USRE33564E - Foam dispensing device - Google Patents
Foam dispensing device Download PDFInfo
- Publication number
- USRE33564E USRE33564E US06/812,672 US81267285A USRE33564E US RE33564 E USRE33564 E US RE33564E US 81267285 A US81267285 A US 81267285A US RE33564 E USRE33564 E US RE33564E
- Authority
- US
- United States
- Prior art keywords
- foam
- foamable liquid
- small
- iaddend
- iadd
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K5/00—Holders or dispensers for soap, toothpaste, or the like
- A47K5/14—Foam or lather making devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
- B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
- B05B7/0031—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
- B05B7/0037—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
Definitions
- This invention relates generally to foam dispensing devices and particularly to a device having an outer container and a relatively small auxiliary inner container filled from the outer container and requiring a smaller air supply to operate.
- This foam dispenser device provides a means of utilizing foam producing systems, currently limited to use with smaller containers, for use with containers of much greater capacity.
- This foam dispensing device provides a means of using large capacity containers for the production of superior foam by utilizing an inner auxiliary container which is replenished with a foamable liquid supply from the larger container.
- the foam dispenser includes an outer container for holding foamable liquid having a discharge port, and a foam producing unit mounted to the container and separating the area adjacent the discharge port and the interior of the container.
- the foam producing unit includes an inner container disposed within the outer container and having an opening communicating with said outer container; a closure for the inner container having pressurized air inlet means and foam outlet means, foam producing means communicating with the foam outlet means and including an inwardly extending conduit having an opening communicating with the interior of the inner container; and the valve means for the inner container opening, said valve means selectively closing said opening when air pressure within the inner container is increased to supply foamable liquid from the inner container to the conduit of the foam producing means, and said valve means selectively opening said opening when air pressure within the inner container is decreased to permit flow of foamable liquid from the outer container to the inner container.
- FIG. 1 is a longitudinal sectional view of the device
- FIG. 2 is a sectional plan view taken on line 2--2 of FIG. 1;
- FIG. 3 is a sectional plan view taken on line 3--3 of FIG. 1, and
- FIG. 4 is an enlarged view illustrating the valve action.
- the foam dispensing device generally indicated by numeral 10, includes an outer container 12 having a neck portion 14 defining a discharge port.
- the device also includes a foam producing unit 16 mounted within the neck of the container 12 and separating the area adjacent the discharge port and the interior of the container.
- the container 12 provides a reservoir for foamable liquid generally indicated by L and may be formed from any suitable rigid or non-rigid material such as metal or plastic.
- the foam producing unit 16 includes a tubular member 18, of rigid plastic or the like providing an auxiliary inner container disposed within the outer container 12 and a closure cap 20.
- the closure cap 20 includes a base portion 22, a depending annular ring 24 and an outwardly projecting portion 26.
- the closure cap 20 also includes a passage 28 extending therethrough and providing a pressurized air inlet means into the tubular member 18 and a passage 30 extending therethrough and providing a foam outlet means from the tubular member 18.
- pressurized air is supplied to the air inlet passage 28, as by a bulb 32 connected to the passage 28 by a connecting tubular member 34.
- the bulb 32 includes a one-way valve such as provided by the diaphragm 36 covering the bulb air inlet passage 38.
- pressurized air producing means such as a foot pump, could be used in place of a bulb.
- the foam inlet passage 30 is fitted at its upper end with a tubular member 40 which, in effect, provides an extension to said foam outlet passage. As shown, the passage 30 also provides a mounting for a foam producing means generally indicated by numeral 42, which communicates with the tubular member 40.
- the foam producing means 42 in the embodiment shown, is similar to that disclosed in U.S. Pat. No. 3,709,437 in that it includes a downwardly depending hollow element 44 having air passages 46 disposed thereabout, and providing a foam producing mixing chamber.
- An elongate tubular member 48 providing an inwardly extending conduit means, is attached to the hollow element 44 and communicates with said element at its upper end.
- the tubular member 48 also includes an opening 50 at its lower end.
- the air passages 46 provide for the introduction of air into the mixing chamber formed by member 44 at the same time that foamable liquid is introduced into said mixing chamber by the tubular member 48.
- the cross section of the air passage 46 is such that free flow of air therethrough is restricted causing air pressure acting upon the upper surface of the foamable liquid to force the foamable liquid upwardly through the tubular member 48 and into the mixing chamber. Simultaneous introduction of air and foamable liquid affects the intermixing of liquid and air to produce foam.
- a ball check valve 52 is provided for the mixing chamber which seats with a reduced portion of the hollow element 44 to prevent the return of foam into the tubular member 48.
