Intruder detection security system

Details Intruder detection security system Intruder detection security system

1981-10-07

1983-08-16

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

250227, 340555, 350 9623, G08B 1312

Patent

active

043994300

ABSTRACT:
A security system having a mesh-like intruder detection structure for use as or with a security fence 2 or for detecting intruders jumping down from a fence or wall. The structure is made up from a number of elongated members (4, 6, 8, 10, 12, 14) each in the form of or including a fibre-optic waveguide, the elongated members being secured together at a number of spaced jointing points (20) spaced 20 cms or less apart. Portions of the elongated members at the jointing points are held in a position fixed relative to one another by encapsulating the jointing points in a plastics material (40), welding the portions together and/or surrounding them with a metal ferrule (38).

REFERENCES:
patent: 3725891 (1973-04-01), Miller
patent: 4234875 (1980-11-01), Williams
patent: 4275294 (1981-06-01), Davidson
patent: 4330173 (1982-05-01), Oestreich

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