Patents by Inventor Frank Wegner Donnelly

Frank Wegner Donnelly 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).

  • Hybrid battery/gas turbine locomotive
    Patent number: 6308639
    Abstract: Prior battery-powered electric locomotives have used multiple diesel engines to charge the batteries and have not been commercially accepted. The present invention provides a yard switcher which combines battery storage with a gas microturbine generator to provide an effective fuel-efficient and environmentally friendly locomotive. locomotive.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: October 30, 2001
    Assignee: Railpower Technologies Corp.
    Inventors: Frank Wegner Donnelly, Gerard Henry Koldyk