Process for manufacturing a pouch-type form of packaging
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United States of America Patent
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Jan 1, 2008
Grant Date -
May 3, 2007
app pub date -
Dec 18, 2006
filing date -
Dec 23, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process for manufacturing a tetrahedral-shaped pouch (100 from a flexible strip of film material is such that a tube (13) is formed from a strip (32) in a continuous manner involving the creation of a longitudinal sealing seam (12), and a tetrahedral shaped pouch (10) is formed from the tube (13) by means of alternating forming a first transverse sealing seam (14) running transverse to the longitudinal seam (12) and second transverse sealing seam (16) running essentially perpendicular to and a distance from the first transverse seam (14), whereby the second transverse seams (16) are situated in the region of a tetrahedral corner (18) of the pouch (10), such that an essentially tube outlet part (20) for pouring that is closed as its free end (22) is formed projecting out from the pouch (10). The second transverse seams (16) are positioned such that the outlet parts (20, 20') projecting out from two neighboring tetrahedral shaped pouched (10, 10') are delimited by regions (16a, 16a') of neighboring transverse sealing seams (16, 16') that are arranged spaced apart from each other and their free ends (22) lie facing each other separated by a common part (16b) of the transverse sealing seams (16, 16').
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