Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Reexamination Certificate
2005-02-01
2005-02-01
Chin, Peter (Department: 1731)
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
C162S193000, C162S207000, C162S358400, C162S359100, C162S202000, C162S255000, C162S358100
Reexamination Certificate
active
06849159
ABSTRACT:
The invention concerns an equipment and a method in the transfer of a paper/board web in a paper or board machine. In an embodiment of the invention, the dryer section comprises at least one group of drying cylinders in which, instead of a conventional wire draw, a transfer belt (H100) is employed, to which the web (W) is affixed by effect of adhesion and which transfer belt is passed over drying cylinders (K1, K2, . . . ) and reversing rolls (E1, E2, . . . ) and further in said group (RI) of drying cylinders in the dryer section. The invention also concerns a method in the transfer of the web (W) in the dryer section (K) of a paper/board machine. In an embodiment of the invention, the web (W) is passed, while meandering in loop shape and while adhering to the face of the transfer belt (H100), from a drying cylinder (K1) in the group (RI) of drying cylinders in the dryer section (K) onto a reversing roll (E1) and further from the reversing roll onto the next drying cylinder (K2) and further in the group (RI) of drying cylinders.
REFERENCES:
patent: 4000035 (1976-12-01), Schiel et al.
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patent: 5169501 (1992-12-01), Meinecke
patent: 5298124 (1994-03-01), Eklund et al.
patent: 5397438 (1995-03-01), Nyberg et al.
patent: 5611892 (1997-03-01), Karvinen et al.
patent: 84088 (1991-06-01), None
patent: 9714846 (1997-04-01), None
Copy of PCT International Search Report, Sep. 18, 1998.
Ilvespää Heikki
Juppi Kari
Komulainen Antti
Vestola Juhani
Chin Peter
Halpern Mark
Metso Paper Inc.
Steinberg & Raskin, P.C.
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