Apparatus and method for deforming sheet material
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United States of America Patent
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Apr 3, 2007
Grant Date -
Jun 30, 2005
app pub date -
Dec 30, 2003
filing date -
Dec 30, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Presented herein is an apparatus and method for deforming a sheet material. The apparatus includes a deforming roller having a plurality of circumferential depressions and at least one cord in rotational engagement with the roller and adapted to press the material into the depressions. The method includes the steps of providing a rotating deforming roller having circumferential depressions, at least one cord aligned to fit within the depressions and at least one sheet material, and feeding the material in a first direction between the roller and cord and deforming the material by pressing it at least partially into the depressions with the cord. The deformation may include stretching or extending the material, and/or aperturing the material, and/or producing topographical shapes or surface features in the material.
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