Patents by Inventor André Daussan

André Daussan 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 preparing a casting mould
    Patent number: 6540005
    Abstract: A recess (2) forming a pouring gate (2) is provided in a first half (1a) of the mold (1) so as to open out in the parting face (4) in a housing (5) having a top opening (6) in its top portion. A second recess (8) is provided in the second half (1b) of the mold (1) with an opening (9) in the parting face (4) of dimensions smaller than the corresponding dimensions of the housing. The two mold halves (1a, 1b) are assembled together on the parting face (4) and a filter (12) adapted to filter molten metal is inserted into the housing (5) substantially vertically through the top opening (6) thereof.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: April 1, 2003
    Assignee: Daussan & Compagnie
    Inventors: Jean Daussan, Gérard Daussan, André Daussan
  • Device for filtering and treating molten metal
    Patent number: 6216768
    Abstract: The ratio of the number of free holes (4a) in a filtering plate (2, 3), located in the areas (9) which are not covered by the an insert (7) of treating material, on the one hand, to the total number of holes (4, 4a) in said filtering plate (2, 3), on the other hand, is not less than 10% and/or not above 75%.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: April 17, 2001
    Assignee: Daussan et Compagnie
    Inventors: Jean Daussan, Gérard Daussan, André Daussan