Switch circuit arrangement

Details Switch circuit arrangement Switch circuit arrangement

1981-09-15

1984-01-10

Brigance, Gerald L.

Communications: electrical

Condition responsive indicating system

Specific condition

340365E, 200310, G08B 536

Patent

active

044255632

ABSTRACT:
A switch circuit arrangement, wherein a plurality of switch means each comprising paired display lamp and self-restore type switch contact are provided, and a control circuit is also provided in association with said switch means. By actuating any one of the switches, a display lamp paired therewith is lit, and at the same time, a control signal is derived from a detector circuit including I.sup.2 L element. The control signal thus derived is passed to a controlled device, whereby the display lamp is lit and maintained in the lit state.

REFERENCES:
patent: 3986039 (1976-10-01), Bovitz
patent: 4092640 (1978-05-01), Satoh
patent: 4138613 (1979-02-01), Tanaka

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