Patents by Inventor Stephen Darrouzet

Stephen Darrouzet 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: 9857163
    Abstract: A method of measuring an object having associated geometric data and material data receives the geometric data and material data relating to the object, and controls an x-ray device to scan the object. The x-ray device operates in accordance with a plurality of operating parameters. The method then varies at least one of the operating parameters during the scan as a function of one or both the geometric data and the material data.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: January 2, 2018
    Assignee: Hexagon Metrology, Inc.
    Inventors: Jonathan J. O'Hare, Stephen Darrouzet
  • Patent number: 9170215
    Abstract: An imaging method positions a heterogeneous object within a fixture having a chamber. The fixture also has a valve for receiving a gas and normally sealing the chamber. Thus, the object is within the chamber. Next the method positions the fixture within an active region of a CT machine, fluidly connects a gas line to the valve, and injects an inert gas into the chamber through the gas line and the valve. The inert gas may include one or more of the xenon, argon, and krypton. The method then increases the pressure within the sealed chamber to increase the density of the gas within the chamber, and directs x-ray energy toward the active region of the CT machine to produce a plurality of two-dimensional images of the object and the pressurized gas. Finally, the method generates a three-dimensional representation of the object from the plurality of images.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: October 27, 2015
    Assignee: Hexagon Metrology, Inc.
    Inventors: Jonathan O'Hare, Stephen Darrouzet
  • Publication number: 20150139381
    Abstract: A method of measuring an object having associated geometric data and material data receives the geometric data and material data relating to the object, and controls an x-ray device to scan the object. The x-ray device operates in accordance with a plurality of operating parameters. The method then varies at least one of the operating parameters during the scan as a function of one or both the geometric data and the material data.
    Type: Application
    Filed: October 24, 2014
    Publication date: May 21, 2015
    Inventors: Jonathan J. O'Hare, Stephen Darrouzet
  • Publication number: 20140368500
    Abstract: A method of measuring an object registers the object with a model of the object, and determines at least one feature of the object to scan. Next, the method controls an X-ray scanning device to scan less than the entirety of the object to produce visual data representing at least one scanned portion. The at least one scanned portion has the at least one feature, while the X-ray scanning device is controlled as a function of registering the object and model.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 18, 2014
    Applicant: Hexagon Metrology, Inc.
    Inventors: Jonathan J. O'Hare, Stephen Darrouzet
  • Patent number: 8911149
    Abstract: An apparatus for calibrating an x-ray computed tomography device has a plurality of objects formed from a material that is visible to x-rays, and a base at least in part fixedly supporting the plurality of objects so that each of the plurality of objects contacts at least one of the other objects. Each one of the plurality of objects: 1) is configured to receive x-rays without changing shape, 2) has substantially the same shape and size as the other objects, 3) has an attenuation value to x-rays (“object attenuation value”), and 4) is symmetrically shaped relative to its center point. Like the objects, the base also has an attenuation value to x-rays (the “base attenuation value”). The object attenuation value is greater than the base attenuation. Each of the plurality of objects is kinematically locked in place on the base.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: December 16, 2014
    Assignee: Hexagon Metrology, Inc.
    Inventors: Jonathan J. O'Hare, Stephen Darrouzet
  • Publication number: 20140254770
    Abstract: An apparatus for calibrating an x-ray computed tomography device has a plurality of objects formed from a material that is visible to x-rays, and a base at least in part fixedly supporting the plurality of objects so that each of the plurality of objects contacts at least one of the other objects. Each one of the plurality of objects: 1) is configured to receive x-rays without changing shape, 2) has substantially the same shape and size as the other objects, 3) has an attenuation value to x-rays (“object attenuation value”), and 4) is symmetrically shaped relative to its center point. Like the objects, the base also has an attenuation value to x-rays (the “base attenuation value”). The object attenuation value is greater than the base attenuation . Each of the plurality of objects is kinematically locked in place on the base.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicant: HEXAGON METROLOGY, INC.
    Inventors: Jonathan J. O'Hare, Stephen Darrouzet
  • Patent number: 8764290
    Abstract: An apparatus for calibrating an x-ray computed tomography device has a plurality of objects formed from a material that is visible to x-rays, and a base at least in part fixedly supporting the plurality of objects so that each of the plurality of objects contacts at least one of the other objects. Each one of the plurality of objects: 1) is configured to receive x-rays without changing shape, 2) has substantially the same shape and size as the other objects, 3) has an attenuation value to x-rays (“object attenuation value”), and 4) is symmetrically shaped relative to its center point. Like the objects, the base also has an attenuation value to x-rays (the “base attenuation value”). The object attenuation value is greater than the base attenuation. Each of the plurality of objects is kinematically locked in place on the base.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 1, 2014
    Assignee: Hexagon Metrology, Inc.
    Inventors: Jonathan J. O'Hare, Stephen Darrouzet
  • Publication number: 20140119501
    Abstract: An imaging method positions a heterogeneous object within a fixture having a chamber. The fixture also has a valve for receiving a gas and normally sealing the chamber. Thus, the object is within the chamber. Next the method positions the fixture within an active region of a CT machine, fluidly connects a gas line to the valve, and injects an inert gas into the chamber through the gas line and the valve. The inert gas may include one or more of the xenon, argon, and krypton. The method then increases the pressure within the sealed chamber to increase the density of the gas within the chamber, and directs x-ray energy toward the active region of the CT machine to produce a plurality of two-dimensional images of the object and the pressurized gas. Finally, the method generates a three-dimensional representation of the object from the plurality of images.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 1, 2014
    Applicant: HEXAGON METROLOGY, INC.
    Inventors: Jonathan O'Hare, Stephen Darrouzet