Extrusion process and apparatus with modified preland

Details Extrusion process and apparatus with modified preland Extrusion process and apparatus with modified preland

1993-02-25

1993-10-26

Simmons, David A.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

264171, 2641761, 4253824, 425466, 425467, B29C 4700

Patent

active

052560520

ABSTRACT:
The present invention provides a novel extrusion apparatus including a flow channel having a modified preland channel that functions as a flow transition zone. The flow transition zone changes the widthwise flow volume of a stream passing therethrough so as to provide for substantially equal flow volume of the stream across the flow channel width as the stream exits from the transition zone.

REFERENCES:
patent: 2387718 (1945-10-01), Coleman
patent: 3057010 (1962-10-01), Reifenhauser
patent: 3360823 (1968-01-01), Tyrner
patent: 3759653 (1973-09-01), Schreiber
patent: 3825645 (1974-07-01), Fayet
patent: 3860383 (1975-01-01), Sirevicius
patent: 4043739 (1977-08-01), Appel
patent: 4217322 (1980-08-01), Sugano et al.
patent: 4372739 (1983-02-01), Vetter et al.
patent: 4600550 (1986-07-01), Cloeren
patent: 4780258 (1988-10-01), Cloeren
patent: 4789513 (1988-12-01), Cloeren
Cloeren Extrusion Apparatus O.
Wortberg, in Berechnung von Extruderwerkzeugen, VDI Verlag, 1978, pp. 97-126.
Gormar, Dissertation RWTH Aachen, 1968.
Cloeren Coextrusion Apparatus O (draft specification, claims and drawing).

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