Patents by Inventor George Papaioannou

George Papaioannou 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: 11725575
    Abstract: Methods and systems are provided for an accessory drive device. In one example, the accessory drive device comprises an input belt coupled to a pulley of a two-speed device and an output pulley coupled to an output belt configured to provide energy to an alternator or a belt integrated starter generator.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 15, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Timothy Vaughn, George Papaioannou, John Brevick
  • Patent number: 11623633
    Abstract: Methods and systems are provided for engaging and disengaging an electromagnetic clutch of a two-speed accessory drive of an engine of a vehicle. In one example, a method comprises, responsive to an electrical demand being higher than a threshold electrical demand, operating an electric machine of the vehicle in a motor mode to reduce a speed of a grounding gear of a planetary gear set of a two-speed accessory drive (TSAD) of the vehicle; and engaging an electromagnetic clutch responsive to the speed of the grounding gear reaching a clutch engagement threshold speed.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: April 11, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Timothy Vaughn, David Ord, George Papaioannou, Joseph Lyle Thomas, John Brevick
  • Publication number: 20220219670
    Abstract: Methods and systems are provided for engaging and disengaging an electromagnetic clutch of a two-speed accessory drive of an engine of a vehicle. In one example, a method comprises, responsive to an electrical demand being higher than a threshold electrical demand, operating an electric machine of the vehicle in a motor mode to reduce a speed of a grounding gear of a planetary gear set of a two-speed accessory drive (TSAD) of the vehicle; and engaging an electromagnetic clutch responsive to the speed of the grounding gear reaching a clutch engagement threshold speed.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 14, 2022
    Inventors: Timothy Vaughn, David Ord, George Papaioannou, Joseph Lyle Thomas, John Brevick
  • Publication number: 20220154636
    Abstract: Methods and systems are provided for an accessory drive device. In one example, the accessory drive device comprises an input belt coupled to a pulley of a two-speed device and an output pulley coupled to an output belt configured to provide energy to an alternator or a belt integrated starter generator.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 19, 2022
    Inventors: Timothy Vaughn, George Papaioannou, John Brevick
  • Patent number: 10480473
    Abstract: A fuel injector and method are disclosed including an injector body with a fuel sac, and an end positioned into a combustion chamber. A main fuel passage, having a varying cross-sectional area forming a reduced pressure region, fluidically couples the fuel sac to the combustion chamber. One or more additional passages fluidically couple the reduced pressure region with one or both of the fuel sac and the combustion chamber.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 19, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaogang Zhang, Mark Meinhart, Jianwen James Yi, George Papaioannou
  • Publication number: 20190178214
    Abstract: A fuel injector and method are disclosed including an injector body with a fuel sac, and an end positioned into a combustion chamber. A main fuel passage, having a varying cross-sectional area forming a reduced pressure region, fluidically couples the fuel sac to the combustion chamber. One or more additional passages fluidically couple the reduced pressure region with one or both of the fuel sac and the combustion chamber.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 13, 2019
    Inventors: Xiaogang Zhang, Mark Meinhart, Jianwen James Yi, George Papaioannou
  • Publication number: 20170049411
    Abstract: A medical imaging system includes at least two robotic arms each with an imaging device component positioned at its distal end. A controller is configured to controllably adjust the pivots of the robotic arms to control the position and perspective angle of both imaging device component such that the perspective angle of each imaging device component faces the other imaging device component along an imaging axis. The controller and both robotic arms are further configured to rotate the imaging axis to any angle relative to the imaging volume along a plane of movement.
    Type: Application
    Filed: March 22, 2016
    Publication date: February 23, 2017
    Inventor: George Papaioannou
  • Publication number: 20160278724
    Abstract: A robotic scanning system is provided. The scanning system includes a robotic array having at least one set of scanning robots configured to perform a radiological scan on a subject, each robot having a respective emitter or detector. A control unit in electrical communication with the robotic array controls the set of scanning robots to perform the radiological scan in accordance with scan settings received from a work station. The work station is configured to permit a user to select a radiological scan to perform on the subject from a plurality of different types of radiological scans selectable by the user. An image processing device in the system receives scan data from the robotic array and produces image data indicative of a multi-dimensional image of at least a portion of the subject.
    Type: Application
    Filed: March 28, 2016
    Publication date: September 29, 2016
    Inventor: George Papaioannou
  • Patent number: 9289180
    Abstract: A medical imaging system includes a first x-ray image detector, a first x-ray generator, and a motorized turntable. The first x-ray image detector and the first x-ray generator are each mounted on a base and positioned opposite each other such that x-rays are projected from the first x-ray generator to the first x-ray image detector through a first imaging volume. The motorized turntable is positioned below the first imaging volume and between the first x-ray image detector and the first x-ray generator and is configured to rotate an imaging subject within the imaging volume.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: March 22, 2016
    Inventor: George Papaioannou
  • Publication number: 20150150522
    Abstract: A medical imaging system includes a first x-ray image detector, a first x-ray generator, and a motorized turntable. The first x-ray image detector and the first x-ray generator are each mounted on a base and positioned opposite each other such that x-rays are projected from the first x-ray generator to the first x-ray image detector through a first imaging volume. The motorized turntable is positioned below the first imaging volume and between the first x-ray image detector and the first x-ray generator and is configured to rotate an imaging subject within the imaging volume.
