CN101068624B - Pump for manually dispensing a fluid substance sealed in a container - Google Patents
Pump for manually dispensing a fluid substance sealed in a container Download PDFInfo
- Publication number
- CN101068624B CN101068624B CN2005800413817A CN200580041381A CN101068624B CN 101068624 B CN101068624 B CN 101068624B CN 2005800413817 A CN2005800413817 A CN 2005800413817A CN 200580041381 A CN200580041381 A CN 200580041381A CN 101068624 B CN101068624 B CN 101068624B
- Authority
- CN
- China
- Prior art keywords
- pump
- container
- hole
- ring cover
- shaped body
- 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 - Fee Related
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
- B05B11/0005—Components or details
- B05B11/0037—Containers
- B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
- B05B11/0041—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure without contact of the fluid remaining in the container with the atmospheric air
-
- 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
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
- B05B11/1025—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem a spring urging the outlet valve in its closed position
-
- 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
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/105—Sealing arrangements around pump actuating stem
Abstract
A pump enabling a fluid substance to be manually dispensed through a hollow stem (5) projecting from a hole m a ring cap (2) sealedly applied to one end of a pump. The stem can sealedly translate within said hole in the ring cap, which in its turn can be sealedly mounted on the mouth of a container containing the fluid substance to be dispensed.
Description
Technical field
The present invention relates to a kind of improved manual operation pump, be used for the quantity of liquid material of form such as hollow action bars dispense liquid material, milky substance through pump.Said pump can substance distribute in arbitrary position; Simultaneously under regular service conditions; Between the hole surface in the ring cover of the outer surface of anti-fluid (air, gas or liquid) through bar and adjacent pump, said bar extends through said hole and also can move.
Background technology
Known have many kinds of manual operation pumps, and in the operating process of pump, the quantity of liquid material (liquid or emulsion) of the container suction that is mounted thereon from pump is assigned to the outside through the cavity of bar; The bar of hollow extends to pump housing outside through passing the hole that is provided with on the ring cover, and said ring cover forms the part of pump and limits an end of the said pump housing.Term " ring cover " is meant any part or the element that at one end is used for sealing the pump housing, and it allows bar therefrom to pass through.Known pump is installed on the container, and under halted state, pressure and atmospheric pressure in the container are equal basically.
At US 3,583,605A, US 4,960, the pump of describing in detail among 230A, EP-B-0301615 and the EP-A-1334774 are the examples of the pump of known type, and its instruction is incorporated herein by reference.DE 1728199A has also described the closely similar pump of describing in a kind of and aforementioned four patents of pump.
In order to prevent when extracting fluid by pump from container out and distributing, in container, to form vacuum, passage or hole must be set so that extraneous air can get in the container in pump, to keep the pressure substantially constant in the container, equal atmospheric pressure basically.In known technology; The passage of air from be arranged on the pump housing or pass through from the passage between pump and the pump ring cover mounted thereto; Air always passes through between the surface in the hole that the ring cover of hollow rod outer surface and relative pump is provided with, and wherein said bar passes from said hole.
In all aforesaid existing patents; This has all been made explanation clearly, for example in US 3583605A among capable, the US 4960230A of the 2nd hurdle 62-67 among capable, the EP-B-0301615 of the 4th hurdle 2-5 among positive number two row on the triplex row reciprocal on the 4th hurdle and the 5th hurdle, the EP-A-1334774 among the capable and DE 1728199A of the 1st hurdle 14-22 the 8th page the 1st section.Passage between the surface in the hole on the ring cover that the outer surface of the hollow stem of pump and bar therefrom pass has brought some problems; One of them problem is to penetrate into the quality that extraneous air in the container can reduce the flowing material that container contents receives; Another problem is to be in horizontal level or during towards the downward press pump of container when container and pump, and fluid can or leak into the outside of container through said passage seepage.
Can not address these problems through known pump,, in container, form vacuum during with the fluid that prevents in dispense container, to hold a part of and cause pump get clogged (thereby no longer can use) because outside air must enter in the container.
