Patents by Inventor David A. Christopher

David A. Christopher 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: 11859475
    Abstract: An electric submersible pump includes a pump and an electric motor coupled to the pump. An electric submersible pump also includes a seal that is positioned between the pump and the electric motor. The seal has an outer housing and a seal bag internal to the outer housing. The seal bag has an outer layer and an inner layer. The outer layer is made from a first material to maintain the structure of the seal bag in a swellable state within the wellbore environment. The inner layer is made from a second material that can swell in response to contact with a polar substance and seal a tear in the outer layer of the seal bag.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 2, 2024
    Assignee: Halliburton Energy Services, Inc.
    Inventors: David Christopher Beck, Walter Dinkins
  • Patent number: 11861723
    Abstract: Systems and methods for generation and use of vendor management platform architectures are disclosed. A compliance component may be utilized to receive user input data indicating supply contracts between a client and a vendor. The user input data may be utilized to determine insurable obligations associated with the supply contract and provide indications as to whether or not the vendor is compliant with the insurable obligation required by the supply contract. An exposure assessment component may be utilized to determine an exposure score associated with a client account and/or a vendor account based on various compliance factors, spending amounts, and/or properties associated with at least one of goods and/or services that a vendor will supply to a client.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: January 2, 2024
    Assignee: AON RISK SERVICES, INC. OF MARYLAND
    Inventors: Lewis C. Lee, Louise Janice Luvina Bowman, Samuel Cameron Fleming, David Christopher Ledgerwood, Jesus Gonzalez
  • Publication number: 20230418022
    Abstract: A headset includes an optical assembly, an adjustment assembly, and a measurement component. The measurement component is configured to measure an interpupillary distance provided by an adjustment assembly in a first direction and an eye relief distance provided by the adjustment assembly in a second direction, where the first direction is orthogonal to the second direction. The measurement component includes a first rheostat configured to measure the interpupillary distance and a second rheostat configured to measure the eye relief distance, wherein the second rheostat is placed parallel to the first rheostat. The measurement component further includes a linkage configured to translate a motion of the adjustment assembly in the second direction to the first direction.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Inventors: David Christopher Lindberg, Ryan Michael Ebert, Nathaniel David Ginzton, Seth Moczydlowski
  • Publication number: 20230418076
    Abstract: A system for adjusting an interpupillary distance and an eye relief distance of a headset. The system can determine an interpupillary distance of a user and an eye relief distance of the user. The system can cause an adjustment assembly to adjust a first distance between the first lens and the second lens along a first axis based at least in part on the interpupillary distance and cause the adjustment assembly to adjust the optical assembly a second distance along a second axis that is orthogonal to the first axis based at least in part on the eye relief distance.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Inventors: David Christopher Lindberg, Ryan Michael Ebert, Seth Moczydlowski, Bruce A Cleary, III, Eric Penner, Robert Birch
  • Patent number: 11850504
    Abstract: Enhancements to existing gaming controllers facilitating expedient response time and fine-tuned accuracy are described. The enhancements comprise the internal modification of the stock resistance force supplied by the analog stick centering spring mechanism. Through modification, the force of resistance supplied may be increased to over 200 grams of force, or down to 40 grams of force, while maintaining full function of the analog stick mechanism. A second primary enhancement replaces the stock triggers, conventionally equipped with progressive resistance sensors, to a momentary ‘snap-action’ two-way switch, minimizing trigger pull distance, and removing the analog nature of the trigger to achieve optimal performance.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: December 26, 2023
    Inventor: David Christopher Bailey
  • Patent number: 11850110
    Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: December 26, 2023
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi, Prabhakar Thirugnanasambandam, Kenad Destanovic
  • Publication number: 20230404339
    Abstract: A vacuum cleaning system including a robotic unit including a traction arrangement, a docking interface and an articulated arm defining an end effector. The end effector includes a suction tool. The robotic unit defines a suction flow path which extends from the suction tool to the docking interface. The system further includes a handheld vacuum cleaner configured to be docked with the docking interface, the handheld vacuum cleaner including a vacuum motor for drawing air through the suction flow path when docked with the docking interface.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 21, 2023
