EP0000093A1 - A pump dispenser for a vacuum bottle - Google Patents
A pump dispenser for a vacuum bottle Download PDFInfo
- Publication number
- EP0000093A1 EP0000093A1 EP78300022A EP78300022A EP0000093A1 EP 0000093 A1 EP0000093 A1 EP 0000093A1 EP 78300022 A EP78300022 A EP 78300022A EP 78300022 A EP78300022 A EP 78300022A EP 0000093 A1 EP0000093 A1 EP 0000093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- disk
- pump
- housing
- air
- 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.)
- Granted
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/0005—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper
- A47J41/0027—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper
- A47J41/0033—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper comprising a pumping system
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
- B67D1/0412—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container
- B67D1/0425—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container comprising an air pump system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
- G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
- G01F11/025—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons
- G01F11/028—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons the dosing device being provided with a dip tube and fitted to a container, e.g. to a bottleneck
Definitions
- thermos bottles relate to the field of vacuum insulated containers of the type commonly referred to as thermos bottles. More specifically, it relates to an improvement in thermos bottle con- struction whereby the need to remove a cap to dispense the liquid therefrom is avoided. Since the purpose of a thermos bottle is to maintain its contents at a desired serving temperature, either hot in the case of coffee and the like or cold in the case of soft drinks, it is desirable to maintain the integrity of the vacuum unit to prevent hear transfer.
- thermos bottle designs whether wide mouth or narrow mouth in construction, usually require that a cap be removed and the bottle be tipped to some degree to pour the contents from the bottle. During this dispensing operation the insulating properties of the bottle are impaired.
- Another disadvantage of prior designs is that during pouring it is easy to spill the contents and if the liquid is hot, burns can result.
- the invention provides-an improved vacuum bottle design which avoids the necessity for pouring liquids therefrom and which maintains the integrity of the temperature insulating bottle.
- Pump units for vacuum bottles have been developed by others. These devices are highly complex employing a great number of components and being relatively more expensive to manufacture than the present invention.
- the present invention achieves its simplicity through the use of a user controlled air intake and an efficient design whereby many of the components serves more than one function in the overall design.
- a container having..a vacuum insulating filler, an outer protective jacket and a pouring opening through which liquids pass into and out of the interior of the container and a pump dispenser for said container adapted to removably engage the outer jacket of said container and seal the pouring opening to prevent heat loss and spilling, said dispenser including: means for pumping air into the container interior, means for preventing liquid in the container from entering said pumping means, and means for permitting liquid to pass out of the container when air pressure is increased in the container by the action of said pumping means.
- the vacuum bottle for the purpose of the present application, includes an outer jacket 10,-a vacuum filler.12, a bottom cap 14 and a filler spacer 16 which positions the filler 12 in the jacket and protects the glass nipple through which air is withdrawn from the interior of the filler.
- the filler is shown as being a narrow neck bottle, that is, one which tapers at its top to form a convenient pouring neck.
- the pump dispenser according. to the invention is also capable of being used with wide mouth bottles. 'A wide mouth bottle does not have the taper and, accordingly, the pump dispenser would have a dimensional change to correspond to the opening of the wide mouth filler.
- the pump 18, includes a dispensing spout 20, a spout channel 22 and a fluid tube 24 which extends downwardly into the interior of the thermos bottle. In response to air being forced into the interior of the thermos from the pump, fluid passes upwardly through the tube 24 into the channel 22 and out of spout 20.
- Air is forced into the interior of the thermos by the manually operable pump portion of the unit which includes a disk 26, a flexible sealing member or pump diaphragm 28 and a return spring 30.
- the disk 26 has an air port 32 located at its center for permitting the passage of air to an interior space 34 which is enclosed in part by the pump diaphragm 28.
- the disk is retained in the position shown in Figure 2 by the inwardly directed flange 35 of a pump housing 36.
- the disk 26 and diaphragm . 28 can, however, move vertically downward against the bias of a spring 30 to effect the pumping action to be described.
- the spring 30 urges the disk and diaphragm back to their initial positions when manual pressure on the disk is removed.
