Patents by Inventor Manfred Zoller

Manfred Zoller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Internal lining for ball mills
    Patent number: 4936519
    Abstract: An internal lining for cylindrical ball mills has riffles approximately extending in circumferential direction and webs located between the riffles and further has elevations and/or depressions arranged transversely to the circumferential direction. This allows fine grinding between the balls and the riffles. The balls are lifted to a higher level by the elevations and/or the depressions and the balls are better agitated within the heap of balls effecting coarse grinding.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: June 26, 1990
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Erich Pichlmaier, Manfred Zoller