Patents by Inventor Gerhard Nerschbach

Gerhard Nerschbach 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).

  • Tape cassette containing echo-erasing means
    Patent number: 4656548
    Abstract: A tape cassette comprising at least one print-through echo-erasing device in the form of at least one appropriately shaped magnetic member made of permanent magnet material which is conveniently arranged on a tape guide element or near the apertures in the front wall of the cassette housing for the admission of scanning means. Such echo-erasing device can be used with advantage in any kind of magnetic tape cassette or cassette containing a recording medium having at least one magnetic track.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: April 7, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Pfefferkorn, Gerhard Nerschbach, Eberhard Koester, Norbert Kreimes, Bozidar Pavelka