Method and apparatus for coating a paper web

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United States of America Patent

PATENT NO 5018478
SERIAL NO

07269531

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Method and apparatus for coating a paper or paper board web including preventing deposition and drying of the coating paste on the edge zones of the coating chamber by continuously causing a flow of coating paste from the coating chamber past the edge seal (2). Each edge seal is disposed in the space between the front and the rear walls (3,4) of the coating apparatus, and the upper part (11) of each edge seal corresponds to the form of a wedge between the wiping member (9) of the coating apparatus and the web (12) to be coated. Coating paste flows through gaps (13, 14) between the edge seals and the wiping member and between the edge seals and the web, which gaps are for example, between about 2-5 mm wide.

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Patent Owner(s)

Patent OwnerAddress
A AHLSTROM CORPORATION A CORP OF FINLANDBOX 18 SF-48601 KARHULA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meinander, Paul O Grankulla, FI 6 33

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