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:
Mar. 17, 2020
Filed:
Aug. 07, 2014
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Andreas Schneider, Muehldorf, DE;
Peter Gruebl, Eichendorf, DE;
Rainer Hauswirth, Kirchdorf, DE;
Reiner Pech, Neuoetting, DE;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B 1/46 (2006.01); B07B 1/00 (2006.01); B07B 1/28 (2006.01); B07B 13/18 (2006.01);
U.S. Cl.
CPC ...
B07B 1/4609 (2013.01); B07B 1/00 (2013.01); B07B 1/28 (2013.01); B07B 1/46 (2013.01); B07B 13/18 (2013.01); B07B 2201/04 (2013.01);
Abstract
A method for mechanically classifying polycrystalline silicon chunks or granules with a vibratory screening machine, involves setting silicon chunks or granules present on one or more screens each comprising a screen lining in vibration such that the silicon chunks or silicon granules perform a movement which causes the silicon chunks or silicon granules to be separated into various size classes, wherein a screening index is greater than or equal to 0.6 and less than or equal to 9.0.