Extrusion machine barrel having a three-lobe bore, and liner therefor
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United States of America Patent
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Aug 7, 2001
Grant Date -
N/A
app pub date -
Jul 15, 1999
filing date -
Nov 21, 1996
priority date (Note) -
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Abstract
An extrusion machine having a barrel containing a bore formed of three lobes, designed to receive a liner whose outer face is also formed of three lobes and which has two secant bores which have parallel axes and are adapted to receive two screws.
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