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:
Feb. 17, 2009
Filed:
Aug. 15, 2006
Applicant:
Dieter Weidhaus, Burghausen, DE;
Inventor:
Dieter Weidhaus, Burghausen, DE;
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 19/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for producing silicon seed particles having a size of from 50 μm to 1000 μm from silicon granules having a size of from 300 μm to 5000 μm, comprising a vertically disposed jet chamber with a low cross sectional area and a jet nozzle at the base of the jet chamber through which a milling gas stream is introduced into the chamber; a larger cross section countercurrent gravity separator adjoining the jet chamber, and an inlet for silicon granules, wherein the jet chamber has a length sufficient to allow the milling gas stream to widen to the cross section of the jet chamber.