US PATENT SUBCLASS 285 / 250
.~.~.~.~ Gland

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}
245  DF  .~.~.~ Screw-compressed {4}
250.~.~.~.~ Gland

DEFINITION

Classification: 285/250

(under subclass 245) Subject matter comprising a screw gland.

SEE OR SEARCH THIS CLASS, SUBCLASS:

356+, for a packed screw gland joint.

393+, for a screw gland joint.