Patents by Inventor Boris V. Lavrushko

Boris V. Lavrushko 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).

  • Arrangement for patching off troublesome zones in a well
    Patent number: 5083608
    Abstract: The arrangement for patching off troublesome zones in a well has a string of profile pipes with cylindrical portions at their ends, and a device for setting the string of profile pipes in a well, mounted for longitudinal reciprocation inside the string of profile pipes.Said device includes a reamer of the cylindrical portions of the profile pipes, positioned inside the uppermost cylindrical portion of the string of profile pipes, rigidly connected with an expander positioned above the string of profile pipes and having a housing with expanding elements mounted thereon.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: January 28, 1992
    Inventors: Gabdrashit S. Abdrakhmanov, Rashid A. Uteshev, Rustam K. Ibatullin, Izil G. Jusupov, Anatoly V. Perov, Albert G. Zainullin, Konstantin V. Meling, Boris V. Lavrushko, Ilmas F. Mingazov, Almaz A. Mukhametshin, Vitaly P. Filippov, Khalim A. Asfandiyarov, Tatyana A. Mikhailova, Vladimir S. Parshin, Leonid V. Junyshev, Alexandr A. Puzanov, Alexandr P. Balandin