EP1444046B1 - Ausgabepumpe für medien - Google Patents

Ausgabepumpe für medien Download PDF

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Publication number
EP1444046B1
EP1444046B1 EP02785589A EP02785589A EP1444046B1 EP 1444046 B1 EP1444046 B1 EP 1444046B1 EP 02785589 A EP02785589 A EP 02785589A EP 02785589 A EP02785589 A EP 02785589A EP 1444046 B1 EP1444046 B1 EP 1444046B1
Authority
EP
European Patent Office
Prior art keywords
pump
pump body
air
casing
pump according
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
EP02785589A
Other languages
English (en)
French (fr)
Other versions
EP1444046A2 (de
Inventor
Ludovic Petit
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 EP1444046A2 publication Critical patent/EP1444046A2/de
Application granted granted Critical
Publication of EP1444046B1 publication Critical patent/EP1444046B1/de
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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element
    • 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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke

Definitions

  • the present invention relates to a fluid dispenser pump, and a fluid dispenser device incorporating such a pump.
  • Fluid dispensing pumps are well known in the state of the art.
  • the present invention relates more particularly to pumps in which the return spring of the pump is not in contact with the product dispensed by this pump.
  • the spring is thus disposed in a chamber inside the pump body which is isolated from the product but which contains air.
  • the movable member of the pump that cooperates with this spring moves by compressing the spring and the presence of air can pose a problem on the ease or reliability of use of the pump .
  • the present invention therefore aims to provide a fluid dispenser pump that is safe and reliable to use, while being simple and inexpensive to manufacture and assemble.
  • the present invention therefore relates to a fluid dispensing pump, comprising a pump body containing a metering chamber defined between a high piston sliding in an upper part of the pump body and a low piston sliding in a lower part of the body. pump, said lower piston cooperating with a spring disposed in said lower portion of the pump body, the lower portion of the pump body having air intake means for the entry and / or exit of air at the same time.
  • actuation of the pump characterized in that the spring is isolated from any contact with the fluid, insulating means being provided to prevent the penetration of fluid into said air intake means.
  • DE 2 838 613 discloses a pump according to the preamble of claim 1.
  • said air intake means are formed by a hole made in the lower part of the pump body.
  • said isolation means comprise an outer envelope disposed around said pump body.
  • an air passage is defined between said envelope and said pump body, said air passage being connected to the vent hole of the pump.
  • the vent hole comprises a filter adapted to filter the incoming air.
  • said envelope is fitted around the pump body, said air passage being defined by at least one groove formed in the outer wall of the pump body and / or in the inner wall of the casing.
  • said casing comprises a radial flange forming the seal with a reservoir on which the pump is assembled.
  • said radial flange forms a neck seal.
  • said envelope comprises a sock forming a seal with the outer wall of the pump body.
  • said sock is elastically deformable to let air exiting the inside of the pump body through said air intake means.
  • the present invention further relates to a fluid dispenser device comprising a pump as defined above, said pump being mounted on a reservoir by means of a ring or fixing cap.
  • the pump of the present invention comprises a pump body 10 which defines a metering chamber 20 between a top piston 30 and a bottom piston 40.
  • the top piston 30 slides in an upper part of the pump body 11 and the bottom piston 40 slides. in a lower portion 12 of the pump body.
  • the low piston 40 is mounted floating inside the pump body and cooperates with a spring 50 which is mounted on a bottom wall of the pump body 10 and which forms the return spring of the pump.
  • this spring 50 is completely isolated from the fluid product which is distributed by the pump. This means that no product enters the spring chamber that is to say in the lower part of the pump body in which the spring is located.
  • the present invention provides for making air intake means 15 in the lower part 12 of the pump body to allow the entry and / or exit of air during actuation of the pump.
  • air intake means 15 are made in the form of a hole made in the lower part 12 of the pump body.
  • isolation means 60 are provided to prevent the penetration of fluid into the lower part of the pump body, to ensure that the spring 50 does not come into contact with the fluid.
  • the total absence of contact between the spring, generally metallic and the fluid to be dispensed is particularly important in the case of certain pharmaceutical products that may be altered by contact with this spring.
  • the insulating means 60 are advantageously made in the form of an outer envelope which is fitted around the pump body and which covers the hole 15 to prevent the fluid from entering it.
  • the outer casing has a shape identical to that of the pump body so that the fitting is made with a contact on the entire wall, an air passage 61 being however formed between the pump body 10 and the outer casing 60, this air passage being connected to the vent hole 100 of the pump.
  • the vent hole is disposed in the upper part of the pump, at the pump seal 80 which forms the seal between the pump and the fixing ring or cap 70, which is adapted to mount the pump on a tank (not shown).
  • the seal 80 is a filter seal, that is to say that the air that enters the pump for replacing the volume of product dispensed passes through said filter 80 which removes all bacteria and / or impurities that could affect the quality of the product.
  • the casing 60 comprises a radial flange 65 which is adapted to form the seal with the neck of the reservoir (not shown).
  • this radial flange 65 can even form the neck seal of the pump.
  • the vent hole 100 is directly connected to the air passage 61 made between the pump body and the outer casing 60, and it is therefore necessary to provide means for air passage, allowing this air venting to penetrate inside the pump.
  • This is preferably achieved by means of a sock 62 preferably made at the lower end of the outer shell 60, this sock forming on the one hand sealing with the outer wall of the pump body 10, but being elastically deformable to let air vent.
  • the present invention makes it possible to guarantee a total absence of contact between the return spring of the pump 50 and the fluid product, while allowing the pump to operate on and reliably since the air contained in the chamber of the spring 50 can freely move according to the movement of the low piston 40.
  • the insulation means in particular the outer casing provides a seal against the product inlet in contact with this spring, so that the objectives of the present invention are achieved by this very simple and inexpensive means constituted by the casing 60.
  • the present invention further limits the number of component parts to achieve the object of the invention.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
  • Closures For Containers (AREA)