- Passage 30 is configured to provide a seat for a beam homogenizing overlay element 54 which is held in place by means of a retainer 56. It will be understood that other foam producing means could be used if desired such as the disclosed in U.S. Pat. No. 3,397,364.
- the tubular member 18, in the embodiment shown, is integrally formed with the closure cap 20.
- An inner cap 62 providing an inner end wall is also provided, said cap 62 having an end opening 64 therein communicating with the outer container 12.
- One-way valve means in the form of a flexible element 66 of rubber or the like, is provided for the opening 64 and is held in place by the end cap 62.
- the valve means is selectively closed, as shown in FIG. 1, when air pressure within the inner container 60 is increased by applying pressure to the bulb 32, so that the flexible element 66 is urged against the opening 64 and air pressure forces liquid L down the tubular member 18 to L', with the result that foamable liquid L is supplied, by way of the tubular member 48, to the foam producing means 42.
- valve means When the air pressure is relieved, the valve means is selectively opened, as shown in FIG. 4, by lifting flexible element 66 away from the opening 64 to permit flow of the foamable liquid from the outer container 12 to the inner container 18.
- a ball valve or other form of one-way valve could be used in lieu of the flexible element 66.
- the flexible element 66 is opened to admit liquid into the inner container by virtue of the pressure differential resulting from the difference in liquid levels between the inner and outer containers.
- the foam producing unit 16 is fully installed and the liquid levels are equal and foam is produced by simply applying pressure to the surface of the liquid L in the inner container tending to lower the level in said container to the point indicated by L'. Release pressure again causes liquid L to enter the inner container, such entry being assisted by the relative negative pressure inside the container 18 resulting from the release of the bulb 32.
- valved inner container of a substantially smaller volume than that of the other container provides the advantage that a large container can produce foam effectively with the application of air pressure to a relatively small auxiliary container which requires less air to produce the necessary pressure to form the foam thereby permitting rapid foaming action with a relatively small air pressure actuating means.
- Good results have been obtained using an outer container and inner container having cross-sectional areas proportions of between fifty-to-one (50:1) and one hundred-to-one (100:1) based on an inner container diameter of one inch (1").
Abstract
Description
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/812,672 USRE33564E (en) | 1981-12-14 | 1985-12-23 | Foam dispensing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33025481A | 1981-12-14 | 1981-12-14 | |
US06/812,672 USRE33564E (en) | 1981-12-14 | 1985-12-23 | Foam dispensing device |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US33025481A Continuation | 1981-12-14 | 1981-12-14 | |
US06/614,704 Reissue US4531660A (en) | 1981-12-14 | 1984-05-29 | Foam dispensing device |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE33564E true USRE33564E (en) | 1991-04-02 |
Family
ID=26987192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/812,672 Expired - Lifetime USRE33564E (en) | 1981-12-14 | 1985-12-23 | Foam dispensing device |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE33564E (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994004437A1 (en) * | 1992-08-24 | 1994-03-03 | Omnific International Ltd. | Aerosol container |
WO1994009345A1 (en) * | 1992-10-19 | 1994-04-28 | Ballard Medical Products | Disposable tray sump foamer, assembly and methods |
US5348198A (en) * | 1992-08-24 | 1994-09-20 | Omnific International Ltd. | Refillable aerosol container |
US5411177A (en) * | 1991-09-20 | 1995-05-02 | Jack W. Kaufman | Foam dispensing apparatus |
US5725129A (en) * | 1995-06-06 | 1998-03-10 | American Sterilizer Company | Dual-container foam dispenser |
US6367663B1 (en) | 1999-06-22 | 2002-04-09 | Chapin Manufacturing, Inc. | Hand-operated foaming apparatus with interchangeable nozzle |
US6371332B1 (en) * | 1999-07-13 | 2002-04-16 | Albert H. Fox | Apparatus for producing foam from liquid mixture |
US6651908B1 (en) | 2001-07-12 | 2003-11-25 | Richway Industries, Ltd. | Foam marking device for yards |
