Patents by Inventor Heinz Schwendemann

Heinz Schwendemann 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 apparatus for testing wheels
    Patent number: 6813938
    Abstract: A control method and apparatus for a biaxial wheel test stand for simulating driving loads. The test stand including a load unit having a servo-hydraulic vertical load cylinder for adjusting a vertical force, a servo-hydraulic horizontal load cylinder for adjusting a horizontal force, and a pivot head which can be adjusted by means of a camber cylinder for adjusting the camber angle of a wheel to be tested. The test stand further including a drive unit with a driven drum having starting rings, to which the wheel to be tested is pressed with the load units, wherein the vertical load cylinder and the horizontal load cylinder control the forces and the camber cylinder controls the camber angle.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: November 9, 2004
    Assignee: Hayes Lemmerz Holding GmbH
    Inventor: Heinz Schwendemann
  • METHOD AND APPARATUS FOR TESTING WHEELS
    Publication number: 20040069078
    Abstract: A control method and apparatus for a biaxial wheel test stand for simulating driving loads. The test stand including a load unit having a servo-hydraulic vertical load cylinder for adjusting a vertical force, a servo-hydraulic horizontal load cylinder for adjusting a horizontal force, and a pivot head which can be adjusted by means of a camber cylinder for adjusting the camber angle of a wheel to be tested. The test stand further including a drive unit with a driven drum having starting rings, to which the wheel to be tested is pressed with the load units, wherein the vertical load cylinder and the horizontal load cylinder control the forces and the camber cylinder controls the camber angle.
    Type: Application
    Filed: October 25, 2001
    Publication date: April 15, 2004
    Inventor: Heinz Schwendemann