EP0774423A1 - Joint de soupape pour récipients de distribution pressurisés - Google Patents

Joint de soupape pour récipients de distribution pressurisés Download PDF

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Publication number
EP0774423A1
EP0774423A1 EP96308185A EP96308185A EP0774423A1 EP 0774423 A1 EP0774423 A1 EP 0774423A1 EP 96308185 A EP96308185 A EP 96308185A EP 96308185 A EP96308185 A EP 96308185A EP 0774423 A1 EP0774423 A1 EP 0774423A1
Authority
EP
European Patent Office
Prior art keywords
container
liquid
seal member
dispensing apparatus
valve
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.)
Withdrawn
Application number
EP96308185A
Other languages
German (de)
English (en)
Inventor
David John Howlett
David Charles Bell
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.)
Consort Medical PLC
Original Assignee
Bespak PLC
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 Bespak PLC filed Critical Bespak PLC
Publication of EP0774423A1 publication Critical patent/EP0774423A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B65D83/38—Details of the container body

Definitions

  • the invention relates to valves for apparatus for dispensing a liquid product from a pressurised container where it is required to dispense an accurately metered quantity of the liquid product.
  • Pressurised dispensing containers are used for dispensing a wide variety of liquid products and generally employ a liquid propellant, such as a hydrocarbon or flurocarbon, mixed with the liquid product having a sufficiently high vapour pressure at normal working temperatures to propel the liquid product through the dispensing apparatus.
  • a liquid propellant such as a hydrocarbon or flurocarbon
  • Dispensing containers therefore usually bear information pertaining to the number of metered doses available. This is usually less than the optimum number of doses which could be obtained from the total volume of liquid in the container, as a certain quantity of the liquid cannot be dispensed accurately as the container gets emptier, and is therefore wasted.
  • the object of the present invention is to minimise the wastage of a liquid product as the container empties and to minimise the mobility of any product not easily dispensable.
  • dispensing apparatus comprising a metering valve for use with a container for pressurised liquid, the valve comprising a valve body defining a chamber having one or more inlets for pressurised liquid and an annular seal member positioned around the valve body and in sealing contact with an inner surface of the container, said seal member comprising an annular inner section providing a liquid flow path from the container to the one or more inlets providing support for an outwardly extending flexible outer flange section which flexes to make sealing contact with the container.
  • a valve 11 which is fitted to a pressurised dispensing container 12 containing a liquid 13 to be dispensed in metered doses.
  • the valve 11 comprises a valve body 14 and a valve stem 15, which stem 15 is reciprocable axially within the body 14.
  • the valve stem 15 shown in Fig. 1 comprises two sections, a first portion 17 and a second portion 18.
  • the second portion 18 of the valve stem 15 is solid at one end and hollow at the other end and a spigot on the end of the valve stem first portion 17 is located in the hollow end of the second portion 18 such that a by-pass chamber 19 is defined within the valve stem second portion 18.
  • a pair of ports 23, 24 are defined in the side wall of the by-pass chamber 19 to permit the ingress and egress of liquid 13 respectively.
  • the first portion 17 defines a bore communicating with ports 32 in the side walls of the first portion 17.
  • the valve stem 15 may alternately be molded as a single part.
  • the valve body 14 is substantially funnel-shaped, the narrow section of which defines a collecting chamber 16 which extends around the second portion 18 of the valve stem 15.
  • the collecting chamber 16 has an aperture 20 at one end and further apertures 21, 22 which allow the ingress of liquid from the dispensing container 12.
  • a cup 27 which defines an annular metering chamber 28 through which the valve stem 15 passes.
