Anti-rebound and contact kicker means for circuit breaker

Details Anti-rebound and contact kicker means for circuit breaker Anti-rebound and contact kicker means for circuit breaker

1977-07-20

1979-03-13

Price, William

Electricity: circuit makers and breakers

Liquid contact

Time delay

200153H, 200153SC, 337345, H01H 346

Patent

active

041444272

ABSTRACT:
A single pole molded case circuit breaker having a spring powered trip free contact operating mechanism including an extendable toggle connected at one end to a releasable cradle and connected at the other end to a movable contact, a latch for holding the cradle in reset position, and an automatic trip means for operating the latch to release the cradle upon the occurrence of predetermined overload conditions, is provided with anti-rebound means which prevents the movable contact from moving toward closed circuit position except under the influence of the operating mechanism. The anti-rebound means includes engaging formations of the cradle and toggle which cooperate to block the toggle from being extended unless the cradle is in its reset position. As the cradle moves to trip position it engages the toggle to kick the contact arm toward open position.

REFERENCES:
patent: 3003046 (1961-10-01), Torre
patent: 3134879 (1964-05-01), Gauthier et al.
patent: 3158716 (1964-11-01), Koval
patent: 3293397 (1966-12-01), Zubaty et al.
patent: 3508178 (1970-04-01), Chabala et al.
patent: 3783215 (1974-01-01), Brumfield
patent: 3805199 (1974-04-01), Tazuki
patent: 3849751 (1974-11-01), Link et al.
patent: 4001742 (1977-01-01), Jencks et al.

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