Patents by Inventor Fortunat Esnault

Fortunat Esnault 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 and device for producing refractory materials by induction
    Patent number: 4723996
    Abstract: A method and device are provided for producing refractory materials by induction, in which process a mixture of material powders and a binder in solution in water are compacted by extrusion so as to form a solid bar. The bar is introduced into a cold crucible and is caused to melt by magnetic induction. The molten material flows through a lower orifice of the crucible. The invention applies more particularly to the melting of tungsten carbide.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: February 9, 1988
    Assignee: Technogenia, S.A.
    Inventors: Pierre Brunet, Fortunat Esnault, Guy Maybon, Rene Perrier de la Bathie