Defective web identification system and method
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United States of America Patent
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Mar 5, 2024
Grant Date -
Oct 19, 2023
app pub date -
Apr 19, 2022
filing date -
Apr 19, 2022
priority date (Note) -
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Abstract
Systems and methods of indicating to a line worker when there is a defective zipper profile extruded onto a generally flat plastic web while moving in a feed direction in a re-sealable container production line. The system includes a sensor for detecting the defective zipper profile and a web distortion device that actuates in response to the sensor detecting the defect. The web distortion device keeps the web bunched together while it spools onto a roll support device located downstream thereby making it readily apparent to a line worker that the bunched segment contains the defective segment.
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