Multiple extrusion apparatus

Details Multiple extrusion apparatus Multiple extrusion apparatus

1975-12-08

1978-02-28

Husar, Francis S.

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

425382R, 425464, B29F 306

Patent

active

040764770

ABSTRACT:
A plurality of extrusion dies are operated from the same source of heat-plastified polymeric material, e.g., from a single barrel extruder, via a distribution manifold which includes forwardly diverging flow passages each leading to a different one of the dies. The flow passages of the manifold have equal flow capacities and compensation for differences between the extrusion dies is accomplished by equipping each die assembly with a replaceable flow control insert, the inserts being so dimensioned that the pressure differential across each die assembly, including the insert, is the same.

REFERENCES:
patent: 3193878 (1965-07-01), Corbett
patent: 3256563 (1966-06-01), Criss et al.
patent: 3561053 (1971-02-01), Pearson
patent: 3702226 (1972-11-01), Kim et al.

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