Patents by Inventor Gregory S. Stevenson

Gregory S. Stevenson 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).

  • Sleeve valve system for internal combustion engine having elliptical path
    Patent number: 5183014
    Abstract: An improved internal combustion engine, particularly of the compression ignition, two cycle, aircraft type employing sleeve valves and a modular cylinder and removable cylinder head and retainer. The engine is turbocharged with the turbocharger separated into the compression turbine on one side of a V shaped cylinder array and the drive turbine on the opposite side. The exhaust is discharged through the center of the power output shaft making this engine particularly suited for pusher aircraft applications.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: February 2, 1993
    Inventor: Gregory S. Stevenson
  • Internal combustion engine
    Patent number: 5088285
    Abstract: An improved internal combustion engine, particularly of the compression ignition, two cycle, aircraft type employing sleeve valves and a modular cylinder and removable cylinder head and retainer. The engine is turbocharged with the turbocharger separated into the compressor on one side of a V shaped cylinder array and the drive turbine on the opposite side. The exhaust is discharged through the center of the power output shaft making this engine particularly suited for pusher aircraft applications.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: February 18, 1992
    Assignee: Wagner & Middlebrook
    Inventor: Gregory S. Stevenson