Patents by Inventor Karl Dittert

Karl Dittert 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).

  • Electrically powered knife
    Patent number: 4164813
    Abstract: An electrically powered knife has a handle with projecting removable knifeblades driven from a drive unit containing an electric motor, the drive unit being readily disconnectable from the handle so that this can be cleaned without risk of damage to the motor. A switch controlling motor operation is located in the drive unit but is operated from the handle by a mechanical link or a Bowden cable extending from a push button to an end surface of the handle to engage a switch member at an adjacent surface of the drive unit.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: August 21, 1979
    Assignee: Ritterwerk GmbH
    Inventors: Karl Dittert, Hans W. Hartkorn
  • Radiation instrument
    Patent number: D363349
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: October 17, 1995
    Assignee: Maxs AG
    Inventor: Karl Dittert