Multi-input electrical monitor

Details Multi-input electrical monitor Multi-input electrical monitor

1990-05-21

1991-08-27

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340506, 340513, 340521, G08B 2300

Patent

active

050437011

ABSTRACT:
A multi-input electrical monitor has a plurality of input terminals for connection to a plurality of condition responsive transducers whereby some of the input terminals receive electrically high signals while other of the input terminals receive electrically low signals when the transducers respond to abnormal conditons; a signal generator responds to the existance of such abnormal conditions even though the input signals indicative thereof can be either electrically high or low.

REFERENCES:
patent: 3289193 (1966-11-01), Worthington et al.
patent: 3950745 (1976-04-01), Miller
patent: 3978478 (1976-08-01), Schmitz
patent: 4204201 (1980-05-01), Williams et al.
patent: 4536747 (1985-08-01), Jensen

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