Patents by Inventor Jacob B. Guelff

Jacob B. Guelff 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).

  • Ground fault circuit interrupter (GFCI) devices, systems, and methods
    Patent number: 12266917
    Abstract: A ground fault circuit interrupter (GFCI) can include a current transformer (CT) comprising a single core, a first winding wound around the single core, and a second winding wound around the single core. The GFCI can include a ground fault (GF) detection module operatively connected to the first winding to receive signals from the first winding and configured to determine whether a line-to-ground fault exists. The GFCI can also include a GN stimulus operatively connected to the second winding to provide a GN stimulus signal to the second winding. The GFCI can also include a grounded neutral (GN) detection module operatively connected to second winding and configured to receive signals from the second winding to determine whether a neutral-to-ground fault exists.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: April 1, 2025
    Assignee: Schneider Electric USA, Inc.
    Inventors: Kenneth Riehl, Joseph Hall, Juan Ignacio Melecio, Jeremy D. Schroeder, Jacob B. Guelff
  • GROUND FAULT CIRCUIT INTERRUPTER (GFCI) DEVICES, SYSTEMS, AND METHODS
    Publication number: 20240222954
    Abstract: A ground fault circuit interrupter (GFCI) can include a current transformer (CT) comprising a single core, a first winding wound around the single core, and a second winding wound around the single core. The GFCI can include a ground fault (GF) detection module operatively connected to the first winding to receive signals from the first winding and configured to determine whether a line-to-ground fault exists. The GFCI can also include a GN stimulus operatively connected to the second winding to provide a GN stimulus signal to the second winding. The GFCI can also include a grounded neutral (GN) detection module operatively connected to second winding and configured to receive signals from the second winding to determine whether a neutral-to-ground fault exists.
    Type: Application
    Filed: January 24, 2023
    Publication date: July 4, 2024
    Applicant: Schneider Electric USA, Inc.
    Inventors: Kenneth Riehl, Joseph Hall, Juan Ignacio Melecio, Jeremy D. Schroeder, Jacob B. Guelff
  • GROUND FAULT CIRCUIT INTERRUPTER (GFCI) DEVICES, SYSTEMS, AND METHODS
    Publication number: 20240222955
    Abstract: A ground fault circuit interrupter (GFCI) can include a current transformer (CT) comprising a single core, a first winding wound around the single core, and a second winding wound around the single core. The GFCI can include a ground fault (GF) detection module operatively connected to the first winding to receive signals from the first winding and configured to determine whether a line-to-ground fault exists. The GFCI can also include a GN stimulus operatively connected to the second winding to provide a GN stimulus signal to the second winding. The GFCI can also include a grounded neutral (GN) detection module operatively connected to second winding and configured to receive signals from the second winding to determine whether a neutral-to-ground fault exists.
    Type: Application
    Filed: April 24, 2023
    Publication date: July 4, 2024
    Applicant: Schneider Electric USA, Inc.
    Inventors: Kenneth Riehl, Joseph Hall, Juan Ignacio Melecio, Jeremy D. Schroeder, Jacob B. Guelff