Method and apparatus for metering and blending different materia

Details Method and apparatus for metering and blending different materia Method and apparatus for metering and blending different materia

1991-06-17

1992-09-22

Shaver, Kevin P.

Dispensing

Processes of dispensing

177 50, 222 55, 222 56, 222 57, 222 77, 222142, 222 64, 364567, 425135, B67D 508

Patent

active

051489430

ABSTRACT:
A plurality of individual plastic material ingredients are metered from respective individual material hoppers at controllable individual discharge rates, blended, and delivered to a common hopper. The blend of plastic material ingredients in the common hopper is discharged to an extruder or other material processing machine. The material processing rate of the processing machine is determined based on the sum of the discharge rates of the individual ingredients to the common hopper plus or minus the discharge rate of the blend from the common hopper to the processing machine. The discharge rates of the individual material ingredients from the individual hoppers to the common hopper is controlled as needed to maintain a preset recipe of the blend at the determined material processing rate of the processing machine.

REFERENCES:
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patent: 5014889 (1991-05-01), Hayashi
patent: 5064099 (1991-11-01), Iwako

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