Readiness for closing indicator for circuit breakers

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

Reexamination Certificate

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Details

C200S401000

Reexamination Certificate

active

07906740

ABSTRACT:
Disclosed is a visual and electrical indication on the status of “Readiness to close” (RTC) for circuit breakers. Exemplary embodiments include a circuit breaker apparatus, including a lay shaft coupled to circuit breaker contacts, a lay shaft cam profile coupled to the lay shaft, a trip free plate coupled to the lay shaft cam profile, a trip paddle coupled to the trip free plate, wherein the trip paddle is coupled to a trip shaft and a ready to close indicator coupled to the trip free plate and charging cam assembly.

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patent: 6080947 (2000-06-01), Ulerich
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patent: 6788172 (2004-09-01), Godesa et al.
patent: 6803535 (2004-10-01), Whipple et al.
patent: 2015337 (2009-01-01), None
EP Search Report issued in connection with corresponding EP Patent Application No. 09157296 filed on Apr. 3, 2009.

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