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EP0983123B1 - Pompe a piston articule - Google Patents

Pompe a piston articule Download PDF

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Publication number
EP0983123B1
EP0983123B1 EP98928370A EP98928370A EP0983123B1 EP 0983123 B1 EP0983123 B1 EP 0983123B1 EP 98928370 A EP98928370 A EP 98928370A EP 98928370 A EP98928370 A EP 98928370A EP 0983123 B1 EP0983123 B1 EP 0983123B1
Authority
EP
European Patent Office
Prior art keywords
piston
core
sleeve
pump according
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98928370A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0983123A1 (fr
Inventor
Jean-Louis Bougamont
Hervé Lompech
Pierre Dumont
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Rexam Sofab
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 Rexam Sofab filed Critical Rexam Sofab
Publication of EP0983123A1 publication Critical patent/EP0983123A1/fr
Application granted granted Critical
Publication of EP0983123B1 publication Critical patent/EP0983123B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
    • 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
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers

Definitions

  • the present invention relates to a pump and more specifically a pump for delivering sprayed perfumes or cosmetics or low doses of pharmaceuticals.
  • a pump according to the preamble of claim 1 is known from document EP-A-691161.
  • pumps comprising a body substantially cylindrical intended to be fixed on a container and delimiting internally a dosing chamber for the product to be dispensed.
  • the lower end of the body has an intake port equipped with a valve and its upper end is, on the one hand, provided an exhaust port and, on the other hand, closed by a piston.
  • This piston is likely to move in the metering chamber, cooperating with elastic return means, between a high stop of rest and a low limit stop.
  • the first descent of the piston causes a flushing and then rising causes the filling of the chamber dosage by product.
  • the following displacements of the piston are accompanied, at the lowering, of a spray of product outside, via the orifice exhaust, under the effect of hydraulic pressure, and, on ascent, aspiration of product into the chamber via the intake port.
  • either these pumps include seals in elastomeric material which cause odor nuisance for the product, in particular, when the latter is scented, or they not understand, and the seal is not sufficient, in particular, to very volatile products.
  • the object of the present invention is to resolve so satisfactory the technical problems posed by the prior art.
  • a pump of the type comprising a substantially cylindrical body internally delimiting a metering chamber whose end bottom is provided with an inlet port fitted with a valve and the upper end of which is provided, on the one hand, with an orifice exhaust and is, on the other hand, closed by a piston capable of move in said room, cooperating with means of elastic return outside the chamber, between a high rest stop and a bottom limit stop, said piston comprising a core central integral with the lower end of an axial hollow rod whose the upper end projects outside the metering chamber and a coaxial sleeve, connected to said rod by an elastic joint ensuring, on the one hand, a tight contact with the internal wall of the chamber and delimiting, on the other hand, with said core, a conduit annular evacuation likely to be opened by displacement of said socket relative to the core and the upper part of the body pump being closed by a flange, the internal face, on the one hand, forms the upper stop of the piston and the external face
  • said socket comprises a flared lower skirt whose inner face facing the core is provided with a peripheral ring intended to be, in the closed position of the discharge conduit, in sealed contact with said core.
  • said articulation has a central collar mounted by radial tightening on the periphery of said axial hollow rod and connected to the bushing by a spacer elastically deformable.
  • the collar consists of a central sleeve provided with a latching member in the part upper body and a peripheral flange for fixing to the rim superior of said body.
  • said hollow rod and said core are made in one piece.
  • said hollow rod is separated from the core by transverse channels supplied by the conduit discharge.
  • said axial hollow rod is connected, externally to the dosing chamber, to a spray tube.
  • the spacer of the socket joint is arranged substantially opposite the outlet of the transverse channels and includes bodies.
  • the spray tube carries a peripheral shoulder delimiting an upper bearing face for the return means of the piston.
  • said shoulder extends towards the bottom by a cylindrical wall moving in a guided manner in said central sleeve of the collar which defines with said wall a housing for said return means.
  • the body has an orifice forming a vent located, in the high position of the piston, above the edge bottom of the socket.
  • said socket can be made to have a bevelled end ensuring a tight and scraping surface contact with the internal wall of the dosing chamber.
  • the lateral face of the core and the internal face opposite the socket are parallel and inclined by relative to the axis of the pump.
  • said core has a lower part frustoconical likely to be housed in a profile cavity complementary formed in the lower part of the body, under the level of the lower stop of the piston, to allow forced opening from the discharge pipe to the priming.
  • the pump of the invention has a very tight degree of tightness raised without the use of a joint, which makes it compatible on the olfactory level with perfumes and perfumed cosmetics.
  • the tightness obtained is such that the pump of the invention can be used inside out without causing any product leakage.
  • the assembly of the various components of the pump can be carried out in a simple and unique operation, which allows a complete automation of the manufacturing and conditioning and results in productivity gains.
  • piston return means are placed at the outside of the dosing chamber, which reduces the size of the part of the pump body internal to the container and pack more product in a container of the same volume.
  • the pump shown in Figure 1 is intended for the distribution of perfumes or cosmetic and pharmaceutical products from a container.
  • This pump comprises a substantially cylindrical body 1 internally delimiting a metering chamber 11.
  • the pump body 1 is intended to be sealed on the neck C of the container.
