Extruder screw

Details Extruder screw Extruder screw

1975-10-03

1977-04-05

Coe, Philip R.

B29B 112

Patent

active

040158330

ABSTRACT:
An extruder screw having an elongated core with helical flights with a plurality of axially spaced shear rings along the length thereof. The shear rings have radial slots that extend axially through the shear rings. The length and width of the slots vary in dimension.

REFERENCES:
patent: 3287477 (1966-11-01), Vesilind
patent: 3344215 (1967-09-01), DeWitz et al.
patent: 3484507 (1969-12-01), Smith
patent: 3762692 (1973-10-01), Schippers
patent: 3780994 (1973-12-01), Kneller et al.
patent: 3788612 (1976-01-01), Dray

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