Fully automatic, photosensor-controlled time switch device

Details Fully automatic, photosensor-controlled time switch device Fully automatic, photosensor-controlled time switch device

1993-09-07

1996-02-27

DeBoer, Todd

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

H01H 4724

Patent

active

054953855

ABSTRACT:
A fully automatic, photosensor-controlled time switch device, which includes a control box having an input port connected to power supply and an output port for connecting the load to be controlled, and a control circuit installed inside the control box and connected between the input port and the output port, the control box consisted of a photosensor, a set of relays, a multiple contact switch, a time control switch, and a load switch for controlling the operation of the load automatically at a predetermined time period.

REFERENCES:
patent: 3337778 (1967-08-01), Becker
patent: 3673413 (1972-06-01), Lee
patent: 3961180 (1976-06-01), Schultz
patent: 3993569 (1976-11-01), Zinsmeyer et al.
patent: 3995202 (1976-11-01), Powers
patent: 4095100 (1978-06-01), Selick

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