Fault-closable electrical connector

Details Fault-closable electrical connector Fault-closable electrical connector

1976-08-16

1978-05-09

Lake, Roy

Geometrical instruments

H01R 1352

Patent

active

040883833

ABSTRACT:
A current responsive, gas-actuated bushing plug connector, for use with elbow connectors having a male electrode extending therefrom, is disclosed. The bushing plug includes an elastomeric housing in which a cylindrical, silver-plated insert body is coaxially mounted. The axially inner end of the insert body includes a threaded fastener for connection to an external circuit, and is thereby terminated to provide an enclosed chamber which opens at the other end of the insert body toward the mouth of the bushing plug. A removable and generally cylindrical piston assembly is slidably and coaxially mounted within the insert body. The removable assembly includes a metallic piston member having an annular piston head facing the inner end of the insert body and which encloses the chamber except at the axial bore of the piston member. A fixed minimum volume chamber is ensured by means of a stepped transition in the insert body which is spaced apart from the enclosed end thereof and which engages the circumferential portion of the piston head to limit the inward translation of the piston assembly. A garter spring encircles the piston member in a recessed groove therein. A cylindrical member of arc-responsive material which is removably fastened to the piston member, extends toward the mouth of the bushing plug and completes the external dimensions of the piston assembly. A tubular female contact is press-fitted within the assembly coaxially with the through-bore therein. The outer end of the female contact extends coaxially into the arc-responsive member in radially spaced-apart relationship therewith. A tubular insert tip member is mounted at the mouth of the bushing plug and is removably fastened to the outer end of the insert body. The tip member provides a stop member to limit the outward translation of the piston assembly.

REFERENCES:
patent: 3945699 (1976-03-01), Westrom
patent: 3957332 (1976-05-01), Lambert
patent: 3958855 (1976-05-01), Oakes

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