EP1673176A1 - Fluidproduktverteiler pumpe - Google Patents

Fluidproduktverteiler pumpe

Info

Publication number
EP1673176A1
EP1673176A1 EP04787288A EP04787288A EP1673176A1 EP 1673176 A1 EP1673176 A1 EP 1673176A1 EP 04787288 A EP04787288 A EP 04787288A EP 04787288 A EP04787288 A EP 04787288A EP 1673176 A1 EP1673176 A1 EP 1673176A1
Authority
EP
European Patent Office
Prior art keywords
valve
pump
pump according
valve seat
laqueue
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
Application number
EP04787288A
Other languages
English (en)
French (fr)
Other versions
EP1673176B1 (de
Inventor
François LE MANER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar France SAS
Original Assignee
Valois SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP1673176A1 publication Critical patent/EP1673176A1/de
Application granted granted Critical
Publication of EP1673176B1 publication Critical patent/EP1673176B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 a fluid dispenser device comprising such a pump.
  • Pumps are well known for dispensing fluid or pulverulent products, in particular in the field of pharmacy, perfumery or cosmetics. These pumps often have a pump body which contains a pump chamber in which a piston slides in leaktight manner to achieve metered delivery of product in the pump chamber.
  • the pump chamber When the pump is dosing, the pump chamber generally comprises an inlet valve and an outlet valve, which, when both are closed, define the volume of the dose to be dispensed.
  • the tightness of the outlet valve in the closed position serves firstly to avoid leaks during actuation, but also to avoid any contamination of the product contained in the pump chamber in the rest position.
  • the object of the present invention is to provide a fluid dispensing pump which fulfills the above-mentioned requirements optimally, without reproducing the drawbacks of the pumps of the prior art. More particularly, the present invention aims to provide a fluid dispensing pump which ensures perfect sealing in the closed position of the outlet valve of the pump chamber.
  • the present invention also aims to provide a fluid dispensing pump which operates in a safe and reliable manner and which guarantees the precise and reproducible distribution of a dose of product each time the pump is actuated.
  • the present invention also aims to provide a fluid dispensing pump which is simple and inexpensive to manufacture and assemble.
  • the present invention therefore relates to a fluid dispensing pump comprising a pump body, a pump chamber provided with an inlet valve and an outlet valve, and a piston flowing in said pump body for dispensing the product contained in the pump chamber, said outlet valve comprising a valve element cooperating with a valve seat, said outlet valve comprising deformable sealing means provided between said valve seat and said valve element, said sealing means being elastically deformed in the closed position of said outlet valve to improve sealing.
  • said piston is integral with an actuating rod, said actuating rod being hollow and defining an expulsion channel for the product, said valve seat being formed in said expulsion channel.
  • the outlet valve is biased towards its closed position by a spring, said valve being opened by the pressure of the product 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 cooperates with a frustoconical surface in the closed position of the valve.
  • said annular lip is produced by overmolding.
  • the valve seat has a flexible annular lip cooperating with a frustoconical valve element, said valve element being substantially rigid.
  • the valve seat is made of bi-material, said annular lip being made of a softer material than the rest of the valve seat.
  • said deformable sealing means comprise a deformable annular seal.
  • said annular seal cooperates with a frustoconical surface in the closed position of the valve.
  • said seal is fixed by fitting, snap-fastening or overmolding.
  • valve element is substantially rigid and comprises a deformable annular seal cooperating with a frustoconical valve seat, said valve seat being substantially rigid.
  • the present invention also relates to a device for dispensing a fluid product comprising a pump as described above.
  • Figure 1 is a schematic cross-sectional view of a pump according to a first embodiment of the present invention
  • - Figure 2 is a view similar to that of Figure 1 showing a second embodiment of the present invention.
  • the pump comprises a pump body 10 in which slides a piston 50 secured to an actuating rod 5.
  • This rod actuation 5 is advantageously hollow and defines an expulsion channel 4 for the product.
  • the pump body 10 contains a pump chamber 20 which is defined between an inlet valve 30 and an outlet valve 40.
  • the outlet valve 40 and the inlet valve 41 comprises the same element valve 41.
  • the valve seat 42 comprises at least one flexible deformable lip 45 which, in the outlet valve closed position 40, cooperates with the valve element 41.
  • This valve element 41 is preferably rigid and advantageously comprises a frustoconical surface at its surface which cooperates with the flexible lip 45.
  • the lip 45 is deformed to improve the seal in this closed position.
  • the lip 45 can be produced in a single piece with the remainder of the valve seat 42, and in particular with the actuation rod 5 and the piston 50 , in the example of FIG. 1.
  • the lip 45 could be molded onto the valve seat 42, in which case it could be made of a softer material than the remainder of the valve seat, and in particular that the remainder of the rod actuation 5.
  • This implementation improves the seal even more, while maintaining the rigidity necessary for the other components of the pump.
  • the outlet valve 40 is biased towards its closed position by a spring 70, preferably the return spring of the pump which returns it to its rest position.
  • the outlet valve 40 is advantageously opened by the pressure of the product contained in the pump chamber 20.
  • the outlet valve could be urged towards its closed position by the pressure of the product contained in the pump chamber during pump activation.
  • valve element 41 would comprise a flexible or deformable sealing lip which cooperated with a seat valve 42, which could for example be frustoconical.
  • Figure 2 shows a second embodiment of the present invention.
  • the deformable sealing element is formed by an annular seal disposed on the valve element 41.
  • This annular seal can be fixed to the valve element 41 by fitting, snap-fastening or overmolding.
  • this annular seal is made of a softer material than the rest of the valve element 41 which improves the seal in the closed position.
  • the annular seal 46 advantageously cooperates with a frustoconical surface of the valve seat 42.
  • fixing the annular seal not on the element of valve 41 but on the valve seat 42 in which case it would be a frustoconical valve element, such as that of FIG. 1, which would advantageously be used to cooperate with this annular seal 46 which would be integral with the valve seat 42.
  • the fact of providing a frustoconical surface to cooperate with the deformable sealing element (lip 45 or seal 46) not only ensures centering of the valve element 41 on the valve seat 42, but also makes it possible to ensure sealing during actuation even if the force exerted by the user on the actuating rod 5 is not entirely axial.
  • the pump of the present invention is obviously intended to be fixed on a reservoir (not shown), for example by means of a fixing ring
  • a dispensing head (not shown) can also be assembled on the actuating rod 5 to dispense the product from the pump.

