Two-stage extruder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 31, 1982
Grant Date -
N/A
app pub date -
Jun 10, 1980
filing date -
Jun 15, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two-stage extruder having a first, vertical stage and a second, separately driven, horizontal stage, the two stages being off-set from one another and lying at tangents to one another in the region of a connecting passage. The first stage has a rotatable plasticizing member with kneading blades off-set from one another and located between conveying screw components of said member and cylindrical pins projecting into the working chamber of said first stage. A bearing is provided for the member at its upper end and a cylindrical sleeve surrounds the lower end of the member and can be turned to control the effective size of the connecting passage or to eject material through a second outlet.
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