Patents by Inventor Pierre T. Lepetit

Pierre T. Lepetit 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).

  • Process for making a metallic coating on surfaces formed of titanium or another refractory metal
    Patent number: 3949122
    Abstract: To produce resisting metal coatings containing at least one brazing metal surfaces formed of titanium or another refractory metal having at least one volatile halide, a coating of this halide of the brazing metal is applied to this surface, this halide being stable in the isolated state and when applied to the surface, the halogen of the said halide being able to form the volatile halide with the refractory metal; the surface thus coated is heated to a temperature which is sufficient to permit the reaction of the metal halide with the refractory metal to form the volatile halide, which escapes and to form the metal coating, bounded by diffusion of the brazing metal to the surface of the refractory metal.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: April 6, 1976
    Assignee: Office National d'Etudes et de Recherches Aerospatiales (O.N.E.R.A.)
    Inventors: Pierre T. Lepetit, Andre R. Hivert