US PATENT SUBCLASS 277 / 514
.~.~.~.~ Drain, pressure relief, or vent

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

345  DF  SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL) {10}
500  DF  .~ Circumferential contact seal for other than piston {13}
510  DF  .~.~ Contained or compressed by gland member in packing box {10}
512  DF  .~.~.~ Fluid introducer or director {5}
514.~.~.~.~ Drain, pressure relief, or vent

DEFINITION

Classification: 277/514

Drain, pressure relief or vent:

(under subclass 512) Fluid introduction or director including means to direct fluid away from or for alleviating fluid stress or strain.

SEE OR SEARCH THIS CLASS, SUBCLASS:

928, for a seal having a pressure relief or venting feature for other than a dynamic circumferential contact seal, for other than a piston intended to be in a packing box contained or compressed by a gland member and having a drain, pressure relief, or vent feature.

SEE OR SEARCH CLASS

384, Bearings, for more than nominal bearing structure or detail (e.g., liner, bearing race, cage, etc.) combined with a specific seal,

479, for a radial antifriction bearing where the seal

establishes a pressure or pressure responsive means to load the seal.