Patents by Inventor Jean-Louis Mazodier

Jean-Louis Mazodier 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 the preparation of a piston made of aluminum alloy with its surface treated so as not to seize on contact with a cylinder with an internal wall made of aluminum alloy
    Patent number: 4166776
    Abstract: A piston made of aluminum alloy with its surface treated by anodization in a phosphoric medium, onto which a layer of an anti-friction metal is deposited by electrolysis, so that the piston does not seize on contact with a cylinder with its internal wall made of aluminum alloy.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: September 4, 1979
    Assignee: Societe de Vente de l'Aluminium Pechiney
    Inventors: Jacques Lefebvre, Jean-Louis Mazodier
  • Hollow bodies produced by powder extrusion of aluminum-silicon alloys
    Patent number: 4155756
    Abstract: This invention concerns production by extrusion of hollow cylindrical bodies starting with granulated alloys of aluminum containing silicon. It consists of preparing the composition of the alloy in a liquid form, producing granules by centrifugal pulverization or atomization, introducing the granulated material into an extrusion press to obtain the hollow profile by extrusion and extruding the granular material within to form a cylindrical body. This invention is applicable to form hollow bodies and particularly sleeves of motors of high content silicon aluminum alloy through which size and distribution of primary silicon is improved over traditional casting methods.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: May 22, 1979
    Assignee: Societe de Vente de l'Aluminium Pechiney
    Inventors: Rene Perrot, Jean-Louis Mazodier
  • Method of producing hollow bodies in aluminum-silicon alloys by powder-extrusion
    Patent number: 4099314
    Abstract: This invention concerns production by extrusion of hollow cylindrical bodies starting with granulated alloys of aluminum containing silicon. It consists of preparing the composition of the alloy in a liquid form, producing granules by centrifugal pulverization or atomization, introducing the granulated material into an extrusion press to obtain the hollow profile by extrusion and extruding the granular material within to form a cylindrical body. This invention is applicable to form hollow bodies and particularly sleeves of motors of high content silicon aluminum alloy through which size and distribution of primary silicon is improved over traditional casting methods.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: July 11, 1978
    Assignee: Societe de Vente de l'Aluminium Pechiney
    Inventors: Rene Perrot, Jean-Louis Mazodier