US PATENT SUBCLASS 439 / 302
.~.~ Threaded coupling part

Current as of: June, 1999
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439 /   HD   ELECTRICAL CONNECTORS

296  DF  WITH COUPLING MOVEMENT-ACTUATING MEANS OR RETAINING MEANS IN ADDITION TO CONTACT OF COUPLING PART {15}
301  DF  .~ Retaining means requiring destruction of element before separation {1}
302.~.~ Threaded coupling part {1}
303  DF  .~.~.~> Requiring destruction of lamp envelope

DEFINITION

Classification: 439/302

Threaded coupling part:

(under subclass 301) Coupling part including a helically ribbed portion adapted to interfit with a portion of the mating part by relative rotation and corresponding axial advance thereof.