Patents by Inventor Vladimir N. Shpektorov

Vladimir N. Shpektorov 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).

  • Rotary trench excavator
    Patent number: 4976051
    Abstract: A rotary trench excavator comprising a prime mover (1) pivotably connected to a movable frame (2) carrying a working member having the form of a system of drive rotors (9 to 11). To drive each such rotor (9 to 11), its interior accommodates a support frame (6) with support and guide rollers (7 and 8), and a drive mechanism. In order to ensure turning of each rotor (9 to 11) 180.degree., or of the entire system of rotors, there is provided an additional frame (4) connected to the frame (2) of the excavator and to each of the rotors (9 to 11) by way of detachable flanges (13 to 26).
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: December 11, 1990
    Assignee: Spetsialnoe Konstruktorskoe Buro "Gazstroimashina"
    Inventors: Evgeny P. Kovalev, Alexandr M. Sushkin, June V. Trubakov, Vladimir N. Shpektorov, Iosif N. Shpektorov