Patents by Inventor Earl J. Kohn

Earl J. Kohn 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).

  • Object detecting system
    Patent number: 4035760
    Abstract: 1. A system for detecting the movement of a remote object comprising trantting means for illuminating said remote object with a signal of wave energy, receiving means for recovering an echo reflected by said object, signal display means responsive to said echo to provide a separate visual display of each cycle of said reflected echo, and frequency comparing means responsive to a difference in frequency between the wave energy of said received echo and the wave energy of said transmitted signal to vary the orientation of said visual indication from a reference orientation, whereby a variation in said orientation will provide an instantaneous indication of a doppler effect on said transmitted wave energy.
    Type: Grant
    Filed: September 18, 1951
    Date of Patent: July 12, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: George F. Asbury, Earl J. Kohn, James R. Richards