
US10299643B2 (en) | 2016-12-27 | 2019-05-28 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
US10016106B1 (en) | 2016-12-27 | 2018-07-10 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
US10405709B2 (en) | 2016-12-27 | 2019-09-10 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
US10827891B2 (en) | 2016-12-27 | 2020-11-10 | Omachron Intellectual Property Inc. | Multistage cyclone and surface cleaning apparatus having same |
DE102017208968B4 (en) | 2017-05-29 | 2020-04-16 | BSH Hausgeräte GmbH | Vacuum cleaner with exhaust air operated jet pump |
US10506904B2 (en) | 2017-07-06 | 2019-12-17 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
US10842330B2 (en) | 2017-07-06 | 2020-11-24 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
US10537216B2 (en) | 2017-07-06 | 2020-01-21 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
US10631693B2 (en) | 2017-07-06 | 2020-04-28 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
US10702113B2 (en) | 2017-07-06 | 2020-07-07 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
US10750913B2 (en) | 2017-07-06 | 2020-08-25 | Omachron Intellectual Property Inc. | Handheld surface cleaning apparatus |
CN107692926A (en) * | 2017-09-27 | 2018-02-16 | 江苏美的清洁电器股份有限公司 | Cleaning device |
CN107581984B (en) * | 2017-11-07 | 2020-06-23 | 仪征正乾机械有限公司 | Intelligent cleaning system based on mildew detection and control method thereof |
US11478116B2 (en) | 2018-01-15 | 2022-10-25 | Omachron Intellectual Property Inc | Surface cleaning apparatus |
US10932634B2 (en) | 2018-05-30 | 2021-03-02 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
US10827889B2 (en) | 2018-05-30 | 2020-11-10 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
US11154169B2 (en) | 2018-08-13 | 2021-10-26 | Omachron Intellectual Property Inc. | Cyclonic air treatment member and surface cleaning apparatus including the same |
IT201900016307A1 (en) * | 2019-09-13 | 2021-03-13 | De Longhi Appliances Srl | VACUUM CLEANER DEVICE AND SANITIZATION METHOD OF A VACUUM CLEANER DEVICE |
US11246462B2 (en) | 2019-11-18 | 2022-02-15 | Omachron Intellectual Property Inc. | Multi-inlet cyclone |
US11751740B2 (en) | 2019-11-18 | 2023-09-12 | Omachron Intellectual Property Inc. | Multi-inlet cyclone |
Citations (96)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1783859A (en) * | 1929-01-19 | 1930-12-02 | Regina Corp | Disinfecting attachment for vacuum cleaners |
US1863883A (en) * | 1928-07-13 | 1932-06-21 | Frank M Schneider | Suction cleaner germ destroying device |
US2184732A (en) * | 1936-06-11 | 1939-12-26 | Bendix Prod Corp | Vacuum cleaner |
US2188428A (en) * | 1939-09-19 | 1940-01-30 | Maud E Evans | Auxiliary bag for vacuum cleaners |
US2198568A (en) * | 1937-09-08 | 1940-04-23 | Jr Edward H Yonkers | Suction cleaner |
US2242163A (en) * | 1937-03-30 | 1941-05-13 | Dikkers & Bargeboer Nv | Vacuum cleaner and the like apparatus |
US2296234A (en) * | 1940-07-05 | 1942-09-15 | Apex Electrical Mfg Co | Suction cleaner |
US2297933A (en) * | 1940-04-22 | 1942-10-06 | Jr Edward H Yonkers | Suction cleaner |
US2318088A (en) * | 1939-05-15 | 1943-05-04 | P A Geier Co | Suction cleaning apparatus |
US2590152A (en) * | 1945-01-16 | 1952-03-25 | John T Kilbride | Vacuum cleaner with sterilizing means |
US2611679A (en) * | 1944-05-19 | 1952-09-23 | Whyatt H Haulenbeek | Air treatment device |
