Screw extruder with improved mixing pins
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United States of America Patent
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Nov 9, 2004
Grant Date -
Jun 17, 2004
app pub date -
Apr 16, 2003
filing date -
Feb 14, 2001
priority date (Note) -
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Abstract
An extruder, in particular for elastomer material, is described, the extruder being of the type comprising an extruder body provided with a cylindrical chamber inside which an extrusion screw is rotatably inserted, and a plurality of mixing pin members inserted in the casing of the cylindrical chamber and projecting inside the the chamber, wherein each pin member is arranged tangential to the core of the screw, opposite interruptions in the thread of the screw and passes through the whole of the chamber, engaging in both the opposite walls of the casing.
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