US PATENT SUBCLASS 277 / 507
.~.~.~.~ Partially spherical

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  DF  .~.~.~ Arcuate bearing surface {1}
507.~.~.~.~ Partially spherical

DEFINITION

Classification: 277/507

Partially spherical:

(under subclass 506) Arcuate bearing surface wherein the arcuate bearing surface is somewhat circular, ball-like, or round.

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,

145+, for a plain radial bearing where the seal conforms to a bearing surface that has a shape of sphere to permit angular or lateral movement.

403, Joints and Connections, for a joint or connection structure that goes beyond providing an environment for a seal;

135+, for a ball and socket that may have a seal at the bearing interface.