Extrusion method and extruder

Details Extrusion method and extruder Extrusion method and extruder

2006-06-06

2006-06-06

Eashoo, Mark (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

C210S791000

Reexamination Certificate

active

07056456

ABSTRACT:
In an extrusion method and an extruder, an annular material flow is created by extruding material into an annular extrusion channel (6). The extruder has a tubular filtering unit (7) arranged to the annular extrusion channel (6), whereby the annular material flow flows through the tubular surface of the filtering unit (7).

REFERENCES:
patent: 3495299 (1970-02-01), Chazal et al.
patent: 0 422 042 (1995-01-01), None
patent: 2 729 099 (1996-07-01), None
patent: A 7-1552 (1995-01-01), None
patent: A 10-216418 (1998-08-01), None
patent: 00/29196 (2000-05-01), None

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