Electricity: circuit makers and breakers – Toggle mechanisms
Reexamination Certificate
2011-03-22
2011-03-22
Luebke, Renee (Department: 2833)
Electricity: circuit makers and breakers
Toggle mechanisms
C335S035000, C335S173000
Reexamination Certificate
active
07910850
ABSTRACT:
A push-to-trip assembly is provided for an electrical switching apparatus, such as a circuit breaker. The push-to-trip assembly includes a push-to-trip actuator having first and second ends and being movable among a first position corresponding to the circuit breaker separable contacts being closeable, and a second position corresponding to the second end cooperating with a trip bar to cause the circuit breaker operating mechanism to trip open the separable contacts. The first end is accessible from the exterior of the housing to actuate the push-to-trip actuator from the first position to the second position. A biasing element biases the push-to-trip actuator away from the base toward the first position. At least one cover stop of the push-to-trip actuator engages a corresponding portion of the housing cover to stop movement of the push-to-trip actuator. An overtravel restraint proximate the second end of the push-to-trip actuator restrains movement of the trip bar.
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patent: 4000478 (1976-12-01), Jencks et al.
patent: 6111486 (2000-08-01), Fischer et al.
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patent: 6700082 (2004-03-01), Gibson et al.
Brand Ronald W.
Janusek Mark A.
McCarthy Kelly J.
Puhalla Craig J.
Caroc Lheiren Mae A
Eaton Corporation
Luebke Renee
Moran Martin J.
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