  • the ports 32 permit the ingress of liquid 13 into the valve stem 15 from the metering chamber 28.
  • valve 11 is held in place on the dispensing container 12 by a crimped cup 30 such that the valve stem 15 projects through an aperture 31 in the cup 30.
  • An annular can seal 35 provides a seal between the cup 30, the valve body 14 and the container 12.
  • a pair of annular sealing rings 34a, 34b are located at either end of the cup 27 around the valve stem 15.
  • the ring 34a is sandwiched between the cup 27 and the crimped cup 30 and the ring 34b between the cup 27 and the valve body 14, so that the valve stem 15 can slide relative to the rings 34a, 34b.
  • the valve 11 is actuated by manual depression of the valve stem 15 and the operation of the valve 11 is such that at each depression of the valve stem 15 a volume of liquid 13 equal to the contents of the metering chamber 28 is discharged therefrom, via ports 32 and through the stem 15.
  • the valve stem 15 is returned to its rest position with the ports 32 sealed off from the chamber 28 by the sealing ring 34b by a return spring 33 acting between the valve stem second portion 18 and the inside of the collecting chamber 16.
  • the metering chamber 28 is replenished by an influx of liquid 13 which enters the collecting chamber 16 through the apertures 20, 21, 22, passes through the by-pass chamber 19 via ports 23, 24 and into the metering chamber 28.
  • valve stem 15 when the valve stem 15 is depressed for the dispensing operation, the metering chamber 28 is sealed off from the by-pass chamber 19 as the port 24 moves past the sealing ring 34a.
  • Fig. 2 the dispensing apparatus 10 is illustrated at the end of its pack life.
  • the level of liquid 13 in the container has dropped below the apertures 21, 22 and can therefore no longer enter the collecting chamber 16.
  • tipping and shaking the apparatus 10 can achieve a certain degree of success in dislodging the remaining liquid 13a, this is very imprecise. As a result, this remaining product 13a cannot be dispensed in a controlled manner.
  • Fig. 7 which shows the weight of each shot (or dose) of liquid dispensed throughout the pack life, with the final few doses being erratic.
  • the dispensing apparatus 10 further comprises a sealing insert 40.
  • the insert 40 is preferably made of a polymeric material such as polypropylene or polyamide (nylon).
  • the sealing insert 40 comprises a substantially rigid annular inner section 41 which is positioned over the valve body 14 and dimensioned so as to provide a sealing fit against the valve body 14.
  • the insert 40 alters the flow path of the liquid 13 to the apertures 21, 22 to the collecting chamber 16.
  • the annular section 41 generally has a conical or inwardly dished shape, therefore ensuring the optimum fill level at the re-fill apertures 21, 22.
  • the insert 40 has an outwardly extending flexible outer flange section 42 which has a diameter greater than that of a neck of the container 12 in which the insert 40 is located such that it flexes to seal against the inner profile of the neck of the container 12.
  • the insert 40 helps to fill and seal off the areas of the container 12 in which liquid 13 can be trapped and does not compromise the seal geometry of the can seal 35 of the dispensing apparatus 10 with the insert 40.
  • the amount of waste liquid 13a remaining towards the end of the pack life is substantially reduced from that shown in the conventional apparatus 10 illustrated in Figs. 1 and 2.
  • the improvement in the efficiency of dispensing at the end of the pack life is illustrated in Fig. 8 which shows a good life performance to the final shots.
  • the sealing insert 40 In addition to reducing the quantity of waste liquid 13a in the dispensing apparatus 10, the sealing insert 40 also reduces the surface area of the can seal 35 which is exposed to the product which increases its life span and reduces the risk of any contamination of the liquid 13.
  • the gasket area defining the seal between the cup 30 and container 12 is to a greater degree mechanically isolated from the product 13, thereby increasing the efficiency of the can seal 35.
  • valve body 14 may have locating pips on its outer surface to assist in the positioning of the sealing insert 40.

