Circuit breaker contact arm with variable force pivot

Details Circuit breaker contact arm with variable force pivot Circuit breaker contact arm with variable force pivot

1985-06-05

1987-02-17

Artis, Henry K.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 346

Patent

active

046441212

ABSTRACT:
A circuit breaker characterized by a movable contact carrying arm movable about a pivot and a helical torsion spring movable on the arm to and from the pivot for applying a varying force as the arm moves from closed to open positions.

REFERENCES:
patent: 3600539 (1971-08-01), Walker et al.
patent: 4472701 (1984-09-01), Bellows et al.
patent: 4480242 (1984-10-01), Castonguay et al.
patent: 4539538 (1985-09-01), Flick et al.

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