Patents by Inventor Viktor Ivanovich Yakovlev

Viktor Ivanovich Yakovlev 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 surface-strengthening of steel parts working in abrasion
    Patent number: 3987222
    Abstract: The method consists in preparing a mixture composed of 20-80 g of molybdenum disulphide and 1-5 g of sulphuric acid per liter of glycerine, heating said mixture from 180.degree. to 230.degree. C, holding the workpieces in said mixture for 3-7 hours in presence of brass, followed by washing the parts with a cooling liquid and drying them.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: October 19, 1976
    Inventors: Petr Mikhailovich Verkhovykh, Viktor Ivanovich Yakovlev, Alexei Fedorovich Aakitin, Viktor Fedorovich Alexandrov, Nikolai Afanasievich Miroshkin