Patents by Inventor C. Downing Sweat, Jr.

C. Downing Sweat, Jr. 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 for cleaning large tank interiors
    Patent number: 4220170
    Abstract: An apparatus for cleaning large tank interiors and other similar areas having a telescoping boom assembly attached to a base assembly with a positionable water nozzle assembly attached to one end of the boom assembly wherein the base member positioned in the tank interior is provided with a cage area housing the necessary control equipment and human operator.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: September 2, 1980
    Inventors: Chris J. Hebert, Ralph T. Hollister, C. Downing Sweat, Jr.