US PATENT SUBCLASS 277 / 652
.~.~.~ Distinct sheath or covering

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

590  DF  SEAL BETWEEN FIXED PARTS OR STATIC CONTACT AGAINST RELATIVELY MOVABLE PARTS {3}
628  DF  .~ Contact seal for other than internal combustion engine, or pipe, conduit, or cable {9}
650  DF  .~.~ Particular sealing material or construction {3}
652.~.~.~ Distinct sheath or covering {1}
653  DF  .~.~.~.~> Metal

DEFINITION

Classification: 277/652

Distinct sheath or covering:

(under subclass 650) Particular sealing material or construction wherein the seal has a distinct casing or layer surrounding at least a major portion of an outer periphery of the seal.