Patents by Inventor Olga Borisovna Kazakova

Olga Borisovna Kazakova 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).

  • Carbon-graphite material for brushes of electric machines and method for preparing same
    Patent number: 4119572
    Abstract: A carbon graphite material for brushes of electric machines contains ultraphosphates of metals which are sealed by film-forming polymers. The material is impregnated in a mixture of a metal chloride with an aqueous solution of orthophosphoric acid and heat treated to form ultraphosphates of metals evenly distributed throughout the entire volume of the material. The material is then impregnated in a film-forming polymer resin solution, which enhances the contact characteristics of the material, and again heat treated till the resin is fully polymerized. As a result, the ultraphosphates which have formed earlier in the material, are sealed, thus becoming hydrolytically stable; at the same time, the contact characteristics of the material improve generally, the material becoming highly wear resistant, capable of operating within a wide range of temperatures, pressures and humidity.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: October 10, 1978
    Inventors: Georgy Nikolaevich Fridman, Jury Nikolaevich Vasiliev, Abram Samoilovich Fialkov, Vladimir Petrovich Sosedov, Alexandr Andreevich Tarasov, Yakov Gilievich Davidovich, Nikolai Sergeevich Voronin, Alexei Gavrilovich Shirokov, Alexandr Iudovich Sokolovsky, Anatoly Alexandrovich Kozyrev, Roza Petrovna Berlizova, Evgeny Mikhailovich Kozlov, Anatoly Alexeevich Boiko, Andrei Nikolaevich Gusev, Olga Borisovna Kazakova, Valery Alexeevich Fugol, Nadezhda Vasilievna Kalinina, Valentina Mikhailovna Emelyanova, Abram Yakovlevich Gluskin, deceased, by Boris Abramovich Gluskin, administrator
  • Carbon-graphite brushes for electric machines and method for manufacturing same
    Patent number: 3996408
    Abstract: The present invention relates to heavy-current electrical engineering, and more particularly to carbon-graphite brushes characterized by high wear resistance and low adhesive capacity of the brush dust, said brushes being intended for operation in commutator machines under moderate or heavy commutation conditions at an operating temperature of the sliding contact from 200.degree. to 250.degree. C, and to a method for manufacturing same.Carbon-graphite brushes for electric machines are made of a material which, after impregnation and heat treatment of the organic impregnation compound contains a dry residue evenly distributed through out the entire bulk volume thereof, the dry residue being a mixture of melamine-glyptal resin with a metal linoleate, in a polymerized state.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: December 7, 1976
    Inventors: Georgy Nikolaevich Fridman, Jury Nikolaevich Vasiliev, Abram Samoilovich Fialkov, Yakov Gilievich Davidovich, Abram Yakovlevich Gluskin, Anatoly Alexandrovich Kozyrev, Roza Petrovna Batyreva, Evgeny Mikhailovich Kozlov, Anatoly Alexeevich Boiko, Olga Borisovna Kazakova, Nadezhda Vasilievna Kalinina, Valentina Mikhailovna Emelyanova, Igor Vyacheslavovich Yartsev