Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Manipulation of liquid
Patent
1990-12-28
1992-05-19
Coe, Philip R.
Bleaching and dyeing; fluid treatment and chemical modification
Fluid treatment
Manipulation of liquid
68 17A, D06F 3902
Patent
active
051135426
ABSTRACT:
In an automatic washing, a wash additive dispenser is disposed in a tub, and a drive mechanism is provided for selectively rotating the dispenser at a first angular speed and a second, greater angular speed. The wash additive fluid dispenser may be mounted on an agitator. The dispenser includes first passages for permitting liquid flow from the dispenser into the tub when the dispenser is rotated at least as fast the first angular speed, and second passages for permitting liquid flow from the dispenser into the tub when the dispenser is rotated as least as fast as the second angular speed. The dispensing cup can include a frutoconical portion having a sidewall diverging upwardly and terminating in a radially outwardly-extending toroidal portion disposed at the upper end of the frustoconical portion. A method of dispensing wash additive fluid is disclosed which includes the steps of retaining wash additive fluid in the dispenser during agitation, and centrifugally dispensing wash additive fluid into the tub from dispensing passages in the dispenser wall during at least one spin cycle. The method may include the substeps of centrifugally dispensing a first portion of wash additive fluid into the tub during a first spin cycle, and centrifugally dispensing a second portion of wash additive fluid into the tub during a second spin cycle.
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Farrington Sheryl L.
Pastryk Jim J.
Coe Philip R.
Whirlpool Corporation
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