EP0477083A1 - Vordruck-Handpumpe - Google Patents

Vordruck-Handpumpe Download PDF

Info

Publication number
EP0477083A1
EP0477083A1 EP91402457A EP91402457A EP0477083A1 EP 0477083 A1 EP0477083 A1 EP 0477083A1 EP 91402457 A EP91402457 A EP 91402457A EP 91402457 A EP91402457 A EP 91402457A EP 0477083 A1 EP0477083 A1 EP 0477083A1
Authority
EP
European Patent Office
Prior art keywords
valve
pump
cylinder
integral
pump 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.)
Granted
Application number
EP91402457A
Other languages
English (en)
French (fr)
Other versions
EP0477083B1 (de
Inventor
Claude Jouillat
Michel Brunet
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.)
Societe Technique de Pulverisation SA STEP
Original Assignee
Societe Technique de Pulverisation SA STEP
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 Societe Technique de Pulverisation SA STEP filed Critical Societe Technique de Pulverisation SA STEP
Publication of EP0477083A1 publication Critical patent/EP0477083A1/de
Application granted granted Critical
Publication of EP0477083B1 publication Critical patent/EP0477083B1/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
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B05B11/00411—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 the means being an inert gas
    • 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 manual precompression pump for spraying or dispensing a fluid product such as a liquid or a pasty product, for example a perfume, a cosmetic product or a pharmaceutical product.
  • a fluid product such as a liquid or a pasty product, for example a perfume, a cosmetic product or a pharmaceutical product.
  • FIG. 1 attached shows an example of such a pump, disclosed in particular in French patents no. 2,305,241 and 2,314,772 and in US Pat. No. 4,025,046.
  • the pump comprises a hollow pump body 1 having an axis of revolution, provided with an annular bottom pierced with a central orifice 1b and extended externally by a cylindrical side wall extending vertically upward to an upper end.
  • a narrowed tubular part 1c extends vertically downward from the bottom 1a, and a tubular endpiece 4 extends vertically upward from said bottom 1a, to an upper end of said endpiece 4.
  • the endpiece 4 is of diameter and height respectively smaller than the diameter and the height of the side wall of the pump body.
  • the pump body 1 is mounted on a neck of a container (not shown) containing a product to be sprayed or dispensed, and fixed by any suitable means, for example using a crimped metal cap.
  • the narrowed tubular part 1c is located inside the container, and a dip tube 5 can optionally be fitted into said tubular part 1c.
  • a piston 2 is slidably mounted inside the pump body 1.
  • the piston 2 is hollow and has the same axis of revolution as the pump body 1.
  • the piston 2 conventionally comprises at least one outer peripheral sealing lip 2a applied elastically against the cylindrical side wall of the pump body 1.
  • the piston is extended vertically upwards by a hollow rod 3, to an upper end of said rod.
  • the rod 3 has a central channel 3a, which extends between a lower end of said channel and the upper end of the rod.
  • the pump also comprises a valve 6 also having the same axis of revolution as the pump body 1.
  • the valve 6 comprises a needle 7, intended to close the lower end of the channel 3a forming a seat 7a of the needle, and a cylindrical skirt 8 extending vertically downwards to a lower end, said skirt 8 being able to be fitted on the tubular endpiece 4 of the pump body.
  • the skirt 8 is guided in its movement by vertical outer ribs 8a sliding against the side wall of the pump body.
  • the lower end of the skirt has an inner peripheral sealing lip 8a, so as to provide a seal with the tubular end piece 4 when the skirt is fitted onto said end piece 4
  • the pump is closed by an attached ferrule 11, inside which slides the hollow rod 3, and which is fixed to the pump body, for example by ultrasonic welding or by other known means.
  • the ferrule 11 thus constitutes a stop greater than the movement of the piston in the pump body.
  • the spring 10 applies the piston against the ferrule 11, by means of the needle 7.
  • the skirt 8 of the valve is released from the tubular end piece 4, so that an annular passage 13 is open between these two rooms.
  • the pump thus constituted delimits a pump chamber 12, between the tubular endpiece 4 and the side wall of the pump body 1. To explain the operation of the pump, we will assume this pump chamber filled with product to be dispensed or sprayed.
  • the spring 10 pushes the valve 6 upwards, at the same time driving the piston 2.
  • the pump chamber 12 is isolated by fitting the the skirt 8 on the tubular end piece 4, and by application of the needle 7 on its seat 7a.
  • the rise of the piston 2 therefore creates a depression.
  • the skirt 8 emerges from the nozzle 4, by opening the annular passage 13. Under the effect of the vacuum prevailing in the pump chamber 12, the product contained in the dip tube 5 and the container is sucked towards said pump chamber, which is refilled.
  • the inner sealing lip 8a produced on the lower end of the skirt 8 could be replaced by an outer sealing lip on the upper end of the tubular end piece 4.
  • the pump could have a side wall of the pump body comprising a cylindrical lower part of reduced diameter, above the bottom 1a , in which would be fitted a cylinder integral with the valve 6.
  • a sealing lip could be provided either on the lower part of reduced diameter of the pump body, or on the cylinder integral with the valve 6, in order to perfect the tightness of the fitting between these two parts.
