Method and apparatus for continuous injection molding
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United States of America Patent
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Mar 23, 2004
Grant Date -
Nov 22, 2001
app pub date -
May 8, 2001
filing date -
May 8, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and apparatus for forming continuous lengths of material with non-uniform cross-sections are disclosed. In accordance with one aspect of the present invention, a method for forming a continuous length of material that is of a substantially non-constant cross-section includes providing the material to a single shaping wheel. The material is in a first state, and the single shaping wheel includes a template that is arranged to form a three-dimensional shape using the material. The method also includes shaping the material to form an extended strip from the material, as well as at least one three-dimensional shape in the extended strip. The extended strip and the three-dimensional shape being formed using substantially only the single shaping wheel. In one embodiment, the method includes cooling the extended strip by cooling the material from a molten state to a solid state.
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