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:
Apr. 13, 2010
Filed:
Aug. 30, 2004
Heikki Vatanen, Järvenpää, FI;
Tapio Pitkäniemi, Järvenpää, FI;
Heikki Vatanen, Järvenpää, FI;
Tapio Pitkäniemi, Järvenpää, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A coating apparatus, has a nozzle unit () with at least one feeding chamber () extending in the longitudinal direction (W) of the coating apparatus. Coating color is conveyed into the chamber by feeding means (), and a nozzle slot () in flow communication with the said feeding chamber, the slot also extending in the longitudinal direction (W) of the coating apparatus. The flow communication between the at least one feeding chamber () and the nozzle slot () is formed by feed holes () made in one wall of the feeding chamber, through which the coating color can be conveyed to the nozzle slot. The nozzle unit has means () by which the effective area of the feed holes () can be adjusted in order to accomplish transverse profiling of the amount of coating color.