US PATENT SUBCLASS 285 / 244
.~.~.~ Spring

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

238  DF  NONMETAL TO METAL {1}
239  DF  .~ Internal member (e.g., sleeve or nipple) {2}
242  DF  .~.~ External clamp or holder {8}
244.~.~.~ Spring

DEFINITION

Classification: 285/244

(under subclass 242) Subject matter comprising a contractible spring that clamps the nonmetal member to the internal member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

318, for a coupling with a coil spring type essential catch.

321, for a coupling with a resilient expanding locking ring.