Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1984-01-23
1985-06-04
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
425114, 425462, 427120, 428379, B29F 310
Patent
active
045213631
ABSTRACT:
An apparatus and method for extruding a thin uniform coating of fluent plastic material about a continuously advancing strand wherein the fluent plastic material is directed radially toward the strand through a constricted annular feed passage. The strand with the fluent plastic material adhering thereto is then advanced through a passageway conically converging to an exit end and effective to develop hydrodynamic pressure forces which center the strand within the passageway.
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Essex Group Inc.
Sommer Robert D.
Thurlow Jeffery
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