- the diaphragm 28 which has its outer end 29 secured between an upper portion 11 of the jacket 10 and a downwardly depending portion 37 of the housing 36, effectively seals the upper portion of interior space 34 to make it airtight except for opening 32 in the disk.
- the inner surface of the diaphragm 28 is secured to the disk by any suitable bonding technique.
- the lower portion of the space 34 is enclosed by a wall 39, a conical section 38, bottom 41, and a center post 40.
- the upper portion of the center post 40 provides a means for mounting the helical spring 30.
- Bottom portion 41 is provided with a number of openings 42 to permit the passage of air from the interior space 34 into the filler 12 in order to increase the air pressure on the surface of the liquid during pumping.
- a gasket 44 encompasses the conical section 38 and bottom 41 of the pump housing. When the pump is secured over the filler 12 the gasket engages the top of the filler 12 to provide a fluid seal between the filler top and the conical section 38.
- the central portion of the gasket has an aperture therethrough to permit the fluid tube 24 to pass downwardly into the bottle interior.
- the gasket is retained in close proximity to the junction of the housing and the fluid tube. This securely covers the openings 42 to prevent the passage of liquid upwardly from the thermos into the interior space 34 ( Figure 4).
- the lower portion of the gasket flexes away from the housing and fluid tube, as indicated in Figure 5, due to the air pressure generated by the pump unit. This permits the air to pass through the openings 42 and around the gasket end 50 into the interior of the thermos.
- the gasket Upon completion of the pumping operation the gasket returns to its Figure 4 position to again seal the pumping unit.
- the unit is secured to a thermos or other container for liquids by securing it-to the top in the manner illustrated in Figures 1 and 3.
- the index finger or thumb of the user is placed over the opening 32 of the disk 26 thereby sealing the pump interior 34.
- the user then applies downward pressure to the disk while maintaining the seal thereby forcing the air contained in the interior space 34 downwardly through the openings 42 into the interior of the vacuum bottle.
- This air pres-. sure acts in a well understood manner to force the fluid in the container up the fluid tube 24 through the channel 22 and out the spout 20 to a cup or glass, as desired.
- the gasket 44 alternately seals and unseals the openings 42 to prevent back flow of liquid while permitting entry of air to the container.
- FIG. 9 and 10 a sealing arrangement according to a second embodiment of the invention is illustrated.
- the gasket illustrated in Figures 9 and 10 is not in physical contact with the fluid tube 24. Instead, it is spaced slightly therefrom by virtue of having a slightly larger diameter aperture 71.
- the following dimensions are exemplary of the type of relationship between the outside diameter of the fluid tube and the diameter of the aperture through the bottom of the gasket:
- a gasket 70 is provided with a relatively thick tapering wall 72 aid a relatively thin bottom wall 74.
- the opening 71 through the bottom of the gasket is defined by a circular bead 78 of increased dimension as compared to the bottom wall 74.
- bead 78 is intended to normally maintain contact with the bottom portion 41 of the housing.
- the holes 42 through the bottom portion 41 are located on the side of bead 78 opposite the tube 24 so that the bead normally provides a sealing relationship to prevent liquid from entering the pump interior through the holes 42.
- the gasket When air is pumped, by operation of the disk and diaphragm, the resulting air pressure causes a slight flexing of bead 78 away from bottom portion 41 permitting air to pass into the vacuum filler to dispense the liquid contained therein.
- the gasket should be formed of a.suitable material which will retain its initial shape so that it will return to the desired sealing position after each flexing away from the bottom of the housing.
- suitable materials are available for this purpose and exemplary thereof is the material sold under the trademark LRATON.
- the underside of gasket bottom 74 may taper upwardly and reduce in thickness (as viewed from the edge) to improve the flexing capability of the bead.
- the angle of taper as measured from the edge, may be on the order of 3°. While this arrangement does not seal the pump unit against liquid as securely as the first embodiment does, it has the advantage of substantially reducing the amount of pressure required to operate the pump unit. This is due to the ease with which the gasket bead can be caused to flex away from the housing bottom 41 as compared to the pressure required to pass air around the gasket illustrated in Figures 4 and 5.
- the pump housing 36 is provided with a plurality of guide ribs 52 spaced around its circumference. The ribs extend vertically substantially the entire length of travel of the disk between the positions illustrated in' Figures 2 and 3.