In a various embodiment, treat to distribute so that the flowing material that uses must be contained in the container by distributor, gas-pressurized also is housed in this container, said gas-pressurized is generally used for said material is discharged through distributor under pressure.Distributor plays the effect of manually operated operated pneumatic valve, the unlatching of operated pneumatic valve or close continuous dispensing or the assigned interrupt that causes material respectively.
But also known pump-type distributor is used for from holding the container dispenses fluid material or the gas-pressurized of flowing material and airtight gas-pressurized.As if it is that the structure of these distributors looks very similar with those pumps that are applied in usually on the inner not pressurizing vessel, but in fact the two is obviously different.
For example at US 3,211,346A, US 4,511, among 069A and the GB 1537436A some such pump-type distributors are described, and its instruction is incorporated herein by reference.
These all pump-type distributors all exist some problems, and these problems have brought difficulty for the use of pump-type distributor, and have in fact also hindered the practical application of pump-type distributor.In this respect; These pump-type distributors have the structure similar basically with pump; But different is that it comprises cup shaped body, and the cavity of this cup shaped body is sealed by ring cover, and ring cover is contained on the vessel port of the container that holds flowing material or gas-pressurized hermetically.Said cup shaped body has chamber with holes, and under the effect of container inner pressure, flowing material rises in the chamber through said hole.Said chamber is by a pistons delimit, and this piston can move along the inner surface of cup shaped body hermetically: the hollow stem that is connected on the piston can move through the hole that is provided with on the ring cover of pump hermetically.Under halted state, piston is promoted by a compression spring that is resisted against on the cup shaped body, and the cavity in the pump rod then passes through closed check valve.
When pump was in halted state, the inner pressor substance of pump acted on the piston, with the sealing of holding pump.On the pump housing, not having to be provided with can be so that flowing material or gas-pressurized can touch hole, hole or the passage of piston face, and wherein said surface is away from the surface towards internal tank.Such result is: carry out the branch timing when operating the pump-type distributor substance; The pressure fluid material acts on the thrust on the piston in thrust and the pump cavity of compression spring action on piston in order to overcome; On bar, must apply a pressure, the operation of this pressure ratio is used to distribute the required pressure of conventional pump of pressure fluid to want big.Therefore, the internal pressure of the container that pump-type distributor is mounted thereon is big more, and the distribution button of installing at the free end of hollow stem is more little, and is pump operated just more difficult.
Summary of the invention
Main purpose of the present invention provides a kind of pump, and it does not allow to pass through between air, gas or the liquid hole surface from the ring cover of the outer surface of corresponding bar and pump under using any state of pump.
Another purpose provides a kind of pump, thereby it can be installed in hermetically on the container and limits airtight space with container, and pump can extract and distribute the quantity of liquid material from this container.
These and purpose further realize through following pump; Said pump comprises the cup shaped body with openend and blind end; Ring cover is housed on the said openend hermetically, and said blind end is provided with the hole, and flowing material can pass through this hole; Enter into down in the pump chamber via check valve; Flowing material can be through distributing the outside that is discharged to pump from following pump chamber, and said pump chamber is down defined by annular piston, and this annular piston can move along the inner surface of cup shaped body and the outer surface of the hollow action bars that is used for dispenses fluid material hermetically; Extend also in the hole of said bar from be arranged on said ring cover and can move axially hermetically through being arranged on the said hole in the said ring cover; Said ring cover and said piston limit goes up pump chamber, and it is characterized in that: ring cover is contained on the openend of cup shaped body hermetically, and the said pump chamber of going up is only through being arranged at least one passage and the external communications of said cup shaped body in the said cup shaped body.
A kind of new and especially attractive application of pump in accordance with the present invention is: thus pump is installed on the container when forming an airtight space with container; The flowing material that in confined space, exists produces the gas phase of compression; Particularly in said confined space, have at least a low-boiling point liquid, said low-boiling point liquid has the 1.00kg/cm of being lower than in the time of 15 ℃
2Saturated vapour pressure, and in the time of 37.8 ℃, have the 2.8kg/cm of being lower than
2Saturated vapour pressure, the vapour pressure of its generation is very little when 21 ℃ environment temperature.
