Electric lamp and discharge devices: systems – Plural diverse-type load devices
Patent
1978-08-30
1979-09-11
Smith, Alfred E.
Electric lamp and discharge devices: systems
Plural diverse-type load devices
315201, 315205, 315314, 315320, 361191, 219361, 219364, 219501, 219508, 340628, 307 38, 307 41, 307146, H05B 3702, F24H 302, G08B 1710
Patent
active
041676882
ABSTRACT:
A control circuit including at least one switch and a plurality of rectifiers for selectively applying a-c utility power to either or both of two remote electrically-powered apparatus at respective first and second states of rectification by means of a conventional two-wire interconnection cable. Where one of the apparatus is of a type, such as a motor, adapted to be powered by a full-wave a-c, the control circuit includes a relay and relay switch responsive to switch-selectable half-wave a-c for connecting the motor to receive full-wave power. In one disclosed embodiment, the two apparatus comprise a composite smoke detector and lamp fixture, and the control circuit provides continuous power at a first state of rectification to the smoke detector portion of the fixture and switch-selectable power at a second state of rectification to the fixture lamp.
REFERENCES:
patent: 2997607 (1961-08-01), Hill
patent: 3180999 (1965-04-01), Kuykendall
patent: 3201754 (1965-08-01), Reiner et al.
Burek Michael J.
White Robert S.
Roberts Charles F.
Smith Alfred E.
Stirling-White Company, Inc.
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