Load control apparatus

Details Load control apparatus Load control apparatus

1977-11-11

1979-04-24

Yusko, Donald J.

Communications: electrical

Systems

Timer control

307141, 315293, 340693, H01H 700, H01H 4300, H05B 3702

Patent

active

041515153

ABSTRACT:
An improved load control apparatus for use in a two wire installation in which interconnection of the two wires is effective to energize a series connected load such as a light bulb, and including a power supply for developing a power supply potential and 60-Hz clocking pulses from energy obtained from the two wires, a coupler responsive to a command signal for alternately substantially preventing and permitting a light bulb energizing current to flow between the two wires and in both states for permitting energization of the power supply and a control logic energized by the power supply potential for counting the clocking pulses and for developing at preset times the coupler command signal whereby the switching apparatus in a first mode reduces energy consumption by turning off a light left on after business hours and, in a second mode by cycling a light in a predetermined pattern to discourage burglaries.

REFERENCES:
patent: 3940660 (1976-02-01), Edwards
patent: 4002925 (1977-01-01), Monahan
patent: 4079366 (1978-03-01), Wong

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