- the disk 26 is provided with a corresponding set of grooves defined by projections 56 and 58 which mate with the guide ribs 52.
- the pump unit may be provided with an internal thread 60 for engaging a mating thread on the jacket 10 of the thermos bottle.
- the conical section 38 of the pump housing is dimensioned to securely seal on the filler opening so that as the threads are engaged the gasket 44 effects a good seal between the pump unit and the top of.the filler.
- the threads 60 permit the pump housing to.engage the chermos bottle jacket quickly and conveniently to allow the pump unit to be attached to or removed from the thermos bottle for cleaning and refilling purposes.
- this pump unit is designed for use with vacuum bottles or similar insulated containers, such as, foam bottles and the like.
- Figure 8 illustrates the use of a pump unit according to the invention in conjunction with a quart container 64.which may be of the foam type or similar construction.
Abstract
Description
- This invention relates to the field of vacuum insulated containers of the type commonly referred to as thermos bottles. More specifically, it relates to an improvement in thermos bottle con- struction whereby the need to remove a cap to dispense the liquid therefrom is avoided. Since the purpose of a thermos bottle is to maintain its contents at a desired serving temperature, either hot in the case of coffee and the like or cold in the case of soft drinks, it is desirable to maintain the integrity of the vacuum unit to prevent hear transfer.
- Prior thermos bottle designs, whether wide mouth or narrow mouth in construction, usually require that a cap be removed and the bottle be tipped to some degree to pour the contents from the bottle. During this dispensing operation the insulating properties of the bottle are impaired. Another disadvantage of prior designs is that during pouring it is easy to spill the contents and if the liquid is hot, burns can result. The invention provides-an improved vacuum bottle design which avoids the necessity for pouring liquids therefrom and which maintains the integrity of the temperature insulating bottle. These objectives are accomplished by the provision of a pump dispenser as part of the vacuum bottle design. The dispenser is mounted on the top of the bottle in place of a cap and permits the dispensing of liquids from the heat insulating interior in response to manual pumping.
- Pump units for vacuum bottles have been developed by others. These devices are highly complex employing a great number of components and being relatively more expensive to manufacture than the present invention. The present invention achieves its simplicity through the use of a user controlled air intake and an efficient design whereby many of the components serves more than one function in the overall design.
- According to one aspect of the present invention there is provided a container having..a vacuum insulating filler, an outer protective jacket and a pouring opening through which liquids pass into and out of the interior of the container and a pump dispenser for said container adapted to removably engage the outer jacket of said container and seal the pouring opening to prevent heat loss and spilling, said dispenser including: means for pumping air into the container interior, means for preventing liquid in the container from entering said pumping means, and means for permitting liquid to pass out of the container when air pressure is increased in the container by the action of said pumping means.
- Embodiments of the invention will now be described by way of example with reference to the accompanying drawings in which:-
- Figure 1 is a perspective view of a thermos bottle and pump dispenser according to the invention.
- Figure 2 is a cross sectional view of the pump dispenser according to the invention.
- Figure 3 is a cross sectional view of the pump dispenser and thermos bottle shoeing the dispenser in its actuated position.
- Figures 4 and 5 are enlarged sectional views of the lower portion of the pump dispenser illustrating operation of the gasket seal.
- Figure 6 is a sectional view along the lines 6-6 of Figure 2.
- Figure.7 is a sectional view along the lines 7-7 of Figure 6.
- Figure 8 illustrates the use of a pump unit according to the present invention on a nonvacuum insulated container of a larger size than the thermos bottle of Figure 1.
- Figure 9 is a view similar to Figure 2 illustrating the use of a gasket according to a second embodiment of the invention.
- Figure 10 is a sectional view similar to Figures 4 and 5 illustrating the operation of the gasket according to the second embodiment.
