Patents by Inventor Mark A. Litos

Mark A. Litos 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).

  • Patent number: 5173069
    Abstract: An autorotative flyer comprises a circular root portion integral with a wing portion; the root being generally circular and providing a counterweight of from 55-85%, preferably 70-72%, of the total weight of the flyer and locating the center of gravity of the flyer behind the leading edge of the wing a distance equal to from 28-29% of the mean aerodynamic chord of the wing and at a spanwise distance from the root end of the flyer of from 10-21% of the root end to wing tip span; the wing of the flyer having curved leading and trailing edges and a curved tip with an integral spar along the leading edge and a wing area providing a wing loading of not more than about 0.5 lbs./ft.sup.2 ; and, optionally, scallops on the trailing edge of the wing and a vane on the edge of the root section concentric with the center of gravity.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: December 22, 1992
    Assignee: Mainstream Marketing, Inc.
    Inventors: Mark A. Litos, Petrus A. M. Spierings
  • Patent number: D338245
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: August 10, 1993
    Assignee: Mainstream Marketing, Inc.
    Inventor: Mark A. Litos