Patents by Inventor Rudolf Wittner

Rudolf Wittner 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).

  • Cleaning devices for records and pickup styli
    Patent number: 4023677
    Abstract: A cleaning device for records and pickup style is disclosed, including a cleaning element supporting a stylus brush and having on its lower side a cleaning cover or layer for wiping over the record. A trough-like container is provided into which the cleaning element can be inserted so that its cleaning surface is enclosed. The stylus brush is detachably supported on the cleaning element by means of a fastening device.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: May 17, 1977
    Inventors: Rudolf Wittner, Fritz Harle