Patents by Inventor Gerald D. Uttrachi

Gerald D. Uttrachi 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: 4645903
    Abstract: The gas metal arc welding process of the present invention extends the axial spray metal transfer range with a non rotating arc from 10 to 25 lbs/hr using an electrode wire diameter between 0.035 to 0.052 inches. The process is carried out by maintaining an electrode extension of between 3/4 to 11/4 inches with a three component shielding gas mixture consisting essentially of argon and oxygen in combination with carbon dioxide or carbon monoxide in a volume proportion of oxygen 1-2% carbon dioxide 8-15%, balance argon. The arc voltage is maintained in a range of between 29 and 40 volts.
    Type: Grant
    Filed: July 5, 1984
    Date of Patent: February 24, 1987
    Assignee: Union Carbide Corporation
    Inventors: Joseph De Vito, Kevin A. Lyttle, Ronald D. Sutton, Alan J. Westendorf, Nils E. Larson, Gerald D. Uttrachi
  • Patent number: 4256949
    Abstract: A combination of welding wire and welding flux for submerged arc welding of high strength low alloy pipe which require low temperature impact properties of at least 30 ft./lb. at -13.degree. F. The wire consists essentially of 2.0 to 3.5 wt. % manganese; 0.01 wt. % to 1.5 wt. % silicon; 0.05 to 0.15 wt. % carbon; balance iron with the proviso that when manganese is greater than 2.5 up to 3.5 wt. % the silicon content is between 0.01 wt. % to 1.5 wt. % and when the manganese content is between 2.0 to 2.5 wt. % the silicon content is greater than 0.3 wt. % up to 1.5 wt. %. The flux used with these wires is preferably acidic in nature.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: March 17, 1981
    Assignee: Union Carbide Corporation
    Inventors: Stephen F. Baumann, Masahiro Nakabayashi, Gerald D. Uttrachi, Thomas L. Coless, Ernest N. Levine