Said low-boiling point liquid be boiling point+15 ℃ and+85 ℃ between, and produce the fluid chemistry material of the pressure that is about 1 atmospheric pressure (about 760 millimetress of mercury).
Low-boiling point liquid preferably can be chosen from following material: isopentane, isohexane, pentane, n-hexane, carrene, a chloropropane, 1-1-dichloroethanes, Sec-Butyl Chloride, Arcton 11 CFC 11, trichorotrifluoroethane CFC 113, ether, methylene-dimethyl ether, dimethoxymethane and acetone.
Description of drawings
In conjunction with infinite example in the accompanying drawing, through the description to instantiation, pump structure and characteristic will be clearer among the present invention, wherein:
Fig. 1 is respectively the longitudinal sectional drawing of the preferred embodiment of pump to Fig. 4, and the pump among the figure is in respectively: the initial moment of halted state, allocated phase, the finish time of allocated phase and the centre position that flowing material is drawn into down the pump chamber stage.
The specific embodiment
Except after some details of chatting, Fig. 1 has shown the pump of known type structure to Fig. 4.In order to provide a detailed example; On the structural entity that said pump has with this specification preface in the pump of the existing patent illustrated explained similar or identical; Its instruction is combined in here as a reference: therefore for the sake of simplicity, will no longer describe in detail said pump structure and operation.
Said pump comprises cup shaped body 1, and an end of this cup shaped body 1 has hole 3 by ring cover 2 sealings on the other end.The hollow space that container (not shown in figures) limits is led in hole 3.The ring cover 2 of pump is installed on the vessel port, and adopts any known mode to seal (for example crimping etc.).
The inside of cup shaped body holds annular piston 4; This annular piston 4 can move and seal respectively against above-mentioned surface along the inner surface of cup shaped body and the outer surface of hollow stem 5; Said bar can pass the hole that is provided with on the flange 2 and move vertically; And flowing material can be discharged to outside (thereby use) along the cavity of bar, and said flowing material before had been sucked into the following pump chamber 8 between the inlet hole 3 (referring to accompanying drawing) of the lower surface that is positioned at piston 4 and pump, and following pump chamber 8 holds a check valve of being made up of ball 11; Movable between seal receptacle that this check valve can be provided with in the upper end in hole 3 and the stopping element 13, wherein stopping element 13 forms the part of the pump housing.Last pump chamber 9 is limited in the cup shaped body, between piston 4 tops and flange 2, and through being set directly at hole or the external communications of path 10 and cup shaped body in the cup shaped body 1.Like this, when pump seal when being installed on the vessel port, the interior pressure of container that the pressure in the last pump chamber 9 are mounted thereon with equaling pump seal all the time.
No matter pump is in user mode or halted state; Have airtight sealing between the surface in the hole on the outer surface of said bar 5 and the relative ring cover 2, said bar extends through said hole and can move, in instance shown in the drawings; Said sealing can be provided (although the sealing between the hole on said bar and the ring cover can provide in a different manner by packing ring or the O shape ring 12 that rubber or suitable elastic materials are processed; The lip limit for example is set simply, and this lip limit forms the part of ring cover 2, but its plastic material such as polyethylene, polypropylene etc. by deformation are processed; For the sake of simplicity, the lip limit is not shown).
Main inner characteristic of the present invention is: (no matter pump is in user mode or in halted state) hollow stem 5 is contained in the pilot hole on the ring cover 2 all the time and can under sealing state, in said pilot hole, moves.In addition, the cup shaped body 1 of pump pump chamber 9 places on the pump housing are provided with hole or path 10.