US2632912A (en) * | 1948-10-29 | 1953-03-31 | Hoover Co | Illuminating means for tank type suction cleaners |
US2648396A (en) * | 1949-02-03 | 1953-08-11 | James B Kirby | Vacuum cleaner |
US3667454A (en) * | 1970-06-12 | 1972-06-06 | Larry W Prince | Toothbrush with ultraviolet emitter |
US3798704A (en) * | 1971-02-26 | 1974-03-26 | Electrolux Ab | Self-acting combination rug and floor vacuum cleaner nozzle |
US3975790A (en) * | 1974-10-11 | 1976-08-24 | Lawrence Patterson | Cleaning apparatus having ultraviolet lamp fixture |
US3989184A (en) * | 1973-06-26 | 1976-11-02 | Hartmut Albishausen | Apparatus for collecting and classifying a mixture of solid, gaseous and liquid constituents |
US4135269A (en) * | 1977-11-18 | 1979-01-23 | Marston Laurel L | Mop sterilizer and dryer |
US4355436A (en) * | 1981-01-19 | 1982-10-26 | Samuel Hertzberg | Vacuum cleaners |
US4485519A (en) * | 1982-05-24 | 1984-12-04 | Carpet Clinic Ltd. | Ozone cleaning system |
US4498214A (en) * | 1983-02-28 | 1985-02-12 | The Hoover Company | Carpet cleaning apparatus with auxiliary cleaning device arrangement |
US4786812A (en) * | 1986-11-28 | 1988-11-22 | Dora Dicamillo 1988 Trust | Portable germicidal ultraviolet lamp |
US4907316A (en) * | 1988-02-09 | 1990-03-13 | Interlava Ag | Device for disinfecting rooms and floor coverings |
US5014387A (en) * | 1989-12-26 | 1991-05-14 | The Scott Fetzer Company | Brush roll mounting |
US5029359A (en) * | 1990-02-28 | 1991-07-09 | Ortega Louis A | Portable vacuum cleaner exhaust sterilization apparatus |
US5040264A (en) * | 1990-05-04 | 1991-08-20 | Bryant Roy D | Deodorizing vacuum bag with static protection |
US5042108A (en) * | 1989-05-23 | 1991-08-27 | Matsushita Electric Industrial Co., Ltd. | Suction pipe for a vacuum cleaner |
US5045118A (en) * | 1990-05-04 | 1991-09-03 | Tennant Company | Method of removing debris and dust from a carpet |
US5074997A (en) * | 1990-01-25 | 1991-12-24 | Riley And Wallace | Filter and process for making a filter for dispersing ingredients into effluent |
US5104427A (en) * | 1990-01-25 | 1992-04-14 | Riley Michael D | Process for maximizing effectiveness of active ingredients on a filter substrate for dispersing |
US5107565A (en) * | 1987-05-22 | 1992-04-28 | Whirlpool Corporation | Light system for vacuum cleaner |
US5168599A (en) * | 1989-12-01 | 1992-12-08 | Williams William H | Wet and/or dry vacuum cleaning unit |
US5185903A (en) * | 1990-05-16 | 1993-02-16 | Samsung Electronics Co., Ltd. | Electric vacuum cleaner with an ozonizer |
US5230722A (en) * | 1988-11-29 | 1993-07-27 | Amway Corporation | Vacuum filter |
US5233723A (en) * | 1992-11-12 | 1993-08-10 | Hung Yung Feng | Sterilizing vacuum cleaner |
US5240484A (en) * | 1987-07-21 | 1993-08-31 | Southwest Manufacturers & Distributors, Inc. | Antimicrobial vacuum cleaner bag |
US5342420A (en) * | 1993-11-12 | 1994-08-30 | Home Care Industries, Inc. | Optional deodorant dispenser for vacuum cleaner |
US5467501A (en) * | 1993-01-25 | 1995-11-21 | White Consolidated Industries, Inc. | Vacuum cleaner with illuminated belt view |
US5493754A (en) * | 1994-12-13 | 1996-02-27 | U.S. Products, Inc. | Fabric cleaner with ozone injection |
US5679535A (en) * | 1992-03-05 | 1997-10-21 | University Collge Dublin | Apparatus, kit and method for the collection and determination of environmental antigens |
