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:
Aug. 29, 1978
Filed:
Dec. 20, 1976
Applicant:
Inventor:
Ludger Lohnherr, Oelde, DE;
Assignee:
Polysius AG, Neubeckum, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 24 ; 241 30 ; 241 80 ; 241110 ;
Abstract
A method of processing abrasive material, the material being comminuted by means of a roller mill, thereafter sifted in an air separator, and the course material which is collected in the air separation again being comminuted in the roller mill. Furthermore, the invention relates to an apparatus for carrying out said method.