Fence particularly useful for detecting intrusion attempts
US4533906A · kind A · utility
16Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1982 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Sep 15, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/122
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A wire fence includes a plurality of wires tensioned at their opposite ends by ground-anchoring means each comprising a pair of vertical posts anchorable in the ground in spaced parallel relationship, and a diagonal post secured between the lower end of one vertical post and the upper end of the other, so that the diagonal post extends at an incline between the two vertical posts. The fence includes trip-wires secured to the diagonal post and freely movable in the longitudinal direction with respect to the vertical posts. The trip wires are connected to a detector which is actuated upon the disturbance of a trip wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.