EP0272906A2 - Zapfhähne für unter Druck stehende Fässer und Flaschen - Google Patents

Zapfhähne für unter Druck stehende Fässer und Flaschen Download PDF

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Publication number
EP0272906A2
EP0272906A2 EP87311261A EP87311261A EP0272906A2 EP 0272906 A2 EP0272906 A2 EP 0272906A2 EP 87311261 A EP87311261 A EP 87311261A EP 87311261 A EP87311261 A EP 87311261A EP 0272906 A2 EP0272906 A2 EP 0272906A2
Authority
EP
European Patent Office
Prior art keywords
tap
valve element
outlet
chamber
double seal
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Withdrawn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
EP87311261A
Other languages
English (en)
French (fr)
Other versions
EP0272906A3 (de
Inventor
Anthony James Lucking
Charles A. Lane
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.)
Waddington and Duval Ltd
Original Assignee
Waddington and Duval Ltd
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 Waddington and Duval Ltd filed Critical Waddington and Duval Ltd
Publication of EP0272906A2 publication Critical patent/EP0272906A2/de
Publication of EP0272906A3 publication Critical patent/EP0272906A3/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Withdrawn legal-status Critical Current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
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/14—Reducing valves or control taps
    • B67D1/1405—Control taps
    • B67D1/145—Control taps comprising a valve shutter movable in a direction perpendicular to the valve seat
    • B67D1/1466—Control taps comprising a valve shutter movable in a direction perpendicular to the valve seat the valve shutter being opened in a direction opposite to the liquid flow
    • 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
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/04—Liquid-dispensing taps or cocks adapted to seal and open tapping holes of casks, e.g. for beer
    • B67D3/043—Liquid-dispensing taps or cocks adapted to seal and open tapping holes of casks, e.g. for beer with a closing element having a linear movement, in a direction perpendicular to the seat
    • 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
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/04—Liquid-dispensing taps or cocks adapted to seal and open tapping holes of casks, e.g. for beer
    • B67D3/045—Liquid-dispensing taps or cocks adapted to seal and open tapping holes of casks, e.g. for beer with a closing element having a linear movement, in a direction parallel to the seat

