Patents by Inventor Robert Lucien Martinou

Robert Lucien Martinou 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).

  • Hybrid component with high strength/mass ratio and method of manufacturing said component
    Patent number: 6132857
    Abstract: A high-strength hybrid component including a relatively soft first part made of a composite material including an organic matrix reinforced with fibers, a relatively hard second part made of metal, metal alloy, or ceramic, and a transition layer made of a composite material including a matrix of a material that is weldable to the hard part and fibers that are extensions of the fibers of the soft part. The transition layer matrix and the hard part may be formed by deposition of molten material on to the fiber preform of the soft part using flame, electric arc, or plasma. The resin matrix of the soft part is impregnated into the preform and polymerized afterwards. Alternatively, the hard part may be machined to shape and welded to the transition layer before completing the soft part.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: October 17, 2000
    Assignee: Societe Nationale d'Etude et de Construction de Moterus d'Aviation "Snecma"
    Inventors: Christophe Jean Roger Champenois, Laurent Jean Pierre David, Gerard Michel Roland Gueldry, Robert Lucien Martinou
  • Hybrid component with high strength/mass ratio and method of manufacturing said component
    Patent number: 5887332
    Abstract: The invention provides a high-strength hybrid component comprising a relatively soft first part -made of a composite material consisting of an organic matrix reinforced with fibres, a relatively hard second part made of metal, metal alloy or ceramic, and a transition layer made of a composite material consisting of a matrix of a material which is weldable to the hard part and fibres which are extensions of the fibres of the soft part. The transition layer matrix and the hard part may be formed by deposition of molten material on to the fibre preform of the soft part, using flame, electric arc or plasma, and the resin matrix of the soft part is impregnated into the preform and polymerized afterwards.Alternatively, the hard part may be machined to shape and welded to the transition layer before completing the soft part.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 30, 1999
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs D'Aviation "Snecma"
    Inventors: Christophe Jean Roger Champenois, Laurent Jean Pierre David, Gerard Michel Roland Gueldry, Robert Lucien Martinou