Apparatus and methods for feeding a substantially uniform quanti

Details Apparatus and methods for feeding a substantially uniform quanti Apparatus and methods for feeding a substantially uniform quanti

1993-04-27

1993-11-16

Jenkins, Robert W.

Agitating

With specified discharge means

With rotatable or oscillatable stirrer

366 20, 366 76, 366151, 366132, 222 63, 264 407, 264DIG69, 425145, B01F 1502

Patent

active

052617432

ABSTRACT:
Apparatus and methods for mixing plastic materials having different densities to supply a substantially uniform quantity of the mixture of such materials to an extruder or other processing machine. The mixture of materials is fed forcibly from the mixer to the processing machine by a variable speed auger. The mixture exerts a reactive force on the auger commensurate with the bulk density of the mixture. A sensor detects variations in the reactive force and produces signals which adjust the rate of rotation of the auger in inverse relation to the variations in the bulk density of the mixture to maintain the quantity of the mixture discharged from the mixer per unit of time within a selected range.

REFERENCES:
patent: 4091462 (1978-05-01), Igarashi
patent: 4108334 (1978-08-01), Moller
patent: 5045252 (1991-09-01), Hahn
patent: 5110521 (1992-05-01), Moller
patent: 5110522 (1992-05-01), Inaba

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