Apparatus for forming a perforated tear-line in a blank for a parallelepipedic package
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United States of America Patent
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Apr 8, 1986
Grant Date -
N/A
app pub date -
Jul 7, 1983
filing date -
Jul 17, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus which produces a precisely shaped and positioned perforated line in a blank for a parallelepipedic package has a blade and a roller for pressing the blank against the blade. The blade is stationary relative to the packaging blank and provides a perforated line which does not penetrate the inner layer of the packaging material. The roller is mounted on a connecting bar which is linked to a reciprocating drive. The roller moves in a guide which positions the roller relative to the blade during each stroke of the reciprocating drive.
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