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:
Aug. 03, 2004
Filed:
Oct. 09, 2002
Jari P. Hämäläinen, Palokka, FI;
Hannu Lepomäki, Laukka, FI;
Juhana Lumiala, Jyväskylä, FI;
Pasi Sirviö, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A paper/board machine headbox ( ) has a stock inlet header (J), a tube bank ( ), a turbulence generator ( ) and a slice opening ( ) which is provided with a profile bar. The headbox ( ) is provided with cross direction measuring sensors (D , D ; D ), by means of which the flow rate profile of the headbox ( ) is determined, and the profile bar of the slice opening ( ) of the headbox ( ) is adjusted in the cross direction on the basis of the thus determined flow rate profile. The headbox ( ) is provided with measuring sensors (D , D ; D ) for determining the cross direction flow rate profile of the headbox ( ) and with means for adjusting the profile bar on the basis of the flow rate profile.