US PATENT SUBCLASS 439 / 672
.~.~.~.~.~ Bayonet-coupling contact comprises cylindrically-shaped ring or shell

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}
670  DF  .~.~.~ Having coupling contact requiring successive relative motions in different directions to complete the coupling {1}
671  DF  .~.~.~.~ Having bayonet-coupling contact {2}
672.~.~.~.~.~ Bayonet-coupling contact comprises cylindrically-shaped ring or shell

DEFINITION

Classification: 439/672

Bayonet-coupling contact comprises cylindrical-shaped ring or shell:

(under subclass 671) Coupling part wherein the locking or

retaining contact, which requires the engaging motion between the coupling part and its mating coupling part to be first along the longitudinal coupling axis and then a partial turning about the said coupling axis, is further in the form of a short tube or shell-like member having a circularly-shaped cross-section, and wherein the coupling part either (a) is a plug in which the male portion thereof is in the form of a cylinder for insertion into the recess of the mating receptacle and the locking or retaining contact surrounds or forms the male portion of the plug, or (b) is a receptacle in which the female portion thereof is in the form of a cylindrically-shaped recess for receiving the male portion of the mating plug and the locking or retaining contact either is located within and forms the interior cylindrical surface of the female portion of the receptacle or forms the female portion of the receptacle.