US5819367A (en) * | 1997-02-25 | 1998-10-13 | Yashima Electric Co., Ltd. | Vacuum cleaner with optical sensor |
US5835840A (en) * | 1995-09-06 | 1998-11-10 | Universal Air Technology | Photocatalytic system for indoor air quality |
US5839155A (en) * | 1996-06-06 | 1998-11-24 | Cfr Corporation | Continuous flow cleaning system with ozone injection |
US5882487A (en) * | 1994-06-17 | 1999-03-16 | British Nuclear Fuels, Plc. | Removing contamination |
US5968455A (en) * | 1998-02-17 | 1999-10-19 | Brickley; James Lawrence | Ultraviolet air sterilization device and mobile unit incorporating sterilization device |
US5987697A (en) * | 1996-09-10 | 1999-11-23 | Kwangju Electronics Co., Ltd. | Vacuum cleaner having a brush lamp |
US6053968A (en) * | 1998-10-14 | 2000-04-25 | Miller; Bob C. | Portable room air purifier |
US6063170A (en) * | 1996-05-20 | 2000-05-16 | Air-A-Medic Corporation | Air filtration system |
US6063171A (en) * | 1998-11-16 | 2000-05-16 | Electrolux Llc | Bactericidal vacuum cleaner filter bag |
US6094767A (en) * | 1996-03-21 | 2000-08-01 | Iimura; Keiji | Cleaning apparatus using photocatalyst |
US6239442B1 (en) * | 1996-03-21 | 2001-05-29 | Keiji Iimura | Cleaning apparatus using ultraviolet rays |
US6242753B1 (en) * | 1997-12-25 | 2001-06-05 | Kabushiki Kaisha Lucent | Portable sterilizing apparatus |
US20010004813A1 (en) * | 1999-05-28 | 2001-06-28 | Hedman David E. | System and method for removing harmful organic substances from an enclosure |
US6343400B1 (en) * | 1996-12-23 | 2002-02-05 | Karl Massholder | Cleaning system using ultraviolet radiation and photoactivatable semiconductor material |
US6363570B2 (en) * | 1997-07-09 | 2002-04-02 | Bissell Homecare, Inc. | Upright extraction cleaning machine with illumination |
US6370453B2 (en) * | 1998-07-31 | 2002-04-09 | Volker Sommer | Service robot for the automatic suction of dust from floor surfaces |
US6434785B1 (en) * | 2000-04-19 | 2002-08-20 | Headwaters Research & Development, Inc | Dual filter wet/dry hand-held vacuum cleaner |
US6493903B1 (en) * | 2001-05-18 | 2002-12-17 | Quest Industries, Inc. | Hand-held vacuum cleaner with headlamp |
US6514356B2 (en) * | 2001-01-12 | 2003-02-04 | Royal Appliance Mfg. Co. | Edge cleaner for vacuum cleaner |
US6524529B1 (en) * | 2000-11-28 | 2003-02-25 | Horton, Iii Isaac B. | Appliances having UV disinfection device and method |
US6572711B2 (en) * | 2000-12-01 | 2003-06-03 | The Hoover Company | Multi-purpose position sensitive floor cleaning device |
US6585827B2 (en) * | 2001-07-30 | 2003-07-01 | Tennant Company | Apparatus and method of use for cleaning a hard floor surface utilizing an aerated cleaning liquid |
US6589323B1 (en) * | 1999-11-19 | 2003-07-08 | Amos Korin | System for cleaning air and method for using same |
US20030192816A1 (en) * | 2002-04-10 | 2003-10-16 | William Opfel | Cleaning system for animal litter and bedding |
US6647204B1 (en) * | 1998-03-18 | 2003-11-11 | Harwil Corporation | Portable steam generating system |
US6664748B2 (en) * | 2001-05-23 | 2003-12-16 | Toshiba Tec Kabushiki Kaisha | Electric vacuum cleaner |
US20040013583A1 (en) * | 2002-07-19 | 2004-01-22 | Aerus Llc | Apparatus and method for a sanitizing air filter |
US20040077407A1 (en) * | 2000-02-23 | 2004-04-22 | Magnus Jandel | Handheld device |
