Bellows and vacuum switch using the bellows

Details Bellows and vacuum switch using the bellows Bellows and vacuum switch using the bellows

1998-09-29

2000-09-05

Donovan, Lincoln

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

218118, H01H 3366

Patent

active

061146471

ABSTRACT:
A bellows, of which one end portion is fixed to a movable lever passing through a vessel wall and the other end portion of which is fixed to the vessel wall, has a spring constant at a central portion in an expansion direction which is smaller than that at the end portions in the expansion direction. The bellows damps stress concentration at the end portions and improves the life thereof, without enlarging the size of the bellows. The bellows may be used in a vacuum switch.

REFERENCES:
patent: 2677393 (1954-03-01), Cornelius
patent: 4585913 (1986-04-01), Yorita

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