Patents by Inventor Darrel Meffert

Darrel Meffert 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).

  • Double bowl piston
    Publication number: 20060090726
    Abstract: A piston for an internal combustion engine is disclosed. The piston has a piston crown with a face having an interior annular edge. The piston also has first piston bowl recessed within the face of the piston crown. The first piston bowl has a bottom surface and an outer wall. A line extending from the interior annular edge of the face and tangent with the outer wall forms an interior angle greater than 90 degrees with the face of the piston. The piston also has a second piston bowl that is centrally located and has an upper edge located below a face of the piston crown.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 4, 2006
    Inventors: Darrel Meffert, Roger Urven, Cory Brown, Mark Runge