Vacuum switch

Details Vacuum switch Vacuum switch

1977-12-30

1981-02-03

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

042490502

ABSTRACT:
A vacuum switch having a vacuum vessel and a pair of separable contacts disposed in the vessel comprises a pair of opposing shields surrounding the contacts respectively in the vacuum vessel, and the shields have reentrant portions in which the contacts are positioned respectively at opened state and the distance between the opposing faces of the shields is shorter than the distance between the contacts at the opened state.

REFERENCES:
patent: 809262 (1906-01-01), Hood
patent: 2027835 (1936-01-01), Rankin et al.
patent: 2383973 (1945-09-01), Jones, Jr.
patent: 2491338 (1949-12-01), Smith, Jr.
patent: 3261954 (1966-07-01), Yonkers
patent: 3399286 (1968-08-01), Kerr, Jr.
patent: 3597558 (1971-08-01), Gotsch et al.
patent: 3903386 (1975-09-01), Yanagisawa

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