Patents by Inventor Sergei Vasilievich Lakhaev

Sergei Vasilievich Lakhaev 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).

  • Device for heat stabilization of perennial permafrost soils
    Patent number: 9920499
    Abstract: The invention relates to thermal engineering construction, particularly to individual seasonal cooling devices, or temperature stabilizers of soils. The solution is aimed to expand temperature ranges at which temperature stabilizers can be installed and to prevent debris from sealing materials from entering into the well cavity having a coolant. The device contains a temperature stabilizer that functions as a two-phase thermal siphon and includes an aboveground condensing part and underground transporting and vaporizing parts. The temperature stabilizer is placed into the well along with coolant. The well is a hollow cylindrical body with a bottom and a capping element at a top end. The capping element includes a hole for receiving of the temperature stabilizer. The capping element is a detachable stuffing-box seal that includes a support ring installed on a round step in the well, a pressure ring, and thermally expanded graphite rings pressed therebetween.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: March 20, 2018
    Assignees: PUBLIC JOINT STOCK COMPANY “TRANSNEFT”, JOINT STOCK COMPANY “TRANSNEFT SIBERIA”, LIMITED LIABILITY COMPANY “TRANSNEFT RESEARCH AND DEVELOPMENT FOR OIL AND OIL PRODUCTS TRANSPORTATION”
    Inventors: Yury Viktorovich Lisin, Pavel Aleksandrovich Revel-Muroz, Aleksandr Nikolaevich Petelin, Vitaly Ivanovich Surikov, Yurii Borisovich Mikheev, Sergei Vasilievich Lakhaev
  • DEVICE FOR HEAT STABILIZATION OF PERENNIAL PERMAFROST SOILS
    Publication number: 20160340850
    Abstract: The invention relates to thermal engineering construction, particularly to individual seasonal cooling devices, or temperature stabilizers of soils. The solution is aimed to expand temperature ranges at which temperature stabilizers can be installed and to prevent debris from sealing materials from entering into the well cavity having a coolant. The device contains a temperature stabilizer that functions as a two-phase thermal siphon and includes an aboveground condensing part and underground transporting and vaporizing parts. The temperature stabilizer is placed into the well along with coolant. The well is a hollow cylindrical body with a bottom and a capping element at a top end. The capping element includes a hole for receiving of the temperature stabilizer. The capping element is a detachable stuffing-box seal that includes a support ring installed on a round step in the well, a pressure ring, and thermally expanded graphite rings pressed therebetween.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Yury Viktorovich Lisin, Pavel Aleksandrovich Revel-Muroz, Aleksandr Nikolaevich Petelin, Vitaly Ivanovich Surikov, Yurii Borisovich Mikheev, Sergei Vasilievich Lakhaev