The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7648613 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 19, 2010

Filed:

Jun. 03, 2005
Applicant:

Juha Leimu, Turku, FI;

Inventor:

Juha Leimu, Turku, FI;

Assignee:

Metso Paper, Inc., Helsinki, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention comprises a method and an arrangement in a paper machine or the like close to a moving web () usually supported against a wire (), and a paper machine including such an arrangement, and a sealing device having several such arrangements (). According to the invention, a movable sealing () is arranged in the drying section of a paper machine, between two regions () with different pressures. Certain air amounts (V, V) are supplied to and/or discharged from each side of the sealing () in order to create certain pressures in said regions. Air can move between said regions only through certain paths. In normal operating situations the seal () according to the invention is automatically adjusted to the desired position in relation to the web.


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