Patent ID: 6138995
Filing Date: 2000-10-31
Classification: B67D,Y10S

Abstract:
An apparatus for providing dispense of a beverage under pressure as often as about every 8 to 10 seconds, while maintaining a predetermined quantity of dissolved gas in the beverage, the apparatus comprising:(a) a contactor module containing hollow fiber membranes, the module having a gas side and a liquid side;(b) means for presenting the beverage at a predetermined pressure on the liquid side in the contactor module;(c) a first three-way valve connecting the gas side of the contactor module to either the atmosphere or a second three-way valve, the second three-way valve being connected to a first gas source to provide either high pressure gas or nominal pressure gas for controlling the pressure of a dissolving gas in the gas side of the contactor module; and(d) means for maintaining the gas containing beverage under pressure until dispense.