Rapid opening gas valve
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United States of America Patent
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May 19, 2015
Grant Date -
Sep 20, 2012
app pub date -
Mar 18, 2011
filing date -
Mar 18, 2011
priority date (Note) -
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Abstract
A pneumatically operated gas valve includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir may be formed in the cylinder between the piston and the closed end of the cylinder. Means for filling the control reservoir with gas to a control pressure may be provided so that the control pressure acting against the piston may close the gas valve. A release valve may be opened to allow the gas in the control reservoir to escape through an exhaust port to open the gas valve.
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