Patents by Inventor Stepan Evgenievich Pigasov

Stepan Evgenievich Pigasov 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 producing alloys based on calcium, silicon and iron
    Patent number: 3930842
    Abstract: A method of making an alloy of calcium, silicon and iron in which a batch is charged into an electric furnace in portions and melted in a reducing atmosphere, with the loading of the first batch portion consisting entirely of lime being started during the period of discharging the melt of the previous melting, and with the last batch portion amounting to from 3-30 wt.% of the quantity of the melt present in the furnace being loaded 10-30 minutes before the melt is discharged from the furnace.
    Type: Grant
    Filed: August 20, 1974
    Date of Patent: January 6, 1976
    Inventors: Mark Abramovich Ryss, Viktor Petrovich Zaiko, Gerald Semenovich Belyaev, Anatoly Konstantinovich Golev, Aron Semenovich Mikulinsky, Vladimir Nikolaevich Gusarov, Stepan Evgenievich Pigasov, Igor Sergeevich Bedov, Valentin Nikotovich Pomogaev, Georgy Nikolaevich Kozhevnikov