Patents by Inventor Kevin Sigmund

Kevin Sigmund 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).

  • Distributed active mechanical waveguide sensor driven at multiple frequencies and including frequency-dependent reflectors
    Patent number: 11686627
    Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be driven at multiple resonant frequencies to sense environmental conditions, e.g., using tracking of a phase derivative. In addition, frequency-dependent reflectors may be incorporated into an active mechanical waveguide, and a drive frequency may be selected to render the frequency-dependent reflectors substantially transparent.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: June 27, 2023
    Assignee: ETEGENT TECHNOLOGIES LTD.
    Inventors: Richard A. Roth, II, Stuart J. Shelley, Kevin Sigmund, Oleg Lobkis
  • Damage detection for mechanical waveguide sensor
    Patent number: 11473981
    Abstract: A sensor with a mechanical waveguide may be characterized using test ultrasonic signals to generate a baseline signature, and the baseline signature may later be used to detect faults in the sensor.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: October 18, 2022
    Assignee: ETEGENT TECHNOLOGIES LTD.
    Inventors: Richard A. Roth, II, Stuart J. Shelley, Kevin Sigmund, Oleg Lobkis
  • DISTRIBUTED ACTIVE MECHANICAL WAVEGUIDE SENSOR DRIVEN AT MULTIPLE FREQUENCIES AND INCLUDING FREQUENCY-DEPENDENT REFLECTORS
    Publication number: 20210132008
    Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be driven at multiple resonant frequencies to sense environmental conditions, e.g., using tracking of a phase derivative. In addition, frequency-dependent reflectors may be incorporated into an active mechanical waveguide, and a drive frequency may be selected to render the frequency-dependent reflectors substantially transparent.
    Type: Application
    Filed: April 10, 2018
    Publication date: May 6, 2021
    Inventors: Richard A. Roth, II, Stuart J. Shelley, Kevin Sigmund, Oleg Lobkis
  • DAMAGE DETECTION FOR MECHANICAL WAVEGUIDE SENSOR
    Publication number: 20200149979
    Abstract: A sensor with a mechanical waveguide maybe characterized using test ultrasonic signals to generate a baseline signature, and the baseline signature may later be used to detect faults in the sensor.
    Type: Application
    Filed: April 10, 2018
    Publication date: May 14, 2020
    Inventors: Richard A. Roth, II, Stuart J. Shelley, Kevin Sigmund, Oleg Lobkis
  • DISTRIBUTED ACTIVE MECHANICAL WAVEGUIDE SENSOR WITH DAMPING
    Publication number: 20200149980
    Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be dampened using a damping device on a plurality of support members for the waveguide and/or using a damping device on the waveguide itself, and variable spacing of support members and/or constant tensioning of the waveguide may also be used.
    Type: Application
    Filed: April 10, 2018
    Publication date: May 14, 2020
    Inventors: Richard A. Roth, II, Stuart J. Shelley, Kevin Sigmund, Oleg Lobkis