    Applicant: Dyson Technology Limited
    Inventors: Andrew James SHAW, David Stuart COLE, David Christopher James NEWTON
  • Publication number: 20230404340
    Abstract: A vacuum cleaning system including a robotic unit including a traction arrangement, a docking interface and an articulated arm defining an end effector. The end effector includes a suction tool. The robotic unit defines a suction flow path which extends from the suction tool to the docking interface. The system further includes a handheld vacuum cleaner configured to be docked with the docking interface, the handheld vacuum cleaner including a vacuum motor for drawing air through the suction flow path when docked with the docking interface.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 21, 2023
    Applicant: Dyson Technology Limited
    Inventors: Andrew James SHAW, David Christopher James NEWTON, David Stuart COLE
  • Publication number: 20230404338
    Abstract: A vacuum cleaning system including a robotic unit including a traction arrangement, and a docking interface for receiving a handheld vacuum cleaner, and a handheld vacuum cleaner configured to be docked with the docking interface. The handheld vacuum cleaner includes a vacuum motor for drawing air through a suction flow path defined by the robot unit when docked with the docking interface. The handheld vacuum cleaner includes a main body from which extends a battery pack. When the handheld vacuum cleaner is docked with the docking interface, it is configured such that the battery pack extends over the top of at least part of the robotic unit. Conveniently, the robotic unit and the handheld vacuum cleaner may share one or more common suction tools, which means that both machines can be optimised for the surfaces they are intended to clean.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 21, 2023
    Applicant: Dyson Technology Limited
    Inventors: David Christopher James NEWTON, David Stuart COLE
  • Publication number: 20230397786
    Abstract: A vacuum cleaning system including a robotic unit including a main body, a traction arrangement defining a ground plane, and an articulated arm. The articulated arm includes an upper arm section and a lower arm section, wherein the upper arm section is attached to the main body at a shoulder joint, and wherein the lower arm section is attached to the upper arm section at an elbow joint, and wherein an end effector is defined at a distal end of the lower arm section. The articulated arm is configured such that the end effector is movable angularly about a first axis with respect to the elbow joint and is movable linearly along a second axis with respect to the elbow joint. The vacuum cleaning system equipped with a robotic arm that is able to bend and flex due to the pivotable upper and lower arm portions, but also extend and rotate through the lower arm or ‘forearm’ portion, providing improved dexterity for the machine.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 14, 2023
    Applicant: Dyson Technology Limited
    Inventors: David Stuart COLE, Frederick Jack WHITTEN, David Christopher James NEWTON, Samuel Finistair da Conceicao FOSS
  • Publication number: 20230385999
    Abstract: Optical imaging apparatus and method of operating the same, where the apparatus includes optics configured to provide a first optical channel and a second optical channel through the optics, a two-dimensional image sensor optically coupled to the optics, the two-dimensional image sensor configured to receive a first optical signal from the first optical channel and provide a two-dimensional image, a one-dimensional image sensor assembly optically coupled to the optics and sharing a same line of sight, the one-dimensional image sensor assembly configured to receive a second optical signal from the second optical channel at a one-dimensional image sensor therein to provide an image with an overlapping coverage area in the two-dimensional image, and at least one processor configured to operate the two-dimensional image sensor and the one-dimensional image sensor assembly.
    Type: Application
    Filed: May 25, 2022
    Publication date: November 30, 2023
    Inventors: David Christopher Mann, Randall W. Zywicki
  • Patent number: 11829330
    Abstract: Systems and methods are disclosed for processing data associated with isolated execution environments. A chunk of data associated with an isolated execution environment can include log data and non-log data. At least a portion of the log data can include log data generated by the isolated execution environment. The system can parse the chunk of data to identify the log data and the non-log data and extract at least a portion of the log data from the chunk of data. The extracted data can be further processed to generate one or more events.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: November 28, 2023
    Assignee: Splunk Inc.
    Inventors: Zhimin Liang, Matthew Modestino, David Christopher Baldwin, Marc Andre Chéné, Blaine Wastell
  • Publication number: 20230366300
    Abstract: An electric submersible pump (ESP) assembly. The ESP assembly comprises a centrifugal pump, an electric motor mechanically coupled by a drive shaft to the centrifugal pump, wherein the electric motor comprises a stator and a rotor, a bearing, wherein the bearing is disposed inside the electric motor, and a magnetic shield disposed in the electric motor between bearing and the rotor and stator.
