Patents by Inventor James Alfred Sharpsteen

James Alfred Sharpsteen 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).

  • Diesel engine
    Patent number: 3954089
    Abstract: A direct-injection, open-chamber, compression-ignition engine is designed to operate at high outputs with a minimum production of oxides of nitrogen by a combination of fuel-air ratios, air-delivery swirl, fuel injection rates and pattern and diameter and configuration of combustion chamber whereby noxious emissions are substantially reduced.
    Type: Grant
    Filed: July 16, 1971
    Date of Patent: May 4, 1976
    Assignee: Deere & Company
    Inventors: Lee Roy Hardesty, James Alfred Sharpsteen