Patents by Inventor Pete Leombruni

Pete Leombruni 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).

  • Method of retarding irradiated nuclear vessel crack initiation and extensions
    Patent number: 5563927
    Abstract: An irradiated steel pressurized nuclear reactor pressure vessel 10 is provided with a crack initiation retarding and crack extension retarding reactor vessel integrity girdle 20 or 120 made up of shoes or links 22, with mechanical take up joints (26 to 34a or 126 to 134a). Instead of pivoted shoe links 22, the girdle 120 may be made using constricting roller chain links 122. In any event, crack initiation and crack extension which may result from pressure loading or vessel material embrittled in the beltline region by neutron bombardment is retarded by maintenance of a prestress under the nozzles during all periods of operation of the reactor.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: October 8, 1996
    Assignee: Combustion Engineering, Inc.
    Inventors: Edward A. Siegel, David J. Ayres, Scott A. Kendrick, Pete Leombruni, Frank J. Formanek, Kenneth V. Margotta