Condition-initiated load control circuit

Details Condition-initiated load control circuit Condition-initiated load control circuit

1974-11-26

1976-11-30

Envall, Jr., R. N.

H03H 900

Patent

active

039952029

ABSTRACT:
In the device disclosed, a load is energized from energy-carrying lines. A detector responsive to a cyclically recurring physical condition, such as daylight, places a switch either in an operating mode or an idling mode in response to the absence of the condition. A control shifts from an idling mode to an operating mode in response to the detector being in a given one of its modes and shifts back to the idling mode after a given time less than the period of the cyclically recurring physical condition. A circuit responds to the control being shifted to its operating mode in response to the given one of the modes of the detector and responds to the detector simultaneously being in the operating mode so as to connect the lines to the load.

REFERENCES:
patent: 2697803 (1954-12-01), Eadie, Jr.

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