Patents by Inventor Elias Papandreadis

Elias Papandreadis 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).

  • Supersonic propellers for aircrafts
    Patent number: 6565038
    Abstract: The present invention provides one pair or two pairs of horizontal propellers incorporated on the two opposite sides of an aircraft, which propellers by their rotating external blades create through their frontal shell opening a very strong frontal depression, stronger than their drag, providing an horizontal motion subsonic or supersonic, but their main advantage arise from the supersonic speed power requirement which is less than 20% of that of equivalent supersonic aircraft's, with consequent economy of construction, of maintenance and mainly in flight cost, and also a multiple in flight range and obviously respectively decrease of air pollution.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: May 20, 2003
    Inventor: Elias Papandreadis
  • Supersonic propellers for aircrafts
    Publication number: 20020134885
    Abstract: The present invention provides one pair or two pairs of horizontal propellers incorporated on the two opposite sides of an aircraft, which propellers by their rotating external blades create through their frontal shell opening a very strong frontal depression, stronger than their drag, providing an horizontal motion subsonic or supersonic, but their main advantage arise from the supersonic speed power requirement which is less than 20% of that of equivalent supersonic aircraft's, with consequent economy of construction, of maintenance and mainly in flight cost, and also a multiple in flight range and obviously respectively decrease of air pollution.
    Type: Application
    Filed: January 22, 2001
    Publication date: September 26, 2002
    Inventor: Elias Papandreadis