Intrusion detection system

Details Intrusion detection system Intrusion detection system

1982-09-30

1985-07-02

Myracle, Jerry W.

Communications: electrical

Condition responsive indicating system

Specific condition

340666, 340668, G08B 1312

Patent

active

045271500

ABSTRACT:
An underground taut wire intrusion detection system includes a sensor wire enclosed within a conduit adapted to be buried in the ground, the conduit being sufficiently rigid so as to be collapse-resistant when buried in the ground, but being sufficiently flexible in its length such that when disturbed by an attempted intruder the disturbance is transferred to the sensor wire to cause it to actuate a detector.

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patent: 2787784 (1957-04-01), Meryman et al.
patent: 3846780 (1974-11-01), Gilcher
patent: 3867564 (1975-02-01), Karadishian
patent: 4075616 (1978-02-01), Rait
patent: 4194194 (1980-03-01), Redfern
patent: 4209776 (1980-06-01), Frederick
patent: 4245219 (1981-01-01), Dempsey et al.
patent: 4311889 (1982-01-01), Blanchard et al.
patent: 4318088 (1982-03-01), Hunter
patent: 4356423 (1982-10-01), Gudzin
patent: 4367459 (1983-01-01), Amir et al.

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