Patents by Inventor Daniel Videau

Daniel Videau 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 obtaining iron-based alloys allowing in particular their mechanical properties to be improved by the use of lanthanum, and iron-based alloys obtained by the said method
    Patent number: 4414027
    Abstract: This invention relates to the use of lanthanum in the production of iron-based alloys. Accordingly, is provided a method comprising adding at least 0.0001 to about 0.5 to 2 weight percent of lanthanum to said iron-based alloy during its production. Thus the solidification curve is modified, as shown in FIG. 2, thereby reducing or preventing certain defects of said alloys, such as pinholes and cavities in spheroidal graphite cast-irons, carbides in flaky graphite grey-iron; the castability, rollability and anisotropy of steels are improved.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: November 8, 1983
    Assignee: Companie Universelle d'Acetylene et d'Electrometallurgie
    Inventors: Mario Gorgerino, Daniel Videau
  • Method for obtaining iron-based alloys allowing in particular their mechanical properties to be improved by the use of lanthanum, and iron-based alloys obtained by the said method
    Patent number: 4290805
    Abstract: This invention relates to the use of lanthanum in the production of iron-based alloys. Accordingly, is provided a method comprising adding at least 0.0001 to about 0.5 to 2 weight percent of lanthanum to said iron-based alloy during its production. Thus the solidification curve is modified, as shown in FIG. 2, thereby reducing or preventing certain defects of said alloys, such as pinholes and cavities in spheroidal graphite cast-irons, carbides in flaky graphite grey-iron; the castability, rollability and anisotropy of steels are improved.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: September 22, 1981
    Assignee: Compagnie Universelle D'Acetylene et D'Electro-Metallurgie
    Inventors: Mario Gorgerino, Daniel Videau