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:

Oct. 06, 2020
Applicant:

International Paper Company, Memphis, TN (US);

Inventor:

Dwight Edward Anderson, Cincinnati, OH (US);

Assignee:

INTERNATIONAL PAPER COMPANY, Memphis, TN (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21D 1/00 (2006.01); D21D 1/30 (2006.01);
U.S. Cl.
CPC ...
D21D 1/303 (2013.01); D21D 1/008 (2013.01); D21D 1/306 (2013.01);
Abstract

A refining member for a pulp refiner comprising a refining body with a refining surface comprising refiner bars separated by refiner grooves and teeth. Each of the refiner bars extend from a radially inward position on the refining surface to a first radially outward position on the refining surface, and the teeth extend to a second radially outward position on the refining surface. The second radially outward position is nearer to an outermost part of the refining body than the first radially outward position. The refiner bars are adapted to refine wood fibers, and the teeth are adapted to break up fiber bundles.


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