Patents by Inventor Igor I. Dobkin

Igor I. Dobkin 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: 4435886
    Abstract: A pipe-welding mill for production of coiled pipes from coiled strips comprises a coil preparation section including unwinders disposed in a manner allowing displacement thereof in a direction perpendicular to the direction of pipe movement, and a magazine including a reel with set-up coils, the mill further including a strip coupler, shaping, welding, and drawing stands, a coiling arrangement with bending rollers, and cutting and receiving arrangements, the components being successively installed in the direction of pipe movement. Guide or receiving rollers of the receiving arrangement are located on a platform installed in a manner allowing the platform tilt with respect to the axes of the bending rollers, the receiving rollers being connected to the output shaft of the drive of the bending rollers through a universal joint.
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: March 13, 1984
    Assignee: Gosudarstvenny Nauchnoissledovatelsky, Proektny I Konstruktorsky Institut Splavov I Obrabotki Tsvetnykh Metallov "Giprotsvetmetobrabotka"
    Inventors: Jury F. Shevakin, Igor I. Dobkin, Efim M. Donskoi, Grigory L. Manov, Vasily V. Zhdanov, Elena S. Berger, Valery M. Popov, Alexei A. Pavlov, Rashid Z. Akchurin
  • Patent number: 4412438
    Abstract: A pipe bending machine has a pipe feed rate setter. A bending unit has a bending roller and a drive for displacing the bending roller in the plane of bending, and a follow-up roller. The follow-up roller is arranged for engagement with the pipe after the pipe has been subjected to the action of the bending roller and is secured to one arm of a two-arm lever having a pivot axis which intersects the center line of the incoming pipe. The other arm of the lever carries a movable contact of the bending roller drive. The contact alternately engages two stationary contacts of the drive.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: November 1, 1983
    Assignee: Gosudarstvenny Nauchnoissledovatelsky, Proektny I Konstruktorsky Institut Splavov I Obrabotki Tsvetnykh Metallov "Giprotsvetmetobrabotka"
    Inventors: Vladimir M. Tjushevsky, Vladimir E. Ermakov, Fikrat S. O. Seidaliev, Gennady A. Sjusin, Igor I. Dobkin, Jury V. Krasovsky