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:
May. 14, 2019
Filed:
May. 05, 2016
Applicant:
Rec Silicon Inc, Moses Lake, WA (US);
Inventor:
Robert J. Geertsen, Eltopia, WA (US);
Assignee:
REC Silicon Inc, Moses Lake, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B 1/22 (2006.01); B07B 4/08 (2006.01); C01B 33/02 (2006.01); B07B 4/06 (2006.01); B07B 7/02 (2006.01);
U.S. Cl.
CPC ...
C01B 33/02 (2013.01); B07B 1/22 (2013.01); B07B 4/06 (2013.01); B07B 4/08 (2013.01); B07B 7/02 (2013.01); C01P 2004/32 (2013.01); C01P 2004/60 (2013.01); C01P 2006/80 (2013.01);
Abstract
Methods and apparatus for separating polysilicon powder from a mixture of granular polysilicon and polysilicon powder are disclosed. The method includes tumbling the polysilicon material in a tumbling device while flowing humidified sweep gas through the tumbling device. Also disclosed are compositions including granulate polysilicon or polycrystalline silicon, in some examples, including a coating layer consisting essentially of water.