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:
Sep. 06, 2011
Filed:
Jan. 25, 2007
Antti Komulainen, Keuruu, FI;
Kari Juppi, Palokka, FI;
Pasi Kekko, Toivakka, FI;
Markku Lummila, Jyväskylä, FI;
Antti Komulainen, Keuruu, FI;
Kari Juppi, Palokka, FI;
Pasi Kekko, Toivakka, FI;
Markku Lummila, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A fiber-web machine dryer section has a drying group with single-wire draw so the drying wire (F) presses the web (W) against heated cylinder surfaces with the web (W) at the side of the outside curve of reversing cylinders () situated between drying cylinders (). A pocket space (T) is formed between two adjacent drying cylinders () and a reversing cylinder () situated between them, and the drying wire (F). A negative pressure component () placed in the pocket space (T) creates a pressure difference over the drying wire (F) and the web (W) for attaching the web (W) to the drying wire (F) so the cross-direction shrinkage of the web (W) is controllable. The wire tension (F) is maintained at a level help control cross-direction shrinkage of the web. The pocket space (T) is sealed by sealing members () to maintain negative pressure in the pocket space.