Patents by Inventor Mark David McDowell

Mark David McDowell 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).

  • Publication number: 20170014933
    Abstract: The invention described herein generally pertains to an apparatus for a welding operation having two or more welding tools and a switching device which directs the current to the appropriate welding device for a welding operation. One or more switch devices having two or more settings can be employed to control which device or devices receive current. Moreover, varying remote control techniques can be utilized to control a welding power source or other operatively coupled devices. Powered devices other than welding tools may be used with the switch in embodiments.
    Type: Application
    Filed: September 2, 2016
    Publication date: January 19, 2017
    Inventors: Edward A. Enyedy, Mark David McDowell
  • Patent number: 9121776
    Abstract: A welding accessory and a system for detecting thermal and/or UV radiation exposure during welding operations are disclosed. The welding accessory may have a surface exposed to thermal and/or UV radiation generated by electric arc welding, a first image visible without exposure to the thermal and/or UV radiation, and a second image formed from either a UV activated dye that is visible only after exposure to UV radiation generated by the electric welding arc or a thermochromic dye that is visible only after exposure to a predetermined level of thermal radiation generated by the welding arc. A system may include either a thermal or UV exposure indicator with a first state and at least a second state, and include either a thermochromic or UV activated dye adapted to provide a reversible or persistent visual indication upon exposure to radiation. The visual indication may include any combination of symbols, logos, images, text, or other decorative or informational designs as desired.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: September 1, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: Bruce John Chantry, Mark David McDowell
  • Publication number: 20130334188
    Abstract: The invention described herein generally pertains to an apparatus for a welding operation having two or more welding tools and a switching device which directs the current to the appropriate welding device for a welding operation. One or more switch devices having two or more settings can be employed to control which device or devices receive current. Moreover, varying remote control techniques can be utilized to control a welding power source or other operatively coupled devices. Powered devices other than welding tools may be used with the switch in embodiments.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: EDWARD A. ENYEDY, MARK DAVID MCDOWELL
  • Patent number: 8284385
    Abstract: A welding accessory and a system for detecting UV radiation exposure during welding operations are disclosed. The welding accessory may have a surface exposed to UV radiation generated by electric arc welding, a first image visible without exposure to the UV radiation, and a second image formed from UV activated dye that is visible only after exposure to UV radiation generated by the electric welding arc. A system may include a UV exposure indicator with a first state and at least a second state, and include UV activated dye adapted to provide a reversible or persistent visual indication upon exposure to UV radiation. The visual indication may include any combination of symbols, logos, images, text, or other decorative or informational designs as desired.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: October 9, 2012
    Assignee: Lincoln Global, Inc.
    Inventors: Bruce John Chantry, Mark David McDowell
  • Publication number: 20110116076
    Abstract: A welding accessory and a system for detecting UV radiation exposure during welding operations are disclosed. The welding accessory may have a surface exposed to UV radiation generated by electric arc welding, a first image visible without exposure to the UV radiation, and a second image formed from UV activated dye that is visible only after exposure to UV radiation generated by the electric welding arc. A system may include a UV exposure indicator with a first state and at least a second state, and include UV activated dye adapted to provide a reversible or persistent visual indication upon exposure to UV radiation. The visual indication may include any combination of symbols, logos, images, text, or other decorative or informational designs as desired.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: Bruce John Chantry, Mark David McDowell