Patents by Inventor Helmut Rodenhaeuser

Helmut Rodenhaeuser 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).

  • Control box
    Publication number: 20050011269
    Abstract: A control box for use, for example, to open and close a bypass valve (18, 19) of a turbocharger, in which the closing movement occurs with higher force than the opening movement, wherein the closing movement occurs in the direction of a spring force and the opening movement in the direction against said spring force. The control box comprises two pressure chambers (4, 6) and both pressure chambers may be set to either atmospheric pressure or negative pressure.
    Type: Application
    Filed: June 17, 2004
    Publication date: January 20, 2005
    Inventors: Helmut Rodenhaeuser, Juergen Tschirschke