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:
May. 16, 2017
Filed:
Jan. 07, 2015
Tapio Pitkäniemi, Haarajoki, FI;
Heikki Vatanen, Järvenpää, FI;
Tapio Pitkäniemi, Haarajoki, FI;
Heikki Vatanen, Järvenpää, FI;
VALMET TECHNOLOGIES, INC., Espoo, FI;
Abstract
A coating device and method for coating a fiber web for applying coating color onto a fiber web has a nozzle unit with at least one nozzle part (), a feeding chamber () and at least one equalizing chamber ('), a feed hole () between the feeding chamber () and the first equalizing chamber (), and a nozzle slot (′) from which the coating color is discharged through the nozzle slot (′) outlet opening (). A mixing chamber () between the outlet area of the feed hole () and the equalizing chamber () functions as a means for distributing uniformly the inhomogeneous coating color flow entering the equalizing chamber () from the feed hole (). The coating from the feed hole is directed to a wall () of mixing chambers () which distribute uniformly the coating entering the equalizing chamber ().