US PATENT SUBCLASS 285 / 401
.~ Lugged pipe, rotary engagement


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

399  DF  SOCKET {3}
401.~ Lugged pipe, rotary engagement {1}
402  DF  .~.~> Bayonet slot


DEFINITION

Classification: 285/401

(under subclass 399) Subject matter wherein one member has a lateral projection adapted to engage a projection or recess in the other member when rotated to hold the members in coupled relation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73, for duplicate end couplings having rotary engagement.

292.1, for a molded joint with lug and slot interlock.

307, for a coupling with an essential catch operated by conduit motion.

360+, for similar structure with cam surfaces. 376+, for similar structure with packing.

391+, for interrupted-thread type couplings.