Circuit breaker closing and opening interlock assembly

Electricity: circuit makers and breakers – Contact moved by sudden release of stored energy

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H01H 500

Patent

active

054789796

ABSTRACT:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The closing springs controlling the CLOSED state and the opening springs controlling the OPENED state of the circuit breaker contacts are interlocked to prevent operation of both springs at the same time. The closing lever and the opening lever interact in such a manner that only one of the levers can release the associated closing or opening springs.

REFERENCES:
patent: 2581181 (1952-01-01), Favre
patent: 3652815 (1972-03-01), Davies
patent: 4001742 (1977-01-01), Jencks et al.
patent: 4800242 (1989-01-01), Yin
patent: 4801907 (1989-01-01), Kelaita, Jr. et al.
Castonguay et al; USSN: 203,062 for "Rating Module Unit for High Ampere-Rated Circuit Breaker" filed Feb. 28, 1994.
Castonguay et al, USSN: 218,287 for "A Latching Arrangement for High Ampere-Rated Circuit Breaker Operating Springs" filed Mar. 28, 1994.
U.S. Ser. No. 202,140 filed Feb. 25, 1994, Castonguay et al.
U.S. Ser. No. 205,240 filed Mar. 3, 1994, Castonguay et al.
U.S. Ser. No. 214,522 filed Mar. 18, 1994, Castonguay et al.

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