US PATENT SUBCLASS 285 / 121.6
.~.~ Swiveling

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

120.1  DF  HAVING PLURAL INDEPENDENT PATHS {4}
121.1  DF  .~ Allowing relative motion of pipes {3}
121.6.~.~ Swiveling {1}
121.7  DF  .~.~.~> Ball and socket type

DEFINITION

Classification: 285/121.6

Swiveling:

(under subclass 121.1) Subject matter comprising a coupling which has a pivotal arc of less than 360 degrees, or accommodates precessional motion.