US20070029347A1 - Fluid product distributor device - Google Patents
Fluid product distributor device Download PDFInfo
- Publication number
- US20070029347A1 US20070029347A1 US10/571,056 US57105606A US2007029347A1 US 20070029347 A1 US20070029347 A1 US 20070029347A1 US 57105606 A US57105606 A US 57105606A US 2007029347 A1 US2007029347 A1 US 2007029347A1
- Authority
- US
- United States
- Prior art keywords
- valve
- pump
- pump according
- valve seat
- deformable
- 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
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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
- B05B11/10—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
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
Definitions
- the present invention relates to a fluid dispenser pump and to a fluid dispenser device including such a pump.
- Pumps are well known for dispensing powders or fluids, in particular in the fields of pharmacy, perfumery, or cosmetics.
- Such pumps often include a pump body that contains a pump chamber in which a piston slides in leaktight manner, so as to dispense, in metered manner, a substance contained in the pump chamber.
- the pump chamber When the pump is a metering pump, the pump chamber generally includes an inlet valve and an outlet valve, which, when they are both closed, define the volume of the dose to be dispensed. Sealing the outlet valve in the closed position serves firstly to avoid leakage during actuation, but also to avoid any contamination of the substance contained in the pump chamber in the rest position.
- any risk of leakage, and thus reduction in dose is not desirable. Consequently, the sealing at the outlet valve must be substantial. However, when the outlet valve is in the closed position, substantial sealing should not prevent said valve from functioning properly, e.g. by blocking it in the closed position, thereby preventing the pump from functioning properly, and thus preventing a correct dose from being dispensed.
- An object of the present invention is to provide a fluid dispenser pump that satisfies the above-mentioned requirements in optimum manner, without reproducing the drawbacks of the prior-art pumps.
- an object of the present invention is to provide a fluid dispenser pump that provides perfect sealing when the outlet valve of the pump chamber is in the closed position.
- Another object of the present invention is to provide a fluid dispenser pump that functions in safe and reliable manner, and that guarantees precise and reproducible dispensing of a dose of fluid each time the pump is actuated.
- Another object of the present invention is to provide a fluid dispenser pump that is simple and inexpensive to manufacture and to assemble.
- the present invention thus provides a fluid dispenser pump comprising a pump body, a pump chamber provided with an inlet valve and with an outlet valve, and a piston sliding in said pump body so as to dispense the fluid contained in the pump chamber, said outlet valve comprising a valve element co-operating with a valve seat, said outlet valve further comprising deformable sealing means provided between said valve seat and said valve element, said sealing means being elastically deformed when said outlet valve is in the closed position, so as to improve sealing.
- said piston is secured to an actuator rod, said actuator rod being hollow and defining an expulsion channel for the fluid, said valve seat being formed in said expulsion channel.
- the outlet valve is advantageously, urged towards its closed position by a spring, said valve being opened by the pressure of the fluid contained in the pump chamber.
- said deformable sealing means are formed on the valve element.
- said deformable sealing means are formed on the valve seat.
- said deformable sealing means comprise at least one deformable annular lip.
- said annular lip is flexible and co-operates with a frustoconical surface when the valve is in the closed position.
- said annular lip is made by overmolding.
- the valve seat advantageously includes a flexible annular lip co-operating with a frustoconical valve element, said valve element being substantially rigid.
- valve seat is made out of two materials, said annular lip being made out of a material that is softer than the remainder of the valve seat.
- said deformable sealing means comprise a deformable O-ring.
- said O-ring co-operates with a frustoconical surface when the valve is in the closed position.
- said O-ring is secured by interfitting, snap-fastening, or overmolding.
- valve element is substantially rigid and includes a deformable O-ring co-operating with a frustoconical valve seat, said valve seat being substantially rigid.
- the present invention also provides a fluid dispenser device including a pump as described above.
- FIG. 1 is a diagrammatic section view of a pump constituting a first embodiment of the present invention.
- FIG. 2 is a view similar to that of FIG. 1 showing a second embodiment of the present invention.
- the pump includes a pump body 10 in which there slides a piston 50 secured to an actuator rod 5 .
- the actuator rod 5 is advantageously hollow and defines an expulsion channel 4 for the fluid.
- the pump body 10 contains a pump chamber 20 that is defined between an inlet valve 30 and an outlet valve 40 .
- the outlet valve 40 and the inlet valve 30 includes a common valve element 41 .
- the valve element When the inlet valve 30 is in the closed position, the valve element is urged against an inlet valve seat 32 that is advantageously secured to the pump body 10 , and when the outlet valve 40 is in the closed position 40 , the valve element is urged against an outlet valve seat 42 that is advantageously secured to the actuator rod 5 , and preferably defined at the expulsion channel 4 .
- the present invention also applies to pumps in which the inlet and outlet valve elements 30 , 40 are different, e.g. completely separate.
- the present invention relates more specifically to the outlet valve 40 of the pump chamber 20 , and all of the other components of the pump could be modified.