    Type: Application
    Filed: July 11, 2023
    Publication date: November 16, 2023
    Inventors: David Christopher BECK, Ketankumar Kantilal SHETH, Robert Charles DE LONG
  • Patent number: 11816873
    Abstract: An image analysis device according to the present invention includes: an image capturing unit that captures a subject; a light emitting unit that emits light to the subject; a sensor unit that senses an inclination of the image capturing unit relative to the subject; a control unit that causes the image capturing unit to capture an image of the subject while controlling light emission of the light emitting unit; and a determination unit that, based on a positional relationship of the image capturing unit and the light emitting unit and the inclination, determines a measurement region spaced apart by a predetermined distance from a reflection region corresponding to a position in the image where a light from the light emitting unit regularly reflects at the subject.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: November 14, 2023
    Assignee: Shiseido Company, Ltd.
    Inventors: Yuji Masuda, Megumi Sekino, Hironobu Yoshikawa, David Christopher Berends, Michael Anthony Isnardi, Yuzheng Zhang
  • Patent number: 11818446
    Abstract: A system simulates hyperspectral imaging data or multispectral imaging data for a simulated sensor. Blackbody radiance of real-world thermal imagery data is computed using a Planck function, which generates a simulated spectral hypercube. Spectral emissivity data for background materials are multiplied by a per-pixel weighting function, which generates weighted spectral emissivity data. The simulated spectral hypercube is multiplied by the weighted spectral emissivity data, which generates background data in the simulated spectral hypercube. Simulated targets are inserted the background data using the Planck function. The simulated spectral hypercube is modified, and then it is used to estimate a mission measure of effectiveness of the simulated sensor.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: November 14, 2023
    Assignee: Raytheon Company
    Inventors: Randall W. Zywicki, David Christopher Mann
  • Patent number: 11801340
    Abstract: A fluid channel module for an infusion set component of a fluid infusion device that delivers a fluid to a patient includes a body section comprising coupling features to mate with a base of the infusion set component. The fluid channel module includes an interior fluid flow channel formed within the body section to receive the fluid from the fluid infusion device. The fluid channel module includes a conduit having a first end in fluid communication with the interior fluid flow channel, and having a second end to deliver the fluid to the patient.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: October 31, 2023
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: David Christopher Antonio, Sumona Nag Adhya, Jose J. Ruelas, Eric Allan Larson
  • Patent number: 11796823
    Abstract: A headset includes a housing, an optical assembly disposed in the housing, and an adjustment assembly coupling the optical assembly to the housing. The optical assembly includes a first lens and a second lens spaced from the first lens by a first distance. The adjustment assembly includes an interpupillary distance adjustment mechanism and an eye relief distance adjustment mechanism. The interpupillary distance adjustment mechanism is configured to adjust the first distance between the first lens and the second lens along a first axis. The eye relief distance adjustment mechanism configured to adjust the optical assembly a second distance along a second axis orthogonal to the first axis.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: October 24, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Ryan Michael Ebert, Nathaniel David Ginzton, David Christopher Lindberg, Seth Moczydlowski
  • Publication number: 20230314621
    Abstract: Disclosed is a technique that can provide one or more countermeasures against spoofers. An antenna, movable in space, is used to receive space vehicle (SV) signals that appear to be associated with a plurality of space vehicles of a global navigation satellite system (GNSS). SV signals are identified that have similar signal power and/or phase signatures that respectively appear to be associated with at least a first space vehicle and a second space vehicle of the GNSS. An existence of a spoofer is identified based at least in part on the identification of SV signals that have similar signal power and/or phase signatures that respectively appear to be associated with at least the first space vehicle and the second space vehicle of the GNSS.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Inventors: Ivan L. Johnston, Gilberto Isaac Sada, Steven B. Alexander, Randall Paul Jaffe, David Christopher Post, Nathan Douglas Haveman
  • Publication number: 20230316265
    Abstract: Systems, methods, and devices for provisioning funding card numbers to merchant wallets are disclosed. In one embodiment, in an information processing apparatus comprising at least one computer processor, a method for provisioning funding card numbers to third party wallets may include: (1) authenticating a customer using an electronic device; (2) redirecting the customer to a third-party website; (3) receiving, from the third-party website and via a first API, a request for funding primary account numbers (FPANs) associated with the customer; (4) providing the third-party website with a plurality of FPAN identifiers for FPANs associated with the customer; (5) receiving, from the third-party website and via a second API, a request for a FPAN associated with a selected FPAN identifier; (6) encrypting the FPAN associated with the selected FPAN identifier; and (7) communicating the encrypted FPAN to the third-party website.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Inventors: Raghuram VUDATHU, Sridhar ARAVAMUDHAN, David Christopher CAREY, Shruti K. PATEL, Janice Yoke Leng WONG
  • Patent number: D1004376
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: November 14, 2023
    Inventor: David Christopher Castillo