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Knight Equipment Corp.

William L Mason

William K Russell

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.

Feed control system for pumping fluids to dishwashers and the like

A peristaltic feed pump, driven by a shaded pole motor, is provided to feed sticky, thixotropic fluids such as soaps, detergents, rinse additives, etc., to a dishwasher, chemical reactor, and the like. The shaded pole motor comprises a constant torque, A.C. portion and a D.C. electromagnetic brake portion. The net effect of the motor enables the fluid to be fed to the dishwasher by the pump within reasonable limits of linearity.

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Garden Grove, CA, United States of America

William L Mason