Patents by Inventor Robert Bagat

Robert Bagat 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 for making a part of composite material with ceramic matrix and resulting part
    Patent number: 8039053
    Abstract: An interphase coating is formed by chemical vapor infiltration (CVI) on the fibers constituting a fiber preform, the interphase coating comprising at least an inner layer in contact with the fibers for embrittlement relief to the composite material, and an outer layer for bonding with the ceramic matrix. The fiber preform is then kept in its shape by the fibers provided with the interphase coating and is consolidated by being impregnated with a liquid composition containing a ceramic precursor, and by transforming the precursor into a ceramic matrix consolidation phase. The consolidated preform is then densified by an additional ceramic matrix phase. No support tooling is needed for forming the interphase coating by CVI or for densification after consolidation using the liquid technique.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: October 18, 2011
    Assignee: SNECMA Propulsion Solide
    Inventors: Eric Philippe, Sébastien Bertrand, Eric Bouillon, Alain Caillaud, Jean-Christophe Ichard, Robert Bagat
  • Method for Making a Part of Composite Material with Ceramic Matrix and Resulting Part
    Publication number: 20080299385
    Abstract: An interphase coating is formed by chemical vapor infiltration (CVI) on the fibers constituting a fiber preform, the interphase coating comprising at least an inner layer in contact with the fibers for embrittlement relief to the composite material, and an outer layer for bonding with the ceramic matrix. The fiber preform is then kept in its shape by the fibers provided with the interphase coating and is consolidated by being impregnated with a liquid composition containing a ceramic precursor, and by transforming the precursor into a ceramic matrix consolidation phase. The consolidated preform is then densified by an additional ceramic matrix phase. No support tooling is needed for forming the interphase coating by CVI or for densification after consolidation using the liquid technique.
    Type: Application
    Filed: February 22, 2006
    Publication date: December 4, 2008
    Inventors: Eric Philippe, Sebastien Bertrand, Eric Bouillon, Alain Caillaud, Jean-Christophe Ichard, Robert Bagat