EP0759409B1 - Tapping head for drawing liquid under gas pressure, e.g. beer - Google Patents

Tapping head for drawing liquid under gas pressure, e.g. beer Download PDF

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Publication number
EP0759409B1
EP0759409B1 EP96112978A EP96112978A EP0759409B1 EP 0759409 B1 EP0759409 B1 EP 0759409B1 EP 96112978 A EP96112978 A EP 96112978A EP 96112978 A EP96112978 A EP 96112978A EP 0759409 B1 EP0759409 B1 EP 0759409B1
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EP
European Patent Office
Prior art keywords
piston
drink
beer
cylinder
thruster
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 - Lifetime
Application number
EP96112978A
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German (de)
French (fr)
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EP0759409A1 (en
Inventor
Rudolf Till
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Individual
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Individual
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Publication of EP0759409A1 publication Critical patent/EP0759409A1/en
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    • 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
    • B67D1/0841—Details
    • B67D1/0851—Details composed of a piston and ram assembly, e.g. tappet
    • 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
    • B67D1/0834—Keg connection means combined with valves with two valves disposed concentrically and having means for admitting a cleaning fluid

Definitions

  • the invention relates to a tap head according to the preamble of claim 1 to take a gas pressure standing liquid, for example beer.
  • such a distribution head for removing an under Liquid pressure from a container described gas pressure has an adapter for connection to the removal opening of a Barrel is determined, as well as a body attached to the adapter, about which is a cylinder, and a valve element which is opposite the Adapter, the body and the cylinder is vertically movable, the Body of the valve has a longitudinally extending channel.
  • the distributor head is in one Cylinder with a pressurized gas connection arranged a riser pipe that one inner channel connected to the line to the bar is.
  • the riser pipe is designed as a valve element and with a Cylinder movably arranged piston connected such that at Feeding the gas through the inlet into the piston a pressure on the Piston is applied to the valve element against its lower position to postpone.
  • valve element If the valve element is in the lowest position during operation, so moves the pressure of the penetrating into the channel or into the riser Flushing water a ball of a one-way valve in its lower position, in who places the ball against a sealing seat to prevent the To prevent rinsing water in the barrel. If the valve element against moved its lower position, and that when the gas in the Cylinder is inserted, the dip tube arranged in the barrel opens, and the gas enters the inside of the barrel through the inlet so that the beer can flow over the channel to the distributor. At the same time the Flush water inlet closed.
  • the known distributor head has several disadvantages. So it is first necessary that in order to move the piston Cylinder upwards a sufficiently strong pressure from the beverage container must be exerted on the valve. If this pressure does not occur with the required strength, the valve is not moved up, and mixing of the beer with rinse water occurs.
  • the present invention is therefore based on the object To avoid disadvantages of the known distributor head and one To create dispensing head of the type mentioned, with which the quick Inflow of the drink into the beer line, and thus foaming when changing the barrel, is prevented and that after rinsing in the Pipe existing water through the open tap Drink displaced and seamless, without disruption after the Water is displaced, can be tapped further.
  • the main advantage achieved that first a perfect separation between Water rinsing and beverage removal is achieved and that the dispensing head automatically with forced rinsing when changing barrels in the dispensing position is operated.
  • the dispensing head consists of a cylinder 1 with a compressed gas connection 2, in which a riser pipe 3 with a channel for the supply of drinks for serving is dispensed.
  • a housing 5 With the cylinder 1, a housing 5 is firmly connected, in which the riser pipe 3 extends.
  • the lower end 6 is connected to the beverage container, for example the barrel.
  • the housing 5 On the underside, the housing 5 has a CO 2 inlet 7 for the drink.
  • a piston 8 is arranged, which by increasing the Pressure in the cylinder chamber 9 downwards and by a coil spring 10 is movable upwards.
  • the piston 8 is with a sleeve-like tappet 11 connected, the sealing on the riser 3 and within the Housing 5 slides according to the position of the piston 8 and the has a water connection 4 on the side.
  • an annular gap 12 is formed, which - depending on the Position of the piston - continues up or down.
  • the riser pipe 3 has a conical sealing seat 13 on the underside, which with the inner conical recess 14 cooperates in the plunger 11. Furthermore, there are several bores 15 at the lower end of the riser pipe 3 intended.
  • the operation of the dispensing head according to the invention is as follows. As can be seen from FIG. 1, the dispensing head is shown in the dispensing position.
  • the cylinder chamber 9 is pressurized with CO 2 or another pressure medium via a 3/2-way pneumatic valve connected to the connection 2 by means of a hose. This compresses the spring 10 over the piston 8.
  • the plunger 11 moved downwards lifts off the riser pipe, so that the conical seal 13, 14 is open and the bores 15 for the beverage inlet 16 and the CO 2 inlet 7 to the beverage container are released.
  • the drink can flow out when the tap is open.
  • the cylinder chamber 9 is vented from CO 2 or another pressure medium via a 3/2-way pneumatic valve connected to the connection 2.
  • the piston 8 is pressed upwards by the spring 10 until it closes the riser pipe 3 with its conical sealing seat 13, 14.
  • the CO 2 inlet 7 in the housing 5 is closed.
  • the water inlet is connected to the riser pipe 3 via the annular gap 12, and the beverage line can be rinsed with water.

