Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – For extrusion or injection type shaping means
Patent
1985-07-12
1987-02-17
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
For extrusion or injection type shaping means
165143, 2851331, 366144, 425378R, B29B 782
Patent
active
046436600
ABSTRACT:
A screw extrusion press having a barrel temperature control means is disclosed, which press permits the inner liner or cylinder of the barrel or a portion thereof to be replaced rapidly without necessitating simultaneous replacement of the temperature control means. This object is achieved by providing intermediate rings between individual extruder barrel portions, the rings each defining annular passages and guide means for the temperature control medium.
REFERENCES:
patent: 1497652 (1924-06-01), Browne
patent: 1954454 (1934-04-01), McFarland
patent: 2211387 (1940-08-01), Routh
patent: 3167812 (1965-02-01), Von Bennigsen
patent: 3937495 (1976-02-01), Anders
patent: 4121858 (1978-10-01), Schulz
patent: 4235581 (1980-11-01), Anders
Fortenberry J.
Herman Berstorff Maschinenbau GmbH
Woo Jay H.
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