EP1881936B1 - Dispositif pour la delivrance et l'admission d'un produit liquide - Google Patents

Dispositif pour la delivrance et l'admission d'un produit liquide Download PDF

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Publication number
EP1881936B1
EP1881936B1 EP06726250.1A EP06726250A EP1881936B1 EP 1881936 B1 EP1881936 B1 EP 1881936B1 EP 06726250 A EP06726250 A EP 06726250A EP 1881936 B1 EP1881936 B1 EP 1881936B1
Authority
EP
European Patent Office
Prior art keywords
piston
membrane
chamber
wall
skirt
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.)
Not-in-force
Application number
EP06726250.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1881936A1 (fr
Inventor
David Leuliet
François NICOLLE
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 Dispensing Systems 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 Rexam Dispensing Systems SAS filed Critical Rexam Dispensing Systems SAS
Publication of EP1881936A1 publication Critical patent/EP1881936A1/fr
Application granted granted Critical
Publication of EP1881936B1 publication Critical patent/EP1881936B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering
    • B65D83/54—Metering valves ; Metering valve assemblies
    • 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
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • 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
    • B05B11/1061—Pump priming means

Definitions

  • the invention relates to a device for the delivery and admission of a liquid product, or semi-liquid, preferably pharmaceutical or cosmetic, via a metering chamber of a pump body.
  • Such devices are usually designed for the dosed distribution of liquid product, and to seal the neck of a vial containing said liquid product to be delivered.
  • devices of this type forming a pump and comprising a pump body, a fixed piston mounted in the pump body, a variable volume metering chamber in which the end of the piston opens, the chamber communicating with the outside by an exhaust valve enclosed in a push button and whose actuation allows the delivery of a dose of product. Furthermore, the end of the piston is closed by a valve or a second inlet valve of the liquid product in the chamber.
  • the pump when such devices are implemented on bottles without air intake, for example with deformable walls, the pump must have a suction power necessary to reduce the volume of the container. This requirement is difficult to meet, and this can prevent the accuracy of doses of delivered products.
  • the known devices have problems with the priming of the pump. Indeed, by design, it is difficult to evacuate the air in the metering chamber before a first use of the dispenser.
  • the present invention overcomes the disadvantages of such pumps.
  • It relates in particular to a device designed to be implemented independently on a bottle with an upgradable capacity, that is to say a flexible bottle, or deformable bag, or on a mobile scraper bottle, or on a bottle rigid to constant capacity, requiring or not a return air.
  • the device according to the invention comprises a piston which is fixedly mounted in the pump body and which has an end sealingly engaged in the chamber, the end of the piston being capped with an elastically deformable membrane.
  • the device according to the invention ensures the evacuation of the air contained in the chamber, which allows the priming of the pump before a first use.
  • the boss consists of at least one axial rib projecting on the inner wall of the chamber.
  • the underside of the transverse wall of the membrane advantageously comprises an annular bead centered on the central orifice, and bearing against the element projecting from the end of the piston in the closed position of the valve.
  • the device according to the invention comprises a connecting element of the piston to the pump body, provided with a retaining bearing of the membrane.
  • the retaining bearing comprises latching means of the skirt of the membrane.
  • the detent means preferably consist of a peripheral groove formed in the side wall of the element and cooperating with a snap ring carried by the inner wall of the skirt.
  • the connecting element is an independent piece, designed to be attached to the lower part of the pump body.
  • the connecting element carries a transverse wall forming a bottom, intended to close the body at the bottom.
  • the connecting element comprises a cylindrical bore in which is fitted a product gripping tube.
  • the connecting element preferably comprises an axial supply duct communicating at the bottom with the cylindrical bore.
  • the connecting element has a peripheral shoulder against which the lower edge of the skirt of the membrane abuts.
  • the peripheral sealing lip is made in the vicinity of the peripheral shoulder. This makes it possible to reinforce the tightness of the device by limiting any radial movement of the membrane, which can off-set the protruding element with respect to the central orifice of the membrane.
  • the device according to the invention comprises an expansion cavity in which is housed the element projecting from the end of the piston. This cavity is being sealed at the bottom by the projecting element and at the top by the membrane.
