Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Reexamination Certificate
2011-08-09
2011-08-09
Halpern, Mark (Department: 1741)
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
C162S375000
Reexamination Certificate
active
07993491
ABSTRACT:
The object of the invention is an end part (1) of an air dryer, the air dryer being applicable for drying a pulp web, such as a cellulose web or the like. The end part comprises a fan tower (11), and a roll tower in which a number of turn roll (27, 37) are arranged mainly on top of each other in order to turn the travelling direction of the pulp web in the air dryer, the longitudinal axis of the roll. towers being parallel, and a fan tower arranged at a distance from the roll tower, adjacent to it, comprising a number of fans arranged on top of each other, a single fan being arranged to blow heated air as drying air to a dryer group. The end part further comprises one or more centrifugal fans (14) arranged in the direct vicinity or the roll tower, and a number of end drying means (13) arranged between the roll tower and the dryer group of—the fan of the fan tower, to which end drying means drying air is supplied with said centrifugal fan or fans. A further object of the invention is also a method in the end part of an air dryer, an air dryer and use of a centrifugal fan.
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English translation of claim of 1 of Patent No. SU 958812.
Decision on Grant issued in corresponding Russian Patent Application No. 2009122468.
Heikkilä Pertti
Laitonen Markku
Lindholm Johan
Solin Richard
Cohen Pontani Lieberman & Pavane LLP
Halpern Mark
Metso Paper Inc.
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