EXTRUSION METHOD AND APPARATUS
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United States of America Patent
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N/A
Issued Date -
Oct 30, 2008
app pub date -
Apr 24, 2007
filing date -
Apr 24, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An extrusion apparatus including a mixing chamber comprising two intersecting housing bores and an inlet positioned to receive material into the mixing chamber. Two screw shafts are supported for rotation about respective generally parallel axes and include respective screw sections positioned for co-wiping intermeshing rotation within the respective housing bores of the mixing chamber. The apparatus supports screw shaft rotational speeds greater than approximately 800 rpm and includes screw shaft conveying portions that are rotatably cantilevered for self-journaled support within respective separate conveying chambers arranged generally parallel to one another downstream of the mixing chamber.
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