Patents by Inventor João Vinicíus de Oliveira Correia

João Vinicíus de Oliveira Correia 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).

  • Gas composition for arc welding
    Patent number: 7071438
    Abstract: The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consisting essentially of argon. The invention can be used in high-speed automated welding to result in significantly improved welding speed, joint fit-up tolerance, and burn-through minimization while maintaining excellent mechanical characteristics.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: July 4, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: William de Abreu Macêdo, Joáo Vinicius de Oliveira Correia
  • Gas composition for arc welding
    Publication number: 20040173593
    Abstract: The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consisting essentially of argon. The invention can be used in high-speed automated welding to result in significantly improved welding speed, joint fit-up tolerance, and burn-through minimization while maintaining excellent mechanical characteristics.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 9, 2004
    Applicant: Praxair Technology, Inc.
    Inventors: William de Abreu Macedo, Joao Vinicius de Oliveira Correia
  • Shielding gas mixture for MIG brazing
    Publication number: 20030178400
    Abstract: The shielding gas mixture is useful for MIG brazing galvanized steel. The gas mixture consists essentially of, by volume percent, about 0.5 to 4 carbon dioxide, about 0.2 to 1 hydrogen, and the balance is argon and incidental impurities.
    Type: Application
    Filed: April 7, 2003
    Publication date: September 25, 2003
    Inventors: Joao Vinicius De Oliveira Correia, Jeferson Frederico Monteiro Costa
  • Shielding gas mixture for MIG brazing
    Patent number: 6570127
    Abstract: The shielding gas mixture is useful for MIG brazing galvanized steel. The gas mixture having by volume percent, about 0.5 to 4 carbon dioxide, about 0.2 to 1 hydrogen, and the balance is argon and incidental impurities.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: May 27, 2003
    Assignee: Praxair Technology, Inc.
    Inventors: João Vinicíus de Oliveira Correia, Jeferson Frederico Monteiro Costa
  • Shielding gas mixture for MIG brazing
    Publication number: 20030019856
    Abstract: The shielding gas mixture is useful for MIG brazing galvanized steel. The gas mixture consists essentially of, by volume percent, about 0.5 to 4 carbon dioxide, about 0.2 to 1 hydrogen, and the balance is argon and incidental impurities.
    Type: Application
    Filed: May 3, 2001
    Publication date: January 30, 2003
    Inventors: Joao Vinicius De Oliveira Correia, Jeferson Frederico Monteiro Costa
  • MIG brazing power source
    Patent number: 6410885
    Abstract: This invention is directed to a MIG brazing power source having a transformer and an inductor. Each of the transformer and inductor has a magnetic core and a coil having specific characteristics.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: June 25, 2002
    Assignee: Praxair Technology, Inc.
    Inventors: João Vinicius De Oliveira Correia, William De Abreu Macedo, Giancarlo Riccardo Cavalli