  • the lower end 1a of the body 1 is provided with an orifice inlet 10 fitted with a valve 12, here in the form of a ball.
  • the upper end 1 of the body 1 is made open for allow the introduction of a piston 2 and is provided with an orifice exhaust 20a.
  • the orifice 20a opens into a closable conduit 20 for the evacuation of the product from chamber 11.
  • the piston 2 is capable of moving in the chamber 11 between a high rest stop and a low end stop, in being returned to the rest position by a helical spring 4 disposed at outside of room 11.
  • the piston 2 comprises a central core 21 integral with the lower end 23a of an axial hollow rod 23 whose end upper 23b protrudes outside the chamber 11.
  • the rod 23 and the core 21 are made in one piece.
  • the core 21 is surrounded coaxially by a socket 22 made in the form of an insert and connected to the rod 23 via a elastic joint 24.
  • the core 21, the rod 23 and the socket 22 are made in one piece.
  • the socket 22 provides; a apart, a tight contact with the internal wall of the chamber 11 and delimits, on the other hand, with the core 21 the annular conduit 20
  • the socket 22 has a flared lower skirt 22a, the internal face, facing the core 21, is provided with a peripheral ring 220.
  • the rod 220 is intended to be in the closed position of the conduit 20 ( Figures 1 and 3), in sealed contact with the core 21.
  • the hollow rod 23 is separated from the core 21 by channels transverse 230 supplied by the exhaust duct 20.
  • the lateral face of the core 21 and the internal face opposite the bush 22 are parallel and inclined relative to the axis of the pump.
  • the articulation 24 comprises a central collar 24b mounted by radial tightening around the periphery of the hollow rod 23 above the core 21.
  • the collar 24b is connected to the sleeve 22 by a spacer 24a elastically deformable allowing the relative displacement of the socket 22 with respect to the core 21.
  • the socket 22 also includes an upper crown 22b which extends in the extension of the lower skirt 22a; the spacer 24a ensuring the separation between the skirt 22a and the crown 22b.
  • the upper part of the pump body 1 is closed by snap-fastening of a flange 3, the internal face of which forms the upper stop of the piston 2 and the external face serves as a lower support for the spring 4.
  • the collar 3 consists of a central sleeve 33 provided an axial bore 30 in which the axial hollow rod 23 moves, integral with the piston 2.
  • the collar 24b has a height substantially equal to that of bore 30, and the respective profiles of the upper edges of the bore and the collar are complementary.
  • the crown 22b of the sleeve 2 is, in the rest position of the pump shown in FIG. 1, engaged in sealed abutment in a peripheral groove 31 formed on the internal face of the collar 3.
  • the crown 22b has an internal face slightly inclined towards the axis of the pump while its external lateral face is substantially parallel to this axis.
  • the internal flank 31a of the groove 31, opposite the inner face of the crown 22b, has a slight curvature towards the axis of the pump to ensure sliding contact of the faces in vis-à-vis, one on the other and a guide of the crown 22b in the groove 31 towards the upper stop position.
  • the end of the internal flank 31a of the groove 31 is in abutment, with tight contact, against the upper face of the spacer 24.
  • the upper stop of piston 2 therefore corresponds to a double level seal against possible product infiltration which may occur through the vent hole 13, located above the bottom edge of the skirt 22a, in the high stop position of the piston 2.
  • the groove 31 forms a zone of retention allowing to collect the possible flows of product which penetrate inside the chamber 11 via the orifice 13.
  • the central sleeve 33 of the collar 3 is provided with a member 33a watertight latching in the upper part 1 of the body 1 and of a peripheral flange 33b for fixing on the upper edge of the body 1.
  • transverse channels 230 open laterally on the rod 23 and opposite the elbow 24c connecting the collar 24b and the spacer 24a of the joint 24.
  • Tube 5 carries a shoulder peripheral 51 which delimits an upper bearing face for the spring 4.
  • the shoulder 51 extends downward towards the flange 3, by a cylindrical wall 52 moving in a guided manner with a slight play in the central sleeve 33 which delimits with the wall 52, a housing 54 for the spring 4.
  • the skirt 22a of the socket 22 has a beveled end with an external face 220a which ensures a tight surface contact of the piston 2 with the internal wall of the metering chamber 11 during its trips.
  • chamber 11 is filled with product and the thrust is transmitted by the incompressible liquid product to the walls of the chamber 11 and in particular to the skirt 22a of the socket 22 articulated.
  • the socket 22 is the only movable element in the chamber 11.
  • the thrust exerted on the socket 22 then causes its upward movement along the inner wall of the chamber 11 by elastic deformation of the joint 24 (see FIG. 2b).
  • This displacement has the result of spreading the peripheral rod 220 from the lateral face of the core 21 and thus open the annular duct evacuation 20.
  • the peripheral ring 220 finds its support on the core 21 and thus closes the conduit 20.
  • the relaxation of the head T and of the nozzle tube 5 is accompanied by the relaxation of the spring 4, of the guided outlet of the wall 52 from the top of the sleeve 33 and the rise of piston 2 in chamber 11 in sucking product into the container through the orifice 10 via the valve 12 in open position.
  • Figures 4a and 4b relate to the priming phase of the pump.
  • the container R contains product but the dosage 11 contains only air.
  • the first descent of the piston 2 therefore has the effect of compress the air in room 11. From a determined value of overpressure, the sleeve 22 moves in translation upwards and the rod 220 moves away from the core 21 by opening the conduit 20.
  • the compressed air then escapes to the outside through the conduit 20, the channels 230, the rod 23, the tube 5 and the nozzle B.
  • All the air present in the chamber 11 is evacuated by opening forced from conduit 20 because the core 21 has a portion tapered lower 21a capable of being housed in the cavity 15 to additional profile located below the level of the bottom stop 14 of the piston 2.
  • the bottom stop of the piston 2 leaves the duct 20 open for a short time which corresponds to the time necessary for the degassing of the cavity 15.

