Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Reexamination Certificate
2005-04-05
2005-04-05
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
C162S259000, C162S343000, C162S336000
Reexamination Certificate
active
06875312
ABSTRACT:
A method for fluidisation of a pulp flow in the headbox of a paper machine or such. The characteristics of the pulp flow are affected in the headbox's fluidiser (14) in one step only, whereby the height (h1) of the step is at least equal to the average fibre length, and after the fluidiser (14) the biggest permissible step expression in the flow channel in direction z is smaller than the average fibre length.
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Preliminary Amendment and Substitute Specification from U.S. Appl. No.: 10/088,714.
Karema Hannu
Kellomäki Markku
Lepomäki Hannu
Tukiainen Maarit
Halpern Mark
Metso Paper Inc.
Stiennon & Stiennon
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