Patents by Inventor Alexei V. Andrianov

Alexei V. Andrianov 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).

  • Pipeline, a method of laying the pipeline and a device for effecting said method
    Patent number: 4758115
    Abstract: The claimed pipeline is made of coaxially arranged envelopes rigidly connected to each other, in which case the internal envelope is made of nonhermetic layers and hermetically sealed layers (3, 4) and the whole set of envelopes is impregnated with a binder (5) and forms a monolithic structure, the external envelope (1) being made of a ground (2).The method consists in forming hole (11) in the ground and insertion into the ground of the nonhermetic layers and hermetically sealed layers (3, 4) of the internal envelope, impregnation of its ground (2) with a binder (5) and followed by expansion and densing of the envelopes by producing an excess pressure of the working medium in the pipeline (9).
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: July 19, 1988
    Assignee: Trest "Juzhvodoprovod"
    Inventors: Viktor V. Shishkin, Nikolai F. Kryazhevskikh, Viktor N. Oleinik, Alexei V. Andrianov, Yaroslav P. Sushkov