EP0263620B1 - Tête de distribution de liquide - Google Patents

Tête de distribution de liquide Download PDF

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Publication number
EP0263620B1
EP0263620B1 EP19870308432 EP87308432A EP0263620B1 EP 0263620 B1 EP0263620 B1 EP 0263620B1 EP 19870308432 EP19870308432 EP 19870308432 EP 87308432 A EP87308432 A EP 87308432A EP 0263620 B1 EP0263620 B1 EP 0263620B1
Authority
EP
European Patent Office
Prior art keywords
head
gas
gasket
center member
dispense head
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
Application number
EP19870308432
Other languages
German (de)
English (en)
Other versions
EP0263620A1 (fr
Inventor
Roger John Hyde
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.)
Greif International Holding BV
Original Assignee
Koninklijke Emballage Industrie Van Leer BV
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 Koninklijke Emballage Industrie Van Leer BV filed Critical Koninklijke Emballage Industrie Van Leer BV
Publication of EP0263620A1 publication Critical patent/EP0263620A1/fr
Application granted granted Critical
Publication of EP0263620B1 publication Critical patent/EP0263620B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B67D1/0831—Keg connection means combined with valves
    • B67D1/0832—Keg connection means combined with valves with two valves disposed concentrically

Definitions

  • This invention relates to dispense heads which each comprise a connector unit for fitting to a closure valve of a cask or like container for liquid to be dispensed through the head by the pressure of gas admitted through the head.
  • Such a gas-pressure dispense head for use with the closure valve of a beverage container which comprises a head body, adapted for ready and retentive connection with the valve body of a keg closure valve; a center member, axially movable in the head body and having internal passages for gas and beverages respectively, which passages terminate in concentric mouths separated by an annular wall for engaging and opening the closure valve when the center member is manually depressed axially downwardly; an annular resilient seal encircling the annular wall, for sealingly contacting the valve closure body; and, a gas valve assembly to control admission of gas through the head and constructed to be operative only when the head is connected to the closure valve body.
  • the gas valve assembly was formed by a valve member carried by the annular resilient seal which, due to compressive deformation of the annular resilient seal moved to open the gas passage in the head and, due to relaxing of such compression, moved to close off the gas passage.
  • the disadvantage of this dispense head is that upwards manual depression (such as by unauthorised tampering by the insertion of a tool into the mouth of the dispense head) of the annular sealing ring would cause the gas passage in the head to open, releasing full gas pressure to atmosphere and possibly injuring the person tampering with the dispense head.
  • the gas valve assembly of a gas-pressure dispense head comprises a flange seating ring movable on the center member against a first, resiliently deformable, sealing ring acting between the centre member and the valve body and arranged to normally load the seating ring against a second sealing ring located on the annular wall; and the annular resilient seal is a separate resilient gasket fixed to the valve body in the mouth of the gas passage whereby, only when the head is connected to a closure valve body and the centre member axially downwardly depressed to open the closure valve, can the seating ring sealingly engage the gasket to sealingly load the gasket against the closure valve body; and, when the head is disconnected, axial upwards manual depression of the gasket cannot open the gas valve assembly.
