Telephone surge protector
US5191605A · kind A · utility
9Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1991 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2037/768
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A telephone protector comprises an encapsulated bidirectional voltage sensitive switch having three terminals protruding therefrom, one of the terminals being a grounding terminal. There is an elongated shorting bar substantially orthogonal to the three terminals and a metal fusible pellet in direct physical contact with both the grounding terminal and the shorting bar. There is a spring which impels the shorting bar into contact with the other two terminals when the fusible pellet melts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.