Patents by Inventor Johann Spitzhirn

Johann Spitzhirn 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).

  • Clutch disk
    Patent number: 6622841
    Abstract: A clutch disk includes a hub area and a plurality of friction lining elements, which are supported on the hub area and arranged in sequence in the circumferential direction relative to a clutch disk rotational axis (A). These elements provide at least part of an associated friction surface area, where the friction lining elements are intended to make frictional contact with an associated opposing friction surface of a flywheel, a pressure plate, or the like. At least one friction lining element is supported so that the pressure exerted by its friction surface area against an opposing friction surface can change in response to a change in the sliding frictional interaction between its friction surface area and an opposing friction surface area which is or can be associated with it.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: September 23, 2003
    Assignee: Mannesmann Sachs AG
    Inventors: Matthias Diemer, Andreas Orlamünder, Andreas Dau, Peter Wiggen, Johann Spitzhirn, Klaus Seemann
  • Clutch disk
    Publication number: 20020050434
    Abstract: A clutch disk includes a hub area and a plurality of friction lining elements, which are supported on the hub area and arranged in sequence in the circumferential direction relative to a clutch disk rotational axis (A). These elements provide at least part of an associated friction surface area, where the friction lining elements are intended to make frictional contact with an associated opposing friction surface of a flywheel, a pressure plate, or the like. At least one friction lining element is supported so that the pressure exerted by its friction surface area against an opposing friction surface can change in response to a change in the sliding frictional interaction between its friction surface area and an opposing friction surface area which is or can be associated with it.
    Type: Application
    Filed: August 7, 2001
    Publication date: May 2, 2002
    Applicant: Mannesmann Sachs AG
    Inventors: Matthias Diemer, Andreas Orlamunder, Andreas Dau, Peter Wiggen, Johann Spitzhirn, Klaus Seemann