Patents by Inventor Bernard Dubi

Bernard Dubi 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: 6068468
    Abstract: A burner assembly having improved flame length and shape control is presented, which includes in exemplary embodiments at least one fuel fluid inlet and at least one oxidant fluid inlet, means for transporting the fuel fluid from the fuel inlet to a plurality of fuel outlets-, the fuel fluid leaving the fuel outlets in fuel streams that are injected into a combustion chamber, means for transporting the oxidant fluid from the oxidant inlets to at least one oxidant outlet, the oxidant fluid leaving the oxidant outlets in oxidant fluid streams that are injected into the combustion chamber, with the fuel and oxidant outlets being physically separated, and geometrically arranged in order to impart to the fuel fluid streams and the oxidant fluid streams angles and velocities that allow combustion of the fuel fluid with the oxidant in a stable, wide, and luminous flame. Alternatively, injectors may be used alone or with the refractory block to inject oxidant and fuel gases.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: May 30, 2000
    Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme Pour l'Etude et, l'Exploitation de Procedes Georges Claude
    Inventors: Louis C. Philippe, Harley A. Borders, Kenneth A. Mulderink, Pierre Bodelin, Patrick Recourt, Lahcen Ougarane, Remi Tsiava, Bernard Dubi, Laurent Rio
  • Patent number: 5984667
    Abstract: A burner assembly having improved flame length and shape control is presented, which includes in exemplary embodiments at least one fuel fluid inlet and at least one oxidant fluid inlet, means for transporting the fuel fluid from the fuel inlet to a plurality of fuel outlets, the fuel fluid leaving the fuel outlets in fuel streams that are injected into a combustion chamber, means for transporting the oxidant fluid from the oxidant inlets to at least one oxidant outlet, the oxidant fluid leaving the oxidant outlets in oxidant fluid streams that are injected into the combustion chamber, with the fuel and oxidant outlets being physically separated, and geometrically arranged in order to impart to the fuel fluid streams and the oxidant fluid streams angles and velocities that allow combustion of the fuel fluid with the oxidant in a stable, wide, and luminous flame. Alternatively, injectors may be used alone or with the refractory block to inject oxidant and fuel gases.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: November 16, 1999
    Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Louis C. Philippe, Harley A. Borders, Kenneth A. Mulderink, Pierre Bodelin, Patrick Recourt, Lahoen Ougarane, Remi Tsiava, Bernard Dubi, Laurent Rio
  • Patent number: 4494923
    Abstract: The invention relates to the electric ignition of oxy-fuel burners, as well as to the detection of the flame of these burners.A spark is induced between an electrode and the body of the burner, the said electrode being situated in the area of the recirculation flows having a relative proportion of oxygen and fuel comprised between the lower and upper limits of flammability, close to the said upper limit.The invention is applicable to burners supplied with a gaseous fuel.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: January 22, 1985
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Paul Guillaume, Luc Vezin, Bernard Dubi