Patents by Inventor Kurt Ikrath, deceased

Kurt Ikrath, deceased 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).

  • Method of and apparatus for transmitting clandestine radio signals
    Patent number: 4170757
    Abstract: Clandestine signals are transmitted by using a surface wave acoustic device to disperse the spectrum of a pulse-modulated CW carrier. The dispersed signal is itself modulated and then transmitted to a remote location, at low level. At the remote location, an acoustic device of conjugate characteristics is used to recover the dispersed signal from out of the background noise.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: October 9, 1979
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: William J. Skudera, Charles M. De Santis, Kurt Ikrath, deceased
  • Camouflaged dual-slot antenna
    Patent number: 4101896
    Abstract: A low profile camouflaged antenna for military vehicles and the like. The tenna comprises an elongated, typically rectangular, sheet of metal curved to conform to the curvature of the vehicle. Insulated spacers, for example of plastic or fiberglass, maintain a fixed spacing between the metal plate and the vehicle, thus forming two elongated slots which, when suitably energized, act as a dual-slot antenna.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: July 18, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kurt Ikrath, deceased, Paul Sexton, Peter Pingitore, William Kennebeck