US PATENT SUBCLASS 277 / 338
.~.~.~ Packing sleeve

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

322  DF  SEAL FOR WELL APPARATUS {8}
336  DF  .~ For below ground apparatus {1}
337  DF  .~.~ Longitudinally actuated packer {2}
338.~.~.~ Packing sleeve {2}
339  DF  .~.~.~.~> Expanded by wedging member
340  DF  .~.~.~.~> Particular wall structure {1}

DEFINITION

Classification: 277/338

Packing sleeve:

(under subclass 337) Longitudinally actuated packer wherein the seal has an elongated tubular form.

SEE OR SEARCH THIS CLASS, SUBCLASS:

585, for a dynamic, circumferential contacting, elongated sleeve or bushing for other than a piston.

607, for a sleeve-type, static contact seal intended for a pipe, conduit, or cable.