Failsafe logic function apparatus

Details Failsafe logic function apparatus Failsafe logic function apparatus

1977-08-10

1979-12-18

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307218, 250552, H03K 342

Patent

active

041796292

ABSTRACT:
An improved failsafe logic function apparatus is disclosed which includes an input signal section and an output signal section, with a middle gating network section isolated from each of the input signal section and the output signal section. An external control signal determines the logic function operation of the apparatus.

REFERENCES:
patent: 3413480 (1968-11-01), Biard et al.
patent: 3486029 (1969-12-01), Barrett et al.
patent: 3826930 (1974-07-01), Perry
patent: 3975643 (1976-08-01), Toth
patent: 3995173 (1976-11-01), Sibley

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