Patents by Inventor Alexander Grössle

Alexander Grössle 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).

  • Piston for an internal combustion engine and method for its production
    Patent number: 7971566
    Abstract: The present invention relates to a piston (10) for an internal combustion engine, having a combustion depression (13) which is provided in the piston head (11) and has an encircling undercut (14), wherein the encircling depression edge (15) which connects the undercut (14) to the piston head (11) has alternately rounded (16, 17) and sharp-edged depression edge regions (18, 19). It is provided according to the invention that the encircling depression edge (15) merges along its entire periphery into a planar encircling face (20) which in turn merges along its entire periphery with a sharp edge into the undercut (14).
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: July 5, 2011
    Assignee: MAHLE International GmbH
    Inventors: Alexander Grössle, Thomas Hoch
  • Piston for an Internal Combustion Engine and Method for Its Production
    Publication number: 20100162986
    Abstract: The present invention relates to a piston (10) for an internal combustion engine, having a combustion depression (13) which is provided in the piston head (11) and has an encircling undercut (14), wherein the encircling depression edge (15) which connects the undercut (14) to the piston head (11) has alternately rounded (16, 17) and sharp-edged depression edge regions (18, 19). It is provided according to the invention that the encircling depression edge (15) merges along its entire periphery into a planar encircling face (20) which in turn merges along its entire periphery with a sharp edge into the undercut (14).
    Type: Application
    Filed: December 14, 2006
    Publication date: July 1, 2010
    Inventors: Alexander Grössle, Thomas Hoch
  • Piston for an internal combustion engine
    Patent number: 7533649
    Abstract: A piston for an internal combustion engine, comprising a piston head having a piston crown, a circumferential top land, and a circumferential ring belt having ring grooves. At least one ring groove is provided with a ring insert. A circumferential depression is provided in the top land, above the ring belt.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: May 19, 2009
    Assignee: MAHLE International GmbH
    Inventors: Peter Kemnitz, Alexander Grössle