Timing control circuit

Details Timing control circuit Timing control circuit

1978-03-31

1980-04-15

Gellner, Michael L.

Electrical transmission or interconnection systems

Intermittent regulatory interruption of system

Condition responsive

307117, 307132E, 315156, H01H 4304, G05B 1902

Patent

active

041985745

ABSTRACT:
A timing control circuit for use in automatically and intermittently operating electrical appliances, such as lamps, for security purposes in homes, offices and other buildings. The circuit is adapted to plug into a conventional wall socket and to receive conventional two-prong plugs of electrical appliances. When enabled, the circuit intermittently applies power from the wall socket to a connected electrical appliance so that the appliance is turned on and off automatically over some period of time. The circuit includes manually operable switches to enable a user to select the intermittency or on-off pattern of operation of the appliance and the period of time over which such pattern is developed. Controlling turn-on and turn-off of lamps, radios, or the like gives the appearance of occupancy of a dwelling and therefore discourages would be burglars and prowlers.

REFERENCES:
patent: 3440347 (1969-04-01), Spencer
patent: 3961183 (1976-06-01), Dubot

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