WO1993019003A1 - Fut de securite - Google Patents

Fut de securite Download PDF

Info

Publication number
WO1993019003A1
WO1993019003A1 PCT/GB1993/000561 GB9300561W WO9319003A1 WO 1993019003 A1 WO1993019003 A1 WO 1993019003A1 GB 9300561 W GB9300561 W GB 9300561W WO 9319003 A1 WO9319003 A1 WO 9319003A1
Authority
WO
WIPO (PCT)
Prior art keywords
keg
neck
spear valve
safety
locking element
Prior art date
Application number
PCT/GB1993/000561
Other languages
English (en)
Inventor
Robert Bernard Cook
Original Assignee
Universal Equipment Company (London) Limited
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 Universal Equipment Company (London) Limited filed Critical Universal Equipment Company (London) Limited
Priority to GB9418943A priority Critical patent/GB2279340B/en
Priority to EP93906700A priority patent/EP0630349B1/fr
Publication of WO1993019003A1 publication Critical patent/WO1993019003A1/fr

Links

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
    • B67D1/0838—Keg connection means combined with valves comprising means for preventing blow-out on disassembly of the spear valve

Definitions

  • a beer keg is usually a substantially cylindrical drum having a mouth at one end which is closed by a spear valve assembly providing access to beer in the keg via a tapping head.
  • the spear valve assembly usually comprises a beer valve located in the keg neck which includes a valve body and a valve housing, and a downtube connected to the valve body which extends into the keg.
  • a tapping head is connected to the spear valve providing pressure in the form of CO2- allowing the beer to be supplied under pressure to a dispensing tap at the bar.
  • valve housing and valve body must be coupled together after the valve body with the downtube thereon has been inserted through the keg neck.
  • An object of the present invention is to provide an improved safety keg assembly reducing the risk of a spear valve assembly being accidentally ejected by residual pressure.
  • a safety keg assembly comprising a keg having a keg neck, and a keg spear valve assembly releasably fitted in the keg neck, the keg neck and spear valve assembly each having at least one abutment surface which co-operate together to prevent the spear valve from being blown out by residual pressure in the keg.
  • the co-operable abutment surfaces comprise an abutment shoulder on the keg neck having a slot therethrough and at least one projecting locking element on the spear valve assembly dimensioned to pass through the slot.
  • the invention includes more particularly a safety keg assembly comprising a keg, and a keg spear valve releasably fitted in the keg neck, the spear valve having at least one locking element located on and extending outwardly therefrom, the or each locking element being arranged such that, once the keg spear valve is inserted into the keg neck, the locking element will prevent the spear valve from being blown out by residual pressure by engaging a shoulder on the keg neck, the assembly and disassembly of the spear valve and the keg neck being facilitated by a slot in the shoulder of the keg neck through which the locking element can pass.
  • the invention also includes a spear valve for the keg assembly as aforesaid and a keg including an access slot for receiving such a spear valve.
  • a plurality of locking elements are provided.
  • the locking elements may be spaced axially and circumferentially relative to one another. Thus, if it happens that one locking element is aligned with the slot when a residual pressure causes the spear valve to blow out, the ejection of the spear valve will be prevented by another element, spaced from the slot, engaging the shoulder.
  • two locking elements are provided, spaced axially and circumferentially, relative to one another.
  • two locking elements are provided, the elements being spaced axially from each other and being arranged to be diametrically opposite each other on the spear valve.
  • the keg may be provided with a plurality of shoulders spaced axially relative to each other to form one or more channels therebetween, with slots through which the or each locking element can pass.
  • the slots in respective shoulders are spaced circumferentially relative to each other.
  • the slots in respective shoulders are arranged with substantially the same circumferential and axial displacements therebetween as the circumferential and axial displacements between respective locking elements on the keg spear valve.
  • two locking elements and two shoulders may be provided, the shoulders being spaced axially relative to each other, and the two locking elements being spaced axially relative to each other.
  • the locking elements are diametrically opposed and the slots in the two shoulders are diametrically opposed.
  • Figure 1 is a cross-section of one embodiment of a keg spear valve assembly in accordance with the invention, the keg neck being shown dotted and the keg body shown dotted and broken away;
  • Figure 2 is a perspective view of part of the spear valve assembly shown in Figure 1 ;
  • Figure 3 is a cross-section of an alternative embodiment of the invention applied to a different design of spear valve assembly to that shown in Figure 1;
