Pressure relief valve
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United States of America Patent
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-
N/A
Issued Date -
Feb 14, 2002
app pub date -
Jun 26, 2001
filing date -
Aug 1, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A fluid pressure relief valve has an aperture for the flow through of a fluid, the aperture being disposed between a fluid inlet and a fluid outlet. A movably mounted valve element is disposed for pressure communication with the fluid and is movable to unseal the aperture when an opening force exerted by the communicated fluid pressure on the valve element exceeds a counteracting threshold force. A biasing source provides a bias force for moving the valve element toward sealing the aperture. The valve element is disposed for pressure communication with the fluid such that a closing force less than and counter to the opening force is additionally exerted on the valve element by the communicated fluid pressure. This force in combination with the bias force generates the threshold force.
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