Patents by Inventor Jacob Thomas Mahaffey

Jacob Thomas Mahaffey 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).

  • Thermographic Phosphor Digital Image Correlation
    Publication number: 20230401687
    Abstract: The invention advances the ratio method of phosphor thermography using two machine vision cameras for full-field temperature measurements of a solid surface. As an example, algorithms from digital image correlation (DIC) can be used to determine the stereoscopic imaging system intrinsic and extrinsic parameters, and accurately register material points on the sample to subpixel locations in each image with 0.07 px or better accuracy. A phosphor calibration sample fabricated using aerosol deposition can be used for in situ determination of the temperature-versus-intensity ratio relationship. The full calibration methodology and several improvements on two-color phosphor thermography open the door for full-field temperature measurements in dynamic tests with deforming test specimens.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 14, 2023
    Inventors: Caroline Winters, Kathryn N. Gabet Hoffmeister, Elizabeth M. C. Jones, Amanda Jones, Jacob Thomas Mahaffey, Shannon Elizabeth Murray, Michael M. Montoya, Wendy Flores-Brito
  • Aerosol Deposition of Thermographic Phosphor Coatings
    Publication number: 20220362802
    Abstract: Aerosol-deposited thermographic phosphors can be used for non-contact, two-dimensional temperature sensing in extreme environments. The fast response time and thermal/environmental stability of doped ceramic powders allow for temperature measurements up to the melting point of the phosphor on hot surfaces, such as rapidly rotating turbine components and combustors.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 17, 2022
    Inventors: Jacob Thomas Mahaffey, Kathryn N. Gabet Hoffmeister, Andrew Vackel, Wendy Flores-Brito, Deidre Hirschfeld
  • Aerosol Deposition of Thermographic Phosphor Coatings
    Publication number: 20200398305
    Abstract: Aerosol-deposited thermographic phosphors can be used for non-contact, two-dimensional temperature sensing in extreme environments. The fast response time and thermal/environmental stability of doped ceramic powders allow for temperature measurements up to the melting point of the phosphor on hot surfaces, such as rapidly rotating turbine components and combustors.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 24, 2020
    Inventors: Jacob Thomas Mahaffey, Kathryn N. Gabet Hoffmeister, Andrew Vackel, Wendy Flores-Brito, Deidre Hirschfeld