Extruder

Details Extruder Extruder

1974-11-06

1976-01-13

Smith, Al Lawrence

Plastic article or earthenware shaping or treating: apparatus

With separate and distinct upstream agitating or kneading means

Within pressurizing chamber

B29B 104

Patent

active

039320863

ABSTRACT:
Improvement of a melting extruder in which a material is moved by the screw by providing a communicating path which permits reverse flow of the material in the passage throttle part in which the material is compressed.

REFERENCES:
patent: 766260 (1904-08-01), Jaques
patent: 2787022 (1957-04-01), Chisholm
patent: 2991503 (1961-07-01), Rietz
patent: 3506415 (1970-04-01), Paladino
patent: 3596320 (1971-08-01), Manning et al.
patent: 3826477 (1974-07-01), Kunogi et al.

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