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:
Mar. 28, 2006
Filed:
Dec. 17, 2003
Jari Almi, Tampere, FI;
Jarkko Veijola, Turku, FI;
Jarkko Nurmi, Turku, FI;
Antti Komulainen, Keuruu, FI;
Kari Juppi, Palokka, FI;
Jari Almi, Tampere, FI;
Jarkko Veijola, Turku, FI;
Jarkko Nurmi, Turku, FI;
Antti Komulainen, Keuruu, FI;
Kari Juppi, Palokka, FI;
Metso Automation OY, Helsinki, FI;
Abstract
A method of blowing drying gas against a paper web, and an impingement dryer of a paper machine. Drying gas is blown with an impingement dryer comprising several profiling chambers in the cross-direction of a paper machine, the cross-profile of the paper web being controlled with the drying gas blown from the profiling chambers. Each profiling chamber blows drying gas to its own effect range. The impingement dryer further comprises a return air chamber and return air ducts such that drying gas blown against the paper web from the profiling chambers is returned into the return air chamber through the return air ducts in such a way that some of the effect of the drying gas blown from the profiling chamber is at least partly prevented from reaching the effective area of the adjacent profiling chamber.