  • Figure 4 is a perspective view of part of the spear valve assembly shown in Figure 3;
  • Figure 5 is a perspective view of the keg neck of the keg for use with the spear valve assemblies of Figures 1 and 3;
  • Figure 6 is a plan view of the keg neck shown in Figure 5;
  • Figure 7 is a diagrammatic plan view of a spear valve assembly showing the projecting locking elements.
  • Figure 8 is a plan view of the spear valve assembly of Figure 7 inserted in the keg neck in the 'half open' position.
  • a keg (1) has a body (2) and a keg neck (3) defining a mouth (4).
  • the mouth (4) of the keg (1) is closed by a spear valve assembly (5) releasably seated within the mouth (4).
  • the spear valve assembly (5) and keg (1) are provided with a co-operable safety device (6).
  • the safety device (6) comprises
  • the keg neck (3) is a hollow cylinder having a smooth inner portion (9) and a threaded inner portion (10).
  • the abutment shoulder (8) is formed on the smooth inner portion (9) and is substantially annular extending inwardly towards the centre of the keg neck (3).
  • a slot (11) is cut out of the shoulder (8).
  • the keg neck (3) is rigidly secured to the keg body (2), the smooth inner portion (9) being disposed adjacent the keg body (2).
  • the keg neck (3) defines the keg mouth (4) and permits access to the inside of the keg (1).
  • the spear valve assembly (5) comprises a depending downtube (12), a beer valve indicated generally at (13) and a body (14) disposed around the beer valve (13).
  • the body (14) of the spear valve assembly (5) is substantially cylindrical and has three portions (15,16,17); a screw threaded locking ring portion (15) spaced from the downtube (12); a skirt portion (17) adjacent the downtube (12); and a smooth portion (16) located between the screw threaded portion (15) and the skirt portion (17).
  • the locking elements (7) are formed in the skirt portion (17) and comprise metallic lugs bent out of the plane of the surface of the skirt (17).
  • the two elements (7) are axially spaced from one another on the skirt portion (17) forming an inner locking element adjacent the downtube (12) and an outer locking element (7).
  • the locking elements (7) are diametrically opposed and extend outwardly from the body (14) as shown.
  • the inner locking element (7) abuts the outer face of the shoulder (8).
  • the spear valve (5) is then rotated until the locking element (7) aligns with the shoulder slot (11): the locking element (7) can then pass through the slot. Repeating this rotary action allows the other locking element (7) to pass through the slot (11).
  • a bridging washer (18) is also provided, being disposed around the skirt portion (17) and located between the smooth portion (16) and the outer locking element (7), thereby providing a continuous seal reaction face, bridging the shoulder slot (11).
  • valve assembly (5) To disassemble the valve assembly (5) from the keg neck (3) (see Figures 5 to 8), the residual pressure in the keg (1) is evacuated and the valve assembly (5) is unscrewed from the keg neck (3).
  • the valve assembly (5) When the outer locking element (7) abuts against the abutment shoulder (8), the valve assembly (5) is rotated relative to the keg neck (3) until the locking element corresponds with the slot (11) in the shoulder (8).
  • the valve assembly (5) can then be lifted until the inner locking element (7) abuts the shoulder (8).
  • the valve assembly (5) is again rotated until the inner locking element (7) can travel through the slot (11) and the valve assembly (5) is then free to be removed from the keg neck (3).
  • the spear valve assembly (5) can be unscrewed from the keg neck
  • the valve assembly (5) is provided with locking elements (7), the outer locking element (7) will abut against the shoulder (8) preventing the spear valve assembly (14) from being blown out and allowing excess pressure to escape.
  • the inner locking element (7) acts as a back-up and will itself abut the shoulder (8) .
  • FIGs 3 and 4 show a siightly.different embodiment to that shown in Figures 1 and 2, the safety device being mounted on a different design of spear valve assembly. Parts corresponding to parts in Figures 1 and 2 carry the same reference numerals.
  • the safety device is very similar to that shown in Figures 1 and 2, the device simply being adapted to an alternative spear valve assembly (20) which comprises a beer valve (21), a body (22) and a downtube (23).
  • the body (22) comprises a smooth portion (16), a skirt (17) and a separate screw threaded locking ring portion (15).
  • the skirt (17) is formed integrally with the downtube (23).
  • the locking elements (7) are axially displaced and formed diametrically opposed in the skirt (17) so as to extend radially outwardly therefrom.
  • the keg neck (3) is substantially as described above.
  • the alternative design of Figures 3 and 4 is assembled and disassembled in substantially the same way as described with reference to the embodiment of Figures 1 and 2.
  • the locking elements (7) are sections of the skirt (17) bent away from the axis of the spear valve to form lugs whereby insertion and removal of the spear valve is only possible by alignment with the or each slot in the keg shoulder as described.

