US PATENT SUBCLASS 277 / 334
.~.~ 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}
331  DF  .~ Inflatable packer {3}
334.~.~ Particular wall structure

DEFINITION

Classification: 277/334

Particular wall structure:

(under subclass 331) Inflatable packer wherein the expanded portion of the sealing means or the sealing means biased by the expandable member has specific construction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

340+, for a longitudinally actuated packing sleeve for below ground well apparatus having a particular wall structure.