Coating device for applying coating color onto a fiber web and method for coating of a fiber web

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United States of America Patent

PATENT NO 9649658
SERIAL NO

14591727

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Importance

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Abstract

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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 (10), a feeding chamber (11) and at least one equalizing chamber (13; 13′), a feed hole (12) between the feeding chamber (11) and the first equalizing chamber (13), and a nozzle slot (14′) from which the coating color is discharged through the nozzle slot (14′) outlet opening (15). A mixing chamber (20) between the outlet area of the feed hole (12) and the equalizing chamber (13) functions as a means for distributing uniformly the inhomogeneous coating color flow entering the equalizing chamber (13) from the feed hole (12). The coating from the feed hole is directed to a wall (22) of mixing chambers (20) which distribute uniformly the coating entering the equalizing chamber (13).

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Patent Owner(s)

Patent OwnerAddress
VALMET TECHNOLOGIES INCKEILASATAMA 5 ESPOO FI-02150

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pitkäniemi, Tapio Haarajoki, FI 5 8
Vatanen, Heikki Järvenpää, FI 7 5

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