Patents by Inventor Mitchell Warchol

Mitchell Warchol 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).

  • Method of and system for monitoring a quality of a weld
    Patent number: 12654261
    Abstract: A method of monitoring a quality of a weld includes collecting a first sample of a shielding gas flowing between a gas source and a welding device; analyzing the first sample to determine a shielding gas composition and thereby monitor a quality of the shielding gas; and forming the weld on a workpiece with the welding device to generate an evolution product of the weld. The method also includes, after collecting the first sample, collecting a second sample of the evolution product; and analyzing the second sample to determine an evolution product composition and thereby monitor the quality of the weld. A system includes the welding device; the gas source; an analyzer disposed between the welding device and the gas source; a first sampling device for collecting the first sample; and a second sampling device configured for collecting the second sample.
    Type: Grant
    Filed: December 10, 2024
    Date of Patent: June 16, 2026
    Assignee: GM Global Technology Operations LLC
    Inventors: Debejyo Chakraborty, Preston Hart, Mitchell Warchol, Spyros P. Mellas
  • METHOD OF AND SYSTEM FOR MONITORING A QUALITY OF A WELD
    Publication number: 20260158596
    Abstract: A method of monitoring a quality of a weld includes collecting a first sample of a shielding gas flowing between a gas source and a welding device; analyzing the first sample to determine a shielding gas composition and thereby monitor a quality of the shielding gas; and forming the weld on a workpiece with the welding device to generate an evolution product of the weld. The method also includes, after collecting the first sample, collecting a second sample of the evolution product; and analyzing the second sample to determine an evolution product composition and thereby monitor the quality of the weld. A system includes the welding device; the gas source; an analyzer disposed between the welding device and the gas source; a first sampling device for collecting the first sample; and a second sampling device configured for collecting the second sample.
    Type: Application
    Filed: December 10, 2024
    Publication date: June 11, 2026
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Debejyo Chakraborty, Preston Hart, Mitchell Warchol, Spyros P. Mellas