Electrical devices control system

Details Electrical devices control system Electrical devices control system

1974-08-30

1976-06-22

Schaefer, Robert K.

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

307 10R, 340147C, H02J 400

Patent

active

039653668

ABSTRACT:
An electrical device control system comprising: a plurality of signal sources; a plurality of electrical loads; a central operation apparatus; a plurality of terminal operation apparatus connected to the plurality of electrical loads and having means to detect the operation and a fault of the signal source and a fault of the electrical load and to generate a time division signal thereof; a multiple signal transmission line connecting the plurality of terminal operation apparatus to the central operation apparatus to transmit the time division signal to the central operation apparatus; the central operating apparatus having means to generate an activating signal for transmission over the multiple signal transmission line to the terminal station apparatus to operate an electrical load in response to the detection of the time division signal.

REFERENCES:
patent: 3333245 (1967-07-01), Schildgen et al.
patent: 3618082 (1971-11-01), Feulner
patent: 3821559 (1974-06-01), Ueda et al.

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