US PATENT SUBCLASS 277 / 506
.~.~.~ Arcuate bearing surface

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}
503  DF  .~.~ Accommodates gyratory or oscillatory motion {4}
506.~.~.~ Arcuate bearing surface {1}
507  DF  .~.~.~.~> Partially spherical

DEFINITION

Classification: 277/506

Arcuate bearing surface:

(under subclass 503) Accommodates gyratory or oscillatory motion wherein the seal or one of the relatively movable parts has a curved bearing surface.