Patents by Inventor Lev Medovar

Lev Medovar 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).

  • Patent number: 6913066
    Abstract: A method for producing metallic ingots or strands, especially from steel and Ni and Co based alloys, by melting self-consuming electrodes in an electroconductive slag bath, using an alternating current or a direct current in a short water-cooled mold which opens downwards, via which an electric contact can be produced for the slag bath. The supplied melt current is passed via the consumable electrode, the bottom plate, the remelt ingot and the melting bath, and optionally at least one electroconductive element of the mold, to the slag bath. The current distribution can be regulated in a controlled manner and the return circuit of the melt current passes back via at least one other electroconductive element of the mold, which is electrically isolated in relation to a first part of the mold which forms the remelt ingot. The proportion of the entire melt current supplied via the bottom plate is selected between 0 and 100%.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: July 5, 2005
    Assignee: Inteco Internationale Technische Beratung Ges. mbH
    Inventors: Wolfgang Holzgruber, Harald Holzgruber, Lev Medovar, Izrail Lantsman
  • Patent number: 6853672
    Abstract: A method for producing metal ingots or billets, especially from steels and Ni- and Co- base alloys, by melting off consumable electrode in an electroconductive slag bath using alternating or direct current in a short, downwardly opening, water-cooled mould through which a current contact can be established with the slag bath. The melting current is introduced into the slag bath through the consumable electrode and through the mould in a controlled manner in terms of regulating the distribution of the current between the electrode and the mould; and is conducted back through the mould and the block and the base plate at option; the division of the currents being adjustable in a controlled manner. The proportion of the overall melting current delivered that is delivered via the consumable electrode can be chosen from between 0 and 100%.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: February 8, 2005
    Assignee: Inteco Internationale Technische Beratung Ges.mbH
    Inventors: Wolfgang Holzgruber, Harald Holzgruber, Lev Medovar, Lantsman Izrail
  • Publication number: 20040040688
    Abstract: The invention relates to a method for producing metallic ingots or strands, especially from steel and Ni and Co based alloys, by melting self-consuming electrodes in an electroconductive slag bath, using an alternating current or a direct current in a short water-cooled mould which opens downwards, via which an electric contact can be produced for the slag bath. The supplied melt current is passed via the consumable electrode, the bottom plate, the remelt ingot and the melting bath, and optionally at least one electroconductive element of the mould, to the slag bath. The current distribution can be regulated in a controlled manner and the return circuit of the melt current passes back via at least one other electroconductive element of the mould, which is electrically isolated in relation to a first part of the mould which forms the remelt ingot. The proportion of the entire melt current supplied via the bottom plate is selected between 0 and 100%.
    Type: Application
    Filed: May 14, 2003
    Publication date: March 4, 2004
    Inventors: Wolfgang Holzgruber, Harald Holzgruber, Lev Medovar, Izrail Lantsman
  • Publication number: 20040026380
    Abstract: A method for producing metal ingots or billets, especially from steels and Ni- and Co-base alloys, by melting off consumable electrode in an electroconductive slag bath using alternating or direct current in a short, downwardly opening, water-cooled mould through which a current contact can be established with the slag bath. The melting current is introduced into the slag bath through the consumable electrode and through the mould in a controlled manner in terms of regulating the distribution of the current between the electrode and the mould; and is conducted back through the mould and the block and the base plate at option; the division of the currents being adjustable in a controlled manner. The proportion of the overall melting current delivered that is delivered via the consumable electrode can be chosen from between 0 and 100%.
    Type: Application
    Filed: May 8, 2003
    Publication date: February 12, 2004
    Inventors: Wolfgang Holzgruber, Harald Holzgruber, Lev Medovar, Lantsman Izrail