Movably disposed circuit breaker having a blow-out attenuator

Details Movably disposed circuit breaker having a blow-out attenuator Movably disposed circuit breaker having a blow-out attenuator

1999-03-16

2000-08-08

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With arc-suppression or extinguishing means

335132, 218156, H01H 902

Patent

active

061007781

ABSTRACT:
A movably disposed circuit breaker has a blow-out attenuator for cooling and deionizing switching gases escaping from an arc quenching chamber. The blow-out attenuator is composed of two telescopically interlocking sub-members. The one sub-member is fixedly arranged, while the other sub-member rests with a sealing surface on a mouth surface of the arc quenching chamber. Due to the two-part design of the blow-out attenuator, the switching-gas pressure improves the sealing action between the arc quenching chambers and the blow-out attenuator.

REFERENCES:
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patent: 4356360 (1982-10-01), Volz
patent: 4876424 (1989-10-01), Leone et al.
patent: 4894497 (1990-01-01), Lycan
patent: 5304761 (1994-04-01), Rosen et al.
patent: 5710402 (1998-01-01), Karnbach et al.
patent: 5753878 (1998-05-01), Doughty et al.
patent: 5811748 (1998-09-01), Manthe et al.
patent: 5811749 (1998-09-01), Bausch et al.

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