Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Lawrence K. Nordell0
Date of Patent
March 3, 2009
0Patent Application Number
117586280
Date Filed
June 5, 2007
0Patent Primary Examiner
Patent abstract
A grinding machine having plurality of lift elements positioned within the rotating drum. The lift elements are provided with a central ridge contact surface portion with slanted side surfaces extending from the ridge contact portion in a downward and outward configuration. Adjacent pairs of side surfaces form valleys with the downwardly converging side surfaces. In the grinding process, this enhances the effectiveness of the grinding mill.
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