US PATENT SUBCLASS 277 / 544
.~.~.~ Having pressure balancing or radial bias reduction feature

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}
543  DF  .~.~ Segmented ring {4}
544.~.~.~ Having pressure balancing or radial bias reduction feature

DEFINITION

Classification: 277/544

Having pressure balancing or radial bias reduction feature:

(under subclass 543) Segmented ring including means to equalize fluid pressure forces acting on the segmented ring or means to generate a radially outwardly directed force to oppose a radially inwardly directed bias force.

SEE OR SEARCH THIS CLASS, SUBCLASS:

926, for a seal for other than a dynamic, segmented ring circumferentially contacting seal for other than a piston having pressure balancing or radial bias reducing means having means to create a fluid pressure equilibrium at a joint or juncture.

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,

131, for a plain radial bearing where fluid moves the seal, or subclass 479 for a radial antifriction bearing where the seal establishes a pressure or pressure responsive means loads the seal.