Patents by Inventor Aleksandr Aleksandrovich ANDREEV

Aleksandr Aleksandrovich ANDREEV 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).

  • Side bearing
    Patent number: 11975748
    Abstract: A side bearing for freight bogies of railway transport comprising a base, a plate, a cap, and a resilient element. The base has an annular protruding element, a centering protruding element, and two lateral protruding elements. The lateral protruding elements have J-shaped recesses. The plate has an annular protruding element with lugs, and an aperture for receiving the cap. The cap has an annular protruding element and a centering protruding element. A central opening is provided in the body of the resilient element for positioning on the protruding elements of the base and cap. The annular protruding element of the plate is telescopically mounted inside the annular protruding element of the base, and the cap is mounted inside the aperture of the plate. The lugs of the annular protruding element snap into the J-shaped recesses of the lateral protruding elements.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 7, 2024
    Inventor: Aleksandr Aleksandrovich Andreev
  • HETEROEPITAXIAL STRUCTURE WITH A DIAMOND HEAT SINK
    Publication number: 20230307249
    Abstract: A heteroexpitaxial structure comprises a substrate having a silicon-on-insulator structure. Applied to one surface of a layer of single-crystal silicon having a (111) surface orientation is a layer of polycrystalline diamond. Formed on the other surface of said layer of (111) surface orientation single-crystal silicon of the silicon-on-insulator structure from which layers of a dielectric and another single-crystal silicon layer are first removed is an epitaxial structure of a semiconductor device based on wide-bandgap III-nitrides.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 28, 2023
    Inventors: Maksim Leonidovich ZANAVESKIN, Aleksandr Aleksandrovich ANDREEV, Dmitrij Aleksandrovich MAMICHEV, Igor Anatolyevich CHERNYKH, Ivan Olegovich MAYBORODA, Aleksandr Sergeevich ALTAKHOV, VADIM Stanislavovich SEDOV, Vitalij Ivanovich KONOV
  • SIDE BEARING
    Publication number: 20210324910
    Abstract: A side bearing for freight bogies of railway transport comprising a base, a plate, a cap, and a resilient element. The base has an annular protruding element, a centering protruding element, and two lateral protruding elements. The lateral protruding elements have J-shaped recesses. The plate has an annular protruding element with lugs, and an aperture for receiving the cap. The cap has an annular protruding element and a centering protruding element. A central opening is provided in the body of the resilient element for positioning on the protruding elements of the base and cap. The annular protruding element of the plate is telescopically mounted inside the annular protruding element of the base, and the cap is mounted inside the aperture of the plate. The lugs of the annular protruding element snap into the J-shaped recesses of the lateral protruding elements.
    Type: Application
    Filed: November 22, 2019
    Publication date: October 21, 2021
    Inventor: Aleksandr Aleksandrovich ANDREEV