Electrical switch

Details Electrical switch Electrical switch

2006-09-28

2009-02-24

Enad, Elvin G (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Arc chute assembly

C218S015000, C218S034000

Reexamination Certificate

active

07495190

ABSTRACT:
An electrical switch is disclosed. The switch includes at least one switching contact which is held against the prestressing force of a contact force spring on a moving contact mount, and an arc quenching device, in which at least one section of the at least one contact force spring extends between side pieces of the contact mount. A device for limiting the spreading of combustion products is provided, which has an angle bracket inclined with respect to the opening direction of the moving contact mount. When the contact mount is in the open position, the bracket overhangs the at least one section of the at least one contact force spring. In order to protect the contact force springs, in particular at the end of the opening process, even better against contamination by spreading combustion products, the inclined angle bracket is seated in a prestressed manner on the side pieces.

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patent: 6417474 (2002-07-01), Rakus et al.
patent: 2006/0044097 (2006-03-01), Dahl et al.
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patent: 10 2004 002 932 (2005-08-01), None
patent: 0 225 207 (1991-05-01), None

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