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:
Jan. 07, 2025
Filed:
Mar. 12, 2021
Applicant:
Andritz Ag, Graz, AT;
Inventors:
Thomas Reisinger, Graz, AT;
Peter Ortner, Graz, AT;
Daniel Hogue, St-Lin-Laurentide, CA;
Christian Harpin, Boisbriand, CA;
Assignee:
ANDRITZ AG, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 7/14 (2006.01); D21D 1/30 (2006.01);
U.S. Cl.
CPC ...
D21D 1/303 (2013.01);
Abstract
A refiner for refining pulps, includes a shaft, a rotor disc attached firmly to the shaft and a shaft bearing, the rotor disc being disposed between two stator discs and forming a refining chamber between the rotor disc and the stator discs. The shaft is movable in an axial direction and the shaft bearing is connected hydraulically to the refining chamber, ensuring low wear on the rotor discs and stator discs and, in particular, on the refiner plates on these discs, also in continuous operation.