Claims (11)

  1. Ausgabepumpe zur Ausgabe eines flüssigen Produkts, aufweisend ein Pumpengehäuse (10), das eine Dosierkammer (20) enthält, die zwischen einem oberen Kolben (30), der in einem oberen Teil (11) des Pumpengehäuses (10) gleitet, und einem unteren Kolben (40), der in einem unteren Teil (12) des Pumpengehäuses (10) gleitet, begrenzt ist, wobei der untere Kolben (40) mit einer Feder (50) zusammenwirkt, die in dem unteren Teil (12) des Pumpengehäuses (10) angeordnet ist, wobei der untere Teil (12) des Pumpengehäuses Mittel zur Aufnahme oder Abgabe von Luft (15) aufweist, die das Eintreten und/oder Austreten von Luft während der Betätigung der Pumpe ermöglichen, dadurch gekennzeichnet, dass die Feder (50) von jeglichem Kontakt mit dem flüssigen Produkt isoliert ist, wobei Isolierungsmittel (60) vorgesehen sind, um das Eindringen des flüssigen Produkts in die Mittel zur Aufnahme oder Abgabe von Luft (15) zu verhindern.
  2. Pumpe nach Anspruch 1, wobei die Mittel zur Aufnahme oder Abgabe von Luft (15) durch ein Loch gebildet sind, das in dem unteren Teil (12) des Pumpengehäuses (10) gebildet ist.
  3. Pumpe nach Anspruch 1 oder 2, wobei die Isolierungsmittel (60) eine äußere Hülle aufweisen, die um das Pumpengehäuse (10) angeordnet ist.
  4. Pumpe nach Anspruch 3, wobei ein Luftdurchgang (61) zwischen der Hülle (60) und dem Pumpengehäuse (10) begrenzt ist, wobei der Luftdurchgang (61) mit dem Luftloch (100) der Pumpe verbunden ist.
  5. Pumpe nach Anspruch 4, wobei das Luftloch (100) einen Filter (80) aufweist, der zum Filtern der eingehenden Luft geeignet ist.
  6. Pumpe nach Anspruch 4 oder 5, wobei die Hülle (60) um das Pumpengehäuse (10) aufgedrückt bzw. aufgeschrumpft ist, wobei der Luftdurchgang (61) durch mindestens eine Nut begrenzt ist, die in der Außenwand des Pumpengehäuses (10) und/oder in der Innenwand der Hülle (60) angeordnet ist.
  7. Pumpe nach einem der Ansprüche 3 bis 6, wobei die Hülle (60) einen Radialflansch (65) aufweist, der die Dichtigkeit mit einem Behälter, auf dem die Pumpe angebracht ist, bildet.
  8. Pumpe nach Anspruch 7, wobei der Radialflansch (65) eine Kragendichtung bildet.
  9. Pumpe nach einem der Ansprüche 3 bis 8, wobei die Hülle (60) ein kurzes Rohr (62) aufweist, das die Dichtigkeit mit der Außenwand des Pumpengehäuses (10) bildet.
  10. Pumpe nach Anspruch 9, wobei das kurze Rohr (62) elastisch verformbar ist, um Luft durchzulassen, die aus dem Inneren des Pumpengehäuses (10) durch die Mittel zur Aufnahme oder Abgabe von Luft (15) austritt.
  11. Ausgabevorrichtung für ein flüssiges Produkt, aufweisend eine Pumpe nach einem der vorhergehenden Ansprüche, wobei die Pumpe mittels eines Rings oder einer Befestigungskapsel (70) auf einem Behälter angebracht ist.
EP02785589A 2001-11-07 2002-11-06 Ausgabepumpe für medien Expired - Lifetime EP1444046B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0114407A FR2831876B1 (fr) 2001-11-07 2001-11-07 Pompe de distribution de produit fluide
FR0114407 2001-11-07
PCT/FR2002/003797 WO2003039756A2 (fr) 2001-11-07 2002-11-06 Pompe de distribution de produit fluide

