Safety interlock for circuit breaker housing assembly and...

Details Safety interlock for circuit breaker housing assembly and... Safety interlock for circuit breaker housing assembly and...

2006-06-06

2006-06-06

Fishman, Marina (Department: 2832)

Electricity: circuit makers and breakers

Interlocking

Drawout-type switchgear

C361S606000, C361S609000

Reexamination Certificate

active

07057123

ABSTRACT:
An interlock assembly for a circuit breaker housing assembly and a circuit breaker extraction device wherein the interlock assembly has a first and second component. The first component is coupled to a circuit breaker housing assembly and the second component is coupled to a circuit breaker extraction device. The first component includes a rail obstruction assembly that is structured to move between a first position, wherein the movable rail obstruction element blocks a circuit breaker wheel from traveling over a circuit breaker housing assembly rail, and a second position, wherein the movable rail obstruction element is spaced from the circuit breaker housing assembly rail so that a wheel may travel over the circuit breaker housing assembly rail. The second component is structured to engage the first component when the circuit breaker extraction device is brought adjacent to the circuit breaker housing assembly and to move the movable rail obstruction element from the first position to the second position.

REFERENCES:
patent: 4002864 (1977-01-01), Kuhn et al.
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patent: 4486814 (1984-12-01), Ishikawa et al.
patent: 5486978 (1996-01-01), Fishovitz
patent: 6066814 (2000-05-01), Smith et al.
patent: 6400245 (2002-06-01), Castonguay et al.
patent: 6445570 (2002-09-01), Leccia
patent: 6590170 (2003-07-01), Jenkins
patent: 6884949 (2005-04-01), Yoon

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