Liquid detergent dispensing apparatus for washing machines

Details Liquid detergent dispensing apparatus for washing machines Liquid detergent dispensing apparatus for washing machines

1991-08-01

1993-03-23

Stinson, Frankie L.

Textiles: fluid treating apparatus

Machines

Single tub and automatic sequential operation mechanism

68 17R, 68 1203, 222651, D06F 3902

Patent

active

051953382

ABSTRACT:
A liquid detergent dispensing apparatus is for use in a washing machine and includes an oscillator which generates a pulse signal having a frequency corresponding to a quantity of liquid detergent to be added to the wash tank of the washing machine. A metering pump, which is for dispensing a constant delivery quantity of detergent from a reservoir, is selectively driven for a period of time corresponding to the frequency of the pulse signal generated by the oscillator. Further, the metering pump is selectively driven in response to an operating state of an actuator of a multicompartment detergent container and in response to an operating state of a heating element of the washing machine.

REFERENCES:
patent: 2570148 (1951-10-01), Neuroth et al.
patent: 3044285 (1962-07-01), Koplin
patent: 3510026 (1970-05-01), Wright
patent: 3721908 (1973-03-01), Jurjano
patent: 3771333 (1973-11-01), Jurjans
patent: 3804297 (1974-04-01), Jurjans
patent: 4509543 (1985-04-01), Livingston et al.
patent: 4756321 (1988-07-01), Livingston et al.

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