Patents by Inventor Maksim O. Tzonevski

Maksim O. Tzonevski 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).

  • Graphitic electrode with protective coating
    Patent number: 4750187
    Abstract: The protective coating consists of three layers. As alloying additives in the first and second layer or only in the second layer are used, nickel and iron or their oxides whereby the nickel content is from 0.05 to 0.95% and the iron content is, respectively, from 0.1 to 15% with regard to the total amount of aluminum. Both layers are submitted to heat treatment with surface density of the heat flow from 8 to 16.10.sup.6 W/m.sup.2. The third layer consists of aluminum with technical grade purity.The thus described graphitic electrodes are used in arc furnaces.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: June 7, 1988
    Assignee: N P P PO Elektrotermia
    Inventors: Vassil G. Peev, Maksim O. Tzonevski