Electricity: circuit makers and breakers – Contact moved by sudden release of stored energy
Reexamination Certificate
2000-12-06
2002-08-27
Luebke, Renee (Department: 2833)
Electricity: circuit makers and breakers
Contact moved by sudden release of stored energy,
C200S332000
Reexamination Certificate
active
06441329
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of the Application Number 0003486 filed Mar. 17, 2000 in France, which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
This invention relates to circuit breakers and, more particularly to a circuit breaker drive for use with circuit breakers.
It is known in the art to provide circuit breakers for electrical systems. The circuit breaker is operative to disengage the electrical system under certain operating conditions. It is advantageous to provide a mechanism whereby the electrical system is reengaged remotely and with a minimum response time. The circuit breaker drive allows the circuit breaker to be operated remotely. A drive for molded case circuit breakers is described in French Patent No. 2,701,596. With the drive, the circuit breaker can be opened, closed or reset after trip. It is the fore necessary to develop a faster operating mechanism capable of reengaging the electrical system in a minimum amount of time.
BRIEF SUMMARY OF THE INVENTION
A circuit breaker drive is disclosed. The circuit breaker drive includes an actuator for assuming a plurality of positions and a lever coupled to the actuator and responsive to the action of the actuator. The circuit breaker drive also includes a cam rotatable about an axis, the cam is juxtaposed proximate the lever, and the lever is operative to rotate the cam about the axis. The circuit breaker drive further includes a rack coupled to the cam and to an operating handle of the mol circuit breaker. Rotation of the cam about the axis drives the rack to move the operating handle.
REFERENCES:
patent: 2264990 (1941-12-01), Lindstrom et al.
patent: 3752947 (1973-08-01), Strobel
patent: 4901046 (1990-02-01), Alsch
patent: 5504290 (1996-04-01), Baginski et al.
patent: 5808532 (1998-09-01), DiVincenzo et al.
patent: 0 427 641 (1990-10-01), None
patent: 2 701 596 (1993-02-01), None
Burlet Marc
Guille Serge
Cantor & Colburn LLP
General Electric Company
Luebke Renee
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