Patents by Inventor Douglas S. Swain

Douglas S. Swain 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).

  • Footwear testing apparatus and method
    Patent number: 4432223
    Abstract: Footwear is tested and evaluated by apparatus which is capable of simulat the actual wearing thereof under various environmental conditions. The apparatus includes a leg pylon and artificial foot which are moved as a unit by apparatus which duplicates the motion of the knee and ankle of an individual. The artificial foot, on which the footwear to be tested is mounted, may be provided with various sensors or condition simulators.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: February 21, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Elmer G. Paquette, Michael J. Maloney, Douglas S. Swain, Richard F. LaCerte, James B. Peters, Robert E. Mast
  • Sole for footwear
    Patent number: D284519
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: July 8, 1986
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Richard A. Braga, Carole A. Przygoda, Richard F. Lacerte, Douglas S. Swain