Lightning arrester
US4037139A · kind A · utility
1Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Mar 17, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A step-up transformer is connected to a reference potential level and is coupled to a multiple-electrode gas-filled discharge tube to provide a pulse of sufficient magnitude to fire the tube and thereby protect a signal line and the equipment to which it is connected against voltage surges which may be harmful but which are otherwise too low to ignite the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.