System to synchronize the withdrawing and feeding motions of a flexible ribbon
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United States of America Patent
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Issued Date -
Dec 5, 2002
app pub date -
Apr 26, 2002
filing date -
Apr 6, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system to synchronize the withdrawing and feeding motions of a flexible ribbon (1), including a synchronizing chamber (6) through which is running the flexible ribbon, that presents a curvilinear part with the concavity pointing upwards (10, 11) by means of the suction of a device (4) applied at the bottom of the synchronizing chamber (6). A proximity sensor (4) detects the position of the curvilinear part (10, 11) and controls the synchronizing of the withdrawal and feeding motions, continuous or intermittent, of the running flexible ribbon.
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