- Referring to Figures 1, 2 and 3, the vacuum bottle and dispenser according to the invention are illustrated. The vacuum bottle, for the purpose of the present application, includes an
outer jacket 10,-a vacuum filler.12, abottom cap 14 and afiller spacer 16 which positions thefiller 12 in the jacket and protects the glass nipple through which air is withdrawn from the interior of the filler. In the embodiment illustrated in Figure 3 the filler is shown as being a narrow neck bottle, that is, one which tapers at its top to form a convenient pouring neck. As will be indicated, the pump dispenser according. to the invention is also capable of being used with wide mouth bottles. 'A wide mouth bottle does not have the taper and, accordingly, the pump dispenser would have a dimensional change to correspond to the opening of the wide mouth filler. - The
pump 18, according to the invention, includes a dispensingspout 20, aspout channel 22 and afluid tube 24 which extends downwardly into the interior of the thermos bottle. In response to air being forced into the interior of the thermos from the pump, fluid passes upwardly through thetube 24 into thechannel 22 and out ofspout 20. - Air is forced into the interior of the thermos by the manually operable pump portion of the unit which includes a
disk 26, a flexible sealing member orpump diaphragm 28 and areturn spring 30. Thedisk 26 has anair port 32 located at its center for permitting the passage of air to aninterior space 34 which is enclosed in part by thepump diaphragm 28. The disk.is retained in the position shown in Figure 2 by the inwardly directedflange 35 of apump housing 36. Thedisk 26 and diaphragm . 28 can, however, move vertically downward against the bias of aspring 30 to effect the pumping action to be described. Thespring 30 urges the disk and diaphragm back to their initial positions when manual pressure on the disk is removed. Thediaphragm 28, which has itsouter end 29 secured between anupper portion 11 of thejacket 10 and a downwardly dependingportion 37 of thehousing 36, effectively seals the upper portion ofinterior space 34 to make it airtight except for opening 32 in the disk. The inner surface of thediaphragm 28 is secured to the disk by any suitable bonding technique. - The lower portion of the
space 34 is enclosed by awall 39, aconical section 38,bottom 41, and acenter post 40. The upper portion of thecenter post 40 provides a means for mounting thehelical spring 30.Bottom portion 41 is provided with a number ofopenings 42 to permit the passage of air from theinterior space 34 into thefiller 12 in order to increase the air pressure on the surface of the liquid during pumping. - The number and size of the
openings 42 depends upon the size'of the pump unit and can be empirically determined for any given construction. In order to prevent liquid from entering theinterior space 34 should the thermos be turned on its side or upside down agasket 44 according to a first embodiment encompasses theconical section 38 andbottom 41 of the pump housing. When the pump is secured over thefiller 12 the gasket engages the top of thefiller 12 to provide a fluid seal between the filler top and theconical section 38. - As best illustrated in Figures 4 and 5, the central portion of the gasket has an aperture therethrough to permit the
fluid tube 24 to pass downwardly into the bottle interior. When the pump is not being operated the gasket is retained in close proximity to the junction of the housing and the fluid tube. This securely covers theopenings 42 to prevent the passage of liquid upwardly from the thermos into the interior space 34 (Figure 4). When the pump dispenser is-operated, however, the lower portion of the gasket flexes away from the housing and fluid tube, as indicated in Figure 5, due to the air pressure generated by the pump unit. This permits the air to pass through theopenings 42 and around thegasket end 50 into the interior of the thermos. Upon completion of the pumping operation the gasket returns to its Figure 4 position to again seal the pumping unit. - Operation of the pump unit as thus far described is as follows. The unit is secured to a thermos or other container for liquids by securing it-to the top in the manner illustrated in Figures 1 and 3. When it is desired to dispense fluid from the interior without the need for pouring or opening the container the index finger or thumb of the user is placed over the
opening 32 of thedisk 26 thereby sealing thepump interior 34. The user then applies downward pressure to the disk while maintaining the seal thereby forcing the air contained in theinterior space 34 downwardly through theopenings 42 into the interior of the vacuum bottle. This air pres-. sure acts in a well understood manner to force the fluid in the container up thefluid tube 24 through thechannel 22 and out thespout 20 to a cup or glass, as desired. During pumping thegasket 44 alternately seals and unseals theopenings 42 to prevent back flow of liquid while permitting entry of air to the container. - At the bottom of its travel the
