Method and apparatus for folding a web
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United States of America Patent
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-
Mar 30, 2004
Grant Date -
May 1, 2003
app pub date -
Dec 3, 2002
filing date -
Nov 1, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method for making a longitudinal fold in a web, including the steps of: (1) providing a web-supporting device; (2) providing a folding belt disposed adjacent to a first longitudinal edge of the web-supporting device; (3) providing the web which is superimposed onto a web-contacting surface of the web-supporting device such that a first longitudinal edge of the web extends laterally beyond the first longitudinal edge of the web-supporting device and at least partially onto the folding belt; and (4) folding the first longitudinal fold of the web by twisting the folding belt around its longitudinal axis of rotation. The longitudinal axis of rotation of the folding belt extends parallel to the longitudinal fold line of the web.
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