US PATENT SUBCLASS 285 / 276
.~.~ With ball, ring or pin detent

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

272  DF  SWIVEL {5}
275  DF  .~ Pipe in socket type {2}
276.~.~ With ball, ring or pin detent {1}
277  DF  .~.~.~> With manipulator

DEFINITION

Classification: 285/276

(under subclass 275) Devices in which a retaining fastener comprising ball, ring, or pin detent means engages a groove in one of the pipe sections to maintain the other pipe section in rotatable engagement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

305+, for a coupling comprising a catch means essential to holding the joined members in coupled relation. See the Search Notes thereunder.

415, for a joint including a split ring as a detachable flange.