US PATENT SUBCLASS 277 / FOR 128
EXTERNALLY OPERATED ADJUSTMENT (277/126)

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

FOR 128EXTERNALLY OPERATED ADJUSTMENT (277/126) {3}
FOR 129  DF  .~> Fluid motor (277/127)
FOR 130  DF  .~> Circumferential band (277/128)
FOR 131  DF  .~> Acting along radius (277/129)

DEFINITION

Classification: 277/FOR.128

Foreign art collections comprising adjustable means operable exteriorly of a packing chamber or seat for biasing the packing into sealing engagement.