Method and apparatus for extrusion of thermoplastic handrail
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United States of America Patent
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May 29, 2018
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N/A
app pub date -
Jun 19, 2015
filing date -
Sep 10, 2007
priority date (Note) -
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Abstract
A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.
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