Patents by Inventor Michel Giroutru

Michel Giroutru 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).

  • Patent number: 4974660
    Abstract: The process and apparatus according to the invention relates to the continuous casting of hollow bodies of metals such as aluminium, copper, steels of all types, or other metals or alloys. The process comprises introducing a liquid metal into an annular space between an outer mold and an inner mandrel, the liquid metal being subjected in the vicinity of the mandrel to the action of a movable magnetic field which entrains it in an upward direction. The magnetic field is preferably generated by a magnetic rotor which is disposed in the mandrel. The process is used in particular for producing blanks intended for the production of non-welded pipes and tubes.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: December 4, 1990
    Assignee: Vallourec
    Inventors: Roland Ernst, Marcel Garnier, Michel Giroutru, Andre Gueussier, Rene Moreau, Pierre Peytavin
  • Patent number: 4729422
    Abstract: The process and apparatus according to the invention concern continuous casting of hollow bodies of metals such as aluminum, copper, steels of all types, or other metals or alloys. The process comprises introducing the liquid metal into an annular space between an outer mold and an inner mandrel, the liquid metal being subjected in the vicinity of the mandrel to the action of a movable magnetic field which entrains it in an upward direction. The magnetic field is preferably generated by a magnetic rotor which is disposed in the mandrel. The process is used in particular for producing blanks intended for the production of non-welded pipes and tubes.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: March 8, 1988
    Assignee: Vallourec
    Inventors: Roland Ernst, Marcel Garnier, Michel Giroutru, Andre Gueussier, Rene Moreau, Pierre Peytavin
  • Patent number: 4614225
    Abstract: The process and the device according to the invention relate to the continuous casting of hollow bodies made of metals such as aluminum, copper, steels of all types or other metals or alloys. The process involves introducing the liquid metal into an annular space between an external mold and an internal mandrel, the liquid metal being subjected in the vicinity of the mandrel to the action of a moving magnetic field which drives it upward. This field is created by a magnetic rotor housed in the mandrel comprising a rotating part around which is arranged at least one spiral made of magnetized magnetic material made integral with the rotor by at least one collar. The process is applied, in particular, to the production of blanks intended for the manufacture of seamless tubes.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: September 30, 1986
    Assignee: Vallourec
    Inventors: Roland Ernst, Marcel Garnier, Michel Giroutru, Rene Moreau