Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1992-10-23
1993-11-23
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340531, 340525, G08B 108
Patent
active
052648281
ABSTRACT:
A personal security alarm system which activates audible and visible alarms instantly at the location of an emergency, and simultaneously notifies security personnel of the existence and location of the emergency so that response to the call for help can be immediate. When a person is threatened, the person actuates a hand-held alarm actuator-transmitter by pressing a pushbutton. The signal is received by an area relay receiver which triggers an alarm at the location where the incident is occurring. At the same time the area relay receiver relays the state of emergency to a master computer which identifies the area relay receiver activated by the hand-held alarm actuator-transmitter. The master computer activates an annunciator and displays on a color video screen graphically and in print the floor plan or the site layout where the incident is occurring. A portable device is provided for resetting the portable alarm activator. This resetting device determines whether the portable alarm activator has been activated when the latter is inserted in the former in a predetermined direction, and deactivates the activated portable alarm activator when the latter in inserted in the former in a direction opposite to the predetermined direction.
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Hasler Review vol. 14, No. 4, "Hasler Personnel Protection Systems", R. Petersen Dec. 1981, pp. 122-127.
Bertone Gregory
Fischman Melvin K.
Meiksin Zvi H.
Crosland Donnie L.
Flaherty Dennis M.
Parksafe, Inc.
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