pump disk 26 is released by the user and theair port 32 is unblocked. This permits thereturn spring 30 to return the disk and the attacheddiaphragm 28 back to the initial position illustrated in Figure 2. - This also fills the
interior 34 with air in preparation for the next pumping stroke. - Referring to Figures 9 and 10, _ a sealing arrangement according to a second embodiment of the invention is illustrated. Unlike the Figure 1 embodiment, the gasket illustrated in Figures 9 and 10 is not in physical contact with the
fluid tube 24. Instead, it is spaced slightly therefrom by virtue of having a slightlylarger diameter aperture 71. The following dimensions are exemplary of the type of relationship between the outside diameter of the fluid tube and the diameter of the aperture through the bottom of the gasket: - tube diameter - 9.4mm (0.37 inches) gasket aperture -10.2mm (0.40 inches)
- A
gasket 70, according to the second embodiment, is provided with a relatively thick taperingwall 72 aid a relativelythin bottom wall 74. Theopening 71 through the bottom of the gasket is defined by acircular bead 78 of increased dimension as compared to thebottom wall 74. As illustrated in Figures 9 and 10,bead 78 is intended to normally maintain contact with thebottom portion 41 of the housing. Theholes 42 through thebottom portion 41 are located on the side ofbead 78 opposite thetube 24 so that the bead normally provides a sealing relationship to prevent liquid from entering the pump interior through theholes 42. - When air is pumped, by operation of the disk and diaphragm, the resulting air pressure causes a slight flexing of
bead 78 away frombottom portion 41 permitting air to pass into the vacuum filler to dispense the liquid contained therein. As will be apparent, in order to operate properly, the gasket should be formed of a.suitable material which will retain its initial shape so that it will return to the desired sealing position after each flexing away from the bottom of the housing. Many suitable materials are available for this purpose and exemplary thereof is the material sold under the trademark LRATON. As indicated in Figure 10, the underside of gasket bottom 74 may taper upwardly and reduce in thickness (as viewed from the edge) to improve the flexing capability of the bead. The angle of taper, as measured from the edge, may be on the order of 3°. While this arrangement does not seal the pump unit against liquid as securely as the first embodiment does, it has the advantage of substantially reducing the amount of pressure required to operate the pump unit. This is due to the ease with which the gasket bead can be caused to flex away from the housing bottom 41 as compared to the pressure required to pass air around the gasket illustrated in Figures 4 and 5. - Referring now to Figures 6 and 7, an important feature of the present invention is illustrated. During the manual pumping operation there is a tendency for the
pump disk 26 to wobble, twist or otherwise become angularly disoriented from its intended position. This does have a material effect on the pumping operation in that it increases the difficulty of operation and may cause the unit to jam. It is, therefore, desirable that the disk stay essentially perpendicular to the fluid tube during its movement between the Figure 2 and Figure 3 positions. In order to prevent this undesirable movement of thedisk 26,. thepump housing 36 is provided with a plurality ofguide ribs 52 spaced around its circumference. The ribs extend vertically substantially the entire length of travel of the disk between the positions illustrated in' Figures 2 and 3. Thedisk 26 is provided with a corresponding set of grooves defined byprojections guide ribs 52. Thus, as the disk moves vertically, twisting movement of the disk is prevented by the projections tracking along the vertical length of the guide ribs. Large angular displacement of the disk is also generally avoided by employing these ribs since this problem is in part caused by the twisting movement of the disk. Thus, the guide rib and groove arrangement provides a smoother and more efficient pumping operation than would otherwise be obtained. - As indicated in Figures 2 and 3, the pump unit may be provided with an
internal thread 60 for engaging a mating thread on thejacket 10 of the thermos bottle. Theconical section 38 of the pump housing is dimensioned to securely seal on the filler opening so that as the threads are engaged thegasket 44 effects a good seal between the pump unit and the top of.the filler. Thethreads 60 permit the pump housing to.engage the chermos bottle jacket quickly and conveniently to allow the pump unit to be attached to or removed from the thermos bottle for cleaning and refilling purposes. - As mentioned earlier, this pump unit is designed for use with vacuum bottles or similar insulated containers, such as, foam bottles and the like. Figure 8 illustrates the use of a pump unit according to the invention in conjunction with a quart container 64.which may be of the foam type or similar construction.
