Patent ID: 6478046
Filing Date: 2002-11-12
Classification: G05D,Y10T

Abstract:
A regulator for receiving high pressure gas from a gas source and outputting lower pressure gas, the regulator comprising:a hollow valve body having a coupling portion unitary therewith, the coupling portion being adapted for sealed connection to the gas source, the valve body defining a fill port, an output port, an inner plug chamber and discharge and inlet openings in the coupling portion, each in communication with the gas source, the valve body also defining a first confined flow passageway in communication between the plug chamber and the discharge opening, the valve body further defining a second confined flow passageway in communication between the fill port and the inlet opening; and a valve mechanism in the valve body for controlling the flow of gas from the gas source to the output port, the valve mechanism including a regulator seat, a monolighic polymeric valve plug positioned in the plug chamber and movable therein for sealing engagement with the regulator seat, a fluid barrier axially movable with respect to the valve body and together with the regulator seat defining a plenum chamber in communication with the output port, and a biasing actuator urging the fluid barrier toward the regulator seat.