Apparatus and method for controlling a washing machine

Details Apparatus and method for controlling a washing machine Apparatus and method for controlling a washing machine

1991-02-26

1992-09-29

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

68 1201, 68 1214, 68 1216, 68 1223, D06F 3302

Patent

active

051504898

ABSTRACT:
An apparatus and a method for controlling a washing machine. The washing machine control apparatus includes a mechanical timer and a controller including a microcomputer. The mechanical timer has a plurality of cam switches for controlling the steps of washing, rinsing and dehydrating by the washing machine, and the cam switches are actuated so as to open and close a feed water valve and a drain valve and to instruct the control to drive a drive motor according to a selected operation pattern. The controller controls the drive motor and drives a washing tube through an agitating member and includes a memory for storing a plurality of motor operation patterns corresponding to the washing, rinsing and dehydrating steps, so that the drive motor is driven according to an operation pattern controlled by the mechanical timer and stored in the memory of the controller.

REFERENCES:
patent: 4237565 (1980-12-01), Torita et al.
patent: 4449384 (1984-05-01), Jones
patent: 4468600 (1984-08-01), Barthel et al.
patent: 4510778 (1985-04-01), Cotton
patent: 4679414 (1987-07-01), Takimoto et al.
patent: 4843671 (1989-07-01), Hirooka et al.
patent: 5012658 (1991-05-01), Shikamori et al.

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