Method and apparatus for distributing material in a profile...

Details Method and apparatus for distributing material in a profile... Method and apparatus for distributing material in a profile...

2005-09-20

2005-09-20

Eashoo, Mark (Department: 1732)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

C425S131100, C425S461000, C425S465000

Reexamination Certificate

active

06945764

ABSTRACT:
A method and apparatus for extruding plastic products having large cross sections, which require a correspondingly large die cross section, is described in which the cross section of the die is divided into regions of predetermined flow and separate flow streams are supplied to each region in proportion to the relative size of the flow region to the overall die cross section.

REFERENCES:
patent: 4187068 (1980-02-01), Vassar
patent: 4405547 (1983-09-01), Koch et al.
patent: 4846658 (1989-07-01), McMullen
patent: 4960375 (1990-10-01), Saito et al.
patent: 5197514 (1993-03-01), Jaun
patent: 5219588 (1993-06-01), England et al.
patent: 5500173 (1996-03-01), Dugan
patent: 5702659 (1997-12-01), Kragle et al.
patent: 6533565 (2003-03-01), Guillemette

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