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:
Jan. 21, 2003
Filed:
Mar. 02, 2001
Applicant:
Inventors:
Siegfried Strasser, Much, DE;
Albert Süssegger, Eitorf, DE;
Assignee:
KHD Humboldt Wedag, AG, Cologne, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 2/314 ;
U.S. Cl.
CPC ...
B02C 2/314 ;
Abstract
Two-stage classification of a granular material, in particular a cement grinding feed, is accomplished in two classifiers connected in series in such a way that the separative behavior or the separative action and thus the particle-size distribution of the undersized or finished material coming from the second classifier can be modified with simple resources. Part or all of the oversized material of the second classifier is recycled to the second classifier.