Publications (2)

Publication Number Publication Date
EP1444046A2 EP1444046A2 (de) 2004-08-11
EP1444046B1 true EP1444046B1 (de) 2008-04-16

Family

ID=8869155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02785589A Expired - Lifetime EP1444046B1 (de) 2001-11-07 2002-11-06 Ausgabepumpe für medien

Country Status (8)

Country Link
US (1) US7172097B2 (de)
EP (1) EP1444046B1 (de)
JP (1) JP2005507986A (de)
CN (1) CN1281464C (de)
AU (1) AU2002350878A1 (de)
DE (1) DE60226163T2 (de)
FR (1) FR2831876B1 (de)
WO (1) WO2003039756A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2832079B1 (fr) * 2001-11-14 2004-07-30 Valois Sa Tete de distribution et distributeur de produit fluide comportant une telle tete de distribution
FR2892158B1 (fr) * 2005-10-17 2011-10-21 Valois Sas Pompe de distribution de produit fluide
FR2905941B1 (fr) * 2006-09-20 2011-02-11 Valois Sas Ensemble de distribution et distributeur de produit fluide comportant un tel ensemble de distribution
FR2906577A1 (fr) * 2006-10-03 2008-04-04 Hsih Tung Tooling Co Ltd Pompe avec tete d'entrainement par pression.
DE102008055609B4 (de) * 2008-11-03 2011-12-29 Thomas Magnete Gmbh Hubkolbenpumpe
FR2973015B1 (fr) * 2011-03-25 2013-04-26 Valois Sas Pompe de distribution de produit fluide.
CN102491247B (zh) * 2011-11-24 2014-08-27 广东山之风环保科技有限公司 一种输送化工原料的气压液体装置
CN103708091B (zh) * 2013-12-13 2016-08-17 中山市美捷时包装制品有限公司 一种喷雾效果好的双弹簧喷雾泵
DE102018100338A1 (de) * 2018-01-09 2019-07-11 Aero Pump Gmbh Austragvorrichtung zum Austragen von flüssigen Medien

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2838613A1 (de) * 1978-09-05 1980-03-13 Seltmann Hans Juergen Ausgabepumpe, insbesondere zum zerstaeuben von fluessigkeiten

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802490A (en) * 1954-08-16 1957-08-13 Lawrence T Ward Container filling spray valve
FR2300950A1 (fr) * 1975-02-12 1976-09-10 Valois Sa Valve doseuse du type aerosol
US5147073A (en) * 1991-02-11 1992-09-15 Spruhventile Gmbh Fluid pump dispenser for pharmaceutical use
US5217148A (en) * 1991-02-11 1993-06-08 Spruhventile Gmbh Pharmaceutical pump dispenser
CN1080689C (zh) * 1994-11-17 2002-03-13 株式会社吉野工业所 带有泡沫喷出泵的容器
FR2740114B1 (fr) * 1995-10-19 1998-01-02 Innovation Rech Plastique Sa Dispositif de conditionnement d'un produit avec bague de support d'une pompe manuelle de distribution en doses unitaires
FR2762589B1 (fr) * 1997-04-28 1999-07-16 Sofab Flacon de distribution pour liquide, creme ou gel comportant un dispositif filtrant de l'air entrant
GB2344857B (en) * 1998-12-15 2001-03-14 Bespak Plc Improvements in or relating to dispensing apparatus
FR2794727B1 (fr) * 1999-06-10 2001-08-24 Valois Sa Dispositif de distribution de produit fluide ameliore
GB2361229A (en) * 2000-04-14 2001-10-17 Presspart Mfg Ltd Metering valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2838613A1 (de) * 1978-09-05 1980-03-13 Seltmann Hans Juergen Ausgabepumpe, insbesondere zum zerstaeuben von fluessigkeiten

Also Published As

Publication number Publication date
EP1444046A2 (de) 2004-08-11
US20050079072A1 (en) 2005-04-14
FR2831876A1 (fr) 2003-05-09
DE60226163T2 (de) 2008-11-13
US7172097B2 (en) 2007-02-06
FR2831876B1 (fr) 2004-04-23
DE60226163D1 (de) 2008-05-29
WO2003039756A2 (fr) 2003-05-15
CN1578748A (zh) 2005-02-09
CN1281464C (zh) 2006-10-25
AU2002350878A1 (en) 2003-05-19
WO2003039756A3 (fr) 2003-10-02
JP2005507986A (ja) 2005-03-24

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