发明名称 |
WARNING LIGHT SYSTEM FOR USE WITH A SMOKE DETECTOR |
摘要 |
A flashing alarm device responsive to audible signals produced by a smoke detector when the smoke detector senses a smoke condition, the alarm device including a circuit with a microphone portion for responding to audible signals produced by the smoke detector and an amplifier circuit portion for amplifying signals produced by the microphone, a switch circuit portion having a control input connected to the output of the amplifier circuit portion, and another circuit portion including a battery, a timer circuit, and a light bulb, the battery having a connection to the amplifier circuit and to the timer circuit, the timer circuit and the light bulb being connected in series with the switch circuit portion for energizing and de-engergizing the light bulb whenever the switch circuit portion is in its conducting condition. The device may also include a housing for the components and the device may optionally be constructed to operate on transmitted and received radio frequency signals.
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申请公布号 |
CA2002651(C) |
申请公布日期 |
1995.05.02 |
申请号 |
CA19892002651 |
申请日期 |
1989.11.09 |
申请人 |
UNIVERSAL ELECTRONICS INC. |
发明人 |
JOHNSON, WILLIAM A.;HOWE, DAVID J.;BUDZYNA, W. JAMES |
分类号 |
G08B5/38;G08B17/00;(IPC1-7):G08B17/10 |
主分类号 |
G08B5/38 |
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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