US PATENT SUBCLASS 285 / 321
.~ Resilient ring

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

305  DF  ESSENTIAL CATCH {7}
321.~ Resilient ring

DEFINITION

Classification: 285/321

(under subclass 305) Subject matter comprising an annular spring means carried by one member, said means coacting with a projection or groove on the other member upon change in shape or diameter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

276, for a swiveled pipe in socket joint including a resilient retainer ring.

340, for a packed coupling with a toggle ring-type wedge means.