US20040107528A1 (en) * | 2002-08-27 | 2004-06-10 | Leclear Douglas D. | Vacuum system for a vehicle |
US6752627B2 (en) * | 2002-09-13 | 2004-06-22 | Chang Gung University | Light emitting tooth brush having whitening and sterilizing effects |
US6760952B1 (en) * | 2003-06-20 | 2004-07-13 | The Scott Fetzer Company | Vacuum cleaner brushroll |
US20040144417A1 (en) * | 2003-01-16 | 2004-07-29 | Matsushita Electric Industrial Co., Ltd. | Photoelectron generating plate, negative particle generating device and charge removing device and equipment using such device |
US6776824B2 (en) * | 2002-01-11 | 2004-08-17 | Sheree H. Wen | Antiviral and antibacterial filtration module for a vacuum cleaner or other appliance |
US6802879B2 (en) * | 2000-05-03 | 2004-10-12 | Gore Enterprise Holdings, Inc. | Vacuum collection bag and method of operation |
US20040200505A1 (en) * | 2003-03-14 | 2004-10-14 | Taylor Charles E. | Robot vac with retractable power cord |
US20040211444A1 (en) * | 2003-03-14 | 2004-10-28 | Taylor Charles E. | Robot vacuum with particulate detector |
US20040255426A1 (en) * | 2003-06-17 | 2004-12-23 | Davis Ron E. | Upright vacuum cleaner equipped with electrified hose and wand |
US20050000543A1 (en) * | 2003-03-14 | 2005-01-06 | Taylor Charles E. | Robot vacuum with internal mapping system |
US20050010331A1 (en) * | 2003-03-14 | 2005-01-13 | Taylor Charles E. | Robot vacuum with floor type modes |
US20050017681A1 (en) * | 2003-07-17 | 2005-01-27 | Toshiba Tec Kabushiki Kaisha | Rechargeable vacuum cleaner system |
US20050022844A1 (en) * | 2003-07-30 | 2005-02-03 | Tennant Company | Ultraviolet sanitation device |
US20050042147A1 (en) * | 2003-08-21 | 2005-02-24 | Rees Wendy Nan | Package containing a scented and custom treated card |
US6869468B2 (en) * | 2000-02-04 | 2005-03-22 | Vent Master (Europe) Ltd. | Air treatment apparatus |
US20050091785A1 (en) * | 2003-11-01 | 2005-05-05 | Yuen Se K. | Optoelectronic dust collecting machine for killing bacteria and viruses |
US6902397B2 (en) * | 2002-08-01 | 2005-06-07 | Sunstar Americas, Inc. | Enhanced dental hygiene system with direct UVA photoexcitation |
US20050123436A1 (en) * | 2002-04-16 | 2005-06-09 | Cumberland John R. | Method for abatement of allergens, pathogens and volatile organic compounds |
US20050191217A1 (en) * | 2003-10-09 | 2005-09-01 | Selander Raymond K. | Fan-driven air freshener |
US20050209736A1 (en) * | 2002-11-13 | 2005-09-22 | Figla Co., Ltd. | Self-propelled working robot |
US20050249630A1 (en) * | 2004-05-06 | 2005-11-10 | Odumuye Olubunmi A | Ultraviolet air purifier |
US6968587B2 (en) * | 2001-07-20 | 2005-11-29 | Nicholas Gerald Grey | Surface cleaning apparatus |
US6968595B2 (en) * | 2002-05-29 | 2005-11-29 | Samsung Gwangju Electronics Co., Ltd. | Vacuum cleaner with ultraviolet sterilization lamp |
US20060010639A1 (en) * | 2004-07-14 | 2006-01-19 | Yuen Se K | Electro-optical vacuum cleaner |
US20060020369A1 (en) * | 2004-03-11 | 2006-01-26 | Taylor Charles E | Robot vacuum cleaner |
US20060057020A1 (en) * | 2002-10-21 | 2006-03-16 | Joseph Tufo | Cleaning of air |
US7013521B2 (en) * | 2001-07-20 | 2006-03-21 | Nicholas Gerald Grey | Surface cleaning apparatus |
US7395579B2 (en) * | 2003-05-21 | 2008-07-08 | Samsung Gwangju Electronics Co. Ltd. | Cyclone dust collecting device and vacuum cleaner having the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3301903B2 (en) * | 1995-10-30 | 2002-07-15 | ボッシュ エレクトロニクス株式会社 | Energy reservoir protection device for vehicle occupant protection device |
