Multiple-stage screw for blending materials

Details Multiple-stage screw for blending materials Multiple-stage screw for blending materials

1995-09-08

1996-11-12

Cooley, Charles E.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 82, B29B 742, B01F 708

Patent

active

055733310

ABSTRACT:
A multiple-stage extruder for mixing and extruding plastic. A central area of the screw includes a first blending area that has several obliquely positioned grooves. A second blending area includes a plurality of round protrusions. Both ends of the screw are supported in a main body to prevent vibration of the unit.

REFERENCES:
patent: 2453088 (1948-11-01), Dulmage
patent: 2753595 (1956-07-01), Dulmage
patent: 2838794 (1958-06-01), Munger et al.
patent: 3006029 (1961-10-01), Saxton
patent: 3788612 (1974-01-01), Dray
patent: 3957256 (1976-05-01), Murakami
patent: 4659230 (1987-04-01), Son et al.
patent: 5013233 (1991-05-01), Semmekrot
patent: 5297948 (1994-03-01), Sadr
patent: 5449484 (1995-09-01), Gusik et al.

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