Definitions

  • This invention relates to taps and more particularly to taps for pressurised casks and bottles.
  • Any gaseous liquid for example beer or carbonated soft drinks is difficult to dispense satisfactory without producing an unacceptable amount of froth.
  • the pressures at which such liquids have to be maintained prior to dispensing are high. Barrels of lager and beer require relatively sophisticated tapping devices to provide a pressure reduction between the container and the tap. These tapping devices additionally restrict the tendancy of the liquid to 'froth'. Whilst it is known to provide means whereby liquid may be poured from smaller containers these are often found to be unsuccessful at preventing frothing.
  • the general object of this invention is therefore to provide a relatively simple tap which will withstand the pressure of the gaseous liquid in a normally pressurised cask or bottle while allowing the liquid to be poured without excessive frothing and which may be provided for the cask or bottle without greatly adding to the cost to the consumer.
  • a tap for attachment comprises a chamber which has an outlet at one end controlled by a valve element and an expansion chamber coaxially aligned with and attached to the other end of the chamber, the smaller end of the expansion chamber being aligned and connected to a tube for insertion into the bottle or cask, the arrangement being such that there are no discontinuities in the flow path from the tube to the outlet of the chamber.
  • Such a tap has two advantages which reduce the amount of frothing. Firstly, it provides a smooth flow path for the liquid thereby reducing the nucleation of gas bubbles in the liquid being dispensed. Secondly, the small bore tube provides a restriction, so that there is only a small pressure drop across the tap itself, which minimises gas breakout at this point. The expansion section between the tube and the tap effects a smooth transition in cross-section minimising the production of gas bubbles in this zone.
  • a tap for attachment to a pressurised cask or bottle comprises a body portion with an outlet and a valve element to control the outlet, the valve element co-operating with the body so that at least one double seal is formed at the valve seat when the valve element is positioned to close the tap.
  • the advantage of this arrangement is that it enables the tap to withstand the pressure inside the container.
  • the valve element is preferably cylindrical and is preferably positioned transversely to the flow passage, a double seal being provided on each side of the flow passage when the valve element is in the closed position.
  • the valve member may alternatively be positioned parallel to the flow passage and a double seal provided on each side of the outlet when the valve element is in the closed position. This increases the ease of operation of the tap.
  • a cylindrical pipe of flexible material is attached between the expansion chamber and the tube to restrict the liquid flow rate when the container pressure is high so that the flow rate will always by substantially uniform over a wide range of container pressure.
  • the tap shown in Figure 1 has a body formed from a plastic material for example polypropylene or high density polyethylene consisting of a screw cap 2, by which it may be fitted to a correspondingly threaded open end of a pressurised cask or bottle, and an outlet 4 which are joined by a chamber 6.
  • the body extends above the outlet to form an annular wall 7 to hold a valve element for movement transverse to the axis of the chamber 6 to control fluid flow through the outlet 4.
  • the valve element may be formed from a semi-flexible elastomer material and is joined to a handle 10 in screw engagement with the annular wall 7.
  • valve In the position shown, the valve is closed and two double seals are formed between the valve and the annular wall.
  • the first double seal is formed (a) between a cylindrical face 12 of the valve 8 engaging against the inner face of the wall of the outlet 4, and (b) between a conical seat 14 on the valve engaging against a corresponding seat found on the upper edge of the outlet 4.
  • a second double seal is produced above the chamber 6 (a) between a bead 16 on the upper end of the valve engaging against a taper face 18 on the tubular extension 7 and (b) between a second bead 17 engaging against the inner wall of the tubular extension.
  • FIG. 2 Another embodiment of the tap is shown in Figure 2 in which like numerals refer to like parts.
  • the body extends from the chamber 6 transversly to and across the outlet 4 to form an annular wall 25 to hold the valve element 8 for movement parallel to the axis of the chamber 6.
  • two double seals are again formed, however in this embodiment a double seal is provided on either side of the outlet 4.
  • the first double seal is formed (a) between a bead 26 on the cylindrical face 12 of the valve 8 engaging against the wall of chamber 6 and (b) between the conical seat 14 on the valve engaging against a corresponding seat on the shoulder between the chamber 6 and the outlet 4.
  • the second double seal is produced on the other side of the outlet 4 (a) between the bead 16 on the outer end of the valve engaging against a taper face 28 on the tubular extension 25 and (b) between the second bead 17 engaging against the inner wall of the tubular extension 25.
  • the two double seals enable a significant amount of pressure to be held within the container to which the tap is attached.
  • the screw engagement between the handle 10 and the tubular body 7 or 25 is formed with a large angle screw thread. This gives a rapid movement of the valve on rotating the handle, reducing the time when the valve restricts the outlet and causes a consequent high pressure drop and thus minimising the froth dispensed on opening and closing.
  • Alternative means may be provided to move the valve but preferably the outlet is always opened and closed rapidly.
  • the axial valve arrangement shown in Figure 2 has the advantage that the opening and closing of the valve by rotation of the handle 10 is facilitated since the handle is distanced from the cap 2.
  • Ratchet teeth may be provided on the cap 2 and the container neck to prevent accidental unscrewing of the tap from the container.
  • the cylindrical chamber 6 extends through the screw cap and is joined to an expansion chamber 20.
  • the cross-sectional area of the expansion chamber is a maximum at this point and is exactly equal to the cross-sectional area of the cylindrical chamber.
  • the expansion chamber converges continuously to a minimum at an included angle of 10° to 20° and then extends at constant diameter to form a small tube 22.
  • This allows a capillary tube 24 to be attached either internally or externally to the cylindrically tapering expansion chamber as shown in Figures 1 and 2 respectively.
  • the internal cross-sectional area of the capillary tube is equal to that of the expansion chamber at the point where the liquid will pass from a capillary tube to the expansion chamber.
  • the tap of the present invention is preferably fitted to the cask or bottle as soon as it has been filled with liquid. For this reason, if the cap is viewed from the front looking along the axis of the cap screw thread, it is preferred that there are no projections of the tap beyond the outer diameter of the screw cap which is used to attach the fitment to the container neck. This is to maintain the simplicity of the capping equipment in line with that conventionally used.
  • the capillary tube is preferably arranged to extend to the bottom of the container to which the tap is attached. This means that all the liquid in the container will be available for dispensing even if the container is lying on its side and also ensures that the valve is flooded with the liquid at all times after the initial moments of the first dispensing operation.
  • a piece of flexible tubing may be added to the capillary tube.
  • This length of flexible tubing formed for example from silicon rubber is preferably attached between the expansion chamber and the capillary tube.
  • the pressure of the liquid within the capillary tube will decrease as it passes along the tube so that there will be a discernable pressure difference across the length of flexible tubing. This will cause it to contract thus restricting the flow from the container to the outlet.
  • the flow rate of the liquid along the capillary tube will tend to be high.
  • the high pressure will also cause the length of flexible tubing to collapse inwards thus restricting the flow.
  • the pressure difference across the length of tubing will decrease causing it to expand and allow more liquid through. In this way the flow rate remains substantially uniform over a wide range of container pressure.
  • the tap is relatively cheap to manufacture, but will operate successfully with gaseous liquids such as beer, lager, sparkling white wine and carbonated soft drinks and will maintain the liquid in good condition.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)
EP87311261A 1986-12-23 1987-12-21 Zapfhähne für unter Druck stehende Fässer und Flaschen Withdrawn EP0272906A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868630743A GB8630743D0 (en) 1986-12-23 1986-12-23 Taps for pressurised bottles & casks
GB8630743 1986-12-23

