US PATENT SUBCLASS 277 / 339
.~.~.~.~ Expanded by wedging member

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  DF  .~.~.~ Packing sleeve {2}
339.~.~.~.~ Expanded by wedging member

DEFINITION

Classification: 277/339

Expanded by wedging member:

(under subclass 338) Packing sleeve includes a member having an inclined surface to radially bias the packing sleeve.