The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2003
Filed:
Jan. 31, 2000
Applicant:
Inventor:
Koch H. John, Wisconsin Rapids, WI (US);
Assignee:
Stora Enso North America Corp., Wisconsin Rapids, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B31F 1/00 ;
U.S. Cl.
CPC ...
B31F 1/00 ;
Abstract
A method and apparatus are disclosed for reducing or eliminating the precurl in a web of paper. The apparatus includes a decurler which may operate in conjunction with a lead in roll and a bowed roll. Motions are provided to the lead in roll and decurler so that the wrap of the web on the bowed roll remains essentially unaffected by the movement of the decurler into and out of the web. One of the above apparatus or a lead out roll may be skewed to address uneven cross machine curl profile, while the bowed roll addresses baggyness and the decurler, of course curl.