JP2003210362A (en) * | 2002-01-21 | 2003-07-29 | Sanyo Electric Co Ltd | Vacuum cleaner |
JP2003325404A (en) * | 2002-05-08 | 2003-11-18 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
JP4263013B2 (en) * | 2002-12-03 | 2009-05-13 | 株式会社東芝 | Electric vacuum cleaner |
-
2005
- 2005-09-23 US US11/234,534 patent/US7530140B2/en not_active Expired - Fee Related
-
2006
- 2006-09-21 CA CA002623372A patent/CA2623372A1/en not_active Abandoned
- 2006-09-21 WO PCT/US2006/037031 patent/WO2007038298A2/en active Application Filing
- 2006-09-21 EP EP06815204A patent/EP1937128A4/en not_active Withdrawn
- 2006-09-21 US US12/067,685 patent/US20080263817A1/en not_active Abandoned
- 2006-09-21 CN CNA2006800437430A patent/CN101312676A/en active Pending
Patent Citations (99)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1863883A (en) * | 1928-07-13 | 1932-06-21 | Frank M Schneider | Suction cleaner germ destroying device |
US1783859A (en) * | 1929-01-19 | 1930-12-02 | Regina Corp | Disinfecting attachment for vacuum cleaners |
US2184732A (en) * | 1936-06-11 | 1939-12-26 | Bendix Prod Corp | Vacuum cleaner |
US2242163A (en) * | 1937-03-30 | 1941-05-13 | Dikkers & Bargeboer Nv | Vacuum cleaner and the like apparatus |
US2198568A (en) * | 1937-09-08 | 1940-04-23 | Jr Edward H Yonkers | Suction cleaner |
US2318088A (en) * | 1939-05-15 | 1943-05-04 | P A Geier Co | Suction cleaning apparatus |
US2188428A (en) * | 1939-09-19 | 1940-01-30 | Maud E Evans | Auxiliary bag for vacuum cleaners |
US2297933A (en) * | 1940-04-22 | 1942-10-06 | Jr Edward H Yonkers | Suction cleaner |
US2296234A (en) * | 1940-07-05 | 1942-09-15 | Apex Electrical Mfg Co | Suction cleaner |
US2611679A (en) * | 1944-05-19 | 1952-09-23 | Whyatt H Haulenbeek | Air treatment device |
US2590152A (en) * | 1945-01-16 | 1952-03-25 | John T Kilbride | Vacuum cleaner with sterilizing means |
US2632912A (en) * | 1948-10-29 | 1953-03-31 | Hoover Co | Illuminating means for tank type suction cleaners |
US2648396A (en) * | 1949-02-03 | 1953-08-11 | James B Kirby | Vacuum cleaner |
US3667454A (en) * | 1970-06-12 | 1972-06-06 | Larry W Prince | Toothbrush with ultraviolet emitter |
US3798704A (en) * | 1971-02-26 | 1974-03-26 | Electrolux Ab | Self-acting combination rug and floor vacuum cleaner nozzle |
US3989184A (en) * | 1973-06-26 | 1976-11-02 | Hartmut Albishausen | Apparatus for collecting and classifying a mixture of solid, gaseous and liquid constituents |
US3975790A (en) * | 1974-10-11 | 1976-08-24 | Lawrence Patterson | Cleaning apparatus having ultraviolet lamp fixture |
US4135269A (en) * | 1977-11-18 | 1979-01-23 | Marston Laurel L | Mop sterilizer and dryer |
US4355436A (en) * | 1981-01-19 | 1982-10-26 | Samuel Hertzberg | Vacuum cleaners |
US4485519A (en) * | 1982-05-24 | 1984-12-04 | Carpet Clinic Ltd. | Ozone cleaning system |
US4498214A (en) * | 1983-02-28 | 1985-02-12 | The Hoover Company | Carpet cleaning apparatus with auxiliary cleaning device arrangement |
US4786812A (en) * | 1986-11-28 | 1988-11-22 | Dora Dicamillo 1988 Trust | Portable germicidal ultraviolet lamp |
US5107565A (en) * | 1987-05-22 | 1992-04-28 | Whirlpool Corporation | Light system for vacuum cleaner |
