Patents by Inventor Willi Dotsch

Willi Dotsch 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).

  • Patent number: 5142892
    Abstract: An adjusting arrangement for the roll gap or rolling force in rolling mill stands. The arrangement includes two hydraulic adjusting cylinders which act from both sides on a work roll to be adjusted. The adjusting cylinders each have two or more piston surfaces to which pressure medium can be applied independently of each other, either individually, in any combination, or to all piston surfaces. This makes it possible to adjust the rolling force within the respective rolling force range in such a way that percentage variations of the rolling force are minimized and, consequently, different roughnesses and differences in wall thicknesses can be almost completely eliminated.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 1, 1992
    Assignee: BWG Bergwerk-und-Walzwerk-Maschinenbau GmbH
    Inventors: Oskar Noe, Willi Dotsch
  • Patent number: 4886199
    Abstract: A strip treatment apparatus, for example for metal strips includes a strip drive and a strip store disposed both at the apparatus entry and apparatus exit with a processing section being disposed between the two stores and a strip drive being disposed after the processing section. The two loop trolleys or roll tables of the strip stores are mechanically interconnected to form a movable unit. The strip drive disposed after the processing section and/or the strip drives at the entry and exit of the apparatus are operative as drives for moving the interconnected loop trolleys or interconnected roll tables, so that independent drives for these movable units can be omitted.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: December 12, 1989
    Assignee: Bergwerk-und Walzwerk-Maschinenbau GmbH
    Inventors: Oskar Noe, Rolf Noe, Andreas Noe, Willi Dotsch, Herbert Lux