Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Reexamination Certificate
2007-11-06
2007-11-06
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
C162S351000, C162S374000, C015S236010
Reexamination Certificate
active
10300210
ABSTRACT:
A dewatering member for a paper or board machine has a composite body (13) and a hard surface layer (12). The composite body (13) is manufactured in a pultrusion process. An adhesion layer (11) is formed on desired outer surfaces of the composite body (13) such that reinforcements passed to the adhesion layer (11) have been passed to the pultrusion process through a separate resin bath, to which an adhesion improving agent has been added such that the hard surface layer (12) can be applied directly onto it, and reinforcements forming the inner portion of the composite body (13) have been passed to the pultrusion process through a second resin bath. The composite body (13) is coated with a hard coating layer (12) produced by thermal spraying, and the coating (12) is ground.
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patent: WO 91/13204 (1991-09-01), None
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Search Report issued in Finnish Priority No. 20012261, Nov. 2001.
Search Report issued in EU 02 39 6168.3, Jun. 2002.
English translation of JP-70792, Apr. 1983.
English translation of JP-70793, Apr. 1983.
Kervinen Kirsi
Muilu Liisa
Sorsa Petri
Tarkiainen Veli-Pekka
Exel Oyj
Halpern Mark
Metso Paper Inc.
Stiennon & Stiennon
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