Handle interlock arrangement for high ampere-rated circuit break

Details Handle interlock arrangement for high ampere-rated circuit break Handle interlock arrangement for high ampere-rated circuit break

1994-06-27

1996-02-27

Recla, Henry J.

Electricity: circuit makers and breakers

Contact moved by sudden release of stored energy,

200318, H01H 500

Patent

active

054950821

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 means of an operating handle and a ratchet and pawl assembly. A two-stage latching arrangement controls the retention and release of the pawl to retain and discharge the operating springs. The operating springs cannot become discharged until and unless the operating handle is in a fully retracted position.

REFERENCES:
patent: 3689721 (1972-09-01), Patel
patent: 3689731 (1972-09-01), McGuffie
patent: 4001742 (1977-01-01), Castonguay et al.
patent: 4658323 (1987-04-01), Dougherty
patent: 4801907 (1989-01-01), Kelaita, Jr. et al.
Castonguay et al, "Operating Mechanism for High Ampere-rated Circuit"; U.S. Ser. No.: 08/202,140 (Docket: 41PR-7116) Feb. 25, 1994.
Castonguay et al, "Handle Operator Assembly for High Ampere-rated Circuit Breaker" U.S. Ser. No.: 08/214,522 (Docket: 41PR-7130) Mar. 18, l994.
Castonguay et al, "A Latching Arrangement for High-rated Circuit Breaker Operating Springs"; U.S. Ser. No.: 08/218,287(Docket:41PR-7131) Mar, 28, 1994.
Castonguay et al, "Rating Module Unit for High Ampere-rated Circuit Breaker" U.S. Ser. No.: 08/203,062 (Docket:41PR-7124) Feb. 28, 1994.
Castonguay et al, "An Interlock Arrangement for High Ampere-rated Circuit Breaker Operating Handles" U.S. Ser. No.: 08/266,409 (Docket:41PR-7138X) Jun. 27, 1994.

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