Landscapes

  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Compressor (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Closures For Containers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Massaging Devices (AREA)
EP98928370A 1997-05-29 1998-05-28 Pompe a piston articule Expired - Lifetime EP0983123B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9706586A FR2764005B1 (fr) 1997-05-29 1997-05-29 Pompe a piston articule
FR9706586 1997-05-29
PCT/FR1998/001062 WO1998053917A1 (fr) 1997-05-29 1998-05-28 Pompe a piston articule

Publications (2)

Publication Number Publication Date
EP0983123A1 EP0983123A1 (fr) 2000-03-08
EP0983123B1 true EP0983123B1 (fr) 2003-03-05

Family

ID=9507368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98928370A Expired - Lifetime EP0983123B1 (fr) 1997-05-29 1998-05-28 Pompe a piston articule

Country Status (15)

Country Link
US (1) US6196424B1 (zh)
EP (1) EP0983123B1 (zh)
JP (1) JP2002500559A (zh)
CN (1) CN1107553C (zh)
AT (1) ATE233606T1 (zh)
AU (1) AU8023098A (zh)
BR (1) BR9809488A (zh)
CA (1) CA2291093C (zh)
DE (1) DE69811882T2 (zh)
DK (1) DK0983123T3 (zh)
ES (1) ES2194325T3 (zh)
FR (1) FR2764005B1 (zh)
HK (1) HK1027519A1 (zh)
PT (1) PT983123E (zh)
WO (1) WO1998053917A1 (zh)

