Pressure regulating valve for pressure driven beverage dispensing apparatuses
First Claim
1. A beverage dispensing apparatus for dispensing a beverage, said beverage dispensing apparatus comprising:
- a container for receiving a beverage,a pressure regulating valve, anda gas bottle or cartridge containing a pressurized propellant gas in fluid communication with said pressure regulating valve,wherein, the pressure regulating valve comprising;
a first and a second polymeric shells, the first shell comprising a gas inlet and outlet openings, and the second shell containing a resilient biasing element,a polymeric membrane clamped between the first and second shells, thus defining a first and a second chambers sealingly separated by the membrane, the polymeric membrane cooperating with the resilient biasing element and the gas inlet to control a pressure at which said pressurized propellant gas is injected into the container for driving said beverage out of the container, anda joint between the first and second polymeric shells, strong enough to withstand the pressures reigning in either chamber and ensuring fluid tightness between the first and second chambers; and
wherein, all polymeric components of said pressure regulating valve are made of the same polymer class.
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Accused Products
Abstract
Pressure regulating valve for controlling the pressure at which a pressurized propellant gas is injected into a container containing a liquid for driving said liquid out of the container, said valve comprising: A first and a second polymeric shells, the first shell comprising a gas inlet and outlet openings, and the second shell containing means for resiliency biasing. A polymeric membrane, clamped between the first and second shells, thus defining a first and a second chambers sealingly separated by the membrane. A joint between the first and second polymeric shells, strong enough to withstand the pressures reigning in either chamber and ensuring fluid tightness between the two chambers; wherein, all polymeric components of said pressure regulating valve are made of the same polymer class.
29 Citations
10 Claims
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1. A beverage dispensing apparatus for dispensing a beverage, said beverage dispensing apparatus comprising:
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a container for receiving a beverage, a pressure regulating valve, and a gas bottle or cartridge containing a pressurized propellant gas in fluid communication with said pressure regulating valve, wherein, the pressure regulating valve comprising; a first and a second polymeric shells, the first shell comprising a gas inlet and outlet openings, and the second shell containing a resilient biasing element, a polymeric membrane clamped between the first and second shells, thus defining a first and a second chambers sealingly separated by the membrane, the polymeric membrane cooperating with the resilient biasing element and the gas inlet to control a pressure at which said pressurized propellant gas is injected into the container for driving said beverage out of the container, and a joint between the first and second polymeric shells, strong enough to withstand the pressures reigning in either chamber and ensuring fluid tightness between the first and second chambers; and wherein, all polymeric components of said pressure regulating valve are made of the same polymer class. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification