Patents by Inventor DeWitt C. Seward, III

DeWitt C. Seward, III 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).

  • Fixed geometry plasma and generator
    Patent number: 5175466
    Abstract: A fixed geometry plasma and a method of generating such a plasma wherein a stream of charged particles follows a spiral path. Said spiralling plasma is containable in a magnetic field such that a toroid is formed.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: December 29, 1992
    Inventor: DeWitt C. Seward, III
  • Airship control system
    Patent number: 4204656
    Abstract: The invention is a system for providing propulsion, control, and stability to small airships (miniblimps) in free flight, especially lighter than air airships. Propulsion is provided by a single motor. Control is achieved by moving the propulsion motor up or down, or left or right. Stability is provided by a single fixed control surface.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: May 27, 1980
    Inventor: DeWitt C. Seward, III