Patents by Inventor John E. Fitch

John E. Fitch 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: 20240361281
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system distinguishes between weave types that exhibit similar planar stiffness behaviors, but which produce different failure mechanisms. Individual ply information then is used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties are then used to generate a probabilistic failure envelope for the composite laminate.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Applicant: Verifi Technologies, LLC
    Inventors: David A. JACK, John E. FITCH, Theresa VO
  • Publication number: 20240361280
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments distinguish between weave types that exhibit similar planar stiffness behaviors, but produce different failure mechanisms. Individual ply information is then used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties are then used to generate a probabilistic failure envelope for the composite laminate. In some embodiments, ply stack type and sequence are also determined for a curved composite laminate using the disclosed embodiments by adding a rotational stage.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Applicant: Verifi Technologies, LLC
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Patent number: 12050204
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system distinguishes between weave types that exhibit similar planar stiffness behaviors, but which produce different failure mechanisms. Individual ply information then is used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties are then used to generate a probabilistic failure envelope for the composite laminate.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: July 30, 2024
    Assignee: VERIFI TECHNOLOGIES, LLC
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Patent number: 12050203
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments distinguish between weave types that exhibit similar planar stiffness behaviors, but produce different failure mechanisms. Individual ply information is then used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties are then used to generate a probabilistic failure envelope for the composite laminate. In some embodiments, ply stack type and sequence are also determined for a curved composite laminate using the disclosed embodiments by adding a rotational stage.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: July 30, 2024
    Assignee: VERIFI TECHNOLOGIES, LLC
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Publication number: 20220412924
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system distinguishes between weave types that exhibit similar planar stiffness behaviors, but which produce different failure mechanisms. Individual ply information then is used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties are then used to generate a probabilistic failure envelope for the composite laminate.
    Type: Application
    Filed: August 30, 2022
    Publication date: December 29, 2022
    Applicant: Verifi Technologies, LLC
    Inventors: David A. JACK, John E. FITCH, Theresa VO
  • Publication number: 20220412925
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments distinguish between weave types that exhibit similar planar stiffness behaviors, but produce different failure mechanisms. Individual ply information is then used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties are then used to generate a probabilistic failure envelope for the composite laminate. In some embodiments, ply stack type and sequence are also determined for a curved composite laminate using the disclosed embodiments by adding a rotational stage.
    Type: Application
    Filed: August 30, 2022
    Publication date: December 29, 2022
    Applicant: Verifi Technologies, LLC
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Patent number: 11442045
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: September 13, 2022
    Assignee: VERIFI TECHNOLOGIES, LLC
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Patent number: 11442044
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate. In some embodiments, ply stack type and sequence may also be determined for a curved composite laminate using the disclosed embodiments by adding a rotational stage.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: September 13, 2022
    Assignee: VERIFI TECHNOLOGIES, LLC
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Publication number: 20210302373
    Abstract: The present disclosure provides a system and method for real-time visualization of a material during ultrasonic non-destructive testing. The system includes a graphical user interface (GUI) capable of showing a three-dimensional (3-D) image of a composite laminate constructed of a series of two-dimensional (2-D) cross sections. The GUI is capable of displaying the 3-D image as each additional 2-D cross section is scanned by an ultrasonic testing apparatus in real time or near real time, including probable defect regions that contain a flaw such as a hole, crack, wrinkle, or foreign object within the composite. Furthermore, in one embodiment, the system includes an artificial intelligence capable of highlighting defect areas within the 3-D image in real time or near real time and providing data regarding each defect area, such as the depth, size, and/or type of each defect.
    Type: Application
    Filed: January 14, 2021
    Publication date: September 30, 2021
    Applicant: Verifi Technologies, LLC
    Inventors: David A. Jack, John E. Fitch, Nathaniel J. Blackman
  • Publication number: 20200393421
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate. In some embodiments, ply stack type and sequence may also be determined for a curved composite laminate using the disclosed embodiments by adding a rotational stage.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Inventors: David A. JACK, John E. FITCH, Theresa VO, Caleb Heimsoth, Sarah Stair
  • Publication number: 20200333297
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 22, 2020
    Applicant: Baylor University
    Inventors: David A. JACK, John E. FITCH, Theresa VO
  • Patent number: 10761067
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures, including structures with surfaces that are curved in two and three dimensions. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 1, 2020
    Assignee: Baylor University
    Inventors: David A. Jack, John E. Fitch, Theresa Vo, Caleb Heimsoth, Sarah Stair
  • Patent number: 10697941
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: June 30, 2020
    Assignee: BAYLOR UNIVERSITY
    Inventors: David A. Jack, John E. Fitch, Theresa Vo
  • Publication number: 20160291560
    Abstract: An autonomous system for managing power distribution to an electrically-powered device that includes a power controller module that includes power input and power output abilities and operably connected power switching abilities, wherein the power switching is configured for actuation by an integral power management module operably connected thereto, the integral power management module including integral actuation signal detection and actuation abilities configured for, in accordance with commands and operational parameters, upon detection of an actuation signal, actuation the integral power switching to alter power output through the power output from a first output level to a second output level.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 6, 2016
    Inventors: John E. Fitch, James M. Steward
  • Publication number: 20150377839
    Abstract: Embodiments are disclosed for characterizing and quantifying composite laminate structures, including structures with surfaces that are curved in two and three dimensions. The embodiments take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The embodiments can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Inventors: David A. JACK, John E. FITCH, Theresa VO, Caleb Heimsoth, Sarah Stair
  • Publication number: 20150046098
    Abstract: Method and system are disclosed for characterizing and quantifying composite laminate structures. The method and system take a composite laminate of unknown ply stack composition and sequence and determine various information about the individual plies, such as ply stack, orientation, microstructure, and type. The method and system can distinguish between weave types that may exhibit similar planar stiffness behaviors, but would produce different failure mechanisms. Individual ply information may then be used to derive the laminate bulk properties from externally provided constitutive properties of the fiber and matrix, including extensional stiffness, bending-extension coupling stiffness, bending stiffness, and the like. The laminate bulk properties may then be used to generate a probabilistic failure envelope for the composite laminate.
    Type: Application
    Filed: March 20, 2013
    Publication date: February 12, 2015
    Applicant: BAYLOR UNIVERSITY
    Inventors: David A. Jack, John E. Fitch, Theresa Vo