Refiner blade and segment, as well as a method of forming them and a method of modifying blade grooves

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United States of America Patent

PATENT NO 7934672
APP PUB NO 20080302897A1
SERIAL NO

12096320

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Abstract

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A refiner blade comprising a blade surface for defibrating a lignocellulose-containing material, the blade surface comprising blade bars and blade grooves provided therebetween. At least one blade groove provided in the blade surface is formed by removing material from the blade surface by water cutting.

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Patent Owner(s)

Patent OwnerAddress
VALMET TECHNOLOGIES INCKEILASATAMA 5 ESPOO FI-02150

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Könönen, Timo Nokia, FI 2 0
Sjöström, Håkan Tampere, FI 7 6

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