发明名称 |
Bulb outage warning system |
摘要 |
A warning system for detecting a burned out or defective bulb for a motor vehicle is disclosed. A transmitting circuit is connected to detect current flow through the bulb to be monitored. Failure of the bulb to draw current causes the transmitting circuit to produce a series of small voltage pulses on the battery line. These pulses are detected by a receiving circuit which causes an outage indicator light to be illuminated.
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申请公布号 |
US4068216(A) |
申请公布日期 |
1978.01.10 |
申请号 |
US19760707386 |
申请日期 |
1976.07.21 |
申请人 |
STEWART-WARNER CORPORATION |
发明人 |
BROUWER, FRANS;FERRARI, FRANCIS E. |
分类号 |
B60Q11/00;(IPC1-7):H04Q1/20;H03K21/36 |
主分类号 |
B60Q11/00 |
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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