Power circuit control programmable timer

Details Power circuit control programmable timer Power circuit control programmable timer

H - Electricity

01

H

342/19.7

H01H 43/02 (2006.01) G05B 19/04 (2006.01)

Patent

CA 1169950

Abstract of Disclosure One form of the timer is designed to be mounted over and behind a conventional wall switch cover plate and includes a two position timer condition-setting arm, a rotatable and depressible time setting dial knob and an in- dicator on the front of the cover plate. When the arm is moved to a timer-on position, the indicator flashes to indi- cate that timer programming is needed. This may be achieved in real time over the first twenty-four hours after a 30 minute play period by depressing the knob acting as an on and off power switch control push button to turn the light circuit on and off in a normal manner. Fast manual program- ming is achieved by rotating the knob to various time set- tings and depressing the knob to set ON or OFF markers in timer memory. A full twenty-four hour programming is corn- pleted by either completing a full rotation of the knob over the full twenty-four hour time settings, with at least on ON and one OFF derpession, or by a similar pair of knob depressions without such a full rotation, OFF markers then being automatically set by the timer to complete the timer programming. The indicator comes steady-on to indicate that the timer is fully programmed and in an automatic mode of operation. The automatic operation is temporarily overrid- den by depression of the knob or permanently overridden by a simple distinctive speed or time duration depression of the knob.

373577

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