- the pump is therefore not described in greater detail below, since the other elements of the pump do not directly affect the present invention.
- FIG. 1 shows a first embodiment of the invention.
- the valve seat 42 includes at least one flexible deformable lip 45 that co-operates with the valve element 41 when the outlet valve 40 is in the closed position.
- the valve element 41 is preferably rigid and advantageously includes a frustoconical surface at its surface which co-operates with the flexible lip 45 .
- the lip 45 is deformed, so as to improve sealing in the closed position.
- the lip 45 can be made integrally with the remainder of the valve seat 42 , and in particular with the actuator rod 5 and the piston 50 , in the embodiment in FIG. 1 .
- the lip 45 could be overmolded on the valve seat 42 , in which event it could be made out of a material that is softer than the remainder of the valve seat, and in particular than the remainder of the actuator rod 5 .
- the outlet valve 40 is preferably urged towards its closed position by a spring 70 , preferably the return spring of the pump that returns it to its rest position, and this is also valid for the embodiment shown in FIG. 2 .
- the outlet valve 40 is advantageously opened by the pressure of the fluid contained in the pump chamber 20 .
- the outlet valve could be urged towards its closed position by the pressure of the fluid contained in the pump chamber while the pump is being actuated.
- the outlet valve could then be opened at the end of the actuation stroke, e.g. mechanically.
- the spring 70 or the pressure of the fluid that urges the outlet valve 40 towards its closed position improves sealing still further when the outlet valve is in the closed position, and particularly while the pump is being actuated, thereby preventing any fluid from leaking, and thus preventing any dose from being lost.
- valve element 41 includes a deformable or flexible sealing lip that co-operates with a valve seat 42 that could be frustoconical, for example.
- FIG. 2 shows a second embodiment of the present invention.
- the deformable sealing element is formed by an O-ring disposed on the valve element.
- the O-ring can be secured on the valve element 41 by interfitting, snap-fastening, or overmolding.
- the O-ring is advantageously made out of a material that is softer than the remainder of the valve element, thereby improving sealing in the closed position.
- the O-ring 46 advantageously co-operates with a frustoconical surface of the valve seat 42 .
- a frustoconical surface for co-operating with the deformable sealing element serves not only to center the valve element 41 on the valve seat 42 , but also makes it possible to provide sealing during actuation, even when the force exerted by the user on the actuator rod 5 is not completely axial.
- the pump of the present invention is designed for fastening onto a reservoir (not shown), e.g. by means of a fastener ring 60 which would be a clamping cap in the embodiment shown.
- a dispenser head (not shown) can also be assembled on the actuator rod 5 , so as to dispense the fluid coming from the pump.
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0310653A FR2859460B1 (fr) | 2003-09-10 | 2003-09-10 | Pompe de distribution de produit fluide |
FR03106553 | 2003-09-10 | ||
PCT/FR2004/002233 WO2005028120A1 (fr) | 2003-09-10 | 2004-09-02 | Pompe de distribution de produit fluide |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070029347A1 true US20070029347A1 (en) | 2007-02-08 |
Family
ID=34178882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/571,056 Abandoned US20070029347A1 (en) | 2003-09-10 | 2004-09-02 | Fluid product distributor device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070029347A1 (fr) |
EP (1) | EP1673176B1 (fr) |
JP (1) | JP2007505256A (fr) |
CN (1) | CN1849177A (fr) |
DE (1) | DE602004012586T2 (fr) |
FR (1) | FR2859460B1 (fr) |
WO (1) | WO2005028120A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100038383A1 (en) * | 2007-03-12 | 2010-02-18 | Valois Sas | Pump for distributing liquid product and dispenser comprising such a pump |
US20200360601A1 (en) * | 2014-04-07 | 2020-11-19 | Becton, Dickinson And Company | Rotational metering pump for insulin patch |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130299517A1 (en) * | 2012-05-09 | 2013-11-14 | Gojo Industries, Inc. | Pull-activated foam pumps, dispensers and refill units |
CN104555049B (zh) * | 2013-10-14 | 2017-04-12 | 株式会社衍宇 | 能再吸引内容物的给料器 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420011A (en) * | 1981-12-08 | 1983-12-13 | Harry Roger | Dual piston sensing mechanism |
US5110271A (en) * | 1989-12-04 | 1992-05-05 | Hofmann Joerg | Hand-operable double-action metering and/or atomizing pump |
