发明名称 |
Voltage indicating test point cap |
摘要 |
A test point cap provides a visual indication of the voltage level of an alternating current in the conductor of a connector on which the cap is installed. The test point cap includes a bridge-type rectifier circuit which is capacitively coupled to the conductor through a test point terminal on the connector. The rectifier circuit charges a capacitor across which a neon lamp visible through a window in the end of the cap is connected, the rate at which the neon lamp flashes providing an indication of the voltage level on the conductor.
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申请公布号 |
US4152643(A) |
申请公布日期 |
1979.05.01 |
申请号 |
US19780895151 |
申请日期 |
1978.04.10 |
申请人 |
E O SCHWEITZER MFG CO INC |
发明人 |
SCHWEITZER, EDMUND O JR |
分类号 |
G01R19/155;(IPC1-7):G01R19/26;G01R31/02 |
主分类号 |
G01R19/155 |
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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