- While we have shown and described embodiments of this invention in some detail, it will be understood that this description and illustrations are offered merely by way of example, and that the invention is to be limited in scope only by the. appended claims.
Claims (10)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80373677A | 1977-06-06 | 1977-06-06 | |
US803736 | 1977-06-06 | ||
US05/837,519 US4113147A (en) | 1977-06-06 | 1977-09-29 | Vacuum bottle with air pump to pressurized bottle to effect dispensing |
US837519 | 1977-09-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0000093A1 true EP0000093A1 (en) | 1978-12-20 |
EP0000093B1 EP0000093B1 (en) | 1982-04-07 |
Family
ID=27122625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78300022A Expired EP0000093B1 (en) | 1977-06-06 | 1978-06-06 | A pump dispenser for a vacuum bottle |
Country Status (21)
Country | Link |
---|---|
EP (1) | EP0000093B1 (en) |
JP (1) | JPS543951A (en) |
AU (1) | AU526695B2 (en) |
BR (1) | BR7708159A (en) |
CA (1) | CA1073416A (en) |
CH (1) | CH631127A5 (en) |
DE (2) | DE2861714D1 (en) |
DK (1) | DK147822B (en) |
ES (1) | ES470554A1 (en) |
FI (1) | FI781785A (en) |
FR (1) | FR2393556A1 (en) |
GB (1) | GB1562122A (en) |
GR (1) | GR68703B (en) |
HK (1) | HK52481A (en) |
IE (1) | IE46915B1 (en) |
IT (1) | IT7824155A0 (en) |
LU (1) | LU79773A1 (en) |
MX (1) | MX146964A (en) |
NL (1) | NL7806168A (en) |
NO (1) | NO147737C (en) |
SE (1) | SE7806564L (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0125528A2 (en) * | 1983-05-10 | 1984-11-21 | Rotpunkt Dr. Anso Zimmermann | Pouring spout and method of making a container with such a spout |
GB2214240A (en) * | 1988-01-06 | 1989-08-31 | Laurence Patrick Wettern | Wine aeration pump |
EP1818108A1 (en) * | 2006-01-30 | 2007-08-15 | Chang-Keng Tsai | Air pump device for a fluid dispenser |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6612468B2 (en) | 2000-09-15 | 2003-09-02 | Rieke Corporation | Dispenser pumps |
US7802701B2 (en) | 2005-01-14 | 2010-09-28 | Rieke Corporation | Up-lock seal for dispenser pump |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE144412C (en) * | ||||
US2066977A (en) * | 1935-04-27 | 1937-01-05 | Lawrence E Iler | Liquid dispenser |
FR1014150A (en) * | 1949-05-12 | 1952-08-11 | Porros Patentverwaltung G M B | Container closure with dispensing device |
US3162324A (en) * | 1961-11-22 | 1964-12-22 | Robertshaw Controls Co | Pneumatic dispenser |
DE2237518A1 (en) * | 1971-08-03 | 1973-02-15 | Hisao Kanbayashi | LIQUID CONTAINER |
US3905520A (en) * | 1973-04-10 | 1975-09-16 | Nat Vacuum Bottle Mfg | Vacuum flask provided with a pumping device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034179B1 (en) * | 1970-12-04 | 1975-11-06 | ||
JPS5236363B2 (en) * | 1972-03-07 | 1977-09-14 | ||
JPS51148852A (en) * | 1975-06-16 | 1976-12-21 | Kiyoshi Miyagawa | Safety stopper for vacuum bot tle |
-
1977
- 1977-11-18 GB GB48012/77A patent/GB1562122A/en not_active Expired
- 1977-12-08 BR BR7708159A patent/BR7708159A/en unknown
-
1978
- 1978-01-24 JP JP662878A patent/JPS543951A/en active Pending
- 1978-05-15 CA CA303,361A patent/CA1073416A/en not_active Expired
- 1978-05-29 GR GR56379A patent/GR68703B/el unknown
