Patents Examined by Mark Paschal
  • Arc-plasma method for welding metals
    Patent number: 6156994
    Abstract: In a method for plasma-arc welding of metals with a direct or indirect arc, used as a plasma-producing medium is the vapor of a water-containing fluid doped with an organic solvent appearing as oxygen-containing hydrocarbon compounds, in particular, alcohols, and vapors are generated immediately in the plasma-arc torch.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: December 5, 2000
    Inventors: Alexandr Ivanovich Apunevich, Evgeny Ivanovich Titarenko