发明名称 |
Solid state telephone protector module |
摘要 |
An individual subscriber circuit protector module employing solid state circuitry for protection against momentary voltage surges, and having firmly sensitive heat coil assemblies for protecting against continuous excess current surges. Fail-safe protection is also provided which becomes operative in the event of failure of the heat coil protection.
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申请公布号 |
US4944003(A) |
申请公布日期 |
1990.07.24 |
申请号 |
US19890413689 |
申请日期 |
1989.09.28 |
申请人 |
PORTA SYSTEMS CORP. |
发明人 |
MEYERHOEFER, CARL;NEUWIRTH, HELMUTH;VISCONTI, PETER |
分类号 |
H01T1/14;H01T4/06 |
主分类号 |
H01T1/14 |
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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