Patents by Inventor Olivier Azema

Olivier Azema 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).

  • Sintered SIC mechanical seals having particular pore volume, shape, and diameter
    Patent number: 5707065
    Abstract: Mechanically strong and reduced friction porous silicon carbide sintered shaped articles, well adapted for the production, e.g., of leaktight mechanical packings and rotating bearing seals, have a total pore volume ranging from 4% to 18% thereof, the pores of which having an average diameter of the spherical closed pores ranging from 40 to 200 .mu.m.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: January 13, 1998
    Assignee: Ceramiques et Composites S.A.
    Inventors: Olivier Azema, Michel Bougoin
  • Sintered SiC shaped articles and mechanical packings comprised thereof
    Patent number: 5610110
    Abstract: Mechanically strong and reduced friction porous silicon carbide sintered shaped articles, well adapted for the production, e.g., of leaktight mechanical packings and rotating bearing seals, have a total pore volume ranging from 4% to 18% thereof, the pores of which having an average diameter ranging from 40 to 200 .mu.m.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: March 11, 1997
    Assignee: Ceramiques & Composites S.A.
    Inventors: Olivier Azema, Michel Bougoin