Circuit breaker indicating flag interlock arrangement operating

Details Circuit breaker indicating flag interlock arrangement operating Circuit breaker indicating flag interlock arrangement operating

1994-09-12

1996-04-02

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200308, H01H 916, H01H 920

Patent

active

055042856

ABSTRACT:
This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating springs controlling the circuit breaker contacts is made manually by a ratchet and pawl assembly. A logic plate interacts with the operating springs charging gear and a logic lever interacts with the ratchet and pawl assembly to prevent the charge indicating flag from signaling until the operating springs have become fully charged.

REFERENCES:
patent: 2777024 (1957-01-01), West
patent: 3227831 (1966-01-01), Jacks et al.
patent: 4001742 (1977-01-01), Jencks et al.
patent: 4002865 (1977-01-01), Kuhn et al.
patent: 4011424 (1977-03-01), Ericson et al.
patent: 4017698 (1977-04-01), Kuhn et al.
patent: 4301342 (1981-11-01), Castonguay et al.
patent: 4658323 (1987-04-01), Dougherty et al.
patent: 4801907 (1989-01-01), Kelaita et al.

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