    Type: Application
    Filed: July 7, 2014
    Publication date: June 4, 2015
    Inventor: George Papaioannou
  • Publication number: 20150128352
    Abstract: An adaptable surface system including a plurality of individually adjustable surface units and a plurality of pressure sensors. Each pressure sensor corresponds to one of the adjustable subsurface units and is positioned to measure an amount of pressure exerted upon the subsurface unit. The system also includes a controller that receives a first pressure value from a pressure sensor, compares the value to a threshold, and adjusts the height of the first subsurface unit based on the comparison. The controller also receives a second pressure value from a second pressure sensor, compares the second pressure value to the threshold, and adjusts the height of a second subsurface unit based on the comparison.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 14, 2015
    Inventor: George Papaioannou
  • Patent number: 8770838
    Abstract: A medical imaging system includes a first x-ray image detector, a first x-ray generator, and a motorized turntable. The first x-ray image detector and the first x-ray generator are each mounted on a base and positioned opposite each other such that x-rays are projected from the first x-ray generator to the first x-ray image detector through a first imaging volume. The motorized turntable is positioned below the first imaging volume and between the first x-ray image detector and the first x-ray generator and is configured to rotate an imaging subject within the imaging volume.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: July 8, 2014
    Inventor: George Papaioannou
  • Patent number: 8752222
    Abstract: An adaptable surface system including a plurality of individually adjustable surface units and a plurality of pressure sensors. Each pressure sensor corresponds to one of the adjustable subsurface units and is positioned to measure an amount of pressure exerted upon the subsurface unit. The system also includes a controller that receives a first pressure value from a pressure sensor, compares the value to a threshold, and adjusts the height of the first subsurface unit based on the comparison. The controller also receives a second pressure value from a second pressure sensor, compares the second pressure value to the threshold, and adjusts the height of a second subsurface unit based on the comparison.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: June 17, 2014
    Inventor: George Papaioannou
  • Publication number: 20130294575
    Abstract: A medical imaging system includes a first x-ray image detector, a first x-ray generator, and a motorized turntable. The first x-ray image detector and the first x-ray generator are each mounted on a base and positioned opposite each other such that x-rays are projected from the first x-ray generator to the first x-ray image detector through a first imaging volume. The motorized turntable is positioned below the first imaging volume and between the first x-ray image detector and the first x-ray generator and is configured to rotate an imaging subject within the imaging volume.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 7, 2013
    Inventor: George Papaioannou
  • Patent number: 8525833
    Abstract: A method of generating a three-dimensional volumetric representation of a subject. The method includes capturing a first image of the subject with a first capture device from a first perspective, accessing a stored volumetric model of the subject, and approximating a first orientation of the stored volumetric model that corresponds to the first perspective. A digitally simulated radiograph is generated from the stored volumetric model and compared to the captured first image. A second image is also captured at the same time as the first picture, but from a different perspective. A second orientation of the stored volumetric model is approximated that corresponds to the second image. A second digitally simulated radiograph is generated and compared to the second image. Based on the approximated orientations, a three-dimensional volumetric representation of the subject is generated by positioning the stored volumetric model according to the first orientation and the second orientation.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: September 3, 2013
    Inventor: George Papaioannou
  • Patent number: 8147139
    Abstract: A medical imaging system comprising an x-ray image detector mounted on a robotic arm and an x-ray generator mounted opposite the x-ray image detector. The robotic arm includes two pivots and a plurality of telescoping segments to adjust the height and angle of the x-ray image detector. In some embodiments, the medical imaging system includes a second x-ray image detector and a second x-ray generator and is capable of capturing biplane stereophotogrammetric images.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: April 3, 2012
    Inventor: George Papaioannou
  • Publication number: 20100101026
    Abstract: An adaptable surface system including a plurality of individually adjustable surface units and a plurality of pressure sensors. Each pressure sensor corresponds to one of the adjustable subsurface units and is positioned to measure an amount of pressure exerted upon the subsurface unit. The system also includes a controller that receives a first pressure value from a pressure sensor, compares the value to a threshold, and adjusts the height of the first subsurface unit based on the comparison. The controller also receives a second pressure value from a second pressure sensor, compares the second pressure value to the threshold, and adjusts the height of a second subsurface unit based on the comparison.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 29, 2010
    Inventor: George Papaioannou