Therefore; Because last pump chamber 9 can not make liquid, air or gas seepage between the hole that the outer surface and the said bar of bar extends through ring cover wherein; And ring cover 2 airtight being installed in hermetically on the vessel port (not shown for simplicity) therefore do not have gas, air or fluid to go out from bar leakage or seepage.Simultaneously, (because path 10 existence) go up in pump chamber 9 pressure all the time with the airtight container that is mounted thereon hermetically of pump in pressure equate.
Therefore; Be installed on the vessel port of known cylindrical chamber, the other end of this container is through a movable base sealing, during the material that holds in each dispense container with supposing pump seal; Said movable base moves; Under any user mode, air all can not penetrate in the container like this, thereby product that container contents is received or material can be by air pollutions or can hardening or exsiccation.
But be installed in the situation on the sack that receives atmospheric extruding deformation at pump, perhaps pump is installed under the situation on the known type container that holds gas-pressurized, and above-mentioned situation is suitable equally.
A kind of especially attractive and favourable application of said pump is: (pump is installed in and makes on this rigid container that internal tank forms airtight sealed space) is equipped with flowing material, half dense material or the milky substance that is mixed with low-boiling point liquid in the rigid container.Said low-boiling point liquid just during 21 ℃ of left and right sides, produces small vapour pressure in regular service conditions.
Said low-boiling point liquid is in the time of 15 ℃, to have the 1.00kg/cm of being lower than
2Saturated vapour pressure, and in the time of 37.80 ℃, have the 2.8kg/cm of being lower than
2The fluid of saturated vapour pressure.
Said low-boiling point liquid be boiling point+15 ℃ and+85 ℃ between and produce the fluid chemistry material of the pressure that is about 1 atmospheric pressure (about 760 millimetress of mercury).
Preferred low-boiling point liquid is chosen from following material composition: isopentane, isohexane, pentane, n-hexane, carrene, a chloropropane, 1-1-dichloroethanes, Sec-Butyl Chloride, Arcton 11 CFC 11, trichorotrifluoroethane CFC 113, ether, methylene-dimethyl ether, dimethoxymethane and acetone.
Under the sort of situation; When pump distributing fluids mixture; The low-boiling point liquid that exists in the container evaporates from its liquid phase mixture, and recovers the desired pressure (a little higher than atmospheric pressure) in the container, thereby avoids forming the vacuum that obstruction is distributed from rigid container continuously.
A characteristic that is even more important of the said pump that is described with reference to the drawings is: when halted state, the following pump chamber of pump 8 equates with pressure in the last pump chamber 9, and therefore acting on the upper surface of piston 4 is identical with pressure on the lower surface.This shows; For (for simplicity through the cavity dispenses fluid material in the bar; The button of any known type is installed on the outside free end of the pump of bar), it is applied to pressure on the bar (referring to accompanying drawing 1 to accompanying drawing 3) only need overcome the thrust of two springs 20 and 30, and needs under the compression collection and the flowing material that holds in the pump chamber 8 to make the sealing lip 40 on the piston 4 separate with corresponding seal receptacle in the axle collar 50; The said axle collar and bar 5 are rigidly connected, and therefore form the part of bar 5.Therefore, the operation of pump does not just need very big power, and power that it is required and the pump that is installed on the fluid material container with known non-tight mode divide the required power of timing to equate.
Through the feed liquor stage, pump turns back to the stop position (see figure 1) from arriving the terminal position of operational stroke, can only under spring thrust, carry out reposefully; And can not resemble US 3,211,346A, US 4; 511, the pump-type distributor that kind among 069A and the GB 1537436A exists very large difficulty.In the said pump-type distributor, the piston of each chamber top is provided with the last pump chamber (promptly not existing like the indicated hole of Reference numeral in the accompanying drawing 10) of airtight sealing.
Pump of the present invention is particularly useful for being distributed under 54.4 ℃, produces less than 2.8kg/cm
2The pressure fluid of saturated vapour pressure.
