Patents by Inventor Shant Kenderian

Shant Kenderian 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).

  • Patent number: 11926104
    Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: March 12, 2024
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Shant Kenderian, Joseph T. Case
  • Publication number: 20240020890
    Abstract: Self-determined shot geometry for open-configuration portable x-ray computed tomography (CT) includes capturing one or more x-ray shot images into a computing system, and estimating an unknown constellation model and one or more shot geometries. It also includes reconstructing a volume image from the one or more captured shot images and the one or more geometries using computed tomography.
    Type: Application
    Filed: October 31, 2022
    Publication date: January 18, 2024
    Applicant: The Aerospace Corporation
    Inventors: Joseph T. CASE, Shant KENDERIAN
  • Publication number: 20240020881
    Abstract: A method for self-determination of shot geometry for use in open-configuration portable x-ray computed tomography (CT) includes inputting one or more x-ray shot images into a computing system. The method also include determining, by the computing system, one or more shot geometries from the one or more inputted x-ray shot images. The method further includes reconstructing, by the computing system, a volume image from the one or more inputted x-ray shot images and the one or more shot geometries. The method also includes outputting, by the computing system, a reconstructed volume image.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 18, 2024
    Applicant: The Aerospace Corporation
    Inventors: Joseph T. CASE, Shant KENDERIAN
  • Publication number: 20220266532
    Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Applicant: The Aerospace Corporation
    Inventors: Shant Kenderian, Joseph T. Case
  • Patent number: 11396045
    Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: July 26, 2022
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Shant Kenderian, Tait DeWitt McLouth, Joseph T. Case, Dhruv N. Patel
  • Publication number: 20200290121
    Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 17, 2020
    Inventors: Shant KENDERIAN, Tait DeWitt MCLOUTH, Joseph T. CASE, Dhruv N. PATEL
  • Patent number: 10495609
    Abstract: An ultrasonic inspection technique may be used to inspect quality of a bond between thermal protection system (TPS) material and a composite. The technique may include a highly damped transducer emitting an incident wave, which may traverse through thermal protection system (TPS) material and to a back wall of a composite. The incident wave may be of a low frequency signal, and may return a bondline echo and a backwall echo. The bondline echo is returned when the incident wave reaches a bondline and the backwall echo is returned when the incident wave reaches the backwall of the composite. The bondline echo and the backwall echo may be used to generate a waveform to assess the bond quality, revealing possible unbonds or kissing unbonds.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: December 3, 2019
    Assignee: The Aerospace Corporation
    Inventors: Yong Min Kim, Joseph T Case, Shant Kenderian
  • Publication number: 20180315236
    Abstract: A portable x-ray computed tomography (CT) system may utilize algebraic reconstruction techniques (ART) to produce 3D volume images from tens of shots or less. The system may be deployed as desired where x-ray source and detector positions are not known beforehand. A fast, accurate matrix may be formed relating voxels to detector pixels via a modified ray tracing algorithm, eliminating artifacts caused by approaches using rough approximations. Masking or recombination may be performed to remove detector pixels that are not part of a region of interest (ROI) or lump the pixels together as one unknown, significantly reducing matrix size, and hence, computation time. The positions and orientations of the x-ray source and detector may be treated as unknowns and refined to optimize a volume image metric. For example, the optimized metric could be image contrast, image sparsity, or total variation.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 1, 2018
    Applicant: The Aerospace Corporation
    Inventors: Joseph T. Case, Shant Kenderian, Eric C. Johnson
  • Patent number: 10096148
    Abstract: A portable x-ray computed tomography (CT) system may utilize algebraic reconstruction techniques (ART) to produce 3D volume images from tens of shots or less. The system may be deployed as desired where x-ray source and detector positions are not known beforehand. A fast, accurate matrix may be formed relating voxels to detector pixels via a modified ray tracing algorithm, eliminating artifacts caused by approaches using rough approximations. Masking or recombination may be performed to remove detector pixels that are not part of a region of interest (ROI) or lump the pixels together as one unknown, significantly reducing matrix size, and hence, computation time. The positions and orientations of the x-ray source and detector may be treated as unknowns and refined to optimize a volume image metric. For example, the optimized metric could be image contrast, image sparsity, or total variation.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 9, 2018
    Assignee: The Aerospace Corporation
    Inventors: Joseph T. Case, Shant Kenderian, Eric C. Johnson
  • Publication number: 20180106765
