Patents by Inventor John E. Lamar

John E. Lamar 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).

  • Vortex-lift roll-control device
    Patent number: 4132375
    Abstract: A wing, for aircraft of cropped, arrow-type planform with thin leading and side edges, having a pivotable tip to alter the crop angle of the wing during flight. Increasing the crop angle causes the wing side edge to become a trailing edge which reduces the strength of the side edge vortex flow. Decreasing the crop angle causes opposite results, in particular the side edge is now a leading edge and can generate a leading edge vortex flow. The wing constitutes a roll control device for aircraft of the stated design particularly effective at higher angles of attack.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: January 2, 1979
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: John E. Lamar