Patents by Inventor Rodney L. Palmer

Rodney L. Palmer 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 and apparatus for calibrating a railroad tank car
    Patent number: 4406152
    Abstract: A railroad tank car is calibrated by continuously adding liquid into the tank car from a liquid supply means. The amount of liquid is measured by meter means as the liquid is being continuously added. Depth sensor means continuously determines the depth of liquid in the tank car. A computer is used to monitor the instruments and to obtain a measure of the volume of liquid in the tank car at pre-determined depths and to correlate the volume measure with the measured depth.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: September 27, 1983
    Assignee: Richmond Tank Car Company
    Inventors: Rodney L. Palmer, John T. Ostgaard