  • the dispense head shown comprises a tubular body 1 of which the mouth at the base is partly surrounded by a gapped flanged skirt 2 to slide laterally into engagement with a flange 3 on a closure valve body 4 (Fig. 2).
  • the closure valve is of a standard poppet type and is not shown.
  • a tubular centre member 5 forms the liquid-dispensing outlet, past a non-return valve 6, and is axially slidable under the control of a hand-lever 7 pivoted on a lug 8 on the body 1 and housing a spring-loaded latch 9 which engages over a keeper 10 and normally holds the lever in its raised position (Fig.1) but can be pulled up to pass the keeper and then released to engage below the keeper when the lever is to be lowered to open the head.
  • the body 1 has a gas inlet branch 12 to which a gas supply pipe (not shown) is connected and which opens to the bore of the body 1 by an inlet port 13.
  • a gas supply pipe (not shown) is connected and which opens to the bore of the body 1 by an inlet port 13.
  • Controlling admission of gas through the port 13 is the valve assembly provided by the present invention and including essentially an axially movable flange seating ring 14 and a loading ring 15 of resiliently deformable material housed in an enlarged bore 16 in the lower end of the body 1.
  • the loading ring 15 is held in an annular channel 17 in a flange 18 at the lower end of a sleeve 19 slidable on a cylindrical wall 20 of the centre member 5 and retained by a circlip 21.
  • the seating ring 14 rests as a freely slidable flange on the enlarged, bell-shaped, inner end 11 of the centre member 5 with an interposed O-ring 22 and, in the closed condition of the dispense head, the circlip 21 holds the sleeve 19, loading ring 15, flange seating ring 14 and O-ring 22 axially stressed in compression.
  • the bore of the body 1 is sealed respectively by an O-ring 23, against the wall 20, and an O-ring 24, against the sleeve 19.
  • Gas-flow passages formed by flutes 25, in the bore of the sleeve 19, and notches 26, in the inner rim of the ring 14, provide a path (indicated by arrows in Fig. 2) for gas from the port 13, past the lower end 11 of the centre member 5 and into the cask, to displace liquid, only when the centre member 5 has been moved down, by the lever 7, relatively to the seating ring 14 (Fig.2).
  • Fig. 2 shows how the ring 14, loaded by the ring 15, is stopped by and seals against a resilient gasket 27, which in turn seals against the cask valve flange 3 to provide an atmospheric seal and prevent leakage of liquid.
  • the dispense head is fitted to the closure valve of a cask, a gas supply pipe is connected to the inlet branch 12 and a delivery pipe (not shown), connected to the upper end 28 of the centre member 5, leads to a service tap for the liquid to be dispensed.
  • the shape of the flange seating ring 14 is an important feature of the invention.
  • the lower side of the ring has inner and outer peripheral bevels 29 and 30 so that not only does the bevel 29 seal against the O-ring 22 but, in the open condition of the head, the bevel 30 stops and seals against the gasket 27. This ensures that the centre member moves through the seating ring 14, to open the gas flow path past the O-ring 22, only when the dispense head is correctly fitted to a closure valve flange 3 and gasket 27.
  • gasket 27 When disconnected, gasket 27 also provides an anti-tamper seal as, to force the gas path open, an instrument would have to be introduced to pass gasket 27, lift ring 14 to compress ring 15 and prevent the centre member 5 from lifting with sleeve 19.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)

