Circuit breaker with self-adjusting armature

Details Circuit breaker with self-adjusting armature Circuit breaker with self-adjusting armature

1982-07-02

1984-10-23

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 23, 335174, H01H 7348

Patent

active

044791011

ABSTRACT:
A circuit breaker having an automatically adjusting magnetic armature is provided. The magnetic armature includes a spring-biasing means to automatically maintain one end of the armature in the contact with the electromagnet and the other end away from an adjacent electromagnet. The magnetic armature includes a pair of slightly curved arms which are disposed about a pivot guide post. When current through the circuit breaker exceeds a predetermined amount, the end of the armature normally biased away from the adjacent electromagnet is suddenly attracted to the electromagnet. The force from the spring-biasing means is overcome, and the slightly curved arms of the armature pivot about the pivot guide post so that the armature contacts the adjacent electromagnet. A latch holder at the end of the armature becomes disengaged from a latch means to cause the circuit breaker to open.

REFERENCES:
patent: 2732455 (1956-01-01), Ericson et al.
patent: 2902560 (1959-09-01), Stanback et al.
patent: 3171921 (1965-03-01), Woods
patent: 3275959 (1966-09-01), Locher
patent: 3288965 (1966-11-01), Klein
patent: 3488610 (1970-01-01), Powell
patent: 3950715 (1976-04-01), Bagalini et al.
patent: 4156219 (1979-05-01), Coleman

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