Extruder for plastic granules

Details Extruder for plastic granules Extruder for plastic granules

1997-05-09

1999-03-30

Soohoo, Tony G.

Agitating

Rubber or heavy plastic working

With specified feed means

366 79, 366102, 366144, 34179, B29B 724, B29B 742

Patent

active

058879722

ABSTRACT:
An extruder for melting plastic granules which is designed as a two-stage system in an integrated structural unit with an extruder chamber having an extruder screw in a heatable housing, as well as with a drying chamber having a heated conveying screw with displacement elements which dry the plastic granules and axially convey them to the extruder chamber without compression. In a preferred embodiment, the conveying screw has a larger diameter than the extruder screw, and displacement elements of greater depth than the extruder screw.

REFERENCES:
patent: 2783498 (1957-03-01), Richardson
patent: 3217783 (1965-11-01), Rodenacker
patent: 3493031 (1970-02-01), Williams, Jr.
patent: 3500901 (1970-03-01), Root, 3rd et al.
patent: 3563514 (1971-02-01), Shattuck
patent: 3572647 (1971-03-01), Stabeli
patent: 3781132 (1973-12-01), Latinen
patent: 3797550 (1974-03-01), Latinen
patent: 4636085 (1987-01-01), Lopernicky
patent: 5662415 (1997-09-01), Gisko

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