US PATENT SUBCLASS 285 / 110
.~ Flexible lip

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

95  DF  WITH FLUID PRESSURE SEAL {11}
110.~ Flexible lip {1}
111  DF  .~.~> C-shaped section {1}

DEFINITION

Classification: 285/110

(under subclass 95) Devices comprising a sealing means having a thin lip-like edge, which is forced by line pressure into sealing contact with a pipe wall.