US PATENT SUBCLASS 277 / 337
.~.~ Longitudinally actuated packer

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.~.~ Longitudinally actuated packer {2}
338  DF  .~.~.~> Packing sleeve {2}
342  DF  .~.~.~> Plural stacked rings

DEFINITION

Classification: 277/337

Longitudinally actuated packer:

(under subclass 336) Below ground apparatus wherein the seal's intended use is between axially spaced members and biased into sealing engagement by axial movement of at least one of the members.