Patents by Inventor Laurent Brayer

Laurent Brayer 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 and device for repairing the internal surface of an adapter passing through the head of the vessel of a nuclear reactor
    Patent number: 5434895
    Abstract: A detection and inspection of cracks (135) on the internal surface of the adapter (2) is carried out, at least in a zone close to the weld for fastening the adapter (2), using remote inspection operations comprising at least one dye penetration inspection with remote borescope examination of the cracks (135) revealed by the dye penetration. At least one excavation cavity (136) is made by machining to a specified depth of the internal surface of the adapter (2) having a crack (135). As a function of the result of the dye penetration inspection, the zone is or is not built back up after excavation. The device comprises an assembly for moving a rod in translation and in rotation inside the adapter. Brushing, cleaning, or sprinkling means may be fastened to the end of the rod. The device also includes a second assembly for moving a borescope support inside the adapter and tooling for machining the internal surface of the adapter.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: July 18, 1995
    Assignee: Framatome
    Inventors: Alain Domy, Claude Hebert, Laurent Brayer
  • Method and device for repairing the internal surface of an adapter passing through the head of the vessel of nuclear reactor
    Patent number: 5396525
    Abstract: A detection and inspection of cracks (135) on the internal surface of the adapter (2) is carried out, at least in a zone close to the weld for fastening the adapter (2), using remote inspection operations comprising at least one dye penetration inspection with remote borescope examination of the cracks (135) revealed by the dye penetration. At least one excavation cavity (136) is made by machining to a specified depth of the internal surface of the adapter (2) having a crack (135). As a function of the result of the dye penetration inspection, the zone is or is not built back up after excavation. The device comprises an assembly for moving a rod in translation and in rotation inside the adapter. Brushing, cleaning or sprinkling devices, a device for moving a borescope support inside the adapter and tooling for machining the internal surface of the adapter may be fastened to the end of the rod.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: March 7, 1995
    Assignee: Framatome
    Inventors: Alain Domy, Claude Hebert, Laurent Brayer