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. 11, 2011
Filed:
Feb. 28, 2006
Applicants:
Pedro Guerrero Palma, Lippetal, DE;
Karl Menzel, Ennigerloh, DE;
Inventors:
Pedro Guerrero Palma, Lippetal, DE;
Karl Menzel, Ennigerloh, DE;
Assignee:
Polysius AG, Beckum, DE;
Primary Examiner:
Int. Cl.
CPC ...
B02C 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a vertical mill comprising a grinding track () and at least one grinding roller (). The grinding track () is provided with a central zone (Ia) made of a harder material and two laterally adjacent edge zones (Ib, Ic) made of a softer material. The width (a) of the central zone (Ia) is smaller than or equal to the width of the grinding roller ().