Publications (2)

Publication Number Publication Date
EP0272906A2 true EP0272906A2 (de) 1988-06-29
EP0272906A3 EP0272906A3 (de) 1988-07-27

Family

ID=10609506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87311261A Withdrawn EP0272906A3 (de) 1986-12-23 1987-12-21 Zapfhähne für unter Druck stehende Fässer und Flaschen

Country Status (5)

Country Link
EP (1) EP0272906A3 (de)
JP (1) JPS63162468A (de)
AU (1) AU606636B2 (de)
GB (2) GB8630743D0 (de)
ZA (1) ZA879506B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8902729U1 (de) * 1989-03-07 1989-05-11 Sieger Plastic GmbH, 5160 Düren Entleerungsvorrichtung für Behälter
EP0467530A2 (de) * 1990-06-20 1992-01-22 WADDINGTON & DUVAL LIMITED Verbesserung eines Zapfhahnes
WO2001002283A1 (en) * 1999-07-06 2001-01-11 Paul Roos Taps for liquid flow control
EP1385756A1 (de) * 2001-04-04 2004-02-04 Micro Matic U.S.A. Korrosionsfeste flüssigkeitsextraktionsvorrichtung
WO2005110912A1 (en) * 2004-05-14 2005-11-24 Koninklijke Philips Electronics N.V. Tap unit for a beverage dispenser
WO2007034338A1 (en) * 2005-09-26 2007-03-29 Illinois Tool Works Inc. Tap
ITPR20110018A1 (it) * 2011-03-09 2012-09-10 Logicon S R L Tappo dispensatore di prodotto liquido e/o viscoso contenuto in sacchi flessibili tipo "bag in box"
EP2844608A4 (de) * 2012-04-30 2016-01-27 Liqui Box Corp Rohradapter zur verwendung für einen ventileinsatz zur ausgabe von flüssigkeiten
WO2020053904A1 (en) * 2018-09-14 2020-03-19 Vitop Moulding S.R.L. Delivering tap with internal valve with flexible edges and multiple seals
WO2020210880A1 (en) * 2019-04-18 2020-10-22 Ourip Pty Ltd Tapping valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2278111A (en) * 1993-05-20 1994-11-23 Herbert Allen Kordan Adaptor.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313094B (de) * 1970-04-03 1974-01-25 Alumasc Ltd Zapfhahn
DE2716394A1 (de) * 1976-04-13 1977-11-10 Ver Edelstahlwerke Ag Zapfhahn
GB2168129A (en) * 1984-11-30 1986-06-11 Alumasc Ltd Dispense tap
DE3518000A1 (de) * 1985-05-18 1986-11-20 Winfried 8500 Nürnberg Rupp Bierzapfgeraet