  • the projecting element consists of a ball movable between a closed position of the valve and an open position where it allows the liquid product to enter the chamber.
  • the device according to the invention comprises centering elements of the element projecting in the axis of the supply orifice.
  • the device according to the invention ensures not only an easy and quick priming of the pump before a first use, but also a perfect seal between the end of the piston and the metering chamber, independently of the support force and how it is exerted by the user on the push button, or the area of the push button on which the user presses to operate the pump.
  • the device of the invention finds a particularly efficient application in the field of pump sprayers whose nozzle cooperates with a needle valve end.
  • the device which will now be described is particularly suitable for the delivery of a pharmaceutical product, of the drug type, contained in a reservoir bottle.
  • the figure 1 illustrates a first embodiment of the device according to the invention
  • the Figures 3 to 8 illustrate a second embodiment.
  • the device according to the invention is designed to deliver a dose of liquid or semi-liquid product via a metering chamber 1 of a pump body 2.
  • the pump body 2 comprises a hollow cylinder 21, of such dimensions that it can accommodate the device according to the invention.
  • the hollow cylinder 21 is open at a first end to accommodate an exhaust system, not shown in detail in the figures, which is equipped in particular with a push button 22 and which comprises the metering chamber 1.
  • the push button 22 is mounted movably in displacement between a depressed position and a high rest position in a guide sleeve 23 connected to the hollow cylinder 21 of the pump body 2.
  • a spring 24 working in compression in the sleeve 23 here provides the elastic return of the push button 22 from its depressed position to its rest position.
  • the first end of the hollow cylinder 21 has a flange 26 for hooking on the neck of a reservoir flask.
  • An annular seal 27 is optionally provided under the attachment flange 26 to seal the neck of the flask.
  • an outer ring 28 here serves to crimp the pump on the reservoir bottle.
  • a second end of the cylinder 21 of the pump body is closed around a conduit 25 for connecting the end of a receptacle tube 76 of liquid product contained in the reservoir bottle on which the pump is mounted.
  • the piston 3 which is fixedly mounted in the lower part of the pump body 2, has an upper end 31 sealingly engaged in the chamber 1.
  • the end 31 of the piston is capped with an at least partially elastically deformable membrane 4, which is more particularly represented on the figure 2 .
  • the membrane 4 comprises, on the one hand, a deformable transverse wall 41 forming an intake valve being provided with a central supply orifice 42, able to be closed in a sealed manner by a projecting element 5 forming a seat of the valve at the end of the piston 3 (see figure 3 ).
  • the membrane 4 comprises a cylindrical mounting skirt 43, provided with at least one, and here two peripheral sealing lips 44, in sliding contact with the inner wall of the chamber 1.
  • the skirt 43 may be made of a different material that is more rigid than that of the wall 41.
  • peripheral lips are made in the lower part of the cylindrical skirt of the membrane, to ensure an optimum seal that will be more explicitly detailed later.
  • the membrane 4 allows the introduction of the liquid product into the metering chamber 1, when it creates a vacuum in this chamber 1. Indeed, its deformable character of the wall 41 allows it to lift away from the protruding element under the pressure of the liquid, releasing the orifice 42 and thus allowing the liquid to enter the metering chamber.
  • the skirt 43 forms a valve by deformation of at least the lips 44 in contact with a boss 6 carried by the inner wall of the chamber 1, to release the compressed air by said piston 3 in the chamber 1 at priming of the pump.
  • the boss here consists of at least one axial rib 6 projecting on the inner wall of the chamber 1.
  • the axial rib 6 comprises a channel 61 which is longitudinal and of very small section, allowing the passage of the air removed from the metering chamber 1 at the priming of the pump.
  • the figure 4 shows in particular the shape that takes the membrane 4 when the piston 3 is pressed into the metering chamber.
  • the rib 6 crushes the sealing lips 44, without causing leakage of the liquid product. Indeed, the support contact between the groove 6 and the lips 44 does not create any passage for the liquid. Only the channel 61 forming capillary ensures the escape of the compressed air in the initial phase of priming of the pump, said exhaust being effected by bypassing the sealing lips 44 and towards the outside of the chamber 1.
  • the lower face of the transverse wall 41 comprises an annular bead 45 centered on said central orifice 42, and bearing against the element projection 5.
