Electricity: electrical systems and devices – Safety and protection of systems and devices
Patent
1982-08-27
1984-07-24
Miller, Jr., George H.
Electricity: electrical systems and devices
Safety and protection of systems and devices
361 3, 361 7, H02H 300, H02H 700
Patent
active
044620578
ABSTRACT:
A.C. switching circuit capable of opening and closing contacts without generating any arc. When D.C. source restores from its interruption, the contacts are maintained in or shifted to a predetermined state. A change-over switch is provided for selecting as required whether the contacts are to be forcibly opened or closed after the D.C. source interruption, or whether the previous state of the contacts is to be maintained.
REFERENCES:
patent: 3283179 (1966-11-01), Carlisle et al.
Fukuzono Hideki
Kobayashi Masato
Nishimura Hiromi
Foster Patrick W.
Matsushita Electric & Works Ltd.
Miller Jr. George H.
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