US PATENT SUBCLASS 439 / 735
.~.~.~ Screw-threaded contact having mutilated, irregular, interrupted, or discontinuous screw thread

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  DF  .~.~ Annular or center contact secured to lamp-type insulating receptacle or base {1}
735.~.~.~ Screw-threaded contact having mutilated, irregular, interrupted, or discontinuous screw thread

DEFINITION

Classification: 439/735

Screw-threaded contact having mutilated, irregular, interrupted, or discontinuous screw thread:

(under subclass 734) Electrical connector wherein the contact attached or fastened to the insulating body is in the form of a cylindrically-shaped tube or shell, which cylindrically-shaped contact has screw threads disposed on a curved surface thereof for cooperating by means of a relative screw motion therebetween with screw threads or equivalent screw-thread-engaging means on the mating counter-contact of a mating connector, and wherein the screw threading disposed on the contact is broken, deformed, or of a noncontinuous helical configuration.

(1) Note. The discontinuity of the screw-threading on the cylindrically-shaped contact shell or tube may be due to the contact shell or tube being composed of an assembly of two or more separate sections which do not quite touch or align with one another when they are mounted together to form the cylindrical shape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

665, for a plural-contact coupling part in which one of the contacts thereof is a cylindrically-shaped tube or shell which carries screw threads thereon, and in which the screw-threading on the contact is mutilated, irregular, interrupted, or discontinuous.

802, for a screw-threaded lamp-shell type contact having a resilient or spring biased securing part, the screw-threading of which may be interrupted or discontinuous.