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* Cited by examiner, † Cited by third party
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FR2766879B1 (fr) * 1997-08-01 1999-10-22 Sofab Perfectionnement d'un corps de pompe et procede de fabrication
FR2784717B1 (fr) * 1998-10-16 2001-12-07 Sofab Pompe de faible capacite a compatibilite amelioree
US6302101B1 (en) * 1999-12-14 2001-10-16 Daniel Py System and method for application of medicament into the nasal passage
FR2806330B1 (fr) * 2000-03-20 2002-10-25 Valois Sa Organe de distribution a clapet de sortie forme par un piston differentiel
WO2002068317A1 (en) * 2001-02-21 2002-09-06 Cohen Ben Z Accurate dosing pump and accessories therefor
EP1249278A1 (en) * 2001-04-10 2002-10-16 Taplast S.p.A. Dispensing pump
CN2483350Y (zh) * 2001-05-16 2002-03-27 丁要武 具有防进液气道的乳液泵
WO2002094708A1 (en) * 2001-05-23 2002-11-28 Cohen, Ben, Z. Accurate dosing pump
FR2838783B1 (fr) * 2002-04-17 2004-07-09 Valois Sa Pompe de distribution de produit fluide
FR2840888B1 (fr) * 2002-06-18 2004-09-10 Lablabo Dispositif de distribution de plusieurs fluides comportant au moins deux poches souples et deux pompes
EP1389491A1 (en) * 2002-08-13 2004-02-18 Yon Woo Corporation Airless dispenser pump
ATE322344T1 (de) * 2002-11-25 2006-04-15 Saint Gobain Calmar Sa Vordruckpumpe mit verringerter höhe
FR2847561B1 (fr) 2002-11-27 2005-08-19 Rexam Dispensing Sys Pompe suceptible d'obturer le col d'un flacon et conditionnement de produit a pulveriser comprenant ladite pompe et un flacon
FR2849000B1 (fr) * 2002-12-23 2005-07-08 Valois Sas Dispositif de distribution de produit fluide.
FR2852934B1 (fr) * 2003-03-27 2005-12-23 Rexam Dispensing Sys Distributeur de produit comprenant une pompe a actionnement par poussoir
JP4558500B2 (ja) * 2003-11-24 2010-10-06 レクサム ディスペンシング システムズ 瓶の首を閉じることが可能なポンプ、ならびに噴霧されるべき製品の、これらのポンプおよび瓶を備えるパッケージング
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KR100569180B1 (ko) * 2004-04-29 2006-04-10 주식회사 종우실업 소형 수동식 펌프
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CA2609486A1 (en) * 2005-05-27 2006-11-30 Yong-Soo Kim Dispenser
US20070045349A1 (en) * 2005-08-25 2007-03-01 Continental Afa Dispensing Company Liquid dispensing pump with shifting liquid piston
FR2910449B1 (fr) * 2006-12-22 2009-03-06 Rexam Dispensing Systems Sas Pompe compacte a capacite de rotulage du gicleur par rapport au piston.
FR2911640B1 (fr) * 2007-01-23 2012-09-21 Rexam Dispensing Sys Pompe pour distribuer une dose de produit fluide et gamme comprenant de telles pompes.
US20090008413A1 (en) 2007-04-17 2009-01-08 Choi Hee Jin Airless dispensing pump container with an airtight push down type nozzle head
ITRM20070288A1 (it) * 2007-05-25 2008-11-26 Emsar Spa Dispositivo dosatore per prodotti fluidi.
US8618164B2 (en) 2009-03-31 2013-12-31 Nuvo Research Inc. Treatment of pain with topical diclofenac compounds
ITMI20091648A1 (it) * 2009-09-25 2011-03-26 Modapack S R L "gruppo per la pressurizzazione e l'erogazione di sostanze fluide per una pompa ad azionamento manuale e pompa comprendente detto gruppo"
CN201579158U (zh) * 2009-12-21 2010-09-15 陈秋火 背吸式防滴漏喷头
