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:
Mar. 24, 2020

Filed:

Feb. 27, 2015
Applicant:

Valmet Ab, Sundsvall, SE;

Inventor:

Thommy Lindblom, Hägersten, SE;

Assignee:

Valmet AB, , SE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21D 1/30 (2006.01); B02C 7/02 (2006.01); B02C 7/12 (2006.01);
U.S. Cl.
CPC ...
D21D 1/306 (2013.01); B02C 7/02 (2013.01); B02C 7/12 (2013.01); D21D 1/303 (2013.01);
Abstract

A refiner segment for a refiner for defibrating has a refining surface comprising a group of first bars and second bars, each having a first end directed in the direction of an inlet zone and a second end directed in the direction of a refining zone, where the second ends of the first bars are interlaced with the first ends of the second bars to form first grooves between the first bars, and second grooves between the second bars. The second ends of the first bars have a guiding surface decreasing from an upper surface of the first bars down towards the bottom of the second grooves, and the first ends of the second bars have a guiding surface increasing from the bottom of the first grooves up to a top of the second bars, such that the guiding surfaces form an equalization groove.


Find Patent Forward Citations

Loading…