Patents by Inventor Delbert W. Pile

Delbert W. Pile 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).

  • Impeller type engine
    Patent number: 3942484
    Abstract: An impeller type engine is disclosed which includes two cover members joined to form a housing, two cam members disposed in the housing facing each other to form a sinuous track of uniform width, a shuttle slidably disposed in the track, an impeller to carry the shuttle as it slides in the track, and means for introducing and igniting a fuel charge and discharging the combustion by-products.
    Type: Grant
    Filed: September 12, 1973
    Date of Patent: March 9, 1976
    Inventor: Delbert W. Pile