US PATENT SUBCLASS 285 / 216
.~.~.~ Expansible

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

189  DF  END TO SIDE OR PLATE (E.G., REINFORCEMENT) {11}
213  DF  .~ Gland {2}
215  DF  .~.~ External of conduit {1}
216.~.~.~ Expansible {1}
217  DF  .~.~.~.~> With conduit clamping means {1}

DEFINITION

Classification: 285/216

(under subclass 215) Subject matter including means to increase the external diameter of the thimble.