Patents by Inventor Yves C. Bienvenu

Yves C. Bienvenu 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).

  • Niobium and titanium based alloys resistant to oxidation at high temperatures
    Patent number: 5284618
    Abstract: A niobium and titanium based alloy having a density less than 6.5 and possessing a high resistance to oxidation at high temperatures in the region of 900.degree. C. has a chemical composition comprising, in atomic percentages:more than 24% Nbfrom 30 to 48% Tifrom 21 to 38% Aland possibly up to 8% of at least one of Cr, Mo, V and Zr.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: February 8, 1994
    Assignees: Association pour la Recherche et le Developpement des Methodes et Processus Industriels "A.R.M.I.N.E.S.", Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventors: Michel L. Allouard, Yves C. Bienvenu, Christophe Delaunay, Christian A. B. Ducrocq, Gerard Lemaitre, Michel Marty, Andre Walder
  • Method for the assembly of and the interconnection by diffusion of bodies of metal alloys
    Patent number: 4724120
    Abstract: A method for the assembly and connection of bodies, massive parts or powder grains, of alloys comprising at least 50% of nickel, cobalt or iron, comprises a preliminary operation of deposition at the interface of the said bodies of a product of the type MBF.sub.x, x being equal to 3 or 4, M designating a radical of the type NH.sub.4 giving off when hot a gaseous component such as NH.sub.3 or a metallic element and a sequence of treatment of cleaning/activation by passage of the coated body at a temperature in excess of the temperature of sublimation of the said product.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: February 9, 1988
    Assignees: Association pour la Recherche et le Developpement des Methodes et Processus Industriels "A.R.M.I.N.E.S.", Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventors: Yves C. Bienvenu, Thierry J. M. E. Massart