Fire detection system

Details Fire detection system Fire detection system

1980-06-11

1982-02-16

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340589, 340596, 340310A, G08B 108, H04Q 130, G08B 1706

Patent

active

043161790

ABSTRACT:
A system for detecting fires in a barn or similar structure includes rate of rise heat detectors and temperature sensing cable. Upon detection of a predetermined rate of rise or a predetermined temperature the control circuitry of the system produces an output signal that activates an audible alarm mounted outside the barn. The control circuitry also produces an FM signal that travels through the power lines servicing the farm. The FM signal activates an audible alarm plugged into an electrical outlet in the home.

REFERENCES:
patent: 2832915 (1958-04-01), McCoy
patent: 3255441 (1966-06-01), Goodwin et al.
patent: 3701985 (1972-10-01), Davies
patent: 4058678 (1977-11-01), Dunn et al.

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