Controlling method and a measuring mixer for liquids and powders

Details Controlling method and a measuring mixer for liquids and powders Controlling method and a measuring mixer for liquids and powders

1988-05-02

1989-05-16

Jenkins, Robert W.

Agitating

Having specified feed means

Responsive to condition sensor

137 88, 222 56, 366 18, 366 20, 366 21, 366141, B01F 1504, G05D 1100

Patent

active

048305081

ABSTRACT:
A measuring mixer for use with either liquids or powders in which different supply systems supply different stock liquids or powders to a receiving container from supply containers. A continuously variable flow regulator is associated with each supply container. The cumulative weight of the receiving container is measured and compared with a target weight. Then a computation section calculates a desired flow rate based upon both the deviation from the target weight and a time variation thereof. This calculation is preferably done according to fuzzy inference. The desired flow rate is then used to control a selected one of the flow regulators so that the measurement is sequentially performed between supply systems. Optionally, the receiving container can be movable between the different supply systems.

REFERENCES:
patent: 3860030 (1975-01-01), Mayer
patent: 4209258 (1980-06-01), Oakes
patent: 4525071 (1985-06-01), Horowitz
patent: 4581704 (1986-04-01), Mitsukawa
patent: 4629392 (1986-12-01), Campbell

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