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Alexei Gavrilovich Shirokov

Jury Nikolaevich Vasiliev

Georgy Nikolaevich Fridman

Nadezhda Vasilievna Kalinina

Valentina Mikhailovna Emelyanova

Yakov Gilievich Davidovich

Anatoly Alexandrovich Kozyrev

Olga Borisovna Kazakova

Nikolai Sergeevich Voronin

Anatoly Alexeevich Boiko

Evgeny Mikhailovich Kozlov

Abram Samoilovich Fialkov

Andrei Nikolaevich Gusev

Valery Alexeevich Fugol

Abram Yakovlevich Gluskin, Deceased

By Boris Gluskin, Administrator

Vladimir Petrovich Sosedov

Alexandr Andreevich Tarasov

Alexandr Iudovich Sokolovsky

Roza Petrovna Berlizova

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.

Carbon-graphite material for brushes of electric machines and method for

Growing community of inventors

Moscow, Russia

Alexei Gavrilovich Shirokov