Patents by Inventor Edmond Maria

Edmond Maria 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).

  • Assembly device of ferritic stainless steel tubes on a carbon tube-plate, and process for producing this device
    Patent number: 4848645
    Abstract: Assembly device of tubes in low carbon ferritic stainless steel having 17 to 18.5% by weight of chromium on a tube-plate of carbon steel. It includes at least one overlay of low carbon steel on the surface of the tube-plate opposite the plurality of tubes, of such thickness that the ends of the tubes are located at an intermediate level of the overlay, and weld beads between the ends of the tubes and the overlay.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: July 18, 1989
    Assignee: Societe anonyme dite: Stein Industrie
    Inventors: Marc Franzolini, Edmond Maria, Alain Vanderschaegbe, Jean Bezier
  • Method of assembly of ferritic stainless steel tubes to a carbon steel tube-plate
    Patent number: 4665601
    Abstract: Assembly device of tubes of low carbon ferritic stainless steel having 17 to 18.5% by weight of chromium on a tube-plate of carbon steel. It includes a first overlay of low carbon austenitic stainless steel having 11.50 to 14% by weight of nickel and 22 to 25% by weight of chromium on the surface of the tube-plate opposite the plurality of tubes, a second overlay on the first of low carbon austenitic stainless steel having 10 to 12% by weight of nickel and 19 to 23% by weight of chromium extending beyond the upper level of the ends of the tubes, and weld beads with or without filling metal around these ends between these ends and the stainless steel of the second overlay.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: May 19, 1987
    Assignee: Stein Industrie
    Inventors: Marc Franzolini, Edmond Maria, Alain Vanderschaeghe, Jean Bezier
  • Assembly of ferritic stainless steel tubes on a carbon steel tube-plate
    Patent number: 4617990
    Abstract: Assembly of tubes in low carbon ferritic stainless steel having 17 to 18.5% by weight of chromium on a tube-plate of carbon steel. It includes at least one overlay of low carbon steel on the surface of the tube-plate opposite the plurality of tubes, of such thickness that the ends of the tubes are located at an intermediate level of the overlay, and weld beads between the ends of the tubes and the overlay.
    Type: Grant
    Filed: July 5, 1984
    Date of Patent: October 21, 1986
    Assignee: Stein Industrie
    Inventors: Marc Franzolini, Edmond Maria, Alain Vanderschaeghe, Jean Bezier
  • Assembly device of ferritic stainless steel tubes on a carbon steel tube-plate, and process of manufacturing this device
    Patent number: 4583588
    Abstract: Assembly device of tubes of low carbon ferritic stainless steel having 17 to 18.5% by weight of chromium on a tube-plate of carbon steel. It includes a first overlay of low carbon austenitic stainless steel having 11.50 to 14% by weight of nickel and 22 to 25% by weight of chromium on the surface of the tube-plate opposite the plurality of tubes, a second overlay on the first of low carbon austenitic stainless steel having 10 to 12% by weight of nickel and 19 to 23% by weight of chromium extending beyond the upper level of the ends of the tubes, and weld beads with or without filling metal around these ends between these ends and the stainless steel of the second overlay.
    Type: Grant
    Filed: July 5, 1984
    Date of Patent: April 22, 1986
    Assignee: Stein Industrie
    Inventors: Marc Franzolini, Edmond Maria, Alain Vanderschaeghe, Jean Bezier