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:
Jun. 15, 2004
Filed:
Aug. 07, 2002
Jukka Linnonmaa, Gladstone, FI;
Vilho Nissinen, Numminen, FI;
Jukka T. Mäkinen, Kerava, FI;
Jouni Raki, Espoo, FI;
Pasi Rajala, Järvenpää, FI;
Jari-Matti Karjanmaa, Hyvinkää, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A method and apparatus for determining the profile of a coating layer of a paper or board web ( ). The method comprises application of a coating slip to at least one surface of the web ( ) at the coating head ( ) of a coating machine, the measurement of the transverse temperature profile of the web ( ) surface in at least a measurement point ( ) fitted after the coating head ( ), and the determination of the profile of the web's ( ) coating layer on the basis of the temperature profile measured in at least the measuring point ( ) fitted after the coating head ( ), whereupon a change in the temperature of the web's ( ) coating layer or in the difference of the temperature between the coating layer and the base web ( ) is at least almost proportional to the change in the coat weight.