Abstract

In the cylinder space (9), a piston (8) is movable forwards and backwards by pressure gas. The piston loaded with a screw spring (10) is connected with a slidingly arranged socket-type thruster (11), between the housing and rise pipe (3), having, on its under side, a conical sealing seat (13) and holes (15). In the thruster issues a water connection (4) and connects a ring gap (12) in the tap position with the drink input feed (16) and in the flushing position with the water connection. The downwardly moved thruster lifts from the rise pipe, so that the conical seal (13,14) is open and the holes for drink input and the carbon dioxide feed (7) to the drink container is freed.

Description

Die Erfindung betrifft einen Zapfkopf gemäß Oberbegriff Anspruch 1 zur Entnahme einer unter Gasdruck stehenden Flüssigkeit, beispielsweise Bier.The invention relates to a tap head according to the preamble of claim 1 to take a gas pressure standing liquid, for example beer.

In der DE-OS 28 51 453 ist ein solcher Verteilerkopf zur Entnahme einer unter Gasdruck stehenden Flüssigkeit aus einem Behälter beschrieben, der einen Adapter aufweist, der zum Anschluß an die Entnahmeöffnung eines Fasses bestimmt ist, sowie einen am Adapter befestigten Körper, über dem ein Zylinder liegt, und ein Ventilelement, das gegenüber dem Adapter, dem Körper und dem Zylinder vertikal beweglich ist, wobei der Körper des Ventils einen in Längsrichtung erstreckenden Kanal aufweist. Bei der vorbekannten Ausführungsform des Verteilerkopfs ist in einem Zylinder mit Druckgasanschluß ein Steigrohr angeordnet, das einen inneren Kanal aufweist, der mit der Leitung zum Ausschank verbunden ist. Das Steigrohr ist aber als Ventilelement ausgebildet und mit einem im Zylinder beweglich angeordneten Kolben derart verbunden, daß bei Zuführung des Gases über den Einlaß in den Kolben ein Druck auf den Kolben ausgeübt wird, um das Ventilelement gegen seine untere Stellung zu verschieben.In DE-OS 28 51 453, such a distribution head for removing an under Liquid pressure from a container described gas pressure has an adapter for connection to the removal opening of a Barrel is determined, as well as a body attached to the adapter, about which is a cylinder, and a valve element which is opposite the Adapter, the body and the cylinder is vertically movable, the Body of the valve has a longitudinally extending channel. In the previously known embodiment of the distributor head is in one Cylinder with a pressurized gas connection arranged a riser pipe that one inner channel connected to the line to the bar is. The riser pipe is designed as a valve element and with a Cylinder movably arranged piston connected such that at Feeding the gas through the inlet into the piston a pressure on the Piston is applied to the valve element against its lower position to postpone.

