Patents by Inventor William Y. Cheng

William Y. Cheng 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).

  • Directed spray mast
    Patent number: 6889920
    Abstract: Disclosed is an elongated, tubular, compact high pressure sprayer apparatus for insertion into an access port of vessels having contaminated interior areas that require cleaning by high pressure water spray. The invention includes a spray nozzle and a camera adjacent thereto with means for rotating and raising and lowering the nozzle so that areas identified through the camera may be cleaned with a minimum production of waste water to be removed.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 10, 2005
    Assignee: Westinghouse Savannah River Company
    Inventors: Thomas A. Nance, Alvin A. Siddall, William Y. Cheng, Kevin T. Counts