Resilient anti-rebound latch for circuit breaker contacts

Details Resilient anti-rebound latch for circuit breaker contacts Resilient anti-rebound latch for circuit breaker contacts

1977-07-20

1979-01-16

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335157, 335193, H01H 7500

Patent

active

041351355

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 a single resilient member which is positioned to block the toggle from being extended unless the cradle is in its reset position.

REFERENCES:
patent: 2932706 (1960-04-01), Bodenschatz
patent: 3072764 (1963-01-01), Frink
patent: 3263042 (1966-07-01), Dyer et al.

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