An der Unterseite des mit dem Grundkörper verbundenen Zylinders ist ein Wasseranschluß zur Spülung der Anordnung und ein CO2-Zulauf für das Getränk angeordnet.On the underside of the cylinder connected to the base body there is a water connection for flushing the arrangement and a CO 2 inlet for the drink.

Befindet sich im Betrieb das Ventilelement in der untersten Stellung, so bewegt der Druck des in den Kanal bzw. in das Steigrohr eindringenden Spülwassers eine Kugel eines Einwegventils in seine untere Stellung, in der sich die Kugel gegen einen Dichtsitz anlegt, um einen Eintritt des Spülwassers in das Faß zu verhindern. Wird das Ventilelement gegen seine untere Stellung verschoben, und zwar dann, wenn das Gas in den Zylinder eingebracht wird, öffnet sich das im Faß angeordnete Tauchrohr, und das Gas gelangt über den Einlaß in das Faßinnere, so daß das Bier über den Kanal zum Verteiler strömen kann. Gleichzeitig wird der Spülwassereinlaß geschlossen.If the valve element is in the lowest position during operation, so moves the pressure of the penetrating into the channel or into the riser Flushing water a ball of a one-way valve in its lower position, in who places the ball against a sealing seat to prevent the To prevent rinsing water in the barrel. If the valve element against moved its lower position, and that when the gas in the Cylinder is inserted, the dip tube arranged in the barrel opens, and the gas enters the inside of the barrel through the inlet so that the beer can flow over the channel to the distributor. At the same time the Flush water inlet closed.

Der vorbekannte Verteilerkopf weist jedoch verschiedene Nachteile auf. So ist es zunächst erforderlich, daß zum Bewegen des Kolbens im Zylinder nach oben ein ausreichend starker Druck vom Getränkebehälter auf das Ventil ausgeübt werden muß. Erfolgt dieser Druck nicht mit der erforderlichen Stärke, so wird das Ventil nicht nach oben bewegt, und eine Vermischung des Biers mit Spülwasser tritt ein.The known distributor head, however, has several disadvantages. So it is first necessary that in order to move the piston Cylinder upwards a sufficiently strong pressure from the beverage container must be exerted on the valve. If this pressure does not occur with the required strength, the valve is not moved up, and mixing of the beer with rinse water occurs.

Außerdem tritt beim Wechsel der Getränkbehälter folgendes Problem auf. Wird ein Getränkebehälter leergezapft, so daß die Getränkeleitung nur noch mit Fördergas gefüllt ist, und wird dann ein voller Getränkebehälter an diese mit Fördergas gefüllte Getränkeleitung angeschlossen, wird das Getränk über den Förderdruck mit hoher Geschwindigkeit in die mit Fördergas gefüllte Getränkeleitung gepreßt und schäumt dadurch stark auf. Dies führt zu Schankstörungen bei jedem Behälterwechsel, was zu Schank- und Qualitätsverlust führt.In addition, the following problem occurs when changing the beverage container. A beverage container is tapped so that the beverage line only is still filled with production gas, and then becomes a full beverage container connected to this beverage line filled with conveying gas, that is Beverage over the delivery pressure at high speed in the with Conveying gas filled beverage line is pressed and foams strongly on. This leads to dispensing problems with every container change, which leads to Leakage and loss of quality leads.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, die Nachteile des vorbekannten Verteilerkopfes zu vermeiden und einen Zapfkopf der eingangs genannten Art zu schaffen, mit dem das schnelle Einströmen des Getränks in die Bierleitung, und somit das Aufschäumen beim Faßwechsel, verhindert wird und das nach dem Spülen in der Leitung vorhandene Wasser beim geöffneten Zapfhahn durch das Getränk verdrängt und nahtlos, ohne Schankstörung, nachdem das Wasser verdrängt ist, weitergezapft werden kann.The present invention is therefore based on the object To avoid disadvantages of the known distributor head and one To create dispensing head of the type mentioned, with which the quick Inflow of the drink into the beer line, and thus foaming when changing the barrel, is prevented and that after rinsing in the Pipe existing water through the open tap Drink displaced and seamless, without disruption after the Water is displaced, can be tapped further.

