Patents by Inventor Marcel Manson

Marcel Manson 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).

  • Device for the spacing and holding in place of fuel rods in a fuel assembly
    Patent number: 4772447
    Abstract: Device for the spacing and holding in place of fuel rods arranged in accordance with a mesh network in a nuclear reactor, incorporating a spacing structure having recesses regularly arranged in accordance with a mesh network superimposed on the mesh network of the rods, cylindrical sleeves formed from rings connected by elastic strips curved towards the inside of each sleeve and means for fixing the sleeves to said structure.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: September 20, 1988
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Marcel Manson, Lioka Razafindrazaka
  • Method and apparatus for producing a reactor spacing grid by pulse laser welding
    Patent number: 4636606
    Abstract: The present invention relates to a method and to an apparatus for producing nuclear reactor structures, such as spacing grids, by pulse laser welding.The grid is placed in a tight enclosure and having thin plates, which intersect one another, so as to define a certain number of crosspieces. By means of a laser source positioned externally of the enclosure, each of the ends of the crosspieces is fixed and optionally the crosspieces are welded along the intersections of the plates.Application to the construction of zirconium alloy spacing grids.
    Type: Grant
    Filed: March 2, 1983
    Date of Patent: January 13, 1987
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Bernard Chastanet, Claude Decailloz, Solange Dournel, Marcel Manson