- 1978-05-31 IE IE1097/78A patent/IE46915B1/en unknown
- 1978-06-02 DK DK247778AA patent/DK147822B/en not_active Application Discontinuation
- 1978-06-02 IT IT7824155A patent/IT7824155A0/en unknown
- 1978-06-02 NO NO781941A patent/NO147737C/en unknown
- 1978-06-05 FI FI781785A patent/FI781785A/en not_active Application Discontinuation
- 1978-06-05 MX MX173693A patent/MX146964A/en unknown
- 1978-06-05 FR FR787816717A patent/FR2393556A1/en active Granted
- 1978-06-05 SE SE7806564A patent/SE7806564L/en unknown
- 1978-06-06 CH CH617378A patent/CH631127A5/en not_active IP Right Cessation
- 1978-06-06 AU AU36870/78A patent/AU526695B2/en not_active Expired
- 1978-06-06 EP EP78300022A patent/EP0000093B1/en not_active Expired
- 1978-06-06 LU LU79773A patent/LU79773A1/en unknown
- 1978-06-06 DE DE7878300022T patent/DE2861714D1/en not_active Expired
- 1978-06-06 NL NL7806168A patent/NL7806168A/en not_active Application Discontinuation
- 1978-06-06 ES ES470554A patent/ES470554A1/en not_active Expired
- 1978-06-06 DE DE19782825223 patent/DE2825223A1/en not_active Withdrawn
-
1981
- 1981-10-29 HK HK524/81A patent/HK52481A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE144412C (en) * | ||||
US2066977A (en) * | 1935-04-27 | 1937-01-05 | Lawrence E Iler | Liquid dispenser |
FR1014150A (en) * | 1949-05-12 | 1952-08-11 | Porros Patentverwaltung G M B | Container closure with dispensing device |
US3162324A (en) * | 1961-11-22 | 1964-12-22 | Robertshaw Controls Co | Pneumatic dispenser |
DE2237518A1 (en) * | 1971-08-03 | 1973-02-15 | Hisao Kanbayashi | LIQUID CONTAINER |
US3905520A (en) * | 1973-04-10 | 1975-09-16 | Nat Vacuum Bottle Mfg | Vacuum flask provided with a pumping device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0125528A2 (en) * | 1983-05-10 | 1984-11-21 | Rotpunkt Dr. Anso Zimmermann | Pouring spout and method of making a container with such a spout |
EP0125528A3 (en) * | 1983-05-10 | 1987-02-04 | Rotpunkt Dr. Anso Zimmermann | Pouring spout and method of making a container with such a spout |
GB2214240A (en) * | 1988-01-06 | 1989-08-31 | Laurence Patrick Wettern | Wine aeration pump |
EP1818108A1 (en) * | 2006-01-30 | 2007-08-15 | Chang-Keng Tsai | Air pump device for a fluid dispenser |
Also Published As
Publication number | Publication date |
---|---|
JPS543951A (en) | 1979-01-12 |
GR68703B (en) | 1982-02-02 |
MX146964A (en) | 1982-09-15 |
NO147737C (en) | 1983-06-08 |
IT7824155A0 (en) | 1978-06-02 |
FI781785A (en) | 1978-12-07 |
NO147737B (en) | 1983-02-28 |
DK247778A (en) | 1978-12-07 |
CA1073416A (en) | 1980-03-11 |
AU3687078A (en) | 1979-12-13 |
DK147822B (en) | 1984-12-17 |
FR2393556B3 (en) | 1981-01-30 |
IE781097L (en) | 1978-12-06 |
DE2825223A1 (en) | 1978-12-21 |
EP0000093B1 (en) | 1982-04-07 |
ES470554A1 (en) | 1979-10-16 |
IE46915B1 (en) | 1983-11-02 |
NL7806168A (en) | 1978-12-08 |
CH631127A5 (en) | 1982-07-30 |
HK52481A (en) | 1981-11-06 |
DE2861714D1 (en) | 1982-05-19 |
NO781941L (en) | 1978-12-07 |
SE7806564L (en) | 1978-12-07 |
GB1562122A (en) | 1980-03-05 |
LU79773A1 (en) | 1978-11-28 |
FR2393556A1 (en) | 1979-01-05 |
BR7708159A (en) | 1978-11-14 |
AU526695B2 (en) | 1983-01-27 |
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