US PATENT SUBCLASS 439 / 685
.~.~.~.~ Having only three prong-receiving recesses arranged to define apices of a triangle

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}
682  DF  .~.~.~ Receptacle for receiving plug having spaced, longitudinally engaging, prong-like contacts {4}
685.~.~.~.~ Having only three prong-receiving recesses arranged to define apices of a triangle

DEFINITION

Classification: 439/685

Having only three prong-receiving recesses arranged to define apices of a triangle:

(under subclass 682) Receptacle wherein the insulating body of the receptacle has three sockets or apertures extending therein parallel to the longitudinal axis of engagement of the coupling, the openings of the sockets or apertures being nonlinearly arranged across the coupling face of the receptacle; and wherein the receptacle has only three contacts, each of which is located either within or directly behind a said socket or aperture so that the fingerlike counter-contacts extending from the mating plug must be introduced within or passed through the sockets or apertures to complete the electrical coupling.