  • the device according to the invention comprises an element 7 ensuring the connection of the piston 3 to the pump body 2.
  • the connecting element 7 is provided with a bearing 71 for retaining the membrane 4.
  • the retaining bearing 71 comprises latching means of the skirt 43 of the membrane 4. These latching means consist of a peripheral groove 72, formed on the lateral wall of the element 7 and cooperating with a snap ring 73 carried by the inner wall of the skirt 43.
  • the connecting element 7 is here embodied as an independent part of the pump body 2, which is designed to be introduced through the upper opening and housed in the lower part of said body.
  • the connecting element 7 comprises a base 74 made in the form of a disk, to ensure the positioning and the coaxial wedging of the element.
  • the connecting element 7 could be attached to the lower part of the pump body 2, so that the transverse wall 74 would form a bottom closing said body 2 at the bottom.
  • the connecting element 7 comprises, in the lower part, a cylindrical bore 75 into which the tube 76 for gripping the liquid product ( figures 1 and 4 ).
  • the connecting element 7 comprises, in the upper part, an internal duct 77 for supplying the chamber 1 with product, the supply duct communicating with the cylindrical bore 75 ( figures 1 , 4 and 5 ).
  • the connecting element 7 also has a peripheral shoulder 78 against which the lower edge of the skirt 43 of the membrane 4 abuts.
  • an expansion cavity 8 is provided at the end of the piston 3 under the membrane 4, the cavity 8 being hermetically sealed by the projecting element 5 and the membrane 4.
  • the liquid product is introduced into this cavity before entering the metering chamber 1.
  • the projecting element 5 of the end of the piston 3 is housed in the cavity 8.
  • the projecting element 5 consists of a movable ball 5, resting between centering elements 51 in the closed position of the valve.
  • the upper end of the supply duct 77 is made in such a way that it forms a bowl 9 ( figure 1 ) in the form of a truncated cone for supporting and centering the ball 5.
  • the ball in the closed position of the valve, closes both the end of the supply duct 77 and the orifice of the membrane 4. It is thus immobilized between the bowl and the membrane. Thus, the ball prevents any entry of the liquid into the cavity 8, and any liquid inlet into the metering chamber.
  • the upper end of the connecting element 7 comprises crenellations delimited here by two lugs 52 carried by the bearing 71, intended to extend the conduit 77.
  • the tabs 52 hold the projecting element 5 centered in the axis of the leads 77 and away from its end.
  • the projecting element 5 is then in the form of a solid cylinder whose diameter is substantially equal to, or slightly greater than, the separation distance of the two lugs 52, so that the projecting element is immobilized between the two legs 52.
  • the liquid can be introduced into the expansion cavity 8.
  • Figures 6 to 8 illustrate each sectional view of the end of the piston along several transverse planes. These figures illustrate each zone occupied by the liquid when the projecting element 5 closes the orifice 42 of the membrane 4.
  • the figure 8 is a sectional view along the plane CC indicated on the figure 5 .
  • the figure 8 shows the fluid (grayed) occupying the supply duct 77.
  • the figure 7 is a sectional view along the plane DD indicated in figure 5 . This figure shows that the liquid occupies the entire free volume of the cavity 8 located under the projecting element 5 and on either side of the projecting element 5, between the centering tabs 52.
  • figure 6 is a sectional view according to the EE plane indicated in figure 5 . This figure shows that the liquid occupies the entire free volume of the cavity 8 located on either side of the projecting element 5, between the centering tabs 52.
  • the centering tabs 52 ensure that the projecting element 5 is always centered on the axis of the supply duct 77, and also on the axis of the orifice 42, to ensure a smooth flow of the liquid and an optimum seal at the orifice 42 of the membrane 4.
  • the position of the peripheral sealing lips 44 on the skirt 43 of the membrane 4 reinforces the sealing capacity of the membrane. Indeed, the more these lips 44 are at a level close to the shoulder 78, and the risk of displacement and misalignment of the membrane 4 relative to the axis of the supply duct is reduced.
  • the maximum sealing is ensured by the combination of the sealing lips 44 positioned in the vicinity of the shoulder 78, on the one hand, and the centering elements 51 (or 52) of the projecting element 5 forming a seat from the valve to the end of the piston, on the other hand.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)
EP06726250.1A 2005-05-20 2006-03-14 Dispositif pour la delivrance et l'admission d'un produit liquide Not-in-force EP1881936B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0551309A FR2885890B1 (fr) 2005-05-20 2005-05-20 Dispositif pour la delivrance et l'admission d'un produit liquide
PCT/FR2006/050228 WO2006123074A1 (fr) 2005-05-20 2006-03-14 Dispositif pour la delivrance et l'admission d'un produit liquide

