Patents by Inventor Alexandr M. Nikiforov

Alexandr M. Nikiforov 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 pilger rolling of tubes
    Patent number: 4203309
    Abstract: The method resides in feeding a billet in portions into pilger rolls to be worked therein on a mandrel. The billet being positively turned about the rolling axis both in one direction and in the opposite direction in the course of deformation thereof and in the off-contact time when the billet is not engaged by the rolls.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: May 20, 1980
    Inventors: Vladimir E. Ermakov, Viktor B. Makarov, Fikrat S. O. Seidaliev, Alexandr M. Nikiforov, Alexandr V. Bushev, July K. Dozortsev