Patents by Inventor Jeffrey R. Schubert

Jeffrey R. Schubert 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: 10720300
    Abstract: A two-dimensional X-ray scanner that includes a beam steerer for steering an electron beam to impinge upon a target; and a collimator further including an aperture adapted for travel in an aperture travel path for rotating the X-ray beam plane spanned by the electron beam impinging upon the target along a focal track for emitting a scanning X-ray beam.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 21, 2020
    Assignee: American Science and Engineering, Inc.
    Inventors: Martin Rommel, Jeffrey R. Schubert
  • Publication number: 20180286624
    Abstract: A two-dimensional X-ray scanner that includes a beam steerer for steering an electron beam to impinge upon a target; and a collimator further including an aperture adapted for travel in an aperture travel path for rotating the X-ray beam plane spanned by the electron beam impinging upon the target along a focal track for emitting a scanning X-ray beam.
    Type: Application
    Filed: September 29, 2017
    Publication date: October 4, 2018
    Inventors: Martin Rommel, Jeffrey R. Schubert
  • Patent number: 9417060
    Abstract: Methods and apparatus for determining the distance to a specified point or distances between specified points on one or more objects, where the specified points are obscured behind an opaque barrier and cannot be viewed. Specified points are illuminated with penetrating radiation from two or more successive locations, and scattered radiation from the specified points is detected, and distance is calculated based on illumination angles. The apparatus has a source of penetrating radiation, a beam scanner for directing the penetrating radiation, a detector for detecting scattered radiation, and a processor for calculating the distance.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 16, 2016
    Assignee: American Science and Engineering, Inc.
    Inventor: Jeffrey R. Schubert
  • Patent number: 9291582
    Abstract: An adjustable collimator for shaping a beam of particles, such as for purposes of inspecting contents of a container. The adjustable collimator has an obscuring element substantially opaque to passage of the particles in a propagation direction that is radial with respect to the axis of rotation of a ring of apertures. A gap in the obscuring element may be characterized by a length taken along a long dimension and a jaw spacing taken along narrow dimension, and at least one of the length of the gap and the jaw spacing is subject to adjustment, either manual or automatic. The adjustable collimator may be disposed either inside or outside the ring of apertures, and, in some embodiments, the jaw spacing may be a function of distance along the long dimension relative to an edge of the gap.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 22, 2016
    Assignee: American Science and Engineering, Inc.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Publication number: 20150378048
    Abstract: Methods and apparatus for parcel inspection with x-rays. A source of penetrating radiation contained entirely within an enclosing body of a conveyance generates a beam of penetrating radiation incident upon a parcel while the parcel is disposed externally to the enclosing body. A detector generates an inspection signal based on detection of penetrating radiation after interaction with contents of the parcel. A conveyor positions the parcel with respect to the beam of penetrating radiation, while a processor ascertains a specified characteristic of the parcel based on the inspection signal.
    Type: Application
    Filed: June 1, 2015
    Publication date: December 31, 2015
    Inventors: Jeffrey R. Schubert, Lee Grodzins, Jason Toppan, Michael Wilson
  • Patent number: 9052271
    Abstract: Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that the total beam fluence incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: June 9, 2015
    Assignee: American Science and Egineering, Inc.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Patent number: 9020100
    Abstract: An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 28, 2015
    Assignee: America Science and Engineering, Inc.
    Inventors: Richard Mastronardi, Dean Fleury, Jeffrey R. Schubert, Joseph DiMare, Richard Schueller, Alexander Chalmers
  • Patent number: 9014339
    Abstract: Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that beam flux incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 21, 2015
    Assignee: American Science and Engineering, Inc.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Patent number: 8923481
    Abstract: Embodiments of backscatter inspection systems include features to enable inspection of irregular surfaces, tight spacer, and other hard-to-reach places. Some embodiments include arms that maneuver a scan head with at least three degrees of freedom, and some embodiments include arms that maneuver a scan head with at least seven degrees of freedom. Some embodiments include proximity detectors on a scan head or base, detect contact with an object being inspected, and to slow or stop the motion of the system accordingly. Some compact embodiments scan the interior of an object from within, and include a rotating, low-energy source of penetrating radiation, and at least one backscatter detector, which may be stationary, or may rotate with the source.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: December 30, 2014
    Assignee: American Science and Engineering, Inc.
    Inventors: Jeffrey R. Schubert, John P. Handy, Richard L. Schueller, Terry Lee McElroy, David C. Walazek, William J. Baukus
  • Patent number: 8903045
    Abstract: A variable-geometry backscatter inspection system has a radiation detector array including one or more backscatter radiation detectors. The position of a second backscatter radiation detector is variable with respect to the position of a first backscatter radiation detector, so that the size of the detector array may be varied by moving the second radiation detector into or out of a predefined alignment with the first radiation detector. The system may include a movable base, and at least one of the detectors is movable with respect to the base. Methods of inspecting an object include forming a detector array by moving a second radiation detector into a predefined alignment with a first radiation detector, illuminating the object with a pencil beam of penetrating radiation, and detecting backscattered radiation with the detector array.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: December 2, 2014
    Assignee: American Science and Engineering, Inc.