  • the pump of the type which has just been described can be used with a sealed container in which the product to be sprayed or dispensed is kept under pressure by a dissolved (freon) or undissolved (nitrogen) gas.
  • a dissolved (freon) or undissolved (nitrogen) gas may be used to keep the product away from air, to prevent it from being polluted or oxidized.
  • the gas can be used to facilitate priming of the pump and to ensure a more complete and faster filling of the pump chamber. In this mode of use, there is a difficulty in introducing the propellant gas into the container after said container has been filled with product and the pump has been put in place and fixed.
  • the separation of the needle from its seat 7a frees a first passage between the pump chamber and the channel 3a, and the passage of the sealing lip 8a over the external reliefs 14 of the end piece releases a second passage between the pump chamber and the container.
  • the gas can then be introduced into the container through the channel 3a.
  • the needle 7 is generally given a considerable length, so that its seat 7a is located near the upper end of the rod 3.
  • the valve 6 is generally made in one piece, in a fairly flexible material such as low density polyethylene, this large length of the needle 7 can cause significant plastic or elastic deformations during successive actuations of the pump. These deformations modify the relative positioning of the valve 6 relative to the piston 2 and to the rod 3, and therefore modify the dose of product emitted at each actuation of the pump.
  • the object of the present invention is precisely to avoid these drawbacks.
  • the cylinder secured to the pump body and the cylinder secured to the valve can be separated at rest by the distance H2 greater than H1, or else one of the cylinders which fits one on the other has substantially longitudinal grooves at its end close to the other cylinder, over a length such that from the rest position of the valve, the cylinder secured to the valve can be brought closer to the cylinder secured to the pump body by a distance H2 greater than H1 without the fitting one on the other of the two cylinders does not become tight.
  • the valve may include a needle applied elastically against said valve seat to close the hollow rod.
  • the needle may have a peripheral sealing lip applied elastically against the valve seat, or the valve seat may have a peripheral sealing lip on which the needle is applied elastically.
  • FIG. 3 represents a manually operated precompression pump of the type already described above with reference to FIGS. 1 and 2, further integrating certain characteristics specific to the invention.
  • the references of the elements already described above are unchanged, and their description will not be repeated here.
  • the valve 6 is modified compared to the previous description.
  • the needle 7 is extended vertically upwards by a rod 7b extending through the channel 3a and projecting from a height H1 above the upper end of the hollow rod 3.
  • the tubular endpiece 4 is shorter than in FIG. 2, so that when the valve 6 descends into the pump body 1, it first describes a dead stroke of length H2 greater than H1, during which the annular space 13 between the skirt 8 and the end piece 4 remains open.
  • the high position of the seat 7a of the needle further facilitates the molding of the part constituting the rod and the piston, minimizing the length of the channel 3a, of small section, therefore difficult to mold.
  • the positioning finger 9 of the spring is molded from flexible material, with the second part. But it could also be achieved by an extension of the first part, made of rigid material.
  • the needle 7 is not likely to deform, thanks to its rigidity, and the skirt 8 can play its sealing role thanks to its flexibility.
  • FIG. 4 represents a variant of the pump of FIG. 3, in which the tubular endpiece 4 is not shortened, but has substantially axial external grooves 15 so as to obtain a dead stroke of the valve 6 of the same height H2 as previously, during which the pump chamber 12 continues to communicate with the container via the grooves 15.
  • the operation of this pump is therefore identical to the operation of the pump in FIG. 3.
  • the needle 7 may have a peripheral sealing lip 16 applying against the seat 7a of the needle, so as to achieve a perfect seal.
  • the sealing lip 16a could equally well be produced on the seat 7a of the needle, as shown in FIG. 6.
  • the valve 6 of which comprises a skirt 8 fitting onto a nozzle 4 protruding from the bottom 1a of the pump body, to isolate the pump chamber 12 from the container of product.
  • This isolation could also be achieved by fitting a cylinder integral with the valve in a cylindrical lower part of reduced diameter of the pump body, without departing from the scope of the present invention.
  • the pump chamber is therefore isolated from the container by the fitting of two cylinders one on the other, a first cylinder being integral with the valve 6, and a second cylinder being integral with the pump body 1.
  • the sealing lip 8a can be disposed on either of these cylinders, without departing from the scope of the present invention.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP91402457A 1990-09-17 1991-09-16 Vordruck-Handpumpe Expired - Lifetime EP0477083B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9011465A FR2666852B1 (fr) 1990-09-17 1990-09-17 Pompe manuelle a precompression.
FR9011465 1990-09-17

