Patents by Inventor Vasiliy I. Us

Vasiliy I. Us 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 of producing pipes with crack arresters
    Patent number: 4711387
    Abstract: Disclosed is a method of producing crack arrester consisting in that a hollow cylindrical blank (1) with a multi-layer wall and a discontinuity (2) provided at least in one of the layers is made so that the diameter and wall thickness thereof are smaller and greater, respectively, than the specified final dimensions of the crack arrester (5) and the blank (1) is then heated and rolled on a ring-rolling mill (4) uniformly over the entire length to the final dimensions of the crack arrester (5) so that the layers fuse to each other in the course of rolling.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: December 8, 1987
    Inventors: Boris E. Paton, Boris I. Medovar, Semen M. Biletsky, Vladimir Y. Saenko, Vasiliy I. Us, Alisa I. Krendeleva, Jury P. Barvinko, Lev B. Medovar, Nikolai B. Pivovarsky, Nikolai A. Astafiev