Patents by Inventor James M. DuBay

James M. DuBay 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).

  • Jet pump diffuser stack repair
    Patent number: 9659676
    Abstract: A method of repairing a slip joint on a jet pump assembly between an inlet mixer and a diffuser, with the diffuser having an opening that receives the inlet mixer with a given spacing between an outside diameter of the inlet mixer and an inside diameter of the opening in the diffuser forming an annulus whose spacing is a product of manufacture and vibration wear. The method comprises the steps of remotely accessing the annulus and narrowing a radial dimension of the annulus.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: May 23, 2017
    Assignee: Westinghouse Electric Company LLC
    Inventors: Daniel W. Golden, James M. DuBay, Stephen J. Kaylor, Rodney Lum, Jeffrey A. Smouse, Wendell Blane Wilton
  • JET PUMP DIFFUSER STACK REPAIR
    Publication number: 20140109406
    Abstract: A method of repairing a slip joint on a jet pump assembly between an inlet mixer and a diffuser, with the diffuser having an opening that receives the inlet mixer with a given spacing between an outside diameter of the inlet mixer and an inside diameter of the opening in the diffuser forming an annulus whose spacing is a product of manufacture and vibration wear. The method comprises the steps of remotely accessing the annulus and narrowing a radial dimension of the annulus.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 24, 2014
    Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC
    Inventors: Daniel W. Golden, James M. DuBay, Stephen J. Kaylor, Rodney Lum, Jeffrey A. Smouse, Wendell Blane Wilton
  • Wedge positioning apparatus for jet pump assemblies in nuclear reactors
    Patent number: 8605852
    Abstract: An auxiliary wedge positioning apparatus/assembly 100 for use in a nuclear reactor pressure vessel 12 having riser piping 44 and 144 and a jet pump assembly 46 and 120, the apparatus 100 having a combination slide wedge 105 and spring 103 mounted on a restraint bracket body 102 having a transverse rail 110 with end gull-wing hooked protrusions 111 with sections 150, 152, 156 and wing stability attachment 155, the slide wedge used for placement between the riser piping 44 and 144 and jet pump assembly 46 and 120 to control vibrations during operation of the reactor vessel 12.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: December 10, 2013
    Assignee: Westinghouse Electric Company LLC
    Inventors: Michael A. Flanigan, Stephen J. Kaylor, James M. DuBay, Rodney Lum
  • WEDGE POSITIONING APPARATUS FOR JET PUMP ASSEMBLIES IN NUCLEAR REACTORS
    Publication number: 20110280360
    Abstract: An auxiliary wedge positioning apparatus/assembly 100 for use in a nuclear reactor pressure vessel 12 having riser piping 44 and 144 and a jet pump assembly 46 and 120, the apparatus 100 having a combination slide wedge 105 and spring 103 mounted on a restraint bracket body 102 having a transverse rail 110 with end gull-wing hooked protrusions 111 with sections 150, 152, 156 and wing stability attachment 155, the slide wedge used for placement between the riser piping 44 and 144 and jet pump assembly 46 and 120 to control vibrations during operation of the reactor vessel 12.
    Type: Application
    Filed: November 1, 2010
    Publication date: November 17, 2011
    Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC
    Inventors: Michael A. Flanigan, Stephen J. Kaylor, James M. DuBay, Rodney Lum