Spring biased movable laminated contact arm conductor assembly

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices

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200244, 218 22, H01H 7500

Patent

active

058748741

ABSTRACT:
The helical contact compression springs of a circuit breaker are preassembled in a contact clip for easier assembly of the circuit breaker. The bottom wall of an elongated trough formed by the clip is pierced by holes forming cylindrical protrusions extending into the trough. The clip is placed over the springs supported in a row in a fixture. A die head presses on the spring clip to compress all the springs and then simultaneously insert punches into the holes in the clip to expand the protrusions and secure the springs to the clip. The fixture includes a slide mounted on guides for movement between a loading position and an operating position under the die head. A support block is pivoted on the slide to present one of two sets of spring recesses for circuit breakers having different current ratings with the slide in the loading position.

REFERENCES:
patent: 4571565 (1986-02-01), Belbel et al.
patent: 5032813 (1991-07-01), Gula et al.
patent: 5337031 (1994-08-01), Castonguay et al.
patent: 5552754 (1996-09-01), Sharaf

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