Patents by Inventor James A. Holcomb

James A. Holcomb 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).

  • Internal combustion engine
    Patent number: 4947807
    Abstract: An internal combustion engine comprising a crankcase adapted to rotatably support a crankshaft having an axis, the crankcase defining a plurality of crankcase chambers and including a generally flat manifold mounting surface including therein a first series of inlet openings aligned in the direction of the crankshaft axis, and a second series of inlet openings aligned in the direction of the crankshaft axis, the first and second series being laterally offset with respect to the direction of the crankshaft axis, and each of the inlet openings of the first and second series being respectively adapted to feed air to one of the crankcase chambers and having a minor dimension parallel to the crankshaft axis, a major dimension transverse to the crankshaft axis, and a portion overlapping the inlet openings of the other of the first and second series.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: August 14, 1990
    Assignee: Outboard Marine Corporation
    Inventors: John D. Flaig, Gene F. Baltz, Henry C. Billingsley, David H. Hartke, James A. Holcomb, Chester G. DuBois, Dale L. Taipale
  • Internal combustion engine
    Patent number: 4757792
    Abstract: An internal combustion engine comprising a crankcase adapted to rotatably support a crankshaft having an axis, the crankcase defining a plurality of crankcase chambers and including a generally flat manifold mounting surface including therein a first series of inlet openings aligned in the direction of the crankshaft axis, and a second series of inlet openings aligned in the direction of the crankshaft axis, the first and second series being laterally offset with respect to the direction of the crankshaft axis, and each of the inlet openings of the first and second series being respectively adapted to feed air to one of the crankcase chambers and having a minor dimension parallel to the crankshaft axis, a major dimension transverse to the crankshaft axis, and a portion overlapping the inlet openings of the other of the first and second series.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: July 19, 1988
    Assignee: Outboard Marine Corporation
    Inventors: John D. Flaig, Gene F. Baltz, Henry C. Billingsley, David J. Hartke, James A. Holcomb, Chester G. DuBois, Dale L. Taipale