Paper making and fiber liberation – Apparatus – Apparatus repair – cleaning or conditioning
Reexamination Certificate
2003-12-15
2008-10-14
Halpern, Mark (Department: 1791)
Paper making and fiber liberation
Apparatus
Apparatus repair, cleaning or conditioning
C034S117000, C034S122000, C034S123000, C034S114000, C162S199000
Reexamination Certificate
active
07435315
ABSTRACT:
The object of the invention is an arrangement for stabilizing a paper web (3) in a paper machine, which arrangement comprises at least three cylinders (4, 5, 6) which have been arranged so that a pocket space is formed between them, a blow box (7) arranged in the pocket space, which blow box has a blow nozzle (12), in which a nozzle slot (19) has been arranged, a separate wall (10), substantially in the direction of the blow box (7), which wall has a first edge and a second edge that are substantially parallel, which has been attached from its first edge to the blow box (7), whose height in the travelling direction of the paper web (3) is 25-300% of the height of the blow box (7) in the travelling direction of the paper web (3), in the second edge of which wall there has been arranged a boundary layer air doctor (15), which extends substantially unto the surface of the cylinder (4, 5, 6), and which wall (10) has been attached to the blow box (7) so that the blow box (7) and the wall (10) form a space in the area between the opening nip (8) and the closing nip (9) following it, into which space an underpressure can be arranged in order to support the paper web (3) towards the fabric (2) in the area between said nips (8, 9).
REFERENCES:
patent: 4190964 (1980-03-01), Schiel
patent: 4477983 (1984-10-01), Andersson et al.
patent: 4553340 (1985-11-01), Petersson
patent: 4669198 (1987-06-01), Wedel
patent: 4932138 (1990-06-01), Liedes et al.
patent: 6115938 (2000-09-01), Oechsle
patent: 6189232 (2001-02-01), Milosavljevic et al.
patent: 6247247 (2001-06-01), Yömaa et al.
patent: 2002/0124429 (2002-09-01), Straley et al.
patent: 1336535 (1998-06-01), None
patent: 780833 (1979-06-01), None
patent: 76610 (1988-07-01), None
patent: 80103 (1989-01-01), None
patent: 102400 (1998-11-01), None
patent: 110442 (2003-02-01), None
patent: 444589 (1986-04-01), None
Search Report dated Sep. 5, 2003 from Finnish Patent Office for corresponding Finnish application No. FI 20022231.
Cohen Pontani Lieberman & Pavane LLP
Halpern Mark
Metso Paper Inc.
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