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.

Date of Patent:
Aug. 03, 2004

Filed:

May. 16, 2003
Applicant:
Inventors:

Bo Rökman, Kangasala, FI;

Kari Hyvönen, Tampere, FI;

Tauno Virtanen, Tampere, FI;

Assignee:

Tamfelt Oyj Abp, Tampere, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F 3/00 ; D21F 7/08 ;
U.S. Cl.
CPC ...
D21F 3/00 ; D21F 7/08 ;
Abstract

A method of making a press felt, and a press felt. The press felt comprises a continuous base fabric in the lateral direction, and at least one batt fiber layer. The closed-loop base fabric is made of longitudinal and transverse yarns. The properties of the press felt, such as permeance, are arranged to be different in edge portions of the press felt from the midportion of the felt.


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