Landscapes

  • Devices For Dispensing Beverages (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Safety Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

Un fût de sécurité (1) comporte un col (3) où est montée de manière amovible une soupape en tige (5). Cette dernière est munie d'au moins un ergot de verrouillage (7) faisant saillie (7) et s'adaptant au col (3). Une fois la soupape en tige (5) insérée dans le col (3), son ergot de verrouillage (7) l'empêche d'être projetée vers l'extérieur par la pression résiduelle car il s'engage avec un épaulement (8) placé sur le col (3). On peut monter la soupape en tige (5) dans le col (3) et l'en démonter grâce à un espace (11) ménagé dans l'épaulement (8) de ce col de manière à recevoir l'élément de verrouillage (7)
PCT/GB1993/000561 1992-03-21 1993-03-18 Fut de securite WO1993019003A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9418943A GB2279340B (en) 1992-03-21 1993-03-18 Safety keg assembly
EP93906700A EP0630349B1 (fr) 1992-03-21 1993-03-18 Fut de securite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929206212A GB9206212D0 (en) 1992-03-21 1992-03-21 A safety device
GB9206212.4 1992-03-21

Publications (1)

Publication Number Publication Date
WO1993019003A1 true WO1993019003A1 (fr) 1993-09-30

Family

ID=10712599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000561 WO1993019003A1 (fr) 1992-03-21 1993-03-18 Fut de securite

Country Status (5)

Country Link
EP (1) EP0630349B1 (fr)
AU (1) AU3760893A (fr)
ES (1) ES2096280T3 (fr)
GB (2) GB9206212D0 (fr)
WO (1) WO1993019003A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5833098A (en) * 1996-04-12 1998-11-10 Suntory Limited Spear tube for beer keg
WO1999048801A1 (fr) * 1998-03-24 1999-09-30 Spears Limited Dispositif de surpression de securite pour soupape de tige
US8635873B2 (en) 2009-02-27 2014-01-28 D2Bg Llc Compressed gas-driven device with passive thermodynamic composition
US8833078B2 (en) 2009-02-27 2014-09-16 D2Bg Llc Compressed gas-driven device with passive thermodynamic composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075476A (en) * 1980-04-22 1981-11-18 Alumasc Ltd Valve-type closure for containers
US4406301A (en) * 1981-04-07 1983-09-27 Vending Components, Inc. Keg-tapping structure
US4509663A (en) * 1982-03-29 1985-04-09 Draft Systems, Inc. Locking mechanism and valve assembly
GB2158906A (en) * 1984-05-18 1985-11-20 Micro Matic As Valve closure for kegs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2075476A (en) * 1980-04-22 1981-11-18 Alumasc Ltd Valve-type closure for containers
US4406301A (en) * 1981-04-07 1983-09-27 Vending Components, Inc. Keg-tapping structure
US4509663A (en) * 1982-03-29 1985-04-09 Draft Systems, Inc. Locking mechanism and valve assembly
GB2158906A (en) * 1984-05-18 1985-11-20 Micro Matic As Valve closure for kegs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5833098A (en) * 1996-04-12 1998-11-10 Suntory Limited Spear tube for beer keg
WO1999048801A1 (fr) * 1998-03-24 1999-09-30 Spears Limited Dispositif de surpression de securite pour soupape de tige
US8635873B2 (en) 2009-02-27 2014-01-28 D2Bg Llc Compressed gas-driven device with passive thermodynamic composition
US8833078B2 (en) 2009-02-27 2014-09-16 D2Bg Llc Compressed gas-driven device with passive thermodynamic composition

Also Published As

Publication number Publication date
ES2096280T3 (es) 1997-03-01
AU3760893A (en) 1993-10-21
GB2279340B (en) 1995-11-08
GB9418943D0 (en) 1994-11-09
EP0630349B1 (fr) 1996-11-20
GB2279340A (en) 1995-01-04
GB9206212D0 (en) 1992-05-06
EP0630349A1 (fr) 1994-12-28

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