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:
Jul. 18, 2023
Filed:
Sep. 15, 2020
Applicant:
Valmet Ab, Sundsvall, SE;
Inventors:
Assignee:
VALMET AB, Sundsvall, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 7/12 (2006.01); D21D 1/30 (2006.01); B02C 7/06 (2006.01); B02C 7/18 (2006.01);
U.S. Cl.
CPC ...
B02C 7/12 (2013.01); B02C 7/06 (2013.01); B02C 7/188 (2013.01); D21D 1/30 (2013.01); D21D 1/303 (2013.01); D21D 1/306 (2013.01);
Abstract
A refiner for refining of lignocellulosic material includes a rotor disc and a stator disc. The rotor disc includes a first refining segment that includes a plurality of first protruding structures for grinding of the lignocellulosic material. Each of the first protruding structures is defined by a first height. The stator disc is arranged opposite the rotor disc and includes a second refining segment that includes a plurality of second protruding structures for grinding of the lignocellulosic material. Each of the second protruding structures being defined by a second height. The first height is at least three times larger than the second height.