Extrusion Dies, Inc.

Donald R Garton

Gregory M Wilson

Vernon J Krupa

Harry G Lippert

John W Ryan

An extrusion apparatus includes first and second die body portions each having a main body and a lip interconnected with the main body wherein the die body portions are joined such that a single die outlet is formed between and bounded by the lips. The apparatus also includes suitable structure for moving the lips to adjust the die outlet.

Dual flexible lip extrusion apparatus

An extrusion apparatus for extruding thermoplastic material includes first and second die body portions that define a manifold which has a back line and is in fluid communication with an outlet through which the thermoplastic material is extruded and wherein the back line is substantially parallel to the outlet. First and second body bolts join the first and second die body portions together. The first and second body bolts are disposed at first and second equal distances, respectively, from the back line and are further disposed on opposite sides of a centerline of the extrusion apparatus at third and fourth unequal distances therefrom, respectively, and are substantially equally spaced from the outlet.

Apparatus for extruding thermoplastic materials

A feed block for coextrusion apparatus includes a main body and a flow distribution module removably located therein. The feed block can be readily disassembled for cleaning and maintenance and the flow distribution module may be readily interchanged with another module without the need to disassemble the feed block or other components attached thereto.

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Chippewa Falls, WI, United States of America

Donald R Garton