US5370597A (en) * | 1987-07-21 | 1994-12-06 | Southwest Manufacturers & Distributors, Inc. | Method for manufacturing antimicrobial vacuum cleaner bag |
US5240484A (en) * | 1987-07-21 | 1993-08-31 | Southwest Manufacturers & Distributors, Inc. | Antimicrobial vacuum cleaner bag |
US4907316A (en) * | 1988-02-09 | 1990-03-13 | Interlava Ag | Device for disinfecting rooms and floor coverings |
US5230722A (en) * | 1988-11-29 | 1993-07-27 | Amway Corporation | Vacuum filter |
US5042108A (en) * | 1989-05-23 | 1991-08-27 | Matsushita Electric Industrial Co., Ltd. | Suction pipe for a vacuum cleaner |
US5168599A (en) * | 1989-12-01 | 1992-12-08 | Williams William H | Wet and/or dry vacuum cleaning unit |
US5014387A (en) * | 1989-12-26 | 1991-05-14 | The Scott Fetzer Company | Brush roll mounting |
US5104427A (en) * | 1990-01-25 | 1992-04-14 | Riley Michael D | Process for maximizing effectiveness of active ingredients on a filter substrate for dispersing |
US5074997A (en) * | 1990-01-25 | 1991-12-24 | Riley And Wallace | Filter and process for making a filter for dispersing ingredients into effluent |
US5029359A (en) * | 1990-02-28 | 1991-07-09 | Ortega Louis A | Portable vacuum cleaner exhaust sterilization apparatus |
US5045118A (en) * | 1990-05-04 | 1991-09-03 | Tennant Company | Method of removing debris and dust from a carpet |
US5040264A (en) * | 1990-05-04 | 1991-08-20 | Bryant Roy D | Deodorizing vacuum bag with static protection |
US5185903A (en) * | 1990-05-16 | 1993-02-16 | Samsung Electronics Co., Ltd. | Electric vacuum cleaner with an ozonizer |
US5679535A (en) * | 1992-03-05 | 1997-10-21 | University Collge Dublin | Apparatus, kit and method for the collection and determination of environmental antigens |
US5233723A (en) * | 1992-11-12 | 1993-08-10 | Hung Yung Feng | Sterilizing vacuum cleaner |
US5467501A (en) * | 1993-01-25 | 1995-11-21 | White Consolidated Industries, Inc. | Vacuum cleaner with illuminated belt view |
US5342420A (en) * | 1993-11-12 | 1994-08-30 | Home Care Industries, Inc. | Optional deodorant dispenser for vacuum cleaner |
US5882487A (en) * | 1994-06-17 | 1999-03-16 | British Nuclear Fuels, Plc. | Removing contamination |
US5493754A (en) * | 1994-12-13 | 1996-02-27 | U.S. Products, Inc. | Fabric cleaner with ozone injection |
US5835840A (en) * | 1995-09-06 | 1998-11-10 | Universal Air Technology | Photocatalytic system for indoor air quality |
US6675425B1 (en) * | 1996-03-21 | 2004-01-13 | Keiji Iimura | Photocatalytic apparatus and method for activating photocatalytic material |
US6094767A (en) * | 1996-03-21 | 2000-08-01 | Iimura; Keiji | Cleaning apparatus using photocatalyst |
US6239442B1 (en) * | 1996-03-21 | 2001-05-29 | Keiji Iimura | Cleaning apparatus using ultraviolet rays |
US6063170A (en) * | 1996-05-20 | 2000-05-16 | Air-A-Medic Corporation | Air filtration system |
US5839155A (en) * | 1996-06-06 | 1998-11-24 | Cfr Corporation | Continuous flow cleaning system with ozone injection |
US5987697A (en) * | 1996-09-10 | 1999-11-23 | Kwangju Electronics Co., Ltd. | Vacuum cleaner having a brush lamp |
US6343400B1 (en) * | 1996-12-23 | 2002-02-05 | Karl Massholder | Cleaning system using ultraviolet radiation and photoactivatable semiconductor material |
US5819367A (en) * | 1997-02-25 | 1998-10-13 | Yashima Electric Co., Ltd. | Vacuum cleaner with optical sensor |
