Patents by Inventor Fred L. Snow

Fred L. Snow 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).

  • Plug and method for plugging a penetration in a pressure vessel wall
    Patent number: 5135705
    Abstract: A plug and method for plugging a penetration in a pressure vessel wall having a sleeve protruding through the penetration. The sleeve is cut at a point between the interior and exterior surfaces of the pressure vessel wall. The cut portion of the sleeve extending beyond the exterior surface of the pressure vessel wall is removed. A plug sized to fit within the penetration is inserted into the penetration so that one end of the plug is flush with the exterior surface of the pressure vessel wall. A weld pad is deposited on the end of the plug and the exterior surface of the pressure vessel wall.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: August 4, 1992
    Assignee: B&W Nuclear Service Company
    Inventors: Henry H. Gooch, IV, Fred L. Snow, Jr., Kenneth D. Verble
  • Two piece pressurizer heater sleeve
    Patent number: 5094801
    Abstract: A replacement heater sleeve for a nuclear reactor coolant system pressurizer and method for replacing a damaged original heater nozzle. The original heater and heater nozzle are removed from the pressurizer and the original bore is enlarged. An outer sleeve is installed in the enlarged bore on the same center as the original heater nozzle and is substantially flush with the interior of the pressurizer. The outer sleeve is welded to the pressurizer on its interior and exterior surfaces. An inner sleeve is installed in the inner diameter of the outer sleeve and extends beyond the outer sleeve into the pressurizer. The inner sleeve is welded to the lower end of the outer sleeve and is provided with an inner diameter sized to receive a heater of the same size as that originally installed in the pressurizer. The inner sleeve also maintains the original heater alignment in the pressurizer.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: March 10, 1992
    Assignee: The Babcock & Wilcox Company
    Inventors: Larry D. Dixon, Fred L. Snow, Kenneth B. Stuckey
  • Method of replacing a heater nozzle in a nuclear reactor pressurizer
    Patent number: 5091140
    Abstract: A replacement heater sleeve for nuclear reactor coolant system pressurizer and method for replacing a damaged original heater nozzle. The original heater and heater nozzle are removed from the pressurizer and the original bore is enlarged. An outer sleeve is installed in the enlarged bore on the same center as the original heater nozzle and is substantially flush with the interior of the pressurizer. The outer sleeve is welded to the pressurizer on its interior and exterior surfaces. An inner sleeve is installed in the inner diameter of the outer sleeve and extends beyond the outer sleeve into the pressurizer. The inner sleeve is welded to the lower end of the outer sleeve and is provided with an inner diameter sized to receive a heater of the same size as that originally installed in the pressurizer. The inner sleeve also maintains the original heater alignment in the pressurizer.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: February 25, 1992
    Assignee: The Babcock & Wilcox Company
    Inventors: Larry D. Dixon, Fred L. Snow, Kenneth B. Stuckey