Method for operating a programmable washing machine and...

Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Manipulation of liquid

Reexamination Certificate

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Details

C068S012120, C068S058000

Reexamination Certificate

active

06868573

ABSTRACT:
The washing machine has a drum, which rotates inside a fixed suds container about an axis that rises toward the loading opening. Scooping devices mounted on the drum scoop suds onto the laundry with a scooping power that depends on the direction of rotation of the drum. In the scooping direction, the scooping devices uniformly wet the articles to be washed with the suds. During the wet treatment phase the drum is operated in alternating directions of rotation and with a speed that changes according to the direction of rotation for a respectively limited duration that can be varied in both directions of rotation. During the entire wet treatment phase the drum is driven in the scooping direction with equal time intervals and with uniform setpoint speed. The speed and the duration of the time intervals vary counter to the scooping direction along a wetting phase, a washing phase, and a rinsing phase.

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patent: 0 318 761 (1989-06-01), None

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