Patents by Inventor Sergei Rafaelyevich Kolesnikov

Sergei Rafaelyevich Kolesnikov 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).

  • Patent number: 6183163
    Abstract: A method and apparatus for laying a pipeline. Working and receiving pits are dug out. An active working member is dropped into the working pit at a preselected depth. The active working member is fixed to a vertical knife of a power mechanism. Polyethylene pipeline is secured to an end part of the active working member. Then the power mechanism is energized and simultaneously horizontal pulling forces of the power mechanism are applied to the vertical knife. The active working member may be a drill head with different nozzles (bits) connected with a mud supply unit by a hose passing through a hollow portion of the vertical knife. On a non-working end of the active member the pipeline is fixed by an adapter.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: February 6, 2001
    Inventors: Vladimir Nikolaevich Nikiforov, Rafael Alexandrovich Kolesnikov, Sergei Rafaelyevich Kolesnikov