Claims (1)
1. one kind is used for the pump that manual allocation is contained in the quantity of liquid material in the container hermetically; This pump comprises the cup shaped body (1) with openend and blind end; Ring cover (2) is housed on the said openend; Said blind end is provided with hole (3); Flowing material can pass through this hole (3), enters into down in the pump chamber (8) via check valve (11), and flowing material can be through distributing the outside that is discharged to pump from following pump chamber (8); Said pump chamber (8) is down defined by annular piston (4); This annular piston (4) can move along the inner surface of cup shaped body (1) and the outer surface of the hollow action bars (5) that is used for dispenses fluid material hermetically, extends also in the hole of said bar (5) from be arranged on said ring cover (2) can move axially hermetically through being arranged on the said hole in the said ring cover (2), pump chamber (9) in said ring cover (2) and said piston (4) qualification; It is characterized in that: ring cover (2) is contained on the openend of cup shaped body (1) hermetically, and the said pump chamber (9) of going up is only through being arranged on the external communications of at least one passage (10) and said cup shaped body in the said cup shaped body (1); Wherein, said container is: the other end relative with that end that said pump is installed on it perhaps is the sack that can be out of shape by atmospheric extruding through the container of a movable base sealing, or for holding the container of gas-pressurized.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000180A ITMI20050180A1 (en) | 2005-02-09 | 2005-02-09 | MANUAL ACTUALLY PUMP TO DISPENSE THE FLUID SUBSTANCE THROUGH A PROBING CABLE, TRANSFERABLE TO THE SEAL THROUGH A GUIDE HOLE FINDED IN THE PUMP CLOSING FLANGE |
| ITMI2005A000180 | 2005-02-09 | ||
| PCT/EP2005/056754 WO2006084519A1 (en) | 2005-02-09 | 2005-12-13 | Pump for manually dispensing a fluid substance sealed in a container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101068624A CN101068624A (en) | 2007-11-07 |
| CN101068624B true CN101068624B (en) | 2012-08-15 |
Family
ID=34956772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800413817A Expired - Fee Related CN101068624B (en) | 2005-02-09 | 2005-12-13 | Pump for manually dispensing a fluid substance sealed in a container |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1863590B1 (en) |
| CN (1) | CN101068624B (en) |
| BR (1) | BRPI0518918A2 (en) |
| IT (1) | ITMI20050180A1 (en) |
| RU (1) | RU2387485C2 (en) |
| WO (1) | WO2006084519A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010048986A1 (en) * | 2010-10-20 | 2012-04-26 | Ursapharm Arzneimittel Gmbh | metering |
| KR101790455B1 (en) | 2014-02-27 | 2017-10-25 | 다이또 덴끼 고교 가부시끼가이샤 | Massage device |
| WO2018000323A1 (en) | 2016-06-30 | 2018-01-04 | Graco Minnesota Inc. | Piston pump and seal ring |
| BE1023939B1 (en) * | 2016-07-13 | 2017-09-15 | Laboratoire Puressentiel S.A. | High sealing sprayer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086144A1 (en) * | 1982-02-05 | 1983-08-17 | ETABLISSEMENTS VALOIS Société Anonyme dite: | Device for delivering precise doses of aerosol |
| EP0487412A1 (en) * | 1990-11-21 | 1992-05-27 | Societe De Promotion, Recherche Et Innovation Technologique | Metering valve for liquids contained in a pressureless container |
| CN1440313A (en) * | 2000-07-07 | 2003-09-03 | 瓦卢瓦有限合伙公司 | Fluid product dispensing pump |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3211346A (en) | 1964-07-15 | 1965-10-12 | Meshberg Philip | Pump-type dispenser |
| DE1728199A1 (en) | 1968-09-09 | 1972-02-17 | Zeller Plastik Koehn Graebner | Closure with conveying and dispensing device for liquids |
