Method and device to control the straightness and torsions of long products
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United States of America Patent
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Sep 4, 2007
Grant Date -
Sep 23, 2004
app pub date -
Jan 27, 2004
filing date -
Jan 28, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Device and method to control the straightness and torsions of a long product (11), comprising at least two profile-detection devices (12a, 12b, 12c), each presenting a visual field (13) that includes a perimeter segment (18a, 18b, 18c) of the section of the product (11). The detection devices are aligned along the product (11) and are oriented so as to detect homologous perimeter segments (18a, 18b, 18c) located on different planes. The device also comprises a command unit which receives and compares with each other the section images detected at the same instant by the detection devices (12a, 12b, 12c) and determines, according to this comparison, the lack of straightness and/or the presence of torsions in the product (11).
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