Contactor for vacuum type circuit interrupter

Details Contactor for vacuum type circuit interrupter Contactor for vacuum type circuit interrupter

1981-12-30

1984-01-03

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Contact

200266, H01H 104

Patent

active

044244290

ABSTRACT:
A contactor for a vacuum type circuit interrupter having a pair of detachable electrodes in a vacuum chamber comprises an electrode obtained by melting or sintering a composition of an electric conductive metal of copper or silver as a main component and at least one metal oxide having a melting point lower than that of said conductive metal of bismuth oxide, thallium oxide, indium oxide, antimony oxide or tellurium oxide as an additive, in vacuum or a reduced atmosphere or a nonoxidative atmosphere.

REFERENCES:
patent: Re30052 (1979-07-01), Davies et al.
patent: 2200855 (1940-05-01), Ruben
patent: 2247754 (1941-07-01), Hensel et al.
patent: 2975256 (1961-03-01), Lee et al.
patent: 3683138 (1972-08-01), Nabae et al.
patent: 4011052 (1977-03-01), Davies
patent: 4131458 (1978-12-01), Satoh et al.
patent: 4204863 (1980-05-01), Schreiner

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