Die for manufacturing co-extruded structural shapes
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United States of America Patent
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Nov 15, 1994
Issued Date -
N/A
app pub date -
Feb 28, 1994
filing date -
Nov 28, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A die for co-extruding structural shapes is provided with a central cylindrical duct through which the molten polymeric material destined to constitute the central core of the structural shape flows, and a conical gap, coaxial with the central duct, into which the polymeric coating material is fed which will constitute the outer skin of the structural shape.
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