WO2004035460A1 (en) * | 2002-10-18 | 2004-04-29 | Airspray N.V. | Method and device for forming a foam-head on a beverage |
US20060201973A1 (en) * | 2005-03-08 | 2006-09-14 | Ecolab Inc. | Foot activated dispenser |
CN103158947A (en) * | 2011-12-13 | 2013-06-19 | 北京红海科技开发有限公司 | Apparatus capable of quantificationally taking out objects contained in container |
US20140069960A1 (en) * | 2011-05-06 | 2014-03-13 | Chantal Chaussard | Foam or mousse-producing device |
US8844742B2 (en) * | 2012-01-10 | 2014-09-30 | Thermos K.K. | Beverage container |
USD725966S1 (en) | 2013-05-20 | 2015-04-07 | Thermos L.L.C. | Combined drink bottle and lid |
US20170216857A1 (en) * | 2014-08-05 | 2017-08-03 | Goizper, S.Coop. | Spray for cleaning products |
US9724629B2 (en) | 2013-05-20 | 2017-08-08 | Thermos L.L.C. | Bottle system and method for filtering or treating a beverage |
NL2025705B1 (en) * | 2020-05-29 | 2022-01-13 | Unifortes B V | Foam dispenser |
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US296435A (en) * | 1884-04-08 | mubdook | ||
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GB209724A (en) * | 1923-01-11 | 1925-03-27 | Stewart Warner Speedometer | Improvements in or relating to fuel feeding apparatus for internal combustion engines |
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US2103687A (en) * | 1936-07-09 | 1937-12-28 | Maurice L Mckenney | Liquid dispensing device |
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US2154393A (en) * | 1935-07-03 | 1939-04-11 | Continental Say When Corp | Dispensing apparatus for beverages |
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US2812716A (en) * | 1952-12-04 | 1957-11-12 | Donald E Gray | Pumping device |
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CA669247A (en) * | 1963-08-27 | The Drackett Company | Liquid dispenser | |
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US5411177A (en) * | 1991-09-20 | 1995-05-02 | Jack W. Kaufman | Foam dispensing apparatus |
WO1994004437A1 (en) * | 1992-08-24 | 1994-03-03 | Omnific International Ltd. | Aerosol container |
US5348198A (en) * | 1992-08-24 | 1994-09-20 | Omnific International Ltd. | Refillable aerosol container |
WO1994009345A1 (en) * | 1992-10-19 | 1994-04-28 | Ballard Medical Products | Disposable tray sump foamer, assembly and methods |
US5339988A (en) * | 1992-10-19 | 1994-08-23 | Ballard Medical Products | Disposable tray sump foamer, assembly and methods |
US5372281A (en) * | 1992-10-19 | 1994-12-13 | Ballard Medical Products | Disposable tray sump foamer, assembly and methods |
US5452823A (en) * | 1992-10-19 | 1995-09-26 | Ballard Medical Products | Disposable tray sump foamer, assembly and methods |
US5725129A (en) * | 1995-06-06 | 1998-03-10 | American Sterilizer Company | Dual-container foam dispenser |
US6367663B1 (en) | 1999-06-22 | 2002-04-09 | Chapin Manufacturing, Inc. | Hand-operated foaming apparatus with interchangeable nozzle |
US6371332B1 (en) * | 1999-07-13 | 2002-04-16 | Albert H. Fox | Apparatus for producing foam from liquid mixture |
US6651908B1 (en) | 2001-07-12 | 2003-11-25 | Richway Industries, Ltd. | Foam marking device for yards |
US20060107840A1 (en) * | 2002-10-18 | 2006-05-25 | Airspray N.V. | Method and device for forming a foam-head on a beverage |
WO2004035460A1 (en) * | 2002-10-18 | 2004-04-29 | Airspray N.V. | Method and device for forming a foam-head on a beverage |
US20060201973A1 (en) * | 2005-03-08 | 2006-09-14 | Ecolab Inc. | Foot activated dispenser |
US7299951B2 (en) | 2005-03-08 | 2007-11-27 | Ecolab Inc. | Foot activated dispenser |
US7753235B2 (en) | 2005-03-08 | 2010-07-13 | Ecolab Inc. | Foot activated dispenser |
US20140069960A1 (en) * | 2011-05-06 | 2014-03-13 | Chantal Chaussard | Foam or mousse-producing device |
CN103158947A (en) * | 2011-12-13 | 2013-06-19 | 北京红海科技开发有限公司 | Apparatus capable of quantificationally taking out objects contained in container |
US8844742B2 (en) * | 2012-01-10 | 2014-09-30 | Thermos K.K. | Beverage container |
USD725966S1 (en) | 2013-05-20 | 2015-04-07 | Thermos L.L.C. | Combined drink bottle and lid |
US9724629B2 (en) | 2013-05-20 | 2017-08-08 | Thermos L.L.C. | Bottle system and method for filtering or treating a beverage |
US20170216857A1 (en) * | 2014-08-05 | 2017-08-03 | Goizper, S.Coop. | Spray for cleaning products |
US10226779B2 (en) * | 2014-08-05 | 2019-03-12 | Goizper, S.Coop. | Spray for cleaning products |
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