Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1991-12-03
1993-08-10
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340531, 340532, 340534, G08B 108
Patent
active
052353206
ABSTRACT:
An alarm system for generating an alarm from a remote location and which utilizes electronically generated codes to access selected functional portions of the alarm system circuitry and which further utilizes a locking transmitter which must be reset after a single use thereof before the transmitter may be re-used, the transmitter resetting being achieved by means accessible only to authorized personnel. A method for providing personnel security utilizing a defined area grid to identify a location which may be entered into a portable transmitter. When a person determines a need for assistance, the location code is transmitted by radio signal to receivers placed at corresponding grid locations, which receivers send an alarm signal to summon help and simultaneously activate security lighting or audible annunciators.
REFERENCES:
patent: 2101209 (1937-12-01), Bacon
patent: 2206556 (1940-07-01), Agnew
patent: 2213100 (1940-08-01), Cianchi
patent: 2663864 (1953-12-01), Cundiff
patent: 2942249 (1960-06-01), Paull
patent: 3833895 (1974-09-01), Fecteau
patent: 3864674 (1975-02-01), Worsham et al.
patent: 3891986 (1975-06-01), Lipe et al.
patent: 3914692 (1975-11-01), Seaborn, Jr.
patent: 4241332 (1980-12-01), Farque
patent: 4523184 (1985-06-01), Abel
patent: 4535333 (1985-08-01), Twardowski
patent: 4567472 (1986-01-01), Shirai et al.
patent: 4581606 (1986-04-01), Mallory
patent: 4746919 (1988-05-01), Reitmeier
patent: 4764757 (1988-08-01), DeMarco et al.
patent: 4772876 (1988-09-01), Lard
patent: 4855713 (1989-08-01), Brunius
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