Patents by Inventor Ernest L. Wright

Ernest L. Wright 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 and method of removing radioactive bottoms from an evaporator
    Patent number: 4273670
    Abstract: Apparatus and methods are disclosed for removing concentrated radioactive aqueous waste from an evaporator and delivering the waste to a storage tank. The evaporator drain conduits are maintained full of feed liquor when concentrated waste is not being removed from the evaporator and feed liquor is used to rinse the conduits after the concentrated waste removal through the conduits is completed. The liquid fed through the conduits is carefully controlled by a sequencer or timer. A fast acting evaporator drain valve is used which can be rinsed by feed liquor to avoid plugging and deposition of radioactive solids in the valve.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: June 16, 1981
    Assignee: HPD Incorporated
    Inventors: Peter J. Cheng, Jay D. Dockendorff, Ernest L. Wright