GUIDE DEVICE FOR PARISON
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Mar 28, 2012
filing date -
May 19, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A guide device 3 for smoothing into a shape of a flat plate a parison P having a semi-circular shape in a planar cross-section, the parison being extruded from an extrusion device 1 and divided into two by a cutter 2, wherein the guide device includes a spiral guide element 4 that is in contact with the parison P while rotating about an axis, the spiral guide element being formed so as to rotate in opposite directions with each other on the left and right of a middle part 4C as a boundary so as to expand the parison P to the left and right. The spiral guide element 4 is formed in a protruding shape on an outer periphery of a shaft 5 rotated by the driving of a drive motor M.
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