Patents by Inventor Vladimir I. Timofeev

Vladimir I. Timofeev 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).

  • Method for making sucker rods
    Patent number: 4796799
    Abstract: A method for making sucker rods comprises pressure-welding of the central rod-body blank with the rod-end blanks made from different materials, and upsetting of the end heads (8 and 9) from the welded sucker-rod blank. The length of the rod-end blanks is so selected that the weld joints (6, 7) be established, after the upsetting procedure, across the maximum cross-section of the sucker-rod heads (8 and 9).
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: January 10, 1989
    Assignee: Azerbaidzhansky Nauchno-Issledovatelsky I Proektno-Konstruktorsky Institut Neftyanogo Mashinostroenia
    Inventors: Artur T. O. Rasi-Zade, Nariman G. O. Kurbanov, Pavel M. Sutovsky, Talat M. O. Shikhlinsky, Khalid T. Kakhramanov, Avraam M. Rabinovich, Islam K. O. Karaev, Vladimir I. Timofeev, Oktai I. O. Ibragimov, deceased