Apparatus and method for monitoring and controlling rate of bath

Details Apparatus and method for monitoring and controlling rate of bath Apparatus and method for monitoring and controlling rate of bath

1998-05-29

2000-07-04

Stinson, Frankie L.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

68184, 68189, D06B 310

Patent

active

060832843

ABSTRACT:
A method and apparatus for treating a load with dyeliquor includes a pump/motor set, a dyeliquor circulating system holding the load and directing all the dyeliquor pumped by the pump to flow through the load, a motor current measurement device to measure current consumed by the electric motor while driving the pump, and a throttle valve adjusted to create a flowrate of the dyeliquor through the dyeliquor circulating system based on the current measured by the motor current measurement device. The flowrate of the dyeliquor increases linearly in proportion with increases in the current consumed by said electric motor while driving said pump. The apparatus also has a low system resistance to fluid flow allowing variations in a load resistance of the load to fluid flow to produce corresponding variations in the current of the electric motor measurable by the motor current measurement device.

REFERENCES:
patent: 3145555 (1964-08-01), Krantz
patent: 3631691 (1972-01-01), Karrer et al.
patent: 3760614 (1973-09-01), Bergholtz
patent: 3916653 (1975-11-01), West et al.
patent: 5323629 (1994-06-01), Aurich et al.
patent: 5787733 (1998-08-01), Volpi

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