EP0761555A1 - Bierfassverschluss mit Einrichtung zum Verhindern des Herausschleudern des Verschlusses - Google Patents

Bierfassverschluss mit Einrichtung zum Verhindern des Herausschleudern des Verschlusses Download PDF

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Publication number
EP0761555A1
EP0761555A1 EP96300230A EP96300230A EP0761555A1 EP 0761555 A1 EP0761555 A1 EP 0761555A1 EP 96300230 A EP96300230 A EP 96300230A EP 96300230 A EP96300230 A EP 96300230A EP 0761555 A1 EP0761555 A1 EP 0761555A1
Authority
EP
European Patent Office
Prior art keywords
stopper
tube
barrel
prevention member
ejection
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Withdrawn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
EP96300230A
Other languages
English (en)
French (fr)
Inventor
Kazuo Furuichi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0761555A1 publication Critical patent/EP0761555A1/de
Withdrawn legal-status Critical Current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
    • B67D1/0838—Keg connection means combined with valves comprising means for preventing blow-out on disassembly of the spear valve

Definitions

  • the present invention relates to a spear-tube stopper for use with a pressurised beer barrel, more specifically, to a spear-tube stopper provided with a ejection-preventing means.
  • Pressurised beer barrels generally employ a special stopper called a spear-tube stopper, which is used for transferring beer and pressurising carbon dioxide gas to and from the barrel and is also usable for cleaning the inside of the beer barrel.
  • a spear-tube stopper which is used for transferring beer and pressurising carbon dioxide gas to and from the barrel and is also usable for cleaning the inside of the beer barrel.
  • a spear-tube stopper comprises: a body containing a spring urged beer valve, a spring urged gas valve, a beer valve spring support and a down-tube extending downwards therefrom. It is unlikely that a spear-tube stopper should need to be removed from a beer barrel in ordinary use since it is provided on the upper end part of the body and firmly fitted to the beer barrel with a male thread screwed into a female thread provided on the inside of a beer barrel cap.
  • spear-tube stopper for example, for cleaning and repair. If there is residual pressure in the barrel, due to insufficient exhausting of the pressurising gas, the spear-tube stopper can be violently ejected once the threads are unfastened. This often causes accidents such as injuring workers and breaking vessels.
  • Spear-tube stoppers provided with an ejection preventing means, for preventing them from shooting out of the barrel and thus avoiding such accidents.
  • An example of such a stopper is a spear-tube stopper provided with an ejection preventing pin which retractably protrudes from the stopper body.
  • this leads to problems during cleaning, since the inside of the body is rather complicated in structure.
  • a spear-tube stopper provided with an ejection preventing means comprising a pair of hinged metal components on the down-tube. It is necessary to tip the barrel, so that the hinges are closed, in order to remove the stopper from the barrel. However, it is difficult to apply these means to ready-made or conventionally used spear-tube stoppers.
  • a spear-tube stopper provided with an ejection preventing means, which provides the ejection preventing function, has a simple structure, needs less material and can be produced easily by modification of a ready-made spear-tube stopper.
  • a spear-tube stopper for use in a pressurisable beer barrel, the stopper comprising: a body to be attached in an opening to the barrel and to extend into the barrel; a down tube having an upper part located within the body and extending down through the bottom of the body, the down tube being slidable downwardly to an extent limited by the body, the stopper including an ejection prevention member which moves with the tube and is provided with at least one projecting portion normally projecting outward such that it engages the lower side of the barrel cap as the stopper is removed from the barrel, characterised by the projecting portion being formed to extend upwards from a part of the ejection prevention member and having the upper portion bent outward through a window in the body, and being retractable by moving said ejection prevention member downwardly so that the projecting portion is forced behind a lower part of the body.
  • the projecting portion prevents unexpected ejection of the stopper from a barrel.
  • the stopper can only be released if the protruding portion is retracted. This is done by pressing the tube and ejection prevention member downward relative to the body.
  • said ejection prevention member is made from a material having a high modulus of elasticity such as stainless steel.
  • said ejection prevention member includes a fixing ring located at the upper end of the down-tube.
  • the ejection prevention member is formed in one piece, the fixing ring being provided so that it is held between a flange on the upper end of the down-tube and the upper end of the spring which is urged upwards against said flange.
  • a beer barrel A whose vertical cross section is shown schematically, comprises a main body 1 with a cap 4 provided thereon, an upper protector 3 and a lower protector 2 and a spear-tube stopper B according to the present invention, further shown in Figures 3A and 3B.
  • This comprises a body 5 and a down-tube 6; a window 55 is provided on the lower part of the body 1 and an ejection preventing piece 7 with a barrel engaging portion 73 protrudes from the window.
  • a spear-tube stopper B shown in Fig. 2 is of a conventional type and has no ejection preventing piece.
  • FIGs. 3A and 3B an ejection preventing piece 7 is shown set in a normal position.
  • the spear-tube stopper will not eject as a result of unexhausted internal pressure in the barrel with a stopper in this state.
  • FIGs. 4A and 4B show further details and the operation of this embodiment of the present invention.
  • Figure 4A shows the normal state of a spear-tube stopper B in a barrel, in which it cannot be removed
  • Figure 4B shows the spear-tube in its state in which it is removable from the barrel.
  • the barrel engaging portion 73 is provided on a downwardly depending portion 72 of the ejection preventing piece 7 and protrudes from the window 55 in an arc. Even if the screw 51 of the stopper is removed from the screw of the cap 4, the tip part of the barrel engaging portion 73 comes into contact with the lower edge part of the cap 4 and prevents the stopper B from ejecting from the barrel.
  • the ejection preventing piece 7 is formed of a fixing ring 71 to which the downwardly depending portion 72 is attached.
  • the ring is held between a flange of the down-tube 6 and the upper end of the gas spring 52.
  • the downwardly depending portion 72 and the barrel engaging portion 73 are located within the lower part 54 of the body 1 near window 55. They are formed from a metal sheet in one piece, although this is not essential.
  • a separately prepared ejection preventing piece may be welded to the upper end flange of the down-tube 6.
  • Figure 4B shows the case of removing the stopper B from the barrel A .
  • the down-tube 6 is pushed down using a special implement similar to a dispenser head but with no connecting stopper to a gas bottle or a dispenser provided thereon.
  • This pushes the ejection preventing piece 7 down and the downwardly depending portion and the barrel engaging portion 73 are pushed behind the lower part of the body below the window 55.
  • the portion 73 moves radially inwards and will no longer prevent withdrawal.
  • the stopper B can then be withdrawn from the cap 4 without restriction. Under these circumstances, even if there exists residual gas in the barrel A , it escapes through the large space between the gas valve and the stopper body and is completely discharged; hence the stopper B does not shoot out of the barrel.
  • Fig. 6 shows various ejection preventing members with modified examples of the barrel engaging portion. If residual pressure is less than about 5 bar the barrel engaging portion 73 with the planar cross section, shown in Fig. 6a, is satisfactory. However, it may be desirable to make ones with modified cross sections with higher rigidity, as shown in Fig. 6b-e, to allow for emergency situations.
  • the present invention provides a means to prevent accidents due to spear-tube stoppers shooting out of barrels, which utilises a ready-made spear-tube stopper provided with an extremely simple additional mechanism.

