Patents by Inventor Van Der Giessen

Van Der Giessen 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).

  • Arrangement for centering an information disc
    Patent number: 4358803
    Abstract: To permit the storage of large amounts of information on interchangeable rigid magnetic discs, the inner wall of a turntable recess and the inner wall of the disc central opening are accurately machined with tight dimensional tolerances, and a centering element cooperates with at least one of the inner walls via elastically deformable compensation means.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: November 9, 1982
    Assignee: U.S. Philips Corporation
    Inventor: Van Der Giessen