Circuit breaker having improved movable crossbar and spring hold

Details Circuit breaker having improved movable crossbar and spring hold Circuit breaker having improved movable crossbar and spring hold

1977-06-03

1979-01-30

Gorenstein, Charles

Electricity: circuit makers and breakers

Liquid contact

Time delay

200153G, 200244, H01H 128, H01H 342

Patent

active

041374371

ABSTRACT:
A circuit breaker including stationary contact means and a plurality of movable contacts operable between open and closed positions with respect to the stationary contact means. A plurality of contact springs engages the movable contacts, and the contact springs increase the engagement pressure between the stationary contact means and movable contacts when the movable contacts are in the closed position. A contact carrier engages the movable contacts, and holds them such that the movable contacts operate together between the open and closed positions. A crossbar and spring holder is secured to the contact carrier and has a plurality of openings therein for holding the contact springs and an aperture therethrough through which is disposed a cross arm. The cross arm extends outwardly from the crossbar and spring holder, and moves upon movement of the crossbar and spring holder, the contact carrier and the movable contacts. Also included are means engaging the cross arm for effecting relative movement of the cross arm to move the movable contacts between the open and closed positions.

REFERENCES:
patent: 3254186 (1966-05-01), Fischer
patent: 3268702 (1966-08-01), Gryctko
patent: 3365561 (1968-01-01), Jencks et al.
patent: 3590192 (1971-06-01), Bould et al.

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