Patents by Inventor Alexandr V. Sagirov

Alexandr V. Sagirov 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 fabricating light-weight sections
    Patent number: 4896818
    Abstract: A method of fabricating light-weight sections consisting in uncoiling a strip (20), levelling it, slitting it in a zigzag course into at least two members (5, 6, 7), changing the path of travel of at least one member, matching the members (5, 6, 7) at the edges in the same plane so as to obtain units with an alternating cross-sectional area, and welding units together.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: January 30, 1990
    Assignee: Opytnoe Proizvodsyvenno- Tekhnicheskoe Predpriyatie "Energotekhprom"
    Inventors: Lev Z. Shteinbok, Igor L. Shteinbok, Alexandr V. Sagirov, Leonid S. Davydov