Web and method for making fluid filled units
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United States of America Patent
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Aug 4, 2020
Grant Date -
Jun 23, 2011
app pub date -
Feb 28, 2011
filing date -
Jun 1, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A preformed web and a method of producing dunnage units from the preformed web. The web is an elongate flattened thermoplastic tube having an inflation edge and an opposite edge. The tube includes spaced transverse seals that define sides of pouches. The tube includes lines of perforations that allow adjacent dunnage units to be separated. A starting point of the lines of perforations is spaced apart from the inflation edge. The positions of the starting point of the lines of perforations with respect to the inflation edge is selected such that a cutter that cuts the inflation edge clears the line of perforations. Binding or wrinkling is therefore not caused by engagement of the cutter with the lines of perforations.
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