Patents by Inventor Ulrich Hilpert

Ulrich Hilpert 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).

  • Cylinder head exhaust gas passage
    Patent number: 6390051
    Abstract: In a cylinder head of an internal combustion engine with a cylinder head casting having at least one exhaust passage formed from thin-walled material, which together with the cylinder head casting forms an annular space filled with molding sand, the exhaust passage being supported in the cylinder head casting by sheet-like mounting flanges, a venting duct is provided which extends from the annular space to the outside for discharging gases released from the molding sand in the annular space during casting of the cylinder head.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: May 21, 2002
    Assignee: DaimlerChrysler AG
    Inventors: Ulrich Hilpert, Manfred Meyer
  • Cylinder head exhaust gas passage
    Publication number: 20010029920
    Abstract: In a cylinder head of an internal combustion engine with a cylinder head casting having at least one exhaust passage formed from thin-walled material, which together with the cylinder head casting forms an annular space filled with molding sand, the exhaust passage being supported in the cylinder head casting by sheet-like mounting flanges, a venting duct is provided which extends from the annular space to the outside for discharging gases released from the molding sand in the annular space during casting of the cylinder head.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 18, 2001
    Inventors: Ulrich Hilpert, Manfred Meyer