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:
Jun. 18, 2024
Filed:
Feb. 17, 2020
Valmet Ab, Sundsvall, SE;
Karl Lönngren, Skanör, SE;
Mikael Lundfors, Hässelby, SE;
VALMET AB, Sundsvall, SE;
Abstract
A double disc refiner includes a first refining disc at a feed end and an opposing second refining disc. The first disc has inlet opening(s) and a first distal surface facing a second disc opposing surface. A first disc refining segment has a second distal surface facing the opposing surface that has a first height relative to a plane of the first distal surface in a direction toward the opposing surface. A first disc center plate has elongated protrusions radially extending therefrom and a third distal surface having a second height in the direction of the first height that is at least equal to the first height. Each protrusion has a fourth distal surface continuous with the third distal surface and a third height in the direction of the first height equal to the second height. The third distal surface is separated from the opposing surface by 5-15 mm.