US6363570B2 (en) * | 1997-07-09 | 2002-04-02 | Bissell Homecare, Inc. | Upright extraction cleaning machine with illumination |
US6242753B1 (en) * | 1997-12-25 | 2001-06-05 | Kabushiki Kaisha Lucent | Portable sterilizing apparatus |
US5968455A (en) * | 1998-02-17 | 1999-10-19 | Brickley; James Lawrence | Ultraviolet air sterilization device and mobile unit incorporating sterilization device |
US6647204B1 (en) * | 1998-03-18 | 2003-11-11 | Harwil Corporation | Portable steam generating system |
US6370453B2 (en) * | 1998-07-31 | 2002-04-09 | Volker Sommer | Service robot for the automatic suction of dust from floor surfaces |
US6053968A (en) * | 1998-10-14 | 2000-04-25 | Miller; Bob C. | Portable room air purifier |
US6063171A (en) * | 1998-11-16 | 2000-05-16 | Electrolux Llc | Bactericidal vacuum cleaner filter bag |
US20010004813A1 (en) * | 1999-05-28 | 2001-06-28 | Hedman David E. | System and method for removing harmful organic substances from an enclosure |
US6589323B1 (en) * | 1999-11-19 | 2003-07-08 | Amos Korin | System for cleaning air and method for using same |
US6869468B2 (en) * | 2000-02-04 | 2005-03-22 | Vent Master (Europe) Ltd. | Air treatment apparatus |
US20040077407A1 (en) * | 2000-02-23 | 2004-04-22 | Magnus Jandel | Handheld device |
US6434785B1 (en) * | 2000-04-19 | 2002-08-20 | Headwaters Research & Development, Inc | Dual filter wet/dry hand-held vacuum cleaner |
US6802879B2 (en) * | 2000-05-03 | 2004-10-12 | Gore Enterprise Holdings, Inc. | Vacuum collection bag and method of operation |
US6524529B1 (en) * | 2000-11-28 | 2003-02-25 | Horton, Iii Isaac B. | Appliances having UV disinfection device and method |
US6572711B2 (en) * | 2000-12-01 | 2003-06-03 | The Hoover Company | Multi-purpose position sensitive floor cleaning device |
US6514356B2 (en) * | 2001-01-12 | 2003-02-04 | Royal Appliance Mfg. Co. | Edge cleaner for vacuum cleaner |
US6493903B1 (en) * | 2001-05-18 | 2002-12-17 | Quest Industries, Inc. | Hand-held vacuum cleaner with headlamp |
US6664748B2 (en) * | 2001-05-23 | 2003-12-16 | Toshiba Tec Kabushiki Kaisha | Electric vacuum cleaner |
US6968587B2 (en) * | 2001-07-20 | 2005-11-29 | Nicholas Gerald Grey | Surface cleaning apparatus |
US7013521B2 (en) * | 2001-07-20 | 2006-03-21 | Nicholas Gerald Grey | Surface cleaning apparatus |
US6585827B2 (en) * | 2001-07-30 | 2003-07-01 | Tennant Company | Apparatus and method of use for cleaning a hard floor surface utilizing an aerated cleaning liquid |
US6776824B2 (en) * | 2002-01-11 | 2004-08-17 | Sheree H. Wen | Antiviral and antibacterial filtration module for a vacuum cleaner or other appliance |
US20030192816A1 (en) * | 2002-04-10 | 2003-10-16 | William Opfel | Cleaning system for animal litter and bedding |
US20050123436A1 (en) * | 2002-04-16 | 2005-06-09 | Cumberland John R. | Method for abatement of allergens, pathogens and volatile organic compounds |
US6968595B2 (en) * | 2002-05-29 | 2005-11-29 | Samsung Gwangju Electronics Co., Ltd. | Vacuum cleaner with ultraviolet sterilization lamp |
US20040013583A1 (en) * | 2002-07-19 | 2004-01-22 | Aerus Llc | Apparatus and method for a sanitizing air filter |
US6902397B2 (en) * | 2002-08-01 | 2005-06-07 | Sunstar Americas, Inc. | Enhanced dental hygiene system with direct UVA photoexcitation |
US20040107528A1 (en) * | 2002-08-27 | 2004-06-10 | Leclear Douglas D. | Vacuum system for a vehicle |
