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:
Nov. 10, 1987
Filed:
Nov. 15, 1985
Gunter Dibowski, Essen, DE;
Helmut Grommes, Duisburg, DE;
Deutsche Babcock Werke Aktiengesellschaft, Oberhausen, DE;
Abstract
A ball mill with a housing (1) that accommodates three stationary rollers (2) rolling along a rotating track (3). The rollers are held against the track by means of an upper and lower frame (9 & 10). The frames have springs (11) between them. Rods (8), each connected to a hydraulic cylinder (24) and extending out of the housing, engage the upper frame (9). To allow the rollers to be lifted off the track, a piston associated with the hydraulic cylinder can be charged at either end, the rollers are attached to the lower frame with hinges 25 and an angle-setting device, and the frames are connected by tension structures that limit the expansion of the springs.