Overvoltage protection devices including wafer of varistor material
US8743525B2 · kind B2 · utility
25Cited by
42References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2012 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Oct 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overvoltage protection device includes first and second electrically conductive electrode members and a varistor member formed of a varistor material and electrically connected with each of the first and second electrode members. The overvoltage protection device has an integral fail-safe mechanism operative to electrically short circuit the first and second electrode members about the varistor member by fusing first and second metal surfaces in the overvoltage protection device to one another using an electric arc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.