Patents by Inventor Roger K. Steele

Roger K. Steele 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).

  • Longitudinal rail profilometer
    Patent number: 4288926
    Abstract: Portable apparatus for use in measuring vertical deviation of the surface of a rail from a reference plane. The measuring device includes a pair of guide beams and a hand-powered carriage which move along the beams. A sensor, which follows undulations resulting from rail wear, is mounted on the carriage and is coupled to the pen of a recorder.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: September 15, 1981
    Assignee: The United States of America as represented by the Secretary of Transportation
    Inventors: Lennart E. Long, Roger K. Steele, David F. Coleman, Ralph A. Gustafson