Patents by Inventor Zdenek Habrman

Zdenek Habrman 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 and apparatus for protection of metal heating electrodes of melting furnaces by DC current
    Patent number: 3984612
    Abstract: Metal heating electrodes of melting furnaces are protected against reduction of ions from a silicate melt by superposition of DC current on the AC heating current and by forming and maintaining on these electrodes a passivation layer with a higher electric specific resistance than the resistance of the melt.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: October 5, 1976
    Assignee: Statni Vyzkumny Ustav Sklarsky
    Inventors: Vaclav Susser, Zdenek Habrman, Ivan Lade