Patents by Inventor Roland Züllig

Roland Züllig 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).

  • Hydropneumatic spring and damper system
    Patent number: 8196721
    Abstract: The hydro-pneumatic spring damping device in particular for wheeled vehicles or tracked vehicles includes at least one hydro-pneumatic element (1) having a gas chamber (1h) wherein the hydro-pneumatic element (1) includes a heat exchanger (1i) which is arranged such that it influences the temperature of the gas in the gas chamber (1h) and wherein a heat exchanger (1i) can be connected to a cooling device (21) via a coolant circuit (21).
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: June 12, 2012
    Assignee: Stromsholmen AB
    Inventors: Stefan Gabriel, Michael Kleiber, Volker Triebs, Roland Züllig