Patents by Inventor Marc Chastant

Marc Chastant 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).

  • Pulverulent composition for forming protective layer on steel melts
    Patent number: 4130423
    Abstract: A composition for forming a protective layer or slag at the surface of molten steel in the mold during a continuous casting process. The composition is constituted by a mixture of a natural silicate of low melting point and an elevated contents of alkaline oxides, a basic compound, a flux and pulverulent carbon. The natural silicate is a feldspar, a nepheline or nepheline-syenite. The composition is intended for use in continuous steel casting processes.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: December 19, 1978
    Assignee: Institut de Recherches de la Siderurgie Francaise (Irsid)
    Inventors: Marc Chastant, Paul-Victor Riboud