Patents by Inventor Vladimir E. Efimov

Vladimir E. Efimov 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 of preparing a furnace charge when smelting refractory metals and alloys
    Patent number: 4130416
    Abstract: Method of preparing a furnace charge for smelting refractory hard metals and alloys wherein, pressed-out and uncaked briquettes are fed to the furnace on trays made of a metal readily evaporating at the high alloy melting point. This permits to simplify the technology of preparing charge pieces, improve the quality of the alloys smelted, increase the yield of quality metal and reduce costs.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: December 19, 1978
    Inventors: Georgy F. Zaboronok, Vladimir E. Efimov, Alexandr T. Kozlov