Detecting and alarming system for detecting shortcircuited or br

Details Detecting and alarming system for detecting shortcircuited or br Detecting and alarming system for detecting shortcircuited or br

1992-01-06

1993-04-06

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340509, G08B 2900

Patent

active

052007340

ABSTRACT:
A detecting and alarming system includes a main alarm circuit provided in a headquarter control center, at least a terminal alarm circuit provided at a local station, and at least a connecting loop conecting the main alarm circuit and each terminal alarm circuit, whereby upon a cutting or a shortcircuiting of the connecting loop between the headquarter control center and the local station, an alarm will be actuated for warning the breaking or shortcircuiting situation.

REFERENCES:
patent: 3474299 (1969-10-01), Caputo
patent: 3653041 (1972-03-01), McGrath et al.
patent: 3678509 (1972-07-01), Carlo et al.
patent: 4435700 (1984-03-01), Alley

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