Patents by Inventor Anna Grigorievna Ponkratova

Anna Grigorievna Ponkratova 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).

  • Turbomachine rotor wheel
    Patent number: 4022544
    Abstract: A turbomachine rotor wheel comprising a disk mounting a lower row of blades, and dividing platforms mounting an upper row of blades. Each blade in the lower row comprises at least two members, whereby the section of the blade normal to the blade axis includes at least two parts spaced a distance equal to the width of the blade passage. Therewith, at least two parts of the blade section are attached to the dividing platform thereof.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: May 10, 1977
    Inventors: Anatoly Viktorovich Garkusha, Yakov Isidorovich Shnee, Anna Grigorievna Ponkratova, Viktor Pavlovich Sukhinin, Boris Abramovich Arkadiev, Ljudmila Dmitrievna Moskvina