Circuit breaker with push-to-trip button and trip bar

Details Circuit breaker with push-to-trip button and trip bar Circuit breaker with push-to-trip button and trip bar

1987-02-20

1987-12-15

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335175, 335 59, 335 42, H01H 900

Patent

active

047136391

ABSTRACT:
A push-to-trip button for a circuit breaker characterized by a circuit breaker within an insulating housing and having trip means for releasably holding a circuit breaker operating mechanism in an untripped position and including a trip bar biased in an untripped position, a trip delay member biased away from the trip bar and including an adjustment bar for applying a pressure on the member, a trip button extending through the housing and having a first surface contacting the trip bar, and the adjustment bar having a second surface for applying limited pressure on the trip button for holding the first surface in contact on the trip bar, without moving the trip bar to a tripped position.

REFERENCES:
patent: 3097277 (1963-07-01), Wingard et al.
patent: 3808567 (1974-04-01), Maier
patent: 3826951 (1974-07-01), Maier et al.
patent: 4553117 (1985-11-01), Schubring
patent: 4603312 (1986-07-01), Conner
patent: 4603313 (1986-07-01), Shimp et al.

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