US PATENT SUBCLASS 439 / 663
.~.~.~.~.~ Screw-threaded center-contact type

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

625  DF  WITH INSULATION OTHER THAN CONDUCTOR SHEATH {10}
626  DF  .~ Plural-contact coupling part {7}
660  DF  .~.~ Plural-contact coupling part comprises receptacle or plug {12}
661  DF  .~.~.~ Having screw-thread-coupling contact {1}
662  DF  .~.~.~.~ Screw threads formed on cylindrical or annular contact {4}
663.~.~.~.~.~ Screw-threaded center-contact type

DEFINITION

Classification: 439/663

Screw-threaded center-contact type:

(under subclass 662) Coupling part wherein the cylindrically-shaped, screw-thread-coupling contact is disposed substantially on or at the longitudinal axis along which the coupling part engages its mating counterpart.

(1) Note. The screw-thread-coupling contact of a coupling part included in this subclass is usually the innermost of plural concentric contacts.