Multiwall pouch bag with vent strip
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United States of America Patent
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-
Sep 4, 1984
Grant Date -
N/A
app pub date -
Mar 8, 1982
filing date -
Mar 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiwall bag having an interior plastic pouch formed from a sealed plastic tube having a longitudinal seam comprising overlapping tube margins sealed together by two spaced seals to provide a channel, one of the tube margins being formed with openings providing communication between the interior of the tube and the channel to permit escape of air from the tube. A strip of material is disposed along the length of the channel to prevent the overlapping tube margins from adhering to each other between the spaced seals.
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