Patents by Inventor Frank O. Dixon

Frank O. Dixon 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).

  • Loading and unloading system for tank car trains
    Patent number: 4266580
    Abstract: A system and apparatus are disclosed for automatically sequentially loading and unloading railway tank cars from a single station. A novel valve arrangement in combination with a liquid sensor permits tank cars to be loaded or unloaded in sequence with each car after it is filled being isolated from the loading system to provide a straight flow path for the liquid directly from the station to the tank car to be loaded or unloaded.
    Type: Grant
    Filed: August 7, 1979
    Date of Patent: May 12, 1981
    Inventor: Frank O. Dixon