US PATENT SUBCLASS 251 / 362
.~.~.~ Compression or tension retained

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

356  DF  VALVE {5}
359  DF  .~ Seats {3}
360  DF  .~.~ Removable {3}
362.~.~.~ Compression or tension retained

DEFINITION

Classification: 251/362

(under subclass 360) Subject matter in which the retaining means comprises structure which biases the seat against the partition member by either tensional or compressional engagement with the valve body or casing at a point remote from the partition.