Combination valve and regulator with vented seat for use with pressurized gas cylinders, particularly oxygen cylinders
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United States of America Patent
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Jun 26, 2007
Grant Date -
Sep 22, 2005
app pub date -
Feb 28, 2005
filing date -
May 31, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen. A compressible o-ring is used to provide controllable sealed seating of the valve and regulator during operation. A system is provided in the valve-regulator apparatus for venting the o-ring seat elements, to minimize undesirable ballooning or extrusion otherwise resulting from dynamic pressures and changing forces due to rapid gas flows through the regulator.
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