Zur Lösung der gestellten Aufgabe wird ein Zapfkopf gemäß Schutzanspruch 1 vorgeschlagen. To solve the problem, a tap head is according to Protection claim 1 proposed.

Mit dem Zapfkopf gemäß der Erfindung wird der wesentliche Vorteil erreicht, daß zunächst eine einwandfreie Trennung zwischen Wasserspülung und Getränkentnahme erzielt wird, und daß der Zapfkopf automatisch mit Zwangsspülung beim Faßwechsel in Schankposition betätigt wird.With the dispensing head according to the invention the main advantage achieved that first a perfect separation between Water rinsing and beverage removal is achieved and that the dispensing head automatically with forced rinsing when changing barrels in the dispensing position is operated.

Anhand der Zeichnungen soll am Beispiel einer bevorzugten Ausführungsform der Zapfkopf gemäß der Erfindung näher erläutert werden.Using the drawings, the example of a preferred Embodiment of the tap head according to the invention explained in more detail become.

In den Zeichnungen zeigt

  • Fig. 1
    einen Zapfkopf im Schnitt in der Schankposition.
  • Fig. 2
    zeigt einen Zapfkopf im Schnitt in der Faßwechsel- oder Spülposition.
    • In the drawings shows
  • Fig. 1
    a tap head on average in the dispensing position.
  • Fig. 2
    shows a tap head in section in the barrel change or rinsing position.

    • Wie sich aus Fig. 1 ergibt, besteht der Zapfkopf gemäß der Erfindung aus einem Zylinder 1 mit einem Druckgasanschluß 2, in dem ein Steigrohr 3 mit einem Kanal für die Getränkezufuhr zum Ausschank fest angeordnet ist. Mit dem Zylinder 1 ist ein Gehäuse 5 fest verbunden, in welches das Steigrohr 3 reicht. Das untere Ende 6 wird mit dem Getränkebehälter, beispielsweise dem Faß, verbunden. An der Unterseite weist das Gehäuse 5 einen CO2-Zulauf 7 für das Getränk auf.As can be seen from Fig. 1, the dispensing head according to the invention consists of a cylinder 1 with a compressed gas connection 2, in which a riser pipe 3 with a channel for the supply of drinks for serving is dispensed. With the cylinder 1, a housing 5 is firmly connected, in which the riser pipe 3 extends. The lower end 6 is connected to the beverage container, for example the barrel. On the underside, the housing 5 has a CO 2 inlet 7 for the drink.

    Im Zylinder 1 ist ein Kolben 8 angeordnet, der durch Erhöhung des Drucks im Zylinderraum 9 nach unten und durch eine Schraubenfeder 10 nach oben bewegbar ist. Der Kolben 8 ist mit einem hülsenartigen Stößel 11 verbunden, der dichtend auf dem Steigrohr 3 und innerhalb des Gehäuses 5 entsprechend der Stellung des Kolbens 8 gleitet und der seitlich einen Wasseranschluß 4 aufweist. Zwischen dem Steigrohr 3 und dem Stößel 11 wird ein Ringspalt 12 gebildet, der sich - je nach der Stellung des Kolbens - nach oben oder unten fortsetzt. Das Steigrohr 3 weist an der Unterseite einen konischen Dichtsitz 13 auf, der mit der inneren konischen Aussparung 14 im Stößel 11 zusammenarbeitet. Ferner sind am unteren Ende des Steigrohres 3 mehrere Bohrungen 15 vorgesehen.In the cylinder 1, a piston 8 is arranged, which by increasing the Pressure in the cylinder chamber 9 downwards and by a coil spring 10 is movable upwards. The piston 8 is with a sleeve-like tappet 11 connected, the sealing on the riser 3 and within the Housing 5 slides according to the position of the piston 8 and the has a water connection 4 on the side. Between the riser pipe 3 and the plunger 11 an annular gap 12 is formed, which - depending on the Position of the piston - continues up or down. The riser pipe 3 has a conical sealing seat 13 on the underside, which with the inner conical recess 14 cooperates in the plunger 11. Furthermore, there are several bores 15 at the lower end of the riser pipe 3 intended.