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB826873A (en) * 1957-04-30 1960-01-27 Aerotaps Ltd Improvements relating to bib cocks, taps and valves
GB924710A (en) * 1959-03-06 1963-05-01 Francisco Branchadell Herrero Improvements in or relating to stop-cocks
GB1024422A (en) * 1961-06-26 1966-03-30 Sankey & Sons Ltd Joseph Improvements in or relating to containers or closures therefor
US3892384A (en) * 1974-04-12 1975-07-01 Honeywell Inc Double seated cage valve with flexible plug seat
GB2001146B (en) * 1977-07-14 1982-05-19 Smiths Industries Ltd Valve assemblies
JPS59500828A (ja) * 1982-05-07 1984-05-10 ウエルシユ，ウイリアム　チヤ−ルズ 改良されたデイスペンサ−・クロ−ジヤ−
CA1206924A (en) * 1983-03-30 1986-07-02 Paul F. Roos Tap
US4570665A (en) * 1984-12-10 1986-02-18 Ladish Co. Aseptic valve with unitary valve seat and lip seals
GB8516908D0 (en) * 1985-07-04 1985-08-07 Alumasc Ltd Liquid dispensing tap
US4665940A (en) * 1985-11-13 1987-05-19 Johnson Enterprises, Inc. Container fitting
WO1988001249A1 (en) * 1986-08-11 1988-02-25 Apv Burnett & Rolfe, Inc. Valve with safety vent seal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT313094B (de) * 1970-04-03 1974-01-25 Alumasc Ltd Zapfhahn
DE2716394A1 (de) * 1976-04-13 1977-11-10 Ver Edelstahlwerke Ag Zapfhahn
GB2168129A (en) * 1984-11-30 1986-06-11 Alumasc Ltd Dispense tap
DE3518000A1 (de) * 1985-05-18 1986-11-20 Winfried 8500 Nürnberg Rupp Bierzapfgeraet

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8902729U1 (de) * 1989-03-07 1989-05-11 Sieger Plastic GmbH, 5160 Düren Entleerungsvorrichtung für Behälter
EP0467530A2 (de) * 1990-06-20 1992-01-22 WADDINGTON & DUVAL LIMITED Verbesserung eines Zapfhahnes
EP0467530A3 (en) * 1990-06-20 1992-07-29 Waddington & Duval Limited Improvements in and relating to dispensing taps
WO2001002283A1 (en) * 1999-07-06 2001-01-11 Paul Roos Taps for liquid flow control
EP1385756A4 (de) * 2001-04-04 2006-01-25 Micro Matic U S A Korrosionsfeste flüssigkeitsextraktionsvorrichtung
EP1385756A1 (de) * 2001-04-04 2004-02-04 Micro Matic U.S.A. Korrosionsfeste flüssigkeitsextraktionsvorrichtung
JP2007537101A (ja) * 2004-05-14 2007-12-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 飲料ディスペンサのためのタップユニット
WO2005110912A1 (en) * 2004-05-14 2005-11-24 Koninklijke Philips Electronics N.V. Tap unit for a beverage dispenser
US7721921B2 (en) * 2004-05-14 2010-05-25 Koninklijke Philips Electronics N.V. Tap unit for a beverage dispenser
CN1953932B (zh) * 2004-05-14 2011-03-09 皇家飞利浦电子股份有限公司 饮料分配器的流出单元
WO2007034338A1 (en) * 2005-09-26 2007-03-29 Illinois Tool Works Inc. Tap
ITPR20110018A1 (it) * 2011-03-09 2012-09-10 Logicon S R L Tappo dispensatore di prodotto liquido e/o viscoso contenuto in sacchi flessibili tipo "bag in box"
EP2844608A4 (de) * 2012-04-30 2016-01-27 Liqui Box Corp Rohradapter zur verwendung für einen ventileinsatz zur ausgabe von flüssigkeiten
US9988258B2 (en) 2012-04-30 2018-06-05 Liqui-Box Corporation Tube fitment for use with a valve fitment for dispensing fluids
WO2020053904A1 (en) * 2018-09-14 2020-03-19 Vitop Moulding S.R.L. Delivering tap with internal valve with flexible edges and multiple seals
WO2020210880A1 (en) * 2019-04-18 2020-10-22 Ourip Pty Ltd Tapping valve
US11345586B2 (en) 2019-04-18 2022-05-31 Ourip Pty Ltd Tapping valve
AU2020259804B2 (en) * 2019-04-18 2024-04-04 Fore Holdings Pty Ltd Tapping valve

Also Published As

Publication number Publication date
GB8729752D0 (en) 1988-02-03
GB2200724B (en) 1991-08-07
GB2200724A (en) 1988-08-10
GB8630743D0 (en) 1987-02-04
AU8269687A (en) 1988-06-23
EP0272906A3 (de) 1988-07-27
ZA879506B (en) 1988-10-26
JPS63162468A (ja) 1988-07-06
AU606636B2 (en) 1991-02-14

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