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:
Jul. 26, 2022
Filed:
Aug. 18, 2016
Outotec (Finland) Oy, Espoo, FI;
Michael Ströder, Frankfurt am Main, DE;
Roberto Valery, Oberursel, DE;
Roger Becker, Pfungstadt, DE;
Siegfried Schimo, Friedrichsdorf, DE;
Gergö Rimaszeki, Oberursel, DE;
Michal Kotrc, Rietschen, DE;
Vincent Siauw, Frankfurt am Main, DE;
Sebastian Lang, Darmstadt, DE;
OUTOTEC (FINLAND) OY, Espoo, FI;
Abstract
A method for cleaning of a roller screen transporting and screening particles by means of at least three rotating rollers. The rollers are installed in succession at given clearances and arranged transversally in relation to the transport direction of the particles to screen a desired range of particle sizes. At least one roller changes its circumferential velocity and/or its rotational direction over time at defined time intervals for defined time periods such that for this defined time period for at least one pair of neighbored rollers one roller has a higher circumferential velocity than the other and/or both rollers roll in opposite rotational directions.