Patents by Inventor Edward O. Drumheller

Edward O. Drumheller 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).

  • Auxiliary precombustion chamber and combustion distributor for an internal combustion engine
    Patent number: 4338897
    Abstract: A detachable auxiliary precombustion chamber for an internal combustion engine is adapted to fit into the spark plug bore of the cylinder head and to receive a spark plug in an open bore thereof, and includes flame distributing means projecting into the combustion chamber of the engine and including a distributing cap adapted to distribute and direct flame from the precombustion chamber across the axis of the cylinder throughout the engine combustion chamber.
    Type: Grant
    Filed: August 6, 1980
    Date of Patent: July 13, 1982
    Inventors: Dale G. Drumheller, Robert M. Schell, Edward O. Drumheller