Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Plural means being diverse – or parallel and intermeshing or...
Patent
1980-09-03
1983-05-31
Czaja, Donald E.
Plastic article or earthenware shaping or treating: apparatus
With separate and distinct upstream agitating or kneading means
Plural means being diverse, or parallel and intermeshing or...
264DIG65, 366 83, 366 84, 425205, 425DIG39, B29B 104
Patent
active
043858830
ABSTRACT:
An extruder for thermoplastic or elastomeric materials has a mastication stage with one or more feedscrews preceded by a preheating zone in which the incoming bulk material is circulated and possibly recirculated by two screw-type conveyor members or augers in a loop within a heated extension of the extruder housing. The augers may be counterrotatingly disposed in two juxtaposed cylindrical compartments or may be coaxially nested and corotating with opposite pitch.
REFERENCES:
patent: 561298 (1896-06-01), Werner
patent: 2494891 (1950-01-01), Marshall
patent: 2653351 (1953-09-01), Henning
patent: 2698962 (1955-01-01), Swallow
patent: 3059595 (1962-10-01), Locatelli
patent: 3574890 (1971-04-01), Gresch
patent: 3609828 (1971-10-01), Compa et al.
patent: 3923291 (1975-12-01), Matsuoka et al.
patent: 3963558 (1976-06-01), Skidmore
patent: 3979488 (1976-09-01), Greenhalgh et al.
patent: 4214862 (1980-07-01), Kolossow
American Maplan Corporation
Czaja Donald E.
Ross Karl F.
Thompson W.
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