Patents by Inventor Harald Siegert

Harald Siegert 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).

  • Cold starting assistance for diesel engines
    Patent number: 5862786
    Abstract: Method and apparatus for cold starting assistance for diesel engines including use of a sheathed-element glow plug in the combustion chamber and a heater plug in the air intake, which plugs are operated by a control device (15) responsive to engine operating parameters, particularly engine temperature.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: January 26, 1999
    Assignee: Deutz AG
    Inventors: Heinz-Wolfgang Fuchs, Reinhard Rechberg, Harald Siegert