Patents by Inventor Joseph M. Leclercq

Joseph M. Leclercq 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 limiting the effect of axial hydraulic flow force exerted on fuel assemblies of water-cooled nuclear reactors
    Patent number: 4659538
    Abstract: Apparatus for limiting the effect of axial hydraulic flow force exerted on the fuel assemblies by the hydraulic pressure of a coolant in a water-cooled nuclear reactor comprises slit cylindrical elastic sleeves positioned within recesses in cylindrical housings carried by the fuel assemblies, the sleeves receiving centering pins connected to upper and lower core plates of the reactor and exerting frictional force thereon so as to control the axial movements of the fuel assemblies during transient variations in hydraulic flow force.
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: April 21, 1987
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Joseph M. Leclercq