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:
Jun. 27, 2000
Filed:
Jan. 25, 1999
Applicant:
Inventors:
Michael Keyssner, Duesseldorf, DE;
Thomas Letsch, Duisburg, DE;
Assignee:
Loesche GmbH, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; B02C / ;
U.S. Cl.
CPC ...
241 47 ; 241107 ; 241119 ;
Abstract
To reduce the manufacturing costs of air-swept roller mills and comparable mills, according to the invention a segmented polygonal blade ring is provided, which is manufactured from a plurality of polygon segments, which have planar surfaces and are preferably cut to size from metal sheets. To individual polygon segments can in each case be fixed with a predeterminable inclination one or more guide blades. Preferably an outer polygon segment an an inner polygon segment with at least one guide blade form a polygon segment. Polygon segments can be linked to polygon runs and the latter to polygon blade rings with different diameters.