Machine And Method For Forming Tubes By Helical Winding Of Strips Of Web Material
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United States of America Patent
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Issued Date -
Jan 10, 2008
app pub date -
Nov 18, 2005
filing date -
Nov 22, 2004
priority date (Note) -
Abandoned
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Abstract
The invention relates to a machine for producing tubular articles (T) by helical winding of strips of web material, comprising a spindle (4) and a winding member (7) to helically wind the strips (S1, S2) of web material around the spindle. To improve adhesion between strips pressure is applied to the overlapping turns of strips of web material by an ultrasonic generator (33).
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