Supply of controlled medium-pressure CO.sub.2 gas in simple, con

Details Supply of controlled medium-pressure CO.sub.2 gas in simple, con Supply of controlled medium-pressure CO.sub.2 gas in simple, con

1989-10-18

1992-04-07

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Control element is fluid pressure sensitive

261DIG7, 422110, 422120, 422136, 422305, 426477, G05D 1604

Patent

active

051026279

ABSTRACT:
A gas generator chemically generates a gas from a chemical reaction between two reagents contained within a common container. The reagents are normally separated by a gas generation chamber into different regions of the container in the absence of gas generation therein. A reference pressure source of a predetermined pressure forces the two reagents into contact with each other when the pressure of gas in the gas generation chamber is less than the predetermined pressure. A valve in fluid communication with the gas generation chamber is provided to withdraw the generated gas from the chamber when OPEN. As the gas flows through the valve from the chamber the gas pressure in the chamber drops permitting more mixing of the reagents. When the chamber pressure becomes equal to or higher than the predetermined pressure applied by the reference pressure source, the reagents become separated again and gas generation ceases.

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