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:
Feb. 20, 2024

Filed:

Feb. 20, 2019
Applicant:

Valmet Ab, Sundsvall, SE;

Inventor:

Thommy Lindblom, Hägersten, SE;

Assignee:

VALMET AB, Sundsvall, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21D 1/30 (2006.01); B02C 7/12 (2006.01);
U.S. Cl.
CPC ...
D21D 1/306 (2013.01); B02C 7/12 (2013.01); D21D 1/30 (2013.01); D21D 1/303 (2013.01);
Abstract

A refiner segment for a refiner of lignocellulosic material includes a first bar, a second bar, a first dam, and a second dam. The first bar has a width and includes a first bar weakening section. The first bar weakening section includes two planar faces defining a wedge-shaped recess with a tip and a base. The two planar faces meet at the tip. The tip is separated from the base by a depth. The depth is greater than or equal to half of the width and less than or equal to the width. The first dam extends between the first bar and the second bar. The second dam extends between the first bar and the second bar. The first bar, the second bar, the first dam, and the second dam define a first essentially box-shaped region. The first bar weakening section is positioned within the first essentially box-shaped region.


Find Patent Forward Citations

Loading…