Automatic washing machine incorporating a suds detection and con

Details Automatic washing machine incorporating a suds detection and con Automatic washing machine incorporating a suds detection and con

1997-12-22

1999-04-06

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

8159, 68 1202, 68 1212, 68 1214, 68 1219, D06F 3302

Patent

active

058902473

ABSTRACT:
A washing machine for automatically laundering articles of clothing by imparting mechanical actions upon the articles of clothing within a basket of the machine during a washing operation that includes a wash cycle and a preset number of rinse cycles incorporates a control system that functions to alter the mechanical actions imparted upon the articles of clothing during at least the wash cycle, and preferably both the wash cycle and at least one of the rinse cycles, and/or adds a supplemental rinse cycle to the overall washing operation in response to an indication of a high suds level condition in the machine. The control system receives signals indicative of an operating parameter of the washing machine, such as the input torque or operating speed of a motor of the machine, from a detection unit and utilizes these signals to determine the presence of high levels of suds and the need to transfer to a suds reduction mode of operation. In at least a preferred embodiment of the invention, provisions are made to recover from the suds reduction mode by returning to the normal washing operation and/or simply cancel the supplemental rinse cycle.

REFERENCES:
patent: 3065618 (1962-11-01), Cobb et al.
patent: 3192744 (1965-07-01), Pittendreigh et al.
patent: 4410329 (1983-10-01), Blevins et al.
patent: 4782544 (1988-11-01), Nystuen et al.
patent: 5491859 (1996-02-01), Richardson
patent: 5596889 (1997-01-01), Guerra et al.

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