US PATENT SUBCLASS 277 / 343
.~ Seal (e.g., wiper, oil saver, stripper, etc.) accommodates irregular size of inner part

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

322  DF  SEAL FOR WELL APPARATUS {8}
343.~ Seal (e.g., wiper, oil saver, stripper, etc.) accommodates irregular size of inner part

DEFINITION

Classification: 277/343

Seal (e.g., wiper, oil saver, stripper, etc.) accommodates irregular size of inner part:

(under subclass 322) Seal for well apparatus wherein the seal surrounds and adjusts to an inside part (e.g., tubing, string, rod, etc.) having varying proportions and intended to clean by rubbing or pushing off adherent foreign matter.