US6752627B2 (en) * | 2002-09-13 | 2004-06-22 | Chang Gung University | Light emitting tooth brush having whitening and sterilizing effects |
US20060057020A1 (en) * | 2002-10-21 | 2006-03-16 | Joseph Tufo | Cleaning of air |
US20050209736A1 (en) * | 2002-11-13 | 2005-09-22 | Figla Co., Ltd. | Self-propelled working robot |
US20040144417A1 (en) * | 2003-01-16 | 2004-07-29 | Matsushita Electric Industrial Co., Ltd. | Photoelectron generating plate, negative particle generating device and charge removing device and equipment using such device |
US20040211444A1 (en) * | 2003-03-14 | 2004-10-28 | Taylor Charles E. | Robot vacuum with particulate detector |
US20040200505A1 (en) * | 2003-03-14 | 2004-10-14 | Taylor Charles E. | Robot vac with retractable power cord |
US20040244138A1 (en) * | 2003-03-14 | 2004-12-09 | Taylor Charles E. | Robot vacuum |
US20050000543A1 (en) * | 2003-03-14 | 2005-01-06 | Taylor Charles E. | Robot vacuum with internal mapping system |
US20050010331A1 (en) * | 2003-03-14 | 2005-01-13 | Taylor Charles E. | Robot vacuum with floor type modes |
US7395579B2 (en) * | 2003-05-21 | 2008-07-08 | Samsung Gwangju Electronics Co. Ltd. | Cyclone dust collecting device and vacuum cleaner having the same |
US20040255426A1 (en) * | 2003-06-17 | 2004-12-23 | Davis Ron E. | Upright vacuum cleaner equipped with electrified hose and wand |
US6760952B1 (en) * | 2003-06-20 | 2004-07-13 | The Scott Fetzer Company | Vacuum cleaner brushroll |
US20050017681A1 (en) * | 2003-07-17 | 2005-01-27 | Toshiba Tec Kabushiki Kaisha | Rechargeable vacuum cleaner system |
US20050022844A1 (en) * | 2003-07-30 | 2005-02-03 | Tennant Company | Ultraviolet sanitation device |
US20050042147A1 (en) * | 2003-08-21 | 2005-02-24 | Rees Wendy Nan | Package containing a scented and custom treated card |
US20050191217A1 (en) * | 2003-10-09 | 2005-09-01 | Selander Raymond K. | Fan-driven air freshener |
US20050091785A1 (en) * | 2003-11-01 | 2005-05-05 | Yuen Se K. | Optoelectronic dust collecting machine for killing bacteria and viruses |
US20060020369A1 (en) * | 2004-03-11 | 2006-01-26 | Taylor Charles E | Robot vacuum cleaner |
US20050249630A1 (en) * | 2004-05-06 | 2005-11-10 | Odumuye Olubunmi A | Ultraviolet air purifier |
US20060010639A1 (en) * | 2004-07-14 | 2006-01-19 | Yuen Se K | Electro-optical vacuum cleaner |
Cited By (5)
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---|---|---|---|---|
US20070294856A1 (en) * | 2006-06-27 | 2007-12-27 | Park Sang J | Dust collecting unit of vacuum cleaner |
US7815703B2 (en) * | 2006-06-27 | 2010-10-19 | Lg Electronics Inc. | Dust collecting unit of vacuum cleaner |
US20110258806A1 (en) * | 2010-04-21 | 2011-10-27 | Wei-Teh Ho | Vacuum cleaner |
US20130133155A1 (en) * | 2011-11-28 | 2013-05-30 | Julio C. Perez | Vacuum cleaner incorporating noise suppression system |
WO2020219821A3 (en) * | 2019-04-24 | 2020-12-10 | Rifkin Andrew B | Compact ultraviolet light source apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1937128A4 (en) | 2009-12-30 |
WO2007038298A2 (en) | 2007-04-05 |
EP1937128A2 (en) | 2008-07-02 |
CA2623372A1 (en) | 2007-04-05 |
US7530140B2 (en) | 2009-05-12 |
WO2007038298A3 (en) | 2007-05-31 |
CN101312676A (en) | 2008-11-26 |
US20070067943A1 (en) | 2007-03-29 |
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