Shoe roll

Details Shoe roll Shoe roll

2007-02-06

2007-02-06

Halpern, Mark (Department: 1731)

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

C162S272000, C162S361000, C162S358400, C162S205000

Reexamination Certificate

active

10472291

ABSTRACT:
For profiling a fiber web (W) a shoe roll (10) defines a roll nip (4) with an opposite counter-roll (3). The shoe roll (10) has a static roll frame (5), a shoe element (2) located at the roll nip (4) and an endless belt (6) rotating about the shoe element (2) and the static roll frame (5). A lubricating cycle (71) is provided between the endless belt (6) and the shoe element (2) in the roll nip. The surface of the web (W) is profiled in the nip by loading the loading element (8). Before or after the shoe element (2), the shoe roll (10) has a longitudinally extending profiling strip (1) which can be pressurized to be able to perform thickness profiling of the surface of the fiber web (W). The static roll frame (5) and the shoe element (2) the endless belt (6) rotate about the profiling strip.

REFERENCES:
patent: 4568423 (1986-02-01), Laapotti
patent: 4747195 (1988-05-01), Snellman
patent: 5645691 (1997-07-01), Zuefle et al.
patent: 5997695 (1999-12-01), Ilmarinen
patent: 2154317 (1996-01-01), None
patent: 44 25 915 (1996-02-01), None
patent: 0 949 376 (1999-03-01), None
patent: WO 99/45195 (1999-09-01), None
patent: WO 02/079570 (2002-10-01), None
Search Report Issue in FI 20010678.
International Search Report issued in PCT/FI02/00278.
Written Opinion issued in PCT/FI02/00278.
International Preliminary Examination Report issued in PCT/FI02/00278.

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