Patents by Inventor by Valentina Kuzminichna Nikitina, administrator

by Valentina Kuzminichna Nikitina, administrator 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).

  • Apparatus for continuous vacuum-refining of metals
    Patent number: 4027861
    Abstract: The present invention relates to apparatus for continuous refining of tin.The apparatus comprises a vacuum chamber accommodating an evaporator which is a vessel with a granulated loose material filling the entire vessel volume to provide a maximum evaporating surface washed by molten metal being refined, with the vessel side walls being fitted with outlets for the effluence of impurity vapors, referred to hereinafter as volatilized impurities, liberated from said metal evaporating surface, and with the vessel bottom having drains for discharging refined metal from the vacuum chamber.
    Type: Grant
    Filed: April 2, 1976
    Date of Patent: June 7, 1977
    Inventors: Vladimir Semenovich Cherednichenko, Gennady Ivanovich Orlov, Aron Semenovich Mikulinsky, Jury Semenovich Arzamastsev, Vladimir Vasilievich Efremkin, Valentin Alexeevich Nikitin, deceased, by Valentina Kuzminichna Nikitina, administrator, by Dmitry Valentinovich Nikitin, administrator