Electrical connector switching module

Details Electrical connector switching module Electrical connector switching module

1976-12-17

1978-10-10

Lake, Roy

Geometrical instruments

174 73R, 200144R, 200149A, 339143T, H01R 1352

Patent

active

041193580

ABSTRACT:
A connector module for loadbreak operation having an insulating housing and a switch insert. The insert includes a container with a major portion of uniform diameter and a configuration such that the diameter does not increase from its outer end to its inner end, to permit the insert to be installed in the finished housing. Inside the container is a snuffer-contact assembly which has a bore lined with an ablative material. A bore contact having a gas port is attached to a snuffer tube of the assembly and has fixed to it a piston adapter for driving the snuffer-contact assembly toward the open end of the container tube in response to gas generated by arcing inside the bore. Resilient sliding contact means are fixed to the piston and press against the inside wall of the container tube to establish continuous electrical contact with it even while the piston is moving. A gas check valve member is resiliently seated against the inner side of the gas port and forms a gas retaining chamber in the inner end of the container. Keyways in the piston ride over longitudinal keyribs formed in the wall of the container to prevent rotation of the piston in the container. A nosepiece is threaded into an expanded end of the container tube. Matching opposing grooves about the outer perimeter of the snuffer tube and the inner wall of the container hold an open retaining ring which resiliently restrains the snuffer-contact assembly from axial movement in the container. An adapter ring rests against the inside shoulder of the container tube where the diameter becomes expanded, to change the shoulder configuration to a right angle. An O-ring gasket is fitted between the shoulder of the adapter and the end of the nosepiece to provide a seal between the container and the snuffer-contact assembly.

REFERENCES:
patent: 3920307 (1975-11-01), Burns
patent: 3989341 (1976-11-01), Ball

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