    Die Funktionsweise des Zapfkopfes gemäß der Erfindung läuft wie folgt ab. Wie sich aus Fig. 1 ergibt, ist der Zapfkopf in der Schankposition dargestellt. Der Zylinderraum 9 ist über ein am Anschluß 2 mittels eines Schlauches angeschlossenen 3/2Wege-Pneumatikventils mit CO2 oder einem anderen Druckmedium beaufschlagt. Dadurch wird die Feder 10 über dem Kolben 8 zusammengepreßt. Der nach unten bewegte Stößel 11 hebt vom Steigrohr ab, so daß die konische Dichtung 13, 14 offen ist und die Bohrungen 15 für den Getränkezulauf 16 und den CO2-Zulauf 7 zum Getränkebehälter freigegeben wird. Das Getränk kann bei geöffnetem Zapfhahn ausfließen.The operation of the dispensing head according to the invention is as follows. As can be seen from FIG. 1, the dispensing head is shown in the dispensing position. The cylinder chamber 9 is pressurized with CO 2 or another pressure medium via a 3/2-way pneumatic valve connected to the connection 2 by means of a hose. This compresses the spring 10 over the piston 8. The plunger 11 moved downwards lifts off the riser pipe, so that the conical seal 13, 14 is open and the bores 15 for the beverage inlet 16 and the CO 2 inlet 7 to the beverage container are released. The drink can flow out when the tap is open.

    Wie sich aus Fig. 2 ergibt, in der der Zapfkopf im Schnitt in der Faßwechsel- oder Spülposition dargestellt ist, wird der Zylinderraum 9 über ein am Anschluß 2 angeschlossenes 3/2Wege-Pneumatikventil von CO2 oder einem anderen Druckmedium entlüftet. Dadurch wird der Kolben 8 von der Feder 10 so lange nach oben gedrückt, bis er das Steigrohr 3 mit seinem konischen Dichtsitz 13, 14 verschließt. Gleichzeitig wird der CO2-Zulauf 7 im Gehäuse 5 verschlossen. Der Wasserzulauf ist über den Ringspalt 12 mit dem Steigrohr 3 verbunden, und die Getränkeleitung kann mit Wasser gespült werden.As can be seen from FIG. 2, in which the dispensing head is shown in section in the barrel change or flushing position, the cylinder chamber 9 is vented from CO 2 or another pressure medium via a 3/2-way pneumatic valve connected to the connection 2. As a result, the piston 8 is pressed upwards by the spring 10 until it closes the riser pipe 3 with its conical sealing seat 13, 14. At the same time, the CO 2 inlet 7 in the housing 5 is closed. The water inlet is connected to the riser pipe 3 via the annular gap 12, and the beverage line can be rinsed with water.

    Wird nun das Faß gewechselt und das 3/2Wege-Pneumatikventil geöffnet, strömt das Gas in den Zylinderraum 9 und drückt den Kolben 8 gegen die Feder 10 nach unten, wodurch der Dichtsitz 13, 14 geöffnet wird und das Getränk die im Kanal 4 stehende Wassersäule herausdrückt. Dabei tritt keine Vermischung zwischen dem Getränk und dem Spülwasser ein. Das Wasser wird so beim geöffneten Zapfhahn durch das Getränk verdrängt, und es kann nahtlos, ohne Schankstörungen, nachdem das Wasser verdrängt ist, weitergezapft werden.Now the barrel is changed and the 3/2-way pneumatic valve opened, the gas flows into the cylinder space 9 and presses the piston 8 against the spring 10 downwards, whereby the sealing seat 13, 14 opened and the drink is the water column in channel 4 pushes out. There is no mixing between the drink and the rinse water. This way the water becomes when the tap is open displaced by the drink and it can be seamless without Tap disturbances continue to be drawn after the water has been displaced become.

