US PATENT SUBCLASS 277 / 340
.~.~.~.~ Particular wall structure

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}
340.~.~.~.~ Particular wall structure {1}
341  DF  .~.~.~.~.~> Reinforcing feature

DEFINITION

Classification: 277/340

Particular wall structure:

(under subclass 338) Packing sleeve wherein the packing sleeve has specific construction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

334, for an inflatable packer for well apparatus having a particular wall structure.