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)
EP96308185A 1995-11-15 1996-11-13 Joint de soupape pour récipients de distribution pressurisés Withdrawn EP0774423A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9523444 1995-11-15
GB9523444A GB2307224A (en) 1995-11-15 1995-11-15 Metered aerosol dispensing valve

Publications (1)

Publication Number Publication Date
EP0774423A1 true EP0774423A1 (fr) 1997-05-21

Family

ID=10783984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96308185A Withdrawn EP0774423A1 (fr) 1995-11-15 1996-11-13 Joint de soupape pour récipients de distribution pressurisés

Country Status (2)

Country Link
EP (1) EP0774423A1 (fr)
GB (1) GB2307224A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170717B1 (en) * 1996-12-27 2001-01-09 Glaxo Wellcome Inc. Valve for aerosol container
WO2006038874A1 (fr) 2004-10-08 2006-04-13 Astrazeneca Ab Soupape d'inhalateur
FR2895374A1 (fr) * 2005-12-27 2007-06-29 Valois Sas Bague pour valve aerosol.
EP2086858A2 (fr) * 2006-11-20 2009-08-12 Cipla Limited Dispositif aérosol
FR3006300A1 (fr) * 2013-06-04 2014-12-05 Aptar France Sas Valve doseuse et dispositif de distribution de produit fluide comportant une telle valve.
FR3019534A1 (fr) * 2014-04-02 2015-10-09 Rexam Healthcare La Verpillier Ensemble de distribution d'un aerosol a epaulement annulaire d'etancheite perfectionne
FR3042785A1 (fr) * 2015-10-22 2017-04-28 Nemera La Verpilliere Valve doseuse amelioree pour la distribution d'un fluide.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322847A (en) * 1997-11-05 1998-09-09 Bespak Plc Metering valve
GB9918627D0 (en) 1999-08-07 1999-10-13 Glaxo Group Ltd Valve
GB9918626D0 (en) 1999-08-07 1999-10-13 Glaxo Group Ltd Valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615124A1 (fr) * 1987-05-12 1988-11-18 Valois Valve aerosol doseuse a propulseur, utilisable en position inversee
EP0326122A1 (fr) * 1988-01-28 1989-08-02 Boehringer Ingelheim Kg Dispositif pour augmenter la fiabilité du dosage de préparations en suspension pour aérosols
US5037012A (en) * 1989-07-28 1991-08-06 Harris Pharmaceuticals Limited Valve for an aerosol dispenser
WO1995003985A1 (fr) * 1993-07-29 1995-02-09 Minnesota Mining And Manufacturing Company Soupape de dosage d'aerosol s'appliquant au remplissage sous pression

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8720978D0 (en) * 1987-09-07 1987-10-14 Bespak Plc Collapsible chamber metering valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615124A1 (fr) * 1987-05-12 1988-11-18 Valois Valve aerosol doseuse a propulseur, utilisable en position inversee
EP0326122A1 (fr) * 1988-01-28 1989-08-02 Boehringer Ingelheim Kg Dispositif pour augmenter la fiabilité du dosage de préparations en suspension pour aérosols
US5037012A (en) * 1989-07-28 1991-08-06 Harris Pharmaceuticals Limited Valve for an aerosol dispenser
WO1995003985A1 (fr) * 1993-07-29 1995-02-09 Minnesota Mining And Manufacturing Company Soupape de dosage d'aerosol s'appliquant au remplissage sous pression

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1415934A1 (fr) * 1996-12-27 2004-05-06 Glaxo Group Limited Anneau pour une valve d'aérosol
US6966467B2 (en) 1996-12-27 2005-11-22 Smithklinebeecham Corporation Valve for aerosol container
US7350676B2 (en) 1996-12-27 2008-04-01 Smithkline Beecham Corporation Valve for aerosol container
US6170717B1 (en) * 1996-12-27 2001-01-09 Glaxo Wellcome Inc. Valve for aerosol container
WO2006038874A1 (fr) 2004-10-08 2006-04-13 Astrazeneca Ab Soupape d'inhalateur
JP2008515731A (ja) * 2004-10-08 2008-05-15 アストラゼネカ・アクチエボラーグ 吸入器用バルブ
US8286941B2 (en) 2005-12-27 2012-10-16 Aptar France Sas Ring for aerosol dispenser valve
FR2895374A1 (fr) * 2005-12-27 2007-06-29 Valois Sas Bague pour valve aerosol.
WO2007074274A1 (fr) * 2005-12-27 2007-07-05 Valois Sas Bague pour valve aerosol
CN101351392B (zh) * 2005-12-27 2012-01-18 瓦卢瓦有限合伙公司 气雾剂阀用的环件及具有这样的环件的气雾剂的分配装置
EP2086858A2 (fr) * 2006-11-20 2009-08-12 Cipla Limited Dispositif aérosol
FR3006300A1 (fr) * 2013-06-04 2014-12-05 Aptar France Sas Valve doseuse et dispositif de distribution de produit fluide comportant une telle valve.
WO2014195616A1 (fr) * 2013-06-04 2014-12-11 Aptar France Sas Valve doseuse et dispositif de distribution de produit fluide comportant une telle valve.
US10364898B2 (en) 2013-06-04 2019-07-30 Aptar France Sas Metering valve and device for dispensing a fluid product comprising such a valve
FR3019534A1 (fr) * 2014-04-02 2015-10-09 Rexam Healthcare La Verpillier Ensemble de distribution d'un aerosol a epaulement annulaire d'etancheite perfectionne
FR3042785A1 (fr) * 2015-10-22 2017-04-28 Nemera La Verpilliere Valve doseuse amelioree pour la distribution d'un fluide.

Also Published As

Publication number Publication date
GB2307224A (en) 1997-05-21
GB9523444D0 (en) 1996-01-17

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