Publications (2)

Publication Number Publication Date
EP1881936A1 EP1881936A1 (fr) 2008-01-30
EP1881936B1 true EP1881936B1 (fr) 2013-05-15

Family

ID=35520828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06726250.1A Not-in-force EP1881936B1 (fr) 2005-05-20 2006-03-14 Dispositif pour la delivrance et l'admission d'un produit liquide

Country Status (6)

Country Link
US (2) US7866513B2 (ja)
EP (1) EP1881936B1 (ja)
JP (1) JP4966966B2 (ja)
CN (1) CN101180225B (ja)
FR (1) FR2885890B1 (ja)
WO (1) WO2006123074A1 (ja)

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EP2218515B1 (fr) 2009-02-06 2011-11-23 Rexam Healthcare La Verpillière Dispositif pour la délivrance d'un produit comportant une membrane formant valve anti-retour
FR2942511B1 (fr) * 2009-02-23 2015-04-17 Coutier Moulage Gen Ind Dispositif d'injection d'un produit additif dans le systeme d'echappement d'un vehicule automobile.
FR2961191B1 (fr) * 2010-06-10 2012-07-27 Rexam Healthcare La Verpillier Pompe pour la delivrance d'un produit, comportant un piston coulissant dans une chambre de dosage
BR112014029234B1 (pt) * 2012-05-25 2020-06-16 Vitop Moulding S.R.L. Sistema para o esvaziamento controlado de líquidos de recipientes
GB2507313B (en) * 2012-10-25 2015-09-30 Tristel Plc Pump apparatus
US9298195B2 (en) * 2012-11-14 2016-03-29 Rostra Vernatherm, Llc Thermally actuated power element with integral valve member
US9266134B2 (en) * 2012-12-11 2016-02-23 Gojo Industries, Inc. Vented check valves, pumps and refill units with vented check valves
FR2999960B1 (fr) * 2012-12-20 2015-02-27 Aptar France Sas Distributeur de produit fluide rechargeable.
MX368118B (es) * 2013-03-14 2019-09-19 Deka Products Lp Sistema de suministro de producto.
FR3013614B1 (fr) 2013-11-26 2018-03-23 Nemera La Verpilliere Pompe avec reprise d'air
US9648992B2 (en) 2013-12-19 2017-05-16 Gojo Industries, Inc. Pumps with vents to vent inverted containers and refill units having non-collapsing containers
EP3110561B1 (en) 2014-02-24 2019-06-26 Gojo Industries, Inc. Vented non-collapsing containers, refillable refill containers, dispensers and refill units
CA2956212C (en) 2014-07-30 2023-03-28 Gojo Industries, Inc. Vented refill units and dispensers having vented refill units
WO2019182745A1 (en) 2018-03-19 2019-09-26 Bryn Pharma, LLC Epinephrine spray formulations
CN109011052B (zh) * 2018-08-15 2024-09-03 佛山市第一人民医院（中山大学附属佛山医院） 一种新型鼻用喷雾器
CN110236436A (zh) * 2019-07-05 2019-09-17 沛乐迪(厦门)卫浴有限公司 一种按压式给皂器的皂液泵结构

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Also Published As

Publication number Publication date
FR2885890A1 (fr) 2006-11-24
JP4966966B2 (ja) 2012-07-04
US8430275B2 (en) 2013-04-30
WO2006123074A1 (fr) 2006-11-23
JP2008540010A (ja) 2008-11-20
CN101180225B (zh) 2010-07-14
EP1881936A1 (fr) 2008-01-30
FR2885890B1 (fr) 2007-07-20
US7866513B2 (en) 2011-01-11
US20080116227A1 (en) 2008-05-22
US20110089198A1 (en) 2011-04-21
CN101180225A (zh) 2008-05-14

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