Pressure relief system with trigger activated valve
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United States of America Patent
Stats
-
Dec 23, 2003
Grant Date -
Dec 4, 2003
app pub date -
May 31, 2002
filing date -
May 31, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pressure relief system is provided to detect and abate an overpressure condition in a pressurized fluid. An actuator assembly establishes an overpressure path for the pressurized fluid when a pressure of the pressurized fluid reaches a predetermined level, and includes an extension sleeve which extends into a housing interior chamber along a selected axis. A pressure response assembly includes a pressure responsive member which mechanically fails when the pressure reaches the predetermined level and a trigger member which extends into the extension sleeve. Retention members (preferably ball bearings) are recessed within cavities formed in the housing to prevent axial movement of the extension sleeve prior to mechanical failure of the pressure responsive member, and thereafter allow axial movement of the extension sleeve upon failure of the pressure responsive member. Movement of the extension sleeve allows the actuator assembly to rotate a quarter-turn valve to an open or closed position.
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