Non-electric perimeter fence
US6199831A · kind A · utility
Inventors
Key dates
| Filing date | Jun 30, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Jun 30, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H17/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A non-electric perimeter fence to prevent animals from entering a restricted area comprises a vertical barrier member extending to a predetermined height above ground level and an angled barrier member extending upwardly and outwardly from the vertical member relative to the restricted area. The vertical member may comprise a conventional chain link fence and the angled member is preferably made of a sheet material. The surface of the angled member which is presented to an animal attempting to climb over the fence is preferably smooth and free of protrusions which could assist the animal in climbing the fence. Preferably, the height of the angled member is sufficient to prevent an animal such as an adult raccoon from reaching over its upper edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.