Contact assembly for a circuit breaker

Details Contact assembly for a circuit breaker Contact assembly for a circuit breaker

1988-10-26

1989-07-18

Cuchlinski, Jr., William A.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200251, H01H 938

Patent

active

048495891

ABSTRACT:
Apparatus for simultaneously applying two independent forces to the contact blades of a movable contact assembly. The contact assembly has three contact blades joined at the base. The circuit breaker mechanism exerts a closing force through a blade carrier to the center blade which in turn exerts a closing force on the outer main blades. To increase the contact force on the outside main blade contacts without increasing the contact force of the center blade contact and without changing the relative distances between the blade carrier and the main blade contacts and center blade contacts, a compression spring is positioned between each main blade and the blade carrier.

REFERENCES:
patent: 3134878 (1964-05-01), Jencks
patent: 3198924 (1965-08-01), Brumfield et al.
patent: 3263051 (1966-07-01), Gauthier et al.
patent: 3525837 (1970-08-01), Leonard
patent: 3662134 (1972-05-01), Cellerini

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