发明名称 |
Smoke alarm activated light |
摘要 |
A portable light for emergency illumination which is activated in response to the sound emitted by a smoke alarm device, which light has an efficient and reliable battery conserving circuit. The present light includes a switch interconnecting a battery and a light bulb for selectively activating the light bulb and a circuit interconnecting a microphone and the switch for selectively activating the switch in response to a smoke alarm signal. A strobe circuit interconnects the source of power and the circuit for periodically activating the circuit which, therefore, draws power for only a small fraction of the time.
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申请公布号 |
US4570155(A) |
申请公布日期 |
1986.02.11 |
申请号 |
US19820424584 |
申请日期 |
1982.09.27 |
申请人 |
GATEWAY SCIENTIFIC, INC. |
发明人 |
SKARMAN, JOHN S.;TENHULZEN, NEAL L. |
分类号 |
G08B1/08;G08B5/38;(IPC1-7):G08B1/00;G08B5/00 |
主分类号 |
G08B1/08 |
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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