Publications (2)

Publication Number Publication Date
EP0477083A1 true EP0477083A1 (de) 1992-03-25
EP0477083B1 EP0477083B1 (de) 1993-08-25

Family

ID=9400388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402457A Expired - Lifetime EP0477083B1 (de) 1990-09-17 1991-09-16 Vordruck-Handpumpe

Country Status (4)

Country Link
US (1) US5261573A (de)
EP (1) EP0477083B1 (de)
DE (1) DE69100307T2 (de)
FR (1) FR2666852B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019230A1 (de) * 1994-01-14 1995-07-20 Ursatec Verpackung Gmbh Saug-druckpumpe für fluidbehälter
FR2754316A1 (fr) * 1996-10-04 1998-04-10 Teleplastics Ind Pompe a precompression pour la distribution de doses liquides et distributeur la comportant
WO1999058415A1 (en) * 1998-05-13 1999-11-18 Color Access, Inc. Pump package
WO1999059728A1 (es) * 1998-05-18 1999-11-25 Calmar-Monturas, S.A. Bomba pulverizadora

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697530A (en) * 1996-01-29 1997-12-16 Monturas, S.A. Precompression pump sprayer
US5839617A (en) * 1997-07-29 1998-11-24 Owens-Illinois Closure Inc. Pump dispenser
WO1999059729A1 (es) * 1998-05-18 1999-11-25 Calmar-Monturas, S.A. Bomba para pulverizacion
EP1207963A1 (de) * 1999-09-03 2002-05-29 Coster Tecnologie Speciali S.P.A. Abgabepumpe für die abgabe von flüssigkeiten, gelen oder dgl. medien
US7124788B2 (en) * 2003-07-10 2006-10-24 Precision Valve Corporation Means and method for filling bag-on-valve aerosol barrier packs
GB0420529D0 (en) * 2004-09-16 2004-10-20 3M Innovative Properties Co Valve stems for metered dose dispensing valves
FR3003241B1 (fr) * 2013-03-14 2016-02-12 Vuitton Louis Sa Dispositif rechargeable de conditionnement et de distribution d'un produit fluide
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
CN104888993B (zh) * 2015-04-03 2017-12-29 余姚市特力喷雾器有限公司 微型喷雾泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620052A1 (fr) * 1987-09-09 1989-03-10 Valois Vaporisateur du type pompe manuelle a precompression pour utilisation avec un gaz propulseur
FR2626851A1 (fr) * 1988-02-05 1989-08-11 Step Soc Tech Pulverisation Dispositif pour faciliter le remplissage des vaporisateurs
FR2632359A1 (fr) * 1988-06-06 1989-12-08 Step Soc Tech Pulverisation Dispositif d'amorcage pour pompe-doseuse a precompression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873383A (en) * 1959-12-08 1961-07-26 Goldwell Ges Mit Beschraenkter Improvements in dispensers for pressurised liquids
GB1056382A (en) * 1964-01-10 1967-01-25 Calor Gas Distributing Ltd Improvements in dispensing and filling devices for fluid containers
GB1435362A (en) * 1973-05-23 1976-05-12 Aerosol Inventions Dev Valves for pressurised dispensers
JPS5248115A (en) * 1975-10-15 1977-04-16 Maruichi Seisakusho:Kk Pump type spray valve
FR2623875B1 (fr) * 1987-11-30 1990-04-27 Valois Dispositif pour le remplissage en gaz d'un recipient aerosol au travers d'une pompe sertie sur ce recipient
FR2631564B1 (fr) * 1988-05-18 1990-08-17 Step Soc Tech Pulverisation Pompe-doseuse perfectionnee pour pulverisateurs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620052A1 (fr) * 1987-09-09 1989-03-10 Valois Vaporisateur du type pompe manuelle a precompression pour utilisation avec un gaz propulseur
FR2626851A1 (fr) * 1988-02-05 1989-08-11 Step Soc Tech Pulverisation Dispositif pour faciliter le remplissage des vaporisateurs
FR2632359A1 (fr) * 1988-06-06 1989-12-08 Step Soc Tech Pulverisation Dispositif d'amorcage pour pompe-doseuse a precompression

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019230A1 (de) * 1994-01-14 1995-07-20 Ursatec Verpackung Gmbh Saug-druckpumpe für fluidbehälter
FR2754316A1 (fr) * 1996-10-04 1998-04-10 Teleplastics Ind Pompe a precompression pour la distribution de doses liquides et distributeur la comportant
WO1999058415A1 (en) * 1998-05-13 1999-11-18 Color Access, Inc. Pump package
AU749942B2 (en) * 1998-05-13 2002-07-04 Color Access, Inc. Pump package
WO1999059728A1 (es) * 1998-05-18 1999-11-25 Calmar-Monturas, S.A. Bomba pulverizadora

Also Published As

Publication number Publication date
DE69100307T2 (de) 1994-05-19
US5261573A (en) 1993-11-16
DE69100307D1 (de) 1993-09-30
EP0477083B1 (de) 1993-08-25
FR2666852B1 (fr) 1992-12-18
FR2666852A1 (fr) 1992-03-20

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