Method and apparatus for guiding a zippered film in form, fill and seal package making machines
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United States of America Patent
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Feb 19, 1991
Grant Date -
N/A
app pub date -
Feb 1, 1990
filing date -
Feb 1, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A forming shoulder for a forming and filling tube of a form, fill and seal machine has a skirt provided with a guide channel for a longitudinal zipper area of a package making material sheet running over the forming shoulder, thereby retaining the zipper area and the sheet against lateral drifting.
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