OVER-PRESSURE PROTECTION DEVICE
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United States of America Patent
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Issued Date -
Sep 27, 2012
app pub date -
Mar 23, 2011
filing date -
Mar 23, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An over-pressure protection device has a valve or valve body defining an inlet, a first flow path or cavity, and an outlet. A moveable member or plunger defines an internal flow path, and has at least one passage formed through a wall thereof. A sealing member forms a fluid-tight seal between the plunger and the valve, while a biasing member or spring acts between the valve and the plunger. The plunger is disposed within the first flow path of the valve and is movable between a closed position and an open position when exposed to pressurized fluid. In the closed position, the sealing member forms a seal between the plunger and the valve, preventing fluid communication between the inlet and the outlet, but does not form a seal when the device is in the open position, allowing fluid communication with the outlet. The plunger is biased by the biasing member toward the open position.
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