US PATENT SUBCLASS 439 / 320
.~.~ Threaded ring or ring adapted to engage threaded mating 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}
312  DF  .~ Coupling part with relatively pivotable concentric movement-actuating or retaining ring {3}
320.~.~ Threaded ring or ring adapted to engage threaded mating part {3}
321  DF  .~.~.~> With means to prevent unthreading
322  DF  .~.~.~> Coupling part having concentric contacts
323  DF  .~.~.~> Adapter

DEFINITION

Classification: 439/320

Threaded ring or ring adapted to engage threaded mating part:

(under subclass 312) Coupling part wherein the encompassing member includes a helically ribbed surface intended to mate with a corresponding surface of the mating part; or wherein the encompassing member includes a portion intended to mate with a helically ribbed surface of the mating part; so that the parts are drawn or held together by rotation of the encompassing member.