Patents by Inventor Alexander J. Retz

Alexander J. Retz 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).

  • Inflatable reactor vessel stud hole plug
    Patent number: 4671518
    Abstract: An expandable inflatable circular plug for sealing one of the blind bore holes which are located in a reactor vessel body flange of a nuclear reactor and which are used to fasten the reactor vessel head to the reactor vessel body by means of bolts passing through corresponding bores in a mating flange on the reactor vessel head.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: June 9, 1987
    Assignee: Westinghouse Electric Corp.
    Inventor: Alexander J. Retz