Pressure relief valve assembly
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United States of America Patent
Stats
-
Oct 11, 2005
Grant Date -
Jun 10, 2004
app pub date -
May 30, 2003
filing date -
Dec 10, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A relief valve assembly including a valve member, having inlet and outlet bores, for sliding movement within a valve body bore portion, having a cylindrical sleeve portion, journalled via a cylindrical sleeve bearing for substantially the entire axial extent thereof, with a valve member head portion having a plurality of equally spaced apertures, connecting the inlet bore and a sleeve portion central cavity with the outlet bore. An annular resilient seal, having a flat-faced sealing surface is retained in the valve member head portion for sealingly engaging a valve body valve seat portion. A compression member, for biasing the valve member to a closed position, is operatively interposed between an adjustment member piston portion and a valve member sleeve cavity, the adjustment member having an adjustment stem for external adjustment of the compression member. A radial end thrust bearing, is interposed between the compression member and the adjustment member.
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