Circuit breaker

Details Circuit breaker Circuit breaker

1999-03-08

2000-03-07

Friedhofer, Michael

Electricity: circuit makers and breakers

Toggle mechanisms

H01H 2300

Patent

active

060343419

ABSTRACT:
In response to the movement of a moving contact which can move with small force for a large distance until it contacts a stationary contact and requires large force to move for a small distance after the contacting, three cam means including a toggle roller and a toggle cam, a coupling shaft roller and a closing cam, and a closing cam and an operation lever roller, respectively are provided to effectively distribute the closing force of a closing spring.

REFERENCES:
patent: 3171938 (1965-03-01), Pokorny
patent: 3224280 (1965-12-01), May et al.
patent: 3517356 (1970-06-01), Hanafusa
patent: 4146765 (1979-03-01), Wilson
patent: 4409449 (1983-10-01), Takano et al.
patent: 4468533 (1984-08-01), Kodera et al.
patent: 4616198 (1986-10-01), Pardini
patent: 4645891 (1987-02-01), Changle
patent: 5571255 (1996-11-01), Baginski et al.
patent: 5747766 (1998-05-01), Waino et al.

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