Patents by Inventor Gert Lundgren

Gert Lundgren 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).

  • Vertical/short take-off and landing aircraft
    Patent number: 8256704
    Abstract: A vertical/short take-off and landing aircraft with a single proprotor assembly that has a pair of inline counter-rotating rotors. Two inline counter-rotating engines are directly connected to the rotors. One engine is shut down in horizontal flight to improve efficiency. Gimbal mounting the proprotor assembly permits thrust to be directed forward to back and left to right to control pitch and roll when hovering. Varying the relative engine speeds controls yaw. The aircraft is adaptable as an unmanned vehicle.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: September 4, 2012
    Assignee: LAPCAD Engineering, Inc.
    Inventor: Gert Lundgren
  • Vertical/Short Take-Off and Landing Aircraft
    Publication number: 20090045295
    Abstract: A vertical/short take-off and landing aircraft with a single proprotor assembly that has a pair of inline counter-rotating rotors. Two inline counter-rotating engines are directly connected to the rotors. One engine is shut down in horizontal flight to improve efficiency. Gimbal mounting the proprotor assembly permits thrust to be directed forward to back and left to right to control pitch and roll when hovering. Varying the relative engine speeds controls yaw. The aircraft is adaptable as an unmanned vehicle.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 19, 2009
    Inventor: Gert Lundgren