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  • Devices For Dispensing Beverages (AREA)
EP96300230A 1995-09-07 1996-01-11 Bierfassverschluss mit Einrichtung zum Verhindern des Herausschleudern des Verschlusses Withdrawn EP0761555A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25446695 1995-09-07
JP254466/95 1995-09-07

Publications (1)

Publication Number Publication Date
EP0761555A1 true EP0761555A1 (de) 1997-03-12

Family

ID=17265429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96300230A Withdrawn EP0761555A1 (de) 1995-09-07 1996-01-11 Bierfassverschluss mit Einrichtung zum Verhindern des Herausschleudern des Verschlusses

Country Status (1)

Country Link
EP (1) EP0761555A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801025A1 (de) * 1996-04-12 1997-10-15 Suntory Limited Steigrohr für Bierfass
GB2331294A (en) * 1997-11-18 1999-05-19 Skerra Pty Ltd Seal carrying plate for a keg valve fitting
WO2003093163A1 (en) * 2002-05-02 2003-11-13 Cypherco Limited Dispensing valve assembly for a beer keg

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232799A (ja) * 1994-02-18 1995-09-05 Nasu Tooa Kk 生ビール樽用フィッティング

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07232799A (ja) * 1994-02-18 1995-09-05 Nasu Tooa Kk 生ビール樽用フィッティング

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0801025A1 (de) * 1996-04-12 1997-10-15 Suntory Limited Steigrohr für Bierfass
US5833098A (en) * 1996-04-12 1998-11-10 Suntory Limited Spear tube for beer keg
GB2331294A (en) * 1997-11-18 1999-05-19 Skerra Pty Ltd Seal carrying plate for a keg valve fitting
WO2003093163A1 (en) * 2002-05-02 2003-11-13 Cypherco Limited Dispensing valve assembly for a beer keg
US7546935B2 (en) 2002-05-02 2009-06-16 Cypherco Limited Dispensing valve assembly for a beer keg

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