    Inventors: Jeffrey R. Schubert, William Randall Cason
  • Publication number: 20140233707
    Abstract: A versatile beam scanner for generating a far-field scanned pencil beam, and, alternatively, a far-field pencil beam. An angle selector limits the angular extent of an inner fan beam emitted by a source of penetrating radiation. The source and angle selector may be translated, along a direction parallel to a central axis of a multi-aperture unit, in such a manner as to generate a scanned far-field pencil beam, when rings of apertures are interposed between the source and an inspected target, or, alternatively, a far-field fan beam, when no ring of apertures is interposed.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Publication number: 20140044238
    Abstract: An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 13, 2014
    Applicant: American Science and Engineering, Inc.
    Inventors: Richard Mastronardi, Dean Fleury, Jeffrey R. Schubert, Joseph DiMare, Richard Schueller, Alexander Chalmers
  • Patent number: 8605859
    Abstract: An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 10, 2013
    Assignee: American Science and Engineering, Inc.
    Inventors: Richard Mastronardi, Dean Fleury, Jeffrey R. Schubert, Joseph DiMare, Richard Schueller, Alexander Chalmers
  • Publication number: 20130101090
    Abstract: Embodiments of backscatter inspection systems include features to enable inspection of irregular surfaces, tight spacer, and other hard-to-reach places. Some embodiments include arms that maneuver a scan head with at least three degrees of freedom, and some embodiments include arms that maneuver a scan head with at least seven degrees of freedom. Some embodiments include proximity detectors on a scan head or base, detect contact with an object being inspected, and to slow or stop the motion of the system accordingly. Some compact embodiments scan the interior of an object from within, and include a rotating, low-energy source of penetrating radiation, and at least one backscatter detector, which may be stationary, or may rotate with the source.
    Type: Application
    Filed: April 13, 2012
    Publication date: April 25, 2013
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Jeffrey R. Schubert, John P. Handy, Richard L. Schueller, David C. Walazek, William J. Baukus
  • Publication number: 20130003936
    Abstract: An adjustable collimator for shaping a beam of particles, such as for purposes of inspecting contents of a container. The adjustable collimator has an obscuring element substantially opaque to passage of the particles in a propagation direction that is radial with respect to the axis of rotation of a ring of apertures. A gap in the obscuring element may be characterized by a length taken along a long dimension and a jaw spacing taken along narrow dimension, and at least one of the length of the gap and the jaw spacing is subject to adjustment, either manual or automatic. The adjustable collimator may be disposed either inside or outside the ring of apertures, and, in some embodiments, the jaw spacing may be a function of distance along the long dimension relative to an edge of the gap.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Publication number: 20120269319
    Abstract: Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that the total beam fluence incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 25, 2012
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Publication number: 20120263276
    Abstract: A variable-geometry backscatter inspection system has a radiation detector array including one or more backscatter radiation detectors. The position of a second backscatter radiation detector is variable with respect to the position of a first backscatter radiation detector, so that the size of the detector array may be varied by moving the second radiation detector into or out of a predefined alignment with the first radiation detector. The system may include a movable base, and at least one of the detectors is movable with respect to the base. Methods of inspecting an object include forming a detector array by moving a second radiation detector into a predefined alignment with a first radiation detector, illuminating the object with a pencil beam of penetrating radiation, and detecting backscattered radiation with the detector array.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Jeffrey R. Schubert, William Randall Cason
  • Publication number: 20120106714
    Abstract: Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that beam flux incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 3, 2012
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Patent number: 7995707
    Abstract: An X-ray imaging inspection system for bags and packages. Transmission imaging is performed using a fan beam and a segmented detector, while scatter imaging is performed with a scanned pencil beam, with both beams active simultaneously. Cross-talk between the beams is mitigated by a combination of shielding, scatter detector design, positioning and orientation, and image processing. Image processing subtracts the measured radiation scattered from the transmission beam into the scatter detectors, reducing cross-talk.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: August 9, 2011
    Assignee: American Science and Engineering, Inc.
    Inventors: Peter J. Rothschild, Jeffrey R. Schubert, Aaron D. Pailes
  • Publication number: 20110164726
    Abstract: An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.
    Inventors: Richard Mastronardi, Dean Fleury, Jeffrey R. Schubert, Joseph DiMare, Richard Schueller, Alexander Chalmers