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:
Sep. 11, 2012
Filed:
May. 27, 2008
Applicants:
Markus Berger, Ennigerloh, DE;
Pedro Guerrero Palma, Lippetal, DE;
Inventors:
Markus Berger, Ennigerloh, DE;
Pedro Guerrero Palma, Lippetal, 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 roll mill having a grinding plate rotatable about an axis of rotation, at least one grinding roller in rolling engagement with the grinding plate, and a main drive for driving the grinding plate. An auxiliary drive for driving the grinding plate, and a regulating device are also provided, the regulating device including at least one damping regulator which regulates the auxiliary drive in dependence on torque variations of the main drive and/or variations in the speed of rotation of the grinding plate.