Method and apparatus for manufacturing tube-shaped packages made of flexible material
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United States of America Patent
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Jan 28, 2003
Issued Date -
N/A
app pub date -
Feb 3, 2000
filing date -
Jun 4, 1998
priority date (Note) -
Expired
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Abstract
A method for manufacturing tube-shaped packages made of flexible material, characterized in that an annular portion is pushed inward in a U-shaped arrangement at at least one closed end of a tube-shaped package, said annular portion being at least partially heat-sealed to the remaining part of the package at facing portions thereof. An apparatus for carrying out the method. A package obtained with the method and the apparatus.
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