Patents by Inventor Steven M. Luna

Steven M. Luna 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).

  • Apparatus and method for determining the strength and type of soil
    Patent number: 6062090
    Abstract: A novel method and apparatus for measuring the dynamic loading characteristics of a soil bed is provided. The invention pertains to a method and apparatus for measuring, as a function of time, the resistance to penetration offered by a soil bed as the apparatus is fed into the soil at a constant rate. The device of the invention measures and records the multidirectional forces exerted upon it as it is fed through varying layers and types of soil in order to determine the types of soil encountered, their resistance to leading forces, and their various thicknesses and compositions. The device and method are particularly useful for testing and evaluating the bed surfaces of railroads and highways.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: May 16, 2000
    Assignee: Transportation Technology Center, Inc.
    Inventors: Carl G. Bachhuber, Steven M. Luna