Patents by Inventor Chantal Sylvette Marie Noelle Langlois

Chantal Sylvette Marie Noelle Langlois 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 of making ceramic cores for use in casting
    Patent number: 5697418
    Abstract: A method of making a ceramic core for use in a casting process comprises the steps of forming a core in a mould by hot injection of a thermoplastic paste consisting of a refractory ceramic composition and an organic fraction, eliminating the organic fraction from the core by heat treatment, heat treating the core to achieve the minimum consolidation necessary to enable the core to be handled, impregnating the porous structure of the core with a solution comprising a silica or alumina based elementary oxide colloid, and eliminating the liquid from the impregnated product.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: December 16, 1997
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "Snecma"
    Inventors: Thierry Alain Bardot, Nadine Burkarth, Chantal Sylvette Marie Noelle Langlois, Nicolas Lequeux