Patents by Inventor Marc Sommerfeld

Marc Sommerfeld 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).

  • Valve flap device
    Patent number: 9163565
    Abstract: A valve flap device for an exhaust system of a motor vehicle, having at least one tubular valve housing with a flow cross section running perpendicular to a central axis and being formed by the inner geometry and a shaft which can turn about a valve axis with a valve flap mounted on the shaft, being mounted in the valve housing to close the flow cross section. The valve flap device can be made with low material input and at the same time with low fabrication expense at low costs. For this, the valve housing is made from a tubular blank of sheet metal with a tube diameter that is calibrated to the flow cross section at least partially by mechanical, plastic forming.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: October 20, 2015
    Assignee: TENNECO GMBH
    Inventors: Marcel Womann, Marc Sommerfeld, Rico Weinert, Alexander Schinko, Christoph Schneider
  • Matched rail and stile router bit set
    Patent number: 8491980
    Abstract: A matched rail and stile router bit set is constructed and arranged with cutting edge geometries which create radiused edges for the stile workpiece and at least one corresponding radiused recess in the rail workpiece.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: July 23, 2013
    Inventor: Marc Sommerfeld
  • Valve flap device
    Publication number: 20110297862
    Abstract: A valve flap device for an exhaust system of a motor vehicle, having at least one tubular valve housing with a flow cross section running perpendicular to a central axis and being formed by the inner geometry and a shaft which can turn about a valve axis with a valve flap mounted on the shaft, being mounted in the valve housing to close the flow cross section. The valve flap device can be made with low material input and at the same time with low fabrication expense at low costs. For this, the valve housing is made from a tubular blank of sheet metal with a tube diameter that is calibrated to the flow cross section at least partially by mechanical, plastic forming.
    Type: Application
    Filed: May 18, 2011
    Publication date: December 8, 2011
    Applicant: HEINRICH GILLET GMBH - TENNECO
    Inventors: Marcel Womann, Marc Sommerfeld, Rico Weinert, Alexander Schinko, Christoph Schneider