Device for decurling a sheet of paper taken from a roll
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United States of America Patent
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Nov 22, 2005
Grant Date -
Mar 18, 2004
app pub date -
Sep 16, 2003
filing date -
Sep 18, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
The invention is directed to a roll assembly comprising an elongated, substantially rigid, cylindrical roll; a carrier sheet wrapped around the roll, having an inner edge attached to the roll in parallel with the roll axis and upper and lower surfaces with opposed longitudinal edges extending perpendicularly to the roll axis; and a friction strip extending along each longitudinal edge of the upper surface of the carrier sheet, wherein the coefficient of friction of the strips is greater than the coefficient of friction of the upper surface of the carrier sheet. The carrier sheet attached to the roll is preferable a plastic film made of polyester or polycarbonate having a thickness in the range of 5 to 15 mils. This sheet may be made up of one film sheet or multiple sheets. Soft, tacky, rubber friction strips are attached along the longitudinal edges of the upper surface of the sheet and can be is from approximately ½ inch to 2 inches in width and approximately 10 to 30 mils in thickness running for substantially the entire length of the film carrier sheet.
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