Plastic bag making apparatus
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United States of America Patent
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Mar 28, 2017
Grant Date -
May 31, 2012
app pub date -
Mar 24, 2011
filing date -
Mar 26, 2010
priority date (Note) -
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Abstract
Upon cutting a corner of a plastic bag, the cut-out portion is prevented from attaching to the plastic bag. A plastic film (1) is trimmed by a trimming cutter (7) to form a selvage (8). Every time that the plastic film (1) is intermittently fed, the trimming cutter (7) is moved by a trimming cutter moving mechanism, so that a corner of the plastic bag is cut by the trimming cutter (7) and the cut-out portion (11) is continued from the selvage (8).
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