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.:
Date of Patent:
Feb. 06, 2024
Filed:
Aug. 27, 2020
Applicant:
Valmet Technologies Oy, Espoo, FI;
Inventors:
Juha-Pekka Huhtanen, Espoo, FI;
Marko Loijas, Espoo, FI;
Assignee:
Valmet Technologies Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21D 1/22 (2006.01);
U.S. Cl.
CPC ...
D21D 1/22 (2013.01);
Abstract
A blade element pair () for a refiner () is intended for refining fibrous material. Each blade element (′) of the blade element pair () has a refining surface () with blade bars () and blade grooves () extending along the blade element (′), and openings () extending through the blade element (′). The openings () in one of the blade elements (′) is at different axial (A) or radial (R) positions from the openings () in the other blade element (′) when the blade elements (′) of the blade element pair () are set substantially opposite to each other.