Circuit breaker with arc gas propelled movable contact and...

Details Circuit breaker with arc gas propelled movable contact and... Circuit breaker with arc gas propelled movable contact and...

2006-11-21

2006-11-21

Enad, Elvin (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Multiple break

C218S014000, C218S117000

Reexamination Certificate

active

07138597

ABSTRACT:
The support for the moving contact of a circuit breaker has a piston that is driven by arc gases generated by initial separation of the contacts through magnetic repulsion to rapidly open the contacts. A pair of telescoping shield sleeves that have aligned openings through which the moving contact is extended to close with the fixed contact are oppositely driven transversely to piston movement by the arc gases to cut off the arc.

REFERENCES:
patent: 4677266 (1987-06-01), Belbel et al.
patent: 4700030 (1987-10-01), Belbel et al.
patent: 4801772 (1989-01-01), Bratkowski et al.
patent: 4883931 (1989-11-01), Batteux et al.
patent: 4943691 (1990-07-01), Mertz et al.
patent: 6373014 (2002-04-01), Mitsuhashi et al.

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