Claims (8)

  1. Tête distributrice à pression de gaz destinée à être utilisée en liaison avec le clapet de fermeture d'un récipient de boisson, comprenant :
    - un corps de tête (1), adapté pour être facilement raccordé au corps de clapet (3) d'un clapet de fermeture de barillet (4) et être retenu par lui;
    - un élément central (5), axialement mobile dans le corps de tête et ayant des passages intérieurs respectivement pour le gaz (13) et pour la boisson, lesquels passages se terminent en des embouchures concentriques séparées par une paroi annulaire (11) pour venir en prise avec le clapet de fermeture et l'ouvrir lorsqu'on enfonce manuellement l'élément central axialement vers le bas;
    - un joint d'étanchéité annulaire élastique (27) entourant la paroi annulaire pour venir en contact hermétique avec le corps du clapet de fermeture; et
    - un ensemble de clapet (15,14,22) pour commander l'admission d'un gaz à travers la tête et réalisé de manière à ne pouvoir fonctionner que lorsque la tête est raccordée au corps du clapet de fermeture,
    caractérisée en ce que
    l'ensemble de clapet de gaz comprend une bague d'appui (14) pouvant se déplacer sur l'élément central (5) contre une première bague d'étanchéité (15) élastiquement déformable agissant entre l'élément central et le corps du clapet (1) et agencée pour appliquer normalement la bague d'appui contre une deuxième bague d'étanchéité (22) placée sur la paroi annulaire,
    et en ce que le joint d'étanchéité annulaire élastique est une garniture élastique séparée (27) fixée sur le corps du clapet (1) dans l'embouchure du passage de gaz, d'où il résulte que c'est seulement lorsque la tête est raccordée au corps du clapet de fermeture et que l'élément central est enfoncé axialement vers le bas pour ouvrir le clapet de fermeture que la bague d'appui peut coopérer de façon étanche avec la garniture pour appliquer hermétiquement celle-ci contre le corps du clapet de fermeture et que, lorsque la tête est démontée du corps du clapet, une pression exercée à la main axialement vers le haut sur la garniture ne peut pas ouvrir l'ensemble de clapet de gaz.
  2. Tête distributrice selon la revendication 1, caractérisée en ce que l'embouchure du passage de gaz, la garniture (27) et la paroi annulaire (11) se trouvent pratiquement dans le même plan lorsque la tête est démontée.
  3. Tête distributrice selon la revendication 1 ou la revendication 2, caractérisée en ce qu'un manchon (19), pouvant coulisser sur l'élément central (5), porte la première bague d'étanchéité (15), la paroi annulaire (11) a un diamètre plus grand que l'élément central et que des moyens de butée (21) sont prévus sur l'élément central pour limiter le mouvement axial vers le haut du manchon par rapport à l'élément central.
  4. Tête distributrice selon la revendication 3, caractérisée en ce que le manchon (19) a des cannelures (25) et la bague d'appui (14) des encoches pour former un trajet de circulation du gaz.
  5. Tête distributrice selon la revendication 3 ou la revendication 4, caractérisée en ce que la première bague d'étanchéité (15) est tenue dans une gorge annulaire (17) d'une collerette (18) au niveau de l'extrémité inférieure du manchon (19).
  6. Tête distributrice selon la revendication 1 ou la revendication 2, caractérisée en ce que la bague d'appui (14) fait céder la garniture (27) lorsque l'élément central (5) est axialement enfoncé et que la tête distributrice (1) est démontée de telle sorte que la bague d'appui reste en contact étanche avec la deuxième bague d'étanchéité.
  7. Tête distributrice selon la revendication 1 ou la revendication 6, caractérisée en ce que la bague d'appui (14) a des biseaux, intérieur (29) et extérieur (30) pour s'appliquer de façon étanche respectivement contre la garniture (27) et la deuxième bague d'étanchéité (22) pour commander le trajet de circulation du gaz.
  8. Tête distributrice selon la revendication 6 ou la revendication 7, caractérisée en ce que la garniture (27) s'applique de façon étanche contre la paroi annulaire (11) lorsque la tête distributrice (1) est démontée.
EP19870308432 1986-10-06 1987-09-23 Tête de distribution de liquide Expired EP0263620B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868623932A GB8623932D0 (en) 1986-10-06 1986-10-06 Liquid dispense head
GB8623932 1986-10-06

Publications (2)

Publication Number Publication Date
EP0263620A1 EP0263620A1 (fr) 1988-04-13
EP0263620B1 true EP0263620B1 (fr) 1992-06-17

Family

ID=10605322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870308432 Expired EP0263620B1 (fr) 1986-10-06 1987-09-23 Tête de distribution de liquide

Country Status (3)

Country Link
EP (1) EP0263620B1 (fr)
DE (1) DE3779853D1 (fr)
GB (1) GB8623932D0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK169814B1 (da) * 1992-03-04 1995-03-06 Micro Matic As Koblingsarrangement til at koble et tappehoved sammen med en beholderventil
DE69501204T2 (de) * 1994-02-07 1998-04-16 Micro Matic As Dichtung für behälter
DE29919626U1 (de) * 1999-11-09 2000-01-20 IPE Engineering GmbH, 77815 Bühl Zapfkopf zur Entnahme von unter Gasdruck stehenden Getränken

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1239907A (en) * 1967-09-25 1971-07-21 Alumasc Ltd A connector unit for permitting fluid flow to or from a container
BE737362A (fr) * 1968-08-12 1970-01-16
NL7708912A (nl) * 1976-09-04 1978-03-07 Enzinger Union Werke Ag Aansluitinrichting voor drankhouders.
US4341240A (en) * 1980-02-04 1982-07-27 Vending Components, Inc. Beer tap construction
US4612952A (en) * 1985-02-25 1986-09-23 Draft Systems, Inc. Valve assembly and coupler therefor

Also Published As

Publication number Publication date
EP0263620A1 (fr) 1988-04-13
GB8623932D0 (en) 1986-11-12
DE3779853D1 (de) 1992-07-23

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