US20110240677A1 (en) * 2010-03-03 2011-10-06 Walter Dwyer Airless double-piston double-action pump and cosmetics bottle dispensing device
US20110303702A1 (en) * 2010-06-11 2011-12-15 Derxin (Shanghai) Cosmetics Co., Ltd. Liquid spray head assembly
FR2961496B1 (fr) * 2010-06-16 2013-02-15 Rexam Dispensing Sys Systeme de distribution d'un produit fluide.
CA2815247A1 (en) * 2010-10-20 2012-04-26 Meadwestvaco Calmar, Inc. Precompression pump mechanisms
GB2491104A (en) * 2011-05-18 2012-11-28 Ya-Tsan Wang A push-type dispenser nozzle with the spring located outside the fluid path
GB2491576A (en) * 2011-06-03 2012-12-12 Ya-Tsan Wang A push-type dispenser nozzle with the spring located outside the fluid path
KR200464671Y1 (ko) 2011-08-29 2013-01-15 주식회사 아폴로산업 액체용기용 펌프디스펜서
CN102991839B (zh) * 2011-09-08 2016-04-20 丁要武 使用弹性体活塞的液体泵、活塞组件及其生产方法
US9415401B2 (en) * 2012-04-04 2016-08-16 Alternative Packaging Solutions Llc One turn actuated duration spray pump mechanism
CN102847627B (zh) * 2012-10-15 2015-04-15 深圳市博纳药品包装材料有限公司 一种流体制剂分配喷雾泵
US20140113970A1 (en) * 2012-10-22 2014-04-24 Mallinckrodt LLC Covidien Dispensing system
US9469061B2 (en) 2013-01-30 2016-10-18 Plas-Pak Industries Inc One-piece ventable piston for a dispensing apparatus, a dispensing apparatus with same, and method of making same
ITVI20130130A1 (it) * 2013-05-08 2014-11-09 Taplast Srl Dispositivo per l'erogazione di fluidi.
JP6172741B2 (ja) * 2013-05-14 2017-08-02 株式会社三谷バルブ 内容物放出用ポンプ機構およびこの内容物放出用ポンプ機構を備えたポンプ式製品
KR101590865B1 (ko) * 2014-08-28 2016-02-02 (주)연우 디스펜서 용기
DE202014009706U1 (de) 2014-12-10 2015-12-14 Gerhard Brugger Dosierspender
US10166563B2 (en) * 2016-01-08 2019-01-01 Silgan Dispensing Systems Corporation Pump systems, pump engines, and methods of making the same
WO2020165623A1 (en) * 2018-09-14 2020-08-20 Olegnovicz Israel Fluid seal having multiple diameters
CN109502190B (zh) * 2018-11-05 2023-07-07 浙江正庄实业有限公司 防紫外线低密度双管真空瓶及其制备方法
CN110436059B (zh) * 2019-07-31 2024-09-13 赫蕾雪(上海)科技有限公司 一种按压式干粉喷雾器
WO2021155449A1 (pt) * 2020-02-04 2021-08-12 Eric Zembrod Mecanismo premente para embalagens diversas extrator de produtos fluídicos
CN114056748A (zh) * 2020-07-31 2022-02-18 丁要武 具有弹性活塞的液体泵及其制造方法
KR102427023B1 (ko) * 2020-08-24 2022-07-29 주식회사 삼화 액체 분사를 위한 펌프
DE102022212076A1 (de) * 2022-11-15 2024-05-16 Henkel Ag & Co. Kgaa kosmetisches Produkt zur Sprühapplikation
CN116177028B (zh) * 2023-03-15 2024-06-21 兴必盛塑业(南通)有限公司 容器及其泵组件

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Also Published As

Publication number Publication date
ATE233606T1 (de) 2003-03-15
AU8023098A (en) 1998-12-30
HK1027519A1 (en) 2001-02-23
DK0983123T3 (da) 2003-07-14
CA2291093C (en) 2008-11-18
EP0983123A1 (fr) 2000-03-08
FR2764005A1 (fr) 1998-12-04
CN1107553C (zh) 2003-05-07
CN1258236A (zh) 2000-06-28
BR9809488A (pt) 2000-07-25
JP2002500559A (ja) 2002-01-08
WO1998053917A1 (fr) 1998-12-03
FR2764005B1 (fr) 2004-12-10
PT983123E (pt) 2003-07-31
DE69811882D1 (de) 2003-04-10
ES2194325T3 (es) 2003-11-16
CA2291093A1 (en) 1998-12-03
US6196424B1 (en) 2001-03-06
DE69811882T2 (de) 2004-03-18

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