Lightning protected electric fence controller system and method
US4939618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1989 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Sep 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05C3/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric fence controller (20) interconnected to electric fence terminals (136, 138) by a three terminal spark gap arrangement (140) one terminal (142) being interconnected to the fence hot terminal (136), a second terminal (144) being interconnected to the fence ground terminal (138) and a third terminal (146) being interconnected to utility ground (48). High voltage surges on the electric fence will thus be diverted either to the local fence ground terminal (138) or to the utility ground (48) whichever ground has the least resistance to ground thereby assuring an effective ground so as to prevent damage due to lightning strikes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.