Method of manufacture of flexible tube containers
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United States of America Patent
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Aug 24, 1999
Grant Date -
N/A
app pub date -
Jan 29, 1998
filing date -
Jun 29, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacture of a shaped flexible tube container, typically having a square or 'D' section tube, from a flexible plastic tube (15) of substantially round cross section, in which longitudinally extending creases (31, 32) are formed in the wall of the tube by a creasing means (16, 17) acting on the external surface of the tube. The creasing means preferably comprise at least air of rollers (16 or 17) and the tube passes between the two rollers.
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