ARC baffle, and ARC chute assembly and electrical switching...

Details ARC baffle, and ARC chute assembly and electrical switching... ARC baffle, and ARC chute assembly and electrical switching...

2006-09-20

2009-02-10

Enad, Elvin G (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Arc chute assembly

C218S034000, C218S157000, C335S201000

Reexamination Certificate

active

07488915

ABSTRACT:
An arc baffle for an arc chute assembly of a circuit breaker includes a first baffle member disposed at or about the second end of the arc chute assembly and including a plurality of first venting holes, a second baffle member including a plurality of second venting holes and being coupled to and disposed opposite from the first baffle member, and a filter assembly disposed at or about the second baffle member and including a number of filter elements. The first and second venting holes of the first and second baffle members are offset to induce turbulent flow of ionized gases being discharged from the arc chute assembly. The filter elements of the filter assembly filter the turbulent flow. An arc chute assembly and an electrical switching apparatus are also disclosed.

REFERENCES:
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patent: 3997746 (1976-12-01), Harper et al.
patent: 4019005 (1977-04-01), Michetti
patent: 5861596 (1999-01-01), Grass et al.
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patent: 6248971 (2001-06-01), Morel et al.
patent: 7034242 (2006-04-01), Shea et al.
patent: 2002/0139741 (2002-10-01), Kopf
patent: 2003/0048586 (2003-03-01), Faber et al.
patent: 44 10 108 (1994-03-01), None
patent: 101 49 019 (2001-09-01), None
Written Opinion issued in International Application No. PCT/IB2007/002715.

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