Patents by Inventor Donal Dunbar

Donal Dunbar 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).

  • Publication number: 20050257528
    Abstract: The present invention is a retractable afterburner shroud for use upon a jet engine. The retractable shroud conforms to an outer surface of a jet engine. The afterburner shroud is affixed by a plurality of moveable support arms. The afterburner shroud is retractable. During operation of the afterburner shroud, the afterburner shroud is extended rearward toward the exhaust of the jet engine. A storage tank provides liquid oxygen through the support arms to a mixing ring located within the afterburner shroud. The mixing ring mixes the liquid oxygen and fuel to form a combustible mixture. The combustible mixture is injected into the exhaust wherein the mixture is ignited. The ignited mixture provides additional thrust for the jet engine.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 24, 2005
    Inventor: Donal Dunbar
  • Publication number: 20050116112
    Abstract: A high energy electric feed drive system. The drive system includes a vehicle, such as a spacecraft and a magnet mounted within the vehicle. An ignition system is powered by a power source. The ignition system provides a directed plasma stream at the magnet. When the plasma stream strikes the magnet, dispersion loops emanate from the magnet. A plurality of particle acceleration tubes are utilized to capture and direct the dispersion loops outwardly and in front of the magnet. When the dispersion loops exit the particle acceleration tubes, the dispersion loops attempt to find the magnet. In the process, the dispersion loops provide an attractive pulling source, thereby propelling the magnet and vehicle forward.
    Type: Application
    Filed: November 19, 2003
    Publication date: June 2, 2005
    Inventor: Donal Dunbar