US PATENT SUBCLASS 439 / 734
.~.~ Annular or center contact secured to lamp-type insulating receptacle or base

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

625  DF  WITH INSULATION OTHER THAN CONDUCTOR SHEATH {10}
733.1  DF  .~ Metallic connector or contact secured to insulation {10}
734.~.~ Annular or center contact secured to lamp-type insulating receptacle or base {1}
735  DF  .~.~.~> Screw-threaded contact having mutilated, irregular, interrupted, or discontinuous screw thread

DEFINITION

Classification: 439/734

Annular or center contact secured to lamp-type insulating receptacle or base:

(under subclass 733.1) Electrical connector wherein the insulating body has a contact attached or fastened thereto and is either (a) in the form of a receptacle having a cylindrical blind recess extending partially therein for receiving the cylindrical male portion of a mating plug of the type which carries a light-emitting device, or (b) in the form of a plug of the type which carries a light-emitting device and which carries a cylindrical male portion adapted to be received within the cylindrical recess of a mating receptacle; and wherein the contact is either (1) in the form of a cylindrically-shaped tube, shell, or ring and is symmetrically located within the cylindrical recess of the receptacle or symmetrically located on the exterior surface of the cylindrical male portion of the plug, or (2) in the form of a disc or button and is centrally located at the bottom of the cylindrical recess of the receptacle or centrally located on the end of the cylindrical male portion of the plug.

SEE OR SEARCH THIS CLASS, SUBCLASS:

613+, 641+, 649, 662+, 672, and 675, for a plural-contact plug or receptacle having at least one annular contact disposed concentrically around the longitudinal axis of engagement with its mating counterpart, such plug or receptacle usually also having an axial contact or another

annular contact coaxial with the longitudinal axis.