Extrusion die assembly for obtaining differently shaped products
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United States of America Patent
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Oct 2, 2001
Grant Date -
N/A
app pub date -
Aug 28, 1998
filing date -
Aug 31, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An extrusion die for making shaped extrudate products has structure which defines a central duct which is convergent from a duct inlet opening to a duct outlet opening and has structure which defines a tubular extrusion duct co-axial with the central duct and which also is convergent from a duct inlet opening to a duct outlet opening. A feed diaphragm member has a portion which converges to an opening which opens to a distribution chamber which diverges so that substance being extruded is distributed to the central and tubular ducts. Diaphragms are provided in the ducts to delimit passage of extrudate substance into the ducts. Additionally, members are provided for altering the position of the central duct and its duct outlet relative to the second duct member and its outlet.
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