| US3583605A (en) | 1969-01-17 | 1971-06-08 | Diamond Int Corp | Liquid dispensing pump |
| JPS5822259B2 (en) | 1977-07-29 | 1983-05-07 | 東洋エアゾ−ル工業株式会社 | spray device |
| DE3272873D1 (en) | 1981-06-04 | 1986-10-02 | Pharmasol Corp | Pressurized container with dispensing pump |
| IT211917Z2 (en) | 1987-07-30 | 1989-05-25 | Elettro Plastica Srl | DISPENSING PUMP APPLICABLE TO FLUID CONTAINERS. |
| ITMI20020249A1 (en) | 2002-02-11 | 2003-08-11 | Microspray Delta Spa | PERFECTLY SEALED DISPENSING PUMP APPLICABLE ON LIQUID CONTAINERS |
| FR2842875B1 (en) * | 2002-07-25 | 2006-02-10 | Valois Sa | MANUAL ACTUATED FLUID PRODUCT DELIVERY PUMP |
-
2005
- 2005-02-09 IT IT000180A patent/ITMI20050180A1/en unknown
- 2005-12-13 EP EP05821749.8A patent/EP1863590B1/en active Active
- 2005-12-13 CN CN2005800413817A patent/CN101068624B/en not_active Expired - Fee Related
- 2005-12-13 RU RU2007121149/12A patent/RU2387485C2/en not_active IP Right Cessation
- 2005-12-13 WO PCT/EP2005/056754 patent/WO2006084519A1/en active Application Filing
- 2005-12-13 BR BRPI0518918-7A patent/BRPI0518918A2/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086144A1 (en) * | 1982-02-05 | 1983-08-17 | ETABLISSEMENTS VALOIS Société Anonyme dite: | Device for delivering precise doses of aerosol |
| EP0487412A1 (en) * | 1990-11-21 | 1992-05-27 | Societe De Promotion, Recherche Et Innovation Technologique | Metering valve for liquids contained in a pressureless container |
| CN1440313A (en) * | 2000-07-07 | 2003-09-03 | 瓦卢瓦有限合伙公司 | Fluid product dispensing pump |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0518918A2 (en) | 2008-12-16 |
| RU2387485C2 (en) | 2010-04-27 |
| EP1863590B1 (en) | 2014-07-16 |
| WO2006084519A1 (en) | 2006-08-17 |
| ITMI20050180A1 (en) | 2006-08-10 |
| CN101068624A (en) | 2007-11-07 |
| EP1863590A1 (en) | 2007-12-12 |
| RU2007121149A (en) | 2008-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7004356B1 (en) | Foam producing pump with anti-drip feature | |
| CN101821014B (en) | foam dispensing assembly | |
| CN100363720C (en) | Air foam pump with shifting air piston | |
| US8695896B2 (en) | Perfume atomizer | |
| EP2133016B1 (en) | Withdrawal discharging piston pump | |
| EP1343593B1 (en) | Foam forming unit | |
| US8591207B2 (en) | Pump with side inlet valve for improved functioning in an inverted container | |
| AU720329B2 (en) | Trigger sprayer for dispensing liquids combined from separate compartments | |
| EP1973667B1 (en) | Device for the delivery of gas-liquid mixtures | |
| CA2450375A1 (en) | Bellows pump for delivery gas-liquid mixtures | |
| US9642502B2 (en) | Dual air chamber foam pumps, refill units and dispensers | |
| CN101068624B (en) | Pump for manually dispensing a fluid substance sealed in a container | |
| MXPA97007777A (en) | Sprayer with trigger to supply combined liquids from separa compartments | |
| JPH05269409A (en) | Pump sprayer | |
| KR20050072783A (en) | Viscous liquid dispensing pump | |
| JPH05270558A (en) | Manually operated pump for dispensing liquid or creamy substances at a predetermined constant pressure | |
| WO2015038692A1 (en) | Dispensers for non-collapsing containers and venting pumps | |
| US7717303B2 (en) | Pump for manually dispensing a fluid substance sealed in a container | |
| NO762666L (en) | ||
| CN101330985B (en) | Sliding-jacket pump | |
| CN100402158C (en) | Pump | |
| CN101400452A (en) | Pump for manually dispensing a fluid substance sealed in a container | |
| US20220400908A1 (en) | Pumps with positive pressure venting, refill units and dispensers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20071107 |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |