Patents by Inventor Douglas A. Steyer

Douglas A. Steyer 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).

  • Welding gas compositions and method for use
    Patent number: 11878374
    Abstract: The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: January 23, 2024
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Philip L. Miller, Kevin A. Lyttle, Jeremy B. Neff, Douglas A. Steyer, Keith G. Pierce
  • WELDING GAS COMPOSITIONS AND METHOD FOR USE
    Publication number: 20210268611
    Abstract: The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.
    Type: Application
    Filed: May 12, 2021
    Publication date: September 2, 2021
    Inventors: Philip L. Miller, Kevin A. Lyttle, Jeremy B. Neff, Douglas A. Steyer, Keith G. Pierce
  • Welding gas compositions and method for use
    Patent number: 11040417
    Abstract: The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: June 22, 2021
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Philip L. Miller, Kevin A. Lyttle, Jeremy B. Neff, Douglas A. Steyer, Keith G. Pierce
  • Double wire GMAW welding torch assembly and process
    Patent number: 9186745
    Abstract: A double wire GMAW welding apparatus having a wire spacing adjustable torch assembly is disclosed. The double wire torch assembly has a wire spacing adjusting mechanism, by means of wire spacing adjustment the torch assembly can be used for a non-synchronized metal transfer weld process. The wires remain parallel before, during, after wire spacing adjustment.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: November 17, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Shijun Jia, Douglas Steyer, Xiangui Cao, Mohan Chobe, Tianming He
  • WELDING GAS COMPOSITIONS AND METHOD FOR USE
    Publication number: 20150165565
    Abstract: The present invention relates generally to welding gas compositions used as shielding gases in an electric arc welding process. More particularly, the invention is directed a shielding gas compositions used in gas metal or tungsten metal arc welding processes for welding aluminum or aluminum alloy containing work pieces. The compositions comprise from 200 to less than 400 ppm oxygen; from 200 to less than 400 ppm of a second gas selected from nitrous oxide, nitrogen, and combinations thereof; and the remainder being an inert gas preferably selected from argon, helium, and mixtures thereof.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Inventors: PHILIP L. MILLER, Kevin A. Lyttle, Jeremy B. Neff, Douglas A. Steyer, Keith G. Pierce
  • DOUBLE WIRE GMAW WELDING TORCH ASSEMBLY AND PROCESS
    Publication number: 20120055911
    Abstract: A double wire GMAW welding apparatus having a wire spacing adjustable torch assembly is disclosed. The double wire torch assembly has a wire spacing adjusting mechanism, by means of wire spacing adjustment the torch assembly can be used for a non-synchronized metal transfer weld process. The wires remain parallel before, during, after wire spacing adjustment.
    Type: Application
    Filed: December 16, 2009
    Publication date: March 8, 2012
    Inventors: Shijun Jia, Douglas Steyer, Xiangui Cao, Mohan Chobe, Tianming He