Patents by Inventor Raisa Alexeevna Dvorikova

Raisa Alexeevna Dvorikova 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).

  • Antifriction polymer material
    Patent number: 4064097
    Abstract: An antifriction polymer material which is a product of hardening of a composition consisting of a filler in amounts of 10-95 wt.% and a binder in amounts of 5-90 wt.%, a mixture of polyphenylenes being used as a binder containing ketal and/or acetyl groups of the general formula ##STR1## R.sub.3 and R.sub.4 being identical or different, the fraction with n =2-15 amounting to 4-20% of the binder weight.The proposed antifriction polymer material possesses high heat and thermal resistance of about 350.degree.C and 450.degree.C, respectively, which ensures a stable friction coefficient and a high wear resistance of the material at temperatures of up to 320.degree. C.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: December 20, 1977
    Inventors: Vasily Vladimirovich Korshak, Irina Alexandrovna Gribova, Alexandr Petrovich Krasnov, Mikhail Mikhailovich Teplyakov, Georgy Vasilievich Elerdashvili, Galina Ilinichna Gureeva, Valery Panteleimonovich Chebotarev, Raisa Alexeevna Dvorikova, Vladimir Alexandrovich Sergeev, Dali Mitrofanovna Kakauridze