[특허]Beer dispensing system with gas pressure reservoir

Anheuser-Busch InBev S.A.

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Beer dispensing system with gas pressure reservoir

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-083/00
미국특허분류(USC)	222/399; 222/095; 222/105; 222/129.1; 222/386.5; 222/396; 222/400.7; 222/401
출원번호	UP-0536974 (2003-11-25)
등록번호	US-7810679 (2010-11-01)
우선권정보	GB-0227930.5(2002-11-29); GB-0227931.3(2002-11-29)
국제출원번호	PCT/IB2003/005399 (2003-11-25)
§371/§102 date	20051223 (20051223)
국제공개번호	WO04/050537 (2004-06-17)
발명자 / 주소	Wauters, Albert W. Anderson, Ian Duffy, Edward P.
출원인 / 주소	Anheuser-Busch InBev S.A.
대리인 / 주소	Levy & Grandinetti
인용정보	피인용 횟수 : 34 인용 특허 : 12

초록
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A home beer dispensing apparatus has a keg having a self-contained bag filled with a beer and a pressure system. The pressure system creates a pressurized air space between the keg inner walls and the bag to assist in the dispensing of the beer. The pressure system has a keg one-way air valve mounted to a top wall of the keg to permit entry of pressurized air into the keg. The pressure system has a pressure reservoir mounted in the dispensing apparatus outside the keg and in fluid flow communication with the keg one-way valve. The reservoir stores a charge of pressurized air and supplies at least a portion of this charge to the keg through the keg air valve when the dispensing apparatus is operated to dispense the beer. The reservoir provides a reserved charge of pressurized gas that is on hand to reduce dampening pressure fluctuations during beer dispensing which can result in beer frothing, especially during the early stages of beer dispensing when the air head space in the keg is small. Further, the apparatus may also have a pressure sensing system adapted to measure time rate of pressure change in the keg. The apparatus has a signaling device responsive to the time rate of pressure change in the keg to produce a signal related to volume of beer remaining in the bag. Preferably, the signal is displayed visually on the dispensing apparatus.

대표
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What is claimed is: 1. An alcohol beverage dispensing apparatus comprising: a keg having a self-contained bag filled with an alcohol beverage, said keg having a curved side wall; a pressure system adapted to maintain a gas pressure in the keg against the bag to assist in the dispensing of the beverage from the dispensing apparatus, the pressure system comprising: a keg gas valve mounted to the keg to permit entry of pressurized gas into the keg; a pressure reservoir having a curved wall adapted to surround in adjacent relation a portion of the curved side wall of the keg and which is mounted in the apparatus outside the keg and in fluid flow communication with the keg gas valve, the pressure reservoir storing a charge of pressurized gas and being adapted to supply at least a portion of the charge of pressurized gas into the keg through the keg gas valve when the dispensing apparatus is operated to dispense the beverage, wherein the pressure system further comprises a gas compressor connected with the pressure reservoir for charging the reservoir with pressurized gas prior to the dispensing apparatus being operated to dispense the beverage. 2. The apparatus of claim 1 wherein the gas is air. 3. The apparatus of claim 1 wherein the pressure system further comprises a pressure switch connected in fluid communication between the pressure reservoir and the keg gas valve, and the pressure switch enabling pressurized gas to flow from the reservoir into the keg through the keg gas valve when beverage is dispensed from the bag. 4. The apparatus of claim 1 wherein the compressor continues to charge the reservoir during dispensing of the beverage from the dispensing apparatus until air pressure in the pressure reservoir reaches a predetermined pressure level. 5. The apparatus of claim 1 wherein the compressor comprises a reciprocal pump adapted to draw gas into the pump on an intake stroke and adapted to force gas out of the pump during an out-take stroke. 6. The apparatus of claim 5 wherein the pump has a first one-way pump valve connected to the pump to permit gas to enter the pump and a second one-way pump valve connected to the pump to permit gas to exit the pump and remain in the pressure reservoir. 7. A home beer dispensing apparatus comprising: a keg having a curved side wall and a self-contained bag filled with a beer; a pressure system adapted to create a pressurized air space between the keg inner walls and the bag to assist in the dispensing of the beer from the dispensing apparatus, the pressure system comprising: a keg one-way air valve mounted to a top wall of the keg to permit entry of pressurized air into the keg; a pressure reservoir having a curved wall adapted to surround in adjacent relation a portion of the curved side wall of the keg and which is mounted in the apparatus outside the keg and in fluid flow communication with the keg one-way valve, the pressure reservoir storing a charge of pressurized air and being adapted to supply at least a portion of the charge of pressurized air to the keg through the keg air valve when the dispensing apparatus is operated to dispense the beverage; and, an air compressor connected with the pressurized reservoir for charging the reservoir with pressurized air. 8. The apparatus of claim 7 wherein the pressure system further comprises a pressure switch connected in fluid communication between the pressure reservoir and the keg air valve, and the pressure switch enabling pressurized air to flow from the reservoir into the keg through the keg air valve when beverage is dispensed from the bag. 9. The apparatus of claim 8 wherein the compressor continues to charge the reservoir during dispensing of the beer from the dispensing apparatus until air pressure in the pressure reservoir reaches a predetermined pressure level. 10. The apparatus of claim 7 wherein the compressor comprises a reciprocal pump adapted to draw air into the pump on an intake stroke and adapted to force air out of the pump and into the reservoir during an out-take stroke. 11. The apparatus of claim 10 wherein the pump has a first one-way pump valve connected to the pump to permit gas to enter the pump and a second one-way pump valve connected to the pump to permit gas to exit the pump and enter the pressure reservoir.

이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 34

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Beer dispensing system with gas pressure reservoir

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이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 34

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Beer dispensing system with gas pressure reservoir

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이 특허에 인용된 특허 (12)

이 특허를 인용한 특허 피인용횟수: 34

IPC 상위 출원인

상세정보조회

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IPC 상세정보(version : 201201)

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