Patents by Inventor Andreas Wortmann

Andreas Wortmann 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).

  • Method and device for determination of the wear resistance of a surface
    Patent number: 7013705
    Abstract: A method and apparatus for determining the wear resistance of the surface of a sample object includes an abrasive grinding belt, run between the sample object and a counter-body, with the grinding belt being pressed against the sample object with a predetermined force by the counter-body. The position of the counter-body is determined at, at least, a first position and a second position, each occurring at two different points in time. The wear resistance of the surface of the sample object is determined from the difference in determined positions.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: March 21, 2006
    Assignee: Innowep GmbH
    Inventors: Andreas Wortmann, Holger Lüthje
  • Method and device for determination of the wear resistance of a surface
    Publication number: 20050081599
    Abstract: A method and apparatus for determining the wear resistance of the surface of a sample object includes an abrasive grinding belt, run between the sample object and a counter-body, with the grinding belt being pressed against the sample object with a predetermined force by the counter-body. The position of the counter-body is determined at, at least, a first position and a second position, each occurring at two different points in time. The wear resistance of the surface of the sample object is determined from the difference in determined positions.
    Type: Application
    Filed: February 7, 2003
    Publication date: April 21, 2005
    Inventors: Andreas Wortmann, Holger Luthje