Feed control system for pumping fluids to dishwashers and the li

Details Feed control system for pumping fluids to dishwashers and the li Feed control system for pumping fluids to dishwashers and the li

1980-09-29

1983-02-15

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

417 38, F04B 4900, F04B 4902

Patent

active

043738630

ABSTRACT:
A peristaltic detergent feed pump and peristaltic rinse feed pump are employed to supply their respective ingredients to a washing machine, chemical reactor, or the like.
The detergent feed is supplied by a peristaltic pump, and the amount of feed is detected by a sensor such as a conductance probe controlled by a special circuitry means.
The peristaltic rinse feed pump is driven by a shaded pole motor, comprising a constant torque, A.C. drive and a D.C. electromagnetic, shaded pole brake portion.
The net effect of employing a circuit controlled conductance sensor and D.C. brake enables the detergent and rinse ingredients to be fed linearly to the dishwasher.

REFERENCES:
patent: 3519909 (1970-07-01), Mathias et al.
patent: 3667022 (1972-05-01), Quinn
patent: 3796925 (1974-03-01), Breeding
patent: 3800205 (1974-03-01), Zalar
patent: 3896827 (1975-07-01), Robinson
Onjanow, N., "A-C Drive Offers System Design Flexibility", Electro-Technology, Dec. 1960, pp. 131-137.

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