Electricity: motive power systems – Motor-reversing – Automatic and/or with time-delay means
Patent
1995-11-08
1998-10-06
Cabeca, John W.
Electricity: motive power systems
Motor-reversing
Automatic and/or with time-delay means
318256, 318466, 318 17, 160310, 49349, H04Q 914
Patent
active
058181830
ABSTRACT:
A device for controlling the tilt angle of window blind blades having a motor with an output shaft and a slip clutch coupling the output shaft to a tilt control mechanism. A receiver and demodulator receives a modulated infra red carrier signal modulated with a code and to demodulate the carrier to produce corresponding electrical pulses. A decoder is coupled to an output of the receiver and demodulator and when powered provides an output on one of several output lines depending upon the coding of pulses from the receiver and demodulator. A motor driver circuit has an input coupled to the decoder and an output coupled to the motor, is operative to drive the motor in either a forward or reverse direction depending upon the output from the decoder, and a decoupler decouples the motor from the wand upon reaching an extreme of tilting of the blade when the motor is still running.
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Kwok Yu Chiu
Lambert James Andrew
Weber Gregory Alan
Auto-Tilt Enterprises, Ltd.
Cabeca John W.
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