    Claims (1)

    1. Tapping head for drawing liquid under pressure, such as beer, consisting of an ascending tube (3) arranged in a cylinder (1) with pressurised gas connection (2), a casing (5) connected to the ascending tube and having a CO2 feed line (7) for the drink wherein a piston (8) in the cylinder space (9) can be moved by admission or extraction of pressurised gas, characterised in that the piston (8) under pressure from a coiled spring (10) is connected with a sliding tube in the form of a sleeve (11) between the casing (5) and the ascending tube (3) having at the bottom a conical seating seal (13) and apertures (15), in which slide tube there is the aperture of a water connection (4) and which also connects an annular gap (12) with the drink feed line (16) in the tapping position and with the water connection (4) in the flushing position.
    EP96112978A 1995-08-17 1996-08-13 Tapping head for drawing liquid under gas pressure, e.g. beer Expired - Lifetime EP0759409B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE29513213U DE29513213U1 (en) 1995-08-17 1995-08-17 Dispensing head for withdrawing a liquid under gas pressure, e.g. beer
    DE29513213U 1995-08-17

    Publications (2)

    Publication Number Publication Date
    EP0759409A1 EP0759409A1 (en) 1997-02-26
    EP0759409B1 true EP0759409B1 (en) 1999-03-31

    Family

    ID=8011880

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96112978A Expired - Lifetime EP0759409B1 (en) 1995-08-17 1996-08-13 Tapping head for drawing liquid under gas pressure, e.g. beer

    Country Status (4)

    Country Link
    EP (1) EP0759409B1 (en)
    AT (1) ATE178285T1 (en)
    DE (2) DE29513213U1 (en)
    DK (1) DK0759409T3 (en)

    Families Citing this family (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE29519783U1 (en) * 1995-12-13 1996-10-10 Till Rudolf Dispensing head for withdrawing a liquid under gas pressure, e.g. beer
    DE19841954B4 (en) 1998-09-14 2006-06-14 Sparkasse Bühl Tap head for removing a liquid under gas pressure, for example beer
    DE29918785U1 (en) 1999-10-25 2000-01-13 Ipe Engineering Gmbh Device for cleaning a dispensing head arrangement for removing beverages under gas pressure
    DE29919626U1 (en) 1999-11-09 2000-01-20 Ipe Engineering Gmbh Dispensing head for removing beverages under gas pressure
    NL1017742C2 (en) * 2001-03-30 2002-10-03 Heineken Tech Services Device and method for connecting a container to a pressure source.
    US20060097003A1 (en) * 2004-11-09 2006-05-11 Joerg Emmendoerfer Chemical dispense system for cleaning components of a fluid dispensing system
    US7311224B2 (en) 2004-11-09 2007-12-25 Ecolab Inc. Chemical dispense system for cleaning components of a fluid dispensing system
    EP2253581A1 (en) * 2009-05-19 2010-11-24 Vico Sanitation Research B.V. Method and device for connecting a discharge conduit to a liquid storage container
    DE102017129912B3 (en) * 2017-10-27 2019-01-03 Dsi Getränkearmaturen Gmbh Tap head with 3/2 way valve

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2398019A1 (en) * 1977-07-18 1979-02-16 Verbeemen Werkhuizen Beverage tap cleansing device - incorporates head containing double:acting piston and hollow housing with displaceable, externally recessed cock
    IE47360B1 (en) * 1977-11-30 1984-02-22 Lambrechts Pvba Konstr Improvements in or relating to dispensing heads
    BE1003668A6 (en) * 1990-02-20 1992-05-19 Pierre Antoine Soc De Personne Extraction device and flush for beer flow.

    Also Published As

    Publication number Publication date
    ATE178285T1 (en) 1999-04-15
    DK0759409T3 (en) 1999-10-11
    DE59601542D1 (en) 1999-05-06
    EP0759409A1 (en) 1997-02-26
    DE29513213U1 (en) 1995-10-19

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