Intrusion detection device

Details Intrusion detection device Intrusion detection device

1994-04-26

1995-10-24

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

256 11, 256 12, 340666, G08B 1302

Patent

active

054613647

ABSTRACT:
An intrusion detection device that can be used singly or in multiplicity to immediately and silently alert the user of attempts to climb over a security fencing system. The invention consists of a base element which attaches to the security fencing, and an alarming arm. The alarming arm is equipped with barrier material, such as concertina wire or barbed wire. The alarming arm is connected to the base element both at a pivot point and through a tensioning means. Attempts to climb over the barrier material result in additional loading of the alarming arm which rotates transversely about the pivot point, and against the force of the tensioning means. This rotational displacement of the alarming arm enables an electrical sensing device which then signals that an intrusion is in progress.

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Vtw-300 Electronic Taut Wire Fence:Installatiopn and Maintenance Manual; Vindicator; Aug. 9, 1989.

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