    Abstract: An ultrasonic inspection technique may be used to inspect quality of a bond between thermal protection system (TPS) material and a composite. The technique may include a highly damped transducer emitting an incident wave, which may traverse through thermal protection system (TPS) material and to a back wall of a composite. The incident wave may be of a low frequency signal, and may return a bondline echo and a backwall echo. The bondline echo is returned when the incident wave reaches a bondline and the backwall echo is returned when the incident wave reaches the backwall of the composite. The bondline echo and the backwall echo may be used to generate a waveform to assess the bond quality, revealing possible unbonds or kissing unbonds.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 19, 2018
    Inventors: Yong Min Kim, Joseph T. Case, Shant Kenderian
  • Publication number: 20060201253
    Abstract: A system for ultrasonic inspection of railroad axles uses a laser to project a series of pulses onto the axle to create an ultrasonic signal propagating along the surface of the axle. An air-coupled detector detects the ultrasonic signal at a position on the axle spaced apart from the laser impact region. The ultrasonic signal can then be analyzed to detect the presence of a reflected wave indicating the presence of a defect in the axle.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 14, 2006
    Inventors: Kari Gonzales, Richard Morgan, Shant Kenderian, James Bilodeau
  • Patent number: 6945114
    Abstract: Formed Laser Sources (FLS) using pulsed laser light for generation of ultrasonic stress waves are combined with air-coupled detection of ultrasound to provide for the hybrid non-contact, dynamic and remote ultrasonic testing of structural materials, especially railroad tracks. Using this hybrid technique, multimode and controlled frequency and wavefront surface acoustic waves, plate waves, guided waves, and bulk waves are generated to propagate on and within the rail tracks. The non-contact, remote nature of this methodology enables high-speed, fill access inspections of rail tracks. The flexibility and remote nature of this methodology makes possible the detection of critical cracks that are not easy, or impossible to detect, with current inspection techniques available to the railroad industry.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 20, 2005
    Assignee: The Johns Hopkins University
    Inventors: Shant Kenderian, B. Boro Djordjevic, Robert E. Green, Jr., Donatella Cerniglia
  • Patent number: 6862936
    Abstract: A remote, non-contact system for detecting a defect in a railroad wheel as the wheel is stationary or moving along a railroad track includes; (1) a pulsed, laser light source for generating an ultrasonic wave in the wheel, the ultrasonic wave having a direct portion and reflected and transmitted portions if the direct portion encounters a defect in the wheel, (2) an optical component in the path of the light from the light source for forming the light into a specified illumination pattern so that the generated ultrasonic wave has a specified wavefront, (3) an air-coupled transducer or a group of transducers for sensing the acoustic signal emanating from the wheel that results from the ultrasonic wave traveling through the wheel, and (4) a signal processor, responsive to the sensed acoustic signal, capable of distinguishing whether the sensed signal has a component that indicates the existence of a reflected portion in the ultrasonic wave, wherein the presence of such a component in the acoustic signal indicat
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: March 8, 2005
    Assignee: The Johns Hopkins University
    Inventors: Shant Kenderian, B. Boro Djordjevic, Donatella Cerniglia
  • Publication number: 20040056496
    Abstract: A remote, non-contact system for detecting a defect in a railroad wheel as the wheel is stationary or moving along a railroad track includes; (1) a pulsed, laser light source for generating an ultrasonic wave in the wheel, the ultrasonic wave having a direct portion and reflected and transmitted portions if the direct portion encounters a defect in the wheel, (2) an optical component in the path of the light from the light source for forming the light into a specified illumination pattern so that the generated ultrasonic wave has a specified wavefront, (3) an air-coupled transducer or a group of transducers for sensing the acoustic signal emanating from the wheel that results from the ultrasonic wave traveling through the wheel, and (4) a signal processor, responsive to the sensed acoustic signal, capable of distinguishing whether the sensed signal has a component that indicates the existence of a reflected portion in the ultrasonic wave, wherein the presence of such a component in the acoustic signal indicat
    Type: Application
    Filed: August 8, 2003
    Publication date: March 25, 2004
    Applicant: The Johns Hopkins University
    Inventors: Shant Kenderian, B. Boro Djordjevic, Donatella Cerniglia
  • Publication number: 20040003662
    Abstract: Formed Laser Sources (FLS) using pulsed laser light for generation of ultrasonic stress waves are combined with air-coupled detection of ultrasound to provide for the hybrid non-contact, dynamic and remote ultrasonic testing of structural materials, especially railroad tracks. Using this hybrid technique, multimode and controlled frequency and wavefront surface acoustic waves, plate waves, guided waves, and bulk waves are generated to propagate on and within the rail tracks. The non-contact, remote nature of this methodology enables high-speed, full access inspections of rail tracks. The flexibility and remote nature of this methodology makes possible the detection of critical cracks that are not easy, or impossible to detect, with current inspection techniques available to the railroad industry. For purpose of field testing, the equipment of the present invention can be located above the top surface of the rail.
    Type: Application
    Filed: May 30, 2003
    Publication date: January 8, 2004
    Applicant: The Johns Hopkins University
    Inventors: Shant Kenderian, B. Boro Djordjevic, Robert E. Green, Donatella Cerniglia