Patents by Inventor Gary Pace

Gary Pace 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).

  • Publication number: 20190137511
    Abstract: The invention relates to methods of assessing a patient's risk of developing Progressive multifocal leukoencephalopathy (PML).
    Type: Application
    Filed: August 28, 2018
    Publication date: May 9, 2019
    Inventors: Gary Lewis BLOOMGREN, Carmen BOZIC, Sophia LEE, Amy PACE, Tatiana PLAVINA, Meena SUBRAMANYAM
  • Patent number: 10003229
    Abstract: A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia permanent magnet motor may be used to power a drawworks. In some embodiments, the drawworks may be controlled by an active heave compensation controller.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: June 19, 2018
    Assignee: NABORS DRILLING TECHNOLOGIES USA, INC.
    Inventors: Gary Pace, Kevin R. Williams, James Garaghty, Brian Ellis
  • Patent number: 9722522
    Abstract: A method for limiting the torque of a permanent magnet AC motor includes a torque limit controller. The torque limit controller at least in part bases the torque limit on a selected direct voltage limit. The selected direct voltage limit may be used in combination with other torque limit conditions to generate the torque demand for the AC motor.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: August 1, 2017
    Assignee: CANRIG DRILLING TECHNOLOGY LTD.
    Inventor: Gary Pace
  • Publication number: 20170077705
    Abstract: A power system for an electