Personnel security system

Details Personnel security system Personnel security system

1986-01-13

1987-07-21

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340522, 340545, 340572, G08B 1308, G08B 1318

Patent

active

046821554

ABSTRACT:
A security sensing system monitors the passage of persons through a door or like opening. A transmitter module having means for transmitting an omnidirectional signal is installed on persons to be monitored and a sensing module for installing adjacent to a door opening to be monitored. The sensing module operates an alarm, but only when the door is opened by a person equipped with a trigger module on his person.

REFERENCES:
patent: 3163856 (1964-12-01), Kirby
patent: 3665448 (1972-05-01), McGlinchey et al.
patent: 3972320 (1976-08-01), Kalman
patent: 4063410 (1977-12-01), Welling
patent: 4095214 (1978-06-01), Minasy
patent: 4314240 (1982-02-01), Schnug
patent: 4476461 (1984-10-01), Carubia
patent: 4555696 (1985-11-01), Brown
patent: 4598275 (1986-07-01), Ross et al.

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