Textiles: fluid treating apparatus – Machines – Single tub and automatic sequential operation mechanism
Patent
1990-08-13
1993-05-18
Stinson, Frankie L.
Textiles: fluid treating apparatus
Machines
Single tub and automatic sequential operation mechanism
68 1223, D06F 3302
Patent
active
052110370
ABSTRACT:
A controller for a washing machine with an alternately reversing drive motor wherein an electromechanical timer interfaces in conventional manner to electrical devices, and also switches line voltage to predetermined ones of a plurality of control lines to provide an encoded signal corresponding to the selected agitator stroke profile. The line voltage on the control lines is shifted to a DC voltage level compatible with a microprocessor that decodes the encoded signal, and then provides high rate control signals that gate high power solid state switches that switch line voltage to the respective stator windings of a permanent split capacitor motor. In such manner, the motor is driven in alternately reversing directions and, by way of a speed reducer, drives the agitator of the washing machine according to the selected stroke profile.
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364,976, Apr. 1990, European Patent Application 68/12.01.
Adamski Joseph R.
Ferguson Christopher
Petty J. Scott
Quandt William J.
Clark William R.
Raytheon Company
Sharkansky Richard M.
Stinson Frankie L.
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