发明名称 |
Composite illumination fixture and control circuit therefor |
摘要 |
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.
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申请公布号 |
US4167688(A) |
申请公布日期 |
1979.09.11 |
申请号 |
US19780938082 |
申请日期 |
1978.08.30 |
申请人 |
STIRLING-WHITE COMPANY, INC. |
发明人 |
BUREK, MICHAEL J.;WHITE, ROBERT S. |
分类号 |
G08C19/30;(IPC1-7):H05B37/02;F24H3/02;G08B17/10 |
主分类号 |
G08C19/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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