Landscapes

  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
EP04787288A 2003-09-10 2004-09-02 Fluidproduktverteiler pumpe Expired - Lifetime EP1673176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0310653A FR2859460B1 (fr) 2003-09-10 2003-09-10 Pompe de distribution de produit fluide
PCT/FR2004/002233 WO2005028120A1 (fr) 2003-09-10 2004-09-02 Pompe de distribution de produit fluide

Publications (2)

Publication Number Publication Date
EP1673176A1 true EP1673176A1 (de) 2006-06-28
EP1673176B1 EP1673176B1 (de) 2008-03-19

Family

ID=34178882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04787288A Expired - Lifetime EP1673176B1 (de) 2003-09-10 2004-09-02 Fluidproduktverteiler pumpe

Country Status (7)

Country Link
US (1) US20070029347A1 (de)
EP (1) EP1673176B1 (de)
JP (1) JP2007505256A (de)
CN (1) CN1849177A (de)
DE (1) DE602004012586T2 (de)
FR (1) FR2859460B1 (de)
WO (1) WO2005028120A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913731B1 (fr) * 2007-03-12 2013-08-09 Valois Sas Pompe de distribution de produit fluide et distributeur comportant une telle pompe
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
US10967121B2 (en) * 2014-04-07 2021-04-06 Becton, Dickinson And Company Rotational metering pump for insulin patch

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420011A (en) * 1981-12-08 1983-12-13 Harry Roger Dual piston sensing mechanism
DE3940101A1 (de) * 1989-12-04 1991-06-06 Hofmann Joerg Handbetaetigbare, doppelt wirkende dosier- und/oder zerstaeuberpumpe
FR2664182B1 (fr) * 1990-07-09 1992-10-09 Valois Pompe-doseuse pour pulverisateur sous pression avec securite intrinseque.
FR2665733A1 (fr) * 1990-08-07 1992-02-14 Valois Perfectionnement d'une pompe-doseuse a precompression permettant d'en ameliorer le rendement par admission precoce dans la chambre de pompe.
NL1001366C2 (nl) * 1995-10-06 1997-04-08 Airspray Int Bv Inrichting voor het afgeven van een luchtvloeistofmengsel, in het bijzonder schuim en daarvoor bestemde bedieningseenheid.
US5826756B1 (en) * 1996-03-08 2000-11-14 Continental Sprayers Int Inc Water shield for pump dispenser
US6340102B1 (en) * 1999-02-19 2002-01-22 Cheng-Yuan Su Sealing valve structure for liquid sprayers
FR2815611B1 (fr) * 2000-10-23 2003-04-11 Valois Sa Tete de distribution et distributeur de produit fluide comportant une telle tete de distribution
US7201296B2 (en) * 2001-09-21 2007-04-10 Ing. Erich Pfeiffer Gmbh Dosing device with a pumping device
JP4210215B2 (ja) * 2001-09-21 2009-01-14 インジ エリッヒ プファイファ ゲーエムベーハ 媒体リザーバを備えた投与装置とこれのためのポンプ装置
DE60320607T2 (de) * 2002-03-15 2009-05-28 L'oreal Einheit zur Verpackung und zur Ausgabe eines Produkts, insbesondere in Form einer Probe
US6866168B2 (en) * 2002-04-17 2005-03-15 Valois Sas Fluid dispenser pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005028120A1 *

Also Published As

Publication number Publication date
JP2007505256A (ja) 2007-03-08
FR2859460B1 (fr) 2005-11-04
EP1673176B1 (de) 2008-03-19
CN1849177A (zh) 2006-10-18
DE602004012586T2 (de) 2009-04-02
FR2859460A1 (fr) 2005-03-11
US20070029347A1 (en) 2007-02-08
WO2005028120A1 (fr) 2005-03-31
DE602004012586D1 (de) 2008-04-30

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