US5176296A (en) * | 1990-08-07 | 1993-01-05 | Valois (Societe Anonyme) | Precompression metering-proportioning pump enabling its efficiency to be improved by early admission into the pump working space |
US5190192A (en) * | 1990-07-09 | 1993-03-02 | Valois | Intrinsically safe metering pump for a pressurized spray head |
US5826756A (en) * | 1996-03-08 | 1998-10-27 | Continental Sprayers International, Inc. | Water shield for pump dispenser |
US6053364A (en) * | 1995-10-06 | 2000-04-25 | Airspray N.V. | Device for dispensing an air-liquid mixture, in particular foam, and operating unit intended therefor |
US6340102B1 (en) * | 1999-02-19 | 2002-01-22 | Cheng-Yuan Su | Sealing valve structure for liquid sprayers |
US6866168B2 (en) * | 2002-04-17 | 2005-03-15 | Valois Sas | Fluid dispenser pump |
US6932246B2 (en) * | 2002-03-15 | 2005-08-23 | L'oreal | Assembly for packaging and dispensing a product, especially in the form of a sample |
US7080759B2 (en) * | 2000-10-23 | 2006-07-25 | Valois S.A.S. | Dispensing head and fluid product dispenser comprising same |
US7182226B2 (en) * | 2001-09-21 | 2007-02-27 | Ing. Erich Pfeiffer Gmbh | Dosing device comprising a medium reservoir and corresponding pump device |
US7201296B2 (en) * | 2001-09-21 | 2007-04-10 | Ing. Erich Pfeiffer Gmbh | Dosing device with a pumping device |
-
2003
- 2003-09-10 FR FR0310653A patent/FR2859460B1/fr not_active Expired - Fee Related
-
2004
- 2004-09-02 DE DE602004012586T patent/DE602004012586T2/de not_active Expired - Fee Related
- 2004-09-02 WO PCT/FR2004/002233 patent/WO2005028120A1/fr active IP Right Grant
- 2004-09-02 JP JP2006525854A patent/JP2007505256A/ja not_active Withdrawn
- 2004-09-02 EP EP04787288A patent/EP1673176B1/fr active Active
- 2004-09-02 US US10/571,056 patent/US20070029347A1/en not_active Abandoned
- 2004-09-02 CN CNA2004800259326A patent/CN1849177A/zh active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420011A (en) * | 1981-12-08 | 1983-12-13 | Harry Roger | Dual piston sensing mechanism |
US5110271A (en) * | 1989-12-04 | 1992-05-05 | Hofmann Joerg | Hand-operable double-action metering and/or atomizing pump |
US5190192A (en) * | 1990-07-09 | 1993-03-02 | Valois | Intrinsically safe metering pump for a pressurized spray head |
US5176296A (en) * | 1990-08-07 | 1993-01-05 | Valois (Societe Anonyme) | Precompression metering-proportioning pump enabling its efficiency to be improved by early admission into the pump working space |
US6053364A (en) * | 1995-10-06 | 2000-04-25 | Airspray N.V. | Device for dispensing an air-liquid mixture, in particular foam, and operating unit intended therefor |
US5826756B1 (en) * | 1996-03-08 | 2000-11-14 | Continental Sprayers Int Inc | Water shield for pump dispenser |
US5826756A (en) * | 1996-03-08 | 1998-10-27 | Continental Sprayers International, Inc. | Water shield for pump dispenser |
US6340102B1 (en) * | 1999-02-19 | 2002-01-22 | Cheng-Yuan Su | Sealing valve structure for liquid sprayers |
US7080759B2 (en) * | 2000-10-23 | 2006-07-25 | Valois S.A.S. | Dispensing head and fluid product dispenser comprising same |
US7182226B2 (en) * | 2001-09-21 | 2007-02-27 | Ing. Erich Pfeiffer Gmbh | Dosing device comprising a medium reservoir and corresponding pump device |
US7201296B2 (en) * | 2001-09-21 | 2007-04-10 | Ing. Erich Pfeiffer Gmbh | Dosing device with a pumping device |
US6932246B2 (en) * | 2002-03-15 | 2005-08-23 | L'oreal | Assembly for packaging and dispensing a product, especially in the form of a sample |
US6866168B2 (en) * | 2002-04-17 | 2005-03-15 | Valois Sas | Fluid dispenser pump |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100038383A1 (en) * | 2007-03-12 | 2010-02-18 | Valois Sas | Pump for distributing liquid product and dispenser comprising such a pump |
US8292130B2 (en) * | 2007-03-12 | 2012-10-23 | Aptar France Sas | Pump for distributing liquid product and dispenser comprising such a pump |
US20200360601A1 (en) * | 2014-04-07 | 2020-11-19 | Becton, Dickinson And Company | Rotational metering pump for insulin patch |
US11696983B2 (en) * | 2014-04-07 | 2023-07-11 | Becton, Dickinson And Company | Rotational metering pump for insulin patch |
Also Published As
Publication number | Publication date |
---|---|
FR2859460B1 (fr) | 2005-11-04 |
JP2007505256A (ja) | 2007-03-08 |
WO2005028120A1 (fr) | 2005-03-31 |
DE602004012586D1 (de) | 2008-04-30 |
CN1849177A (zh) | 2006-10-18 |
FR2859460A1 (fr) | 2005-03-11 |
DE602004012586T2 (de) | 2009-04-02 |
EP1673176B1 (fr) | 2008-03-19 |
EP1673176A1 (fr) | 2006-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: VALOIS S.A.S, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LE MANER, FRANCOIS;REEL/FRAME:017670/0891 Effective date: 20060208 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |