Surge suppressing device
US5781394A · kind A · utility
51Cited by
23References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surge suppressing device includes a voltage-dependent resistor having an opening formed therethrough. A pair of preformed pads formed of an electrically conductive material is located adjacent a first and second side respectively of the voltage-dependent resistor proximate the opening. The electrically conductive material flows through the opening creating an electrical short between the first and second sides when the voltage-dependent resistor is heated in response to excessive leakage current flowing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.