Patents by Inventor James Crawford

James Crawford 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: 11360348
    Abstract: The present disclosure relates to a liquid crystal display (LCD) system. The system in one example has a light source for generating unpolarized light, and an LCD screen arranged in a path of transmittance of the unpolarized light. First and second wire grid polarizers are arranged adjacent to the LCD screen and each have a plurality of nano-scale wires, with the first and second wire grid polarizers have differing polarizations. A pitch of each of the nano-scale wires is no larger than one-third a wavelength of the unpolarized light from the light source. The wire grid polarizers create, in connection with operation of the LCD screen, a 2D light mask suitable for initiating the polymerization of an optically curable material.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: June 14, 2022
    Assignees: Lawrence Livermore National Security, LLC, Board of Regents, The University of Texas System
    Inventors: Eric B. Duoss, James Oakdale, Nicholas Anthony Rodriguez, Hongtao Song, Richard Crawford, Carolyn Seepersad, Morgan Chen
  • Publication number: 20220171086
    Abstract: Systems and methods employed measure borehole density by neutron induced gammas using a pulsed neutron tool. Traditional nuclear density methods only measure a bulk average density of the surrounding material. As discussed below, methods to measure only the borehole density excluding the contamination from the formation are disclosed. Specifically, the proposed methods use unique signatures from each geometric region to directly measure the borehole density or compensate for the contamination from formation. This method may be achieved by a borehole density measurement using differential attenuation of capture gamma from casing iron, a borehole density measurement using differential attenuation of inelastic gamma from oxygen, a differential attenuation of any induced gamma from any element from borehole and formation, or any combination thereof.
    Type: Application
    Filed: May 28, 2021
    Publication date: June 2, 2022
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford, Weijun Guo
  • Publication number: 20220171088
    Abstract: Systems and methods may utilize information collected by a pulsed-neutron logging tool along with modeling a characterization of a borehole to form a 3-stage correction algorithm. This algorithm may be used to find an oil, water, and gas holdup in the borehole. During operations, a pulsed neutron logging tool which emits neutrons to interact with nuclei inducing gamma radiation. The gamma radiation is detected into a response which may be correlated to the location of a holdup in a borehole by using the entire spectrum or ratios of selected peaks. In examples, a borehole density index may be implemented to complement the response and improve accuracy and measurement confidence.
    Type: Application
    Filed: May 28, 2021
    Publication date: June 2, 2022
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford, Weijun Guo
  • Publication number: 20220171087
    Abstract: Systems and methods for determining holdup in a wellbore using a neutron-based downhole tool. In examples, the tool includes nuclear detectors that may measure gammas induced by highly energized pulsed-neutrons emitted by a generator. The characteristic energy and intensity of detected gammas indicate the elemental concentration for that interaction type. A detector response may be correlated to the borehole holdup by using the entire spectrum or the ratios of selected peaks. As a result, measurements taken by the neutron-based downhole tool may allow for a two component (oil and water) or a three component (oil, water, and gas) measurement. The two component or three component measurements may be further processed using machine learning (ML) and/or artificial intelligence (AI) with additional enhancements of semi-analytical physics algorithms performed at the employed network's nodes (or hidden layers).
    Type: Application
    Filed: May 28, 2021
    Publication date: June 2, 2022
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford, Weijun Guo
  • Publication number: 20220164153
    Abstract: Aspects of the subject disclosure may include, for example, receiving a group of content layers from a group of media content sources, and identifying metadata for each of the group of content layers resulting in a group of metadata. Further embodiments can include obtaining a group of user preferences, and selecting a first portion of the group of content layers according to the group of metadata and the group of user preferences resulting in a first selected portion of the group of content layers. Additional embodiments can include providing first instructions to a first display of a first communication device to present the first selected portion of the group of content layers resulting in a first presentation. Other embodiments are disclosed.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 26, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Eric Zavesky, David Crawford Gibbon, James H. Pratt
  • Patent number: 11339647
    Abstract: A method for determining discharge area in hydraulic stimulation operations is provided that includes obtaining one or more treatment data inputs from a well system, and determining a discharge area by applying the one or more treatment data inputs to a function that determines discharge area in terms of volumetric flow rate of the fracturing fluid, wherein the discharge area is a total area of all downhole exits through which the fracturing fluid exits a wellbore into a subterranean formation.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 24, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Casey Lee Cox, Kenneth Lee Borgen, Russell James Padalecki, Nathan Taylor Crawford
  • Publication number: 20220155006
    Abstract: The subject matter of this specification can be embodied in, among other things, a method for time shifting when a cold storage facility is cooled that includes determining a thermal model of a cold storage facility, obtaining an energy cost model that describes a schedule of variable energy costs over a predetermined period of time in the future, determining an operational schedule for at least a portion of a refrigeration system based on the thermal model, the energy cost model, and a maximum allowed temperature, and powering on the portion the refrigeration system based on the operational schedule, cooling, by the powered portion of the refrigeration system to a temperature below the maximum allowed temperature, reducing power usage of the powered portion of the refrigeration system based on the operational schedule, and permitting the facility to be warmed by ambient temperatures toward the maximum allowed temperature.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 19, 2022
    Inventors: Alexander James Woolf, Elliott Gerard Wolf, Daniel Thomas Wintz, Jesse Scott Tootell, Bryan Thomas Kaye, Jesse Dylan Crossno, Alexander Ming Zhang, Gabriel Len West, John Richardson Crawford, Tiara Lee Flewelling
  • Patent number: 11320563
    Abstract: A method for determining a density may comprise disposing a nuclear density tool into a wellbore. The nuclear density tool may comprise a gamma source and a first gamma detector, wherein the first gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool. The method may further comprise transmitting an energy from the gamma source, detecting the energy reflected with the first gamma detector, recording a count rate of the energy at the first gamma detector, and identifying a density of a first layer from the count rate, a mass attenuation coefficient, and a source-to-detector distance. A system for determining a density may comprise a nuclear density tool. The nuclear density tool may comprise a gamma source configured to transmit an energy and a first gamma detector configured to detect reflected energy. The system may further comprise an information handling system.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: May 3, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford
  • Publication number: 20220120178
    Abstract: This disclosure presents systems and processes to collect elemental composition of target fluid and solid material located downhole of a borehole. Waveguides can be utilized that include capillary optics to deliver emitted high energy into a container or a conduit and then to detect the high energy. A source waveguide can be used to emit the high energy into the target fluid and a detector waveguide can collect resulting measurements. Each waveguide can include a protective sheath and a pressure cap on the end of the capillary optics that are proximate the target fluid, to protect against abrasion and target fluid pressure. In other aspects, a pulsed neutron tool can be utilized in place of the waveguides to collect measurements. The collected measurements can be utilized to generate chemical signature results that can be utilized to determine the elemental composition of the target fluid or of the solid material.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 21, 2022
    Inventors: Christopher Michael Jones, Jeffrey James Crawford, Anthony Herman van Zulekom, Darren George Gascooke
  • Patent number: 11237294
    Abstract: A method includes receiving a drilling parameter, a tool characterization parameter, and a formation model. The method includes generating a forward model of a tool response at a bed boundary using the one drilling parameter, the tool characterization parameter, and the formation model. The method includes predicting at least two azimuthal gamma logs using the forward model. The method includes determining that a difference between the at least two azimuthal gamma logs generates a confidence level that is greater than a confidence threshold. In response to determining that the difference between the at least two azimuthal gamma logs generates the confidence level that is greater than the confidence threshold, the method includes generating a well plan. The method includes outputting a command for controlling a trajectory in directionally drilling a wellbore within a formation associated with the formation model using the well plan.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 1, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeffrey James Crawford, Jiaxin Wang
  • Publication number: 20210380084
    Abstract: A method for controlling a machine during a transition from a service brake state to a parking brake includes receiving, by a control module, a request for activating a parking brake assembly. The method also includes transmitting, by the control module, control signals for activating a set of first brakes associated with a service brake assembly, a set of second brakes associated with the service brake assembly, and a clutch assembly. The method further includes controlling, by the control module, the set of first brakes for deactivating the set of first brakes. The method includes controlling, by the control module, the parking brake assembly for activating the parking brake assembly. The method also includes controlling, by the control module, the set of second brakes for deactivating the set of second brakes. The method further includes controlling, by the control module, the clutch assembly for deactivating the clutch assembly.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 9, 2021
    Applicant: Caterpillar Underground Mining Pty. Ltd.
    Inventors: Alexander Eli DOWLING, Jason Prakash WIGG, Brodie Lee THOMPSON, Suneel Venkata KANDULA, Sai Praveen GUNDLAPALLI, Martyn James CRAWFORD
  • Publication number: 20210373193
    Abstract: A method for determining a density may comprise disposing a nuclear density tool into a wellbore. The nuclear density tool may comprise a gamma source and a first gamma detector, wherein the first gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool. The method may further comprise transmitting an energy from the gamma source, detecting the energy reflected with the first gamma detector, recording a count rate of the energy at the first gamma detector, and identifying a density of a first layer from the count rate, a mass attenuation coefficient, and a source-to-detector distance. A system for determining a density may comprise a nuclear density tool. The nuclear density tool may comprise a gamma source configured to transmit an energy and a first gamma detector configured to detect reflected energy. The system may further comprise an information handling system.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford
  • Publication number: 20210373194
    Abstract: A nuclear density tool may comprise a gamma source, a gamma detector, wherein the gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool, and a housing, wherein the gamma source and the gamma detector are disposed in the housing. The nuclear density tool may further comprise a first cutout in the housing positioned to allow the gamma source to emit an energy through the housing and a second cutout in the housing posited to allow the gamma detector to detect the energy through the housing.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford
  • Publication number: 20210373195
    Abstract: A method and system for determining a density. The method may comprise disposing a nuclear density tool into a wellbore, performing a spectral deconvolution, determining an energy channel for a first measurement layer, recording a count rate with the gamma detector for the first measurement layer, applying a slope operator to the count rate, and identifying a first density of the first measurement layer. The system may comprise a nuclear density tool that includes a gamma source and a gamma detector configured to record a count rate, wherein the gamma detector and the gamma source are disposed on a longitudinal axis of the nuclear density tool. The system may also comprise an information handling system.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mayir Mamtimin, Jeffrey James Crawford
  • Patent number: 11169214
    Abstract: Systems, methods, and computer media for battery system management and non-linear estimation of battery state of charge are provided herein. Battery data is received for a time period over which a battery system has operated. The battery data represents the actual performance of the battery system over the time period. Sub-periods of charging or discharging can be identified in the time period. For the sub-periods of time, a curve can be fit to the battery data. Using the curves for the battery data for the sub-periods of time, an expected performance of the battery system, over a range of states-of-charge, can be determined. Operating instructions for the battery system can be provided based on the expected performance.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: November 9, 2021
    Assignee: Battelle Memorial Institute
    Inventors: Alasdair James Crawford, Vilayanur Venkataraman Viswanathan, Patrick Joseph Balducci, Trevor D. Hardy, Di Wu, Michael C. W. Kintner-Meyer
  • Publication number: 20210270125
    Abstract: A downhole tool and method of utilizing the downhole tool to make measurements in a wellbore formed in a formation and having different wellbore diameters. The downhole tool generally includes a tool body defined along a longitudinal central axis and having an internal passage extending longitudinally therethrough and an external pocket extending therealong; a sensor module having a sensor and being deployed within the external pocket; a spacer deployed in the external pocket, the spacer positioned between the sensor module and the tool body; and a clamp attached to the tool body, the clamp overlaying both the sensor module and the spacer to confine the sensor module within the external pocket. The spacer may have an inner concave surface engaging the sensor module and an outer convex surface seating in the external pocket.
    Type: Application
    Filed: September 24, 2018
    Publication date: September 2, 2021
    Inventors: Justin Cole Smith, Jeffrey James Crawford
  • Publication number: 20210261794
    Abstract: A reinforcing fabric configured for intumescent material expansion includes a woven fabric. The woven fabric has a plurality of composite yarns. Each composite yarn includes a fire resistant component and a crimping component. The crimping component is bonded to the fire resistant component, where the fire resistant component is in a crimped state and the crimping component is in a relaxed state when bonded. The woven fabric is woven with the plurality of the composite yarns with the fire resistant component maintained in the crimped state and the crimping component maintained in the relaxed state in each of the composite yarns. When the woven fabric is imbedded in an intumescent material, the woven fabric is configured to reinforce the intumescent material during heat expansion, and mechanical loads from the expanding intumescent material, in a controlled and predictable manner.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 26, 2021
    Inventors: James A. CRAWFORD, JR., Aaron FEINBERG
  • Publication number: 20210231829
    Abstract: A method includes receiving a drilling parameter, a tool characterization parameter, and a formation model. The method includes generating a forward model of a tool response at a bed boundary using the one drilling parameter, the tool characterization parameter, and the formation model. The method includes predicting at least two azimuthal gamma logs using the forward model. The method includes determining that a difference between the at least two azimuthal gamma logs generates a confidence level that is greater than a confidence threshold. In response to determining that the difference between the at least two azimuthal gamma logs generates the confidence level that is greater than the confidence threshold, the method includes generating a well plan. The method includes outputting a command for controlling a trajectory in directionally drilling a wellbore within a formation associated with the formation model using the well plan.
    Type: Application
    Filed: November 2, 2020
    Publication date: July 29, 2021
    Inventors: Jeffrey James Crawford, Jiaxin Wang
  • Publication number: 20210048555
    Abstract: The present disclosure describes gain stabilization techniques for scintillation devices which do not require use of an intrinsic reference radiation source. Reference light pulses are emitted into the scintillation device to obtain a signal having a given magnitude. The magnitude of the signal is compared to the magnitude of a reference signal computed as a function of temperature and a degradation factor. A gain adjustment is computed with causes the magnitude of the signal to match the target reference magnitude. The gain adjustment is then used to adjust the system gain so that subsequent output signal amplitudes, measured when energetic photons interact in the scintillator, always correspond to the same energy.
    Type: Application
    Filed: May 1, 2018
    Publication date: February 18, 2021
    Inventors: Lei Wang, Jeffrey James Crawford, Paravastu Badrinarayanan, Gordon Layne Moake, Michel LeBlanc
  • Patent number: 10865585
    Abstract: The subject matter described herein includes a tube for use in creating a support for a roof line of a structure. The tube comprises an inner flexible bladder, a seamless woven cylinder formed from fibers woven to form a seamless tubular arch shape when the cylinder is inflated, the cylinder engaged with the flexible bladder, and an outer weather shield coating engaged with the cylinder, wherein, in operation a plurality of tubes are used to form the roof line of a structure to define a housing for containing an article, wherein the plurality of tubes maintains flexibility so that the plurality of tubes can be inflated, deflated, and re-deployed.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 15, 2020
    Assignee: Textum Weaving, Inc.
    Inventors: James A. Crawford, Jr., John N. Pepin