Method and device for the production of a number of coiled foil rolls
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United States of America Patent
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-
Jul 11, 2017
Grant Date -
Nov 12, 2015
app pub date -
Apr 29, 2015
filing date -
May 10, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The coiled foil rolls are reinforced in their edge region by folding. The coiled foil rolls are made by supplying a foil to coiling devices; cutting the foil in a conveying direction with a knife so that at least two foil sections are created which extend in a conveying direction; folding the edge regions of the foil sections by a folding device and laying the folded sections and the remaining part of the foil section on each other; and coiling the foil sections with the coiling devices. The knife or the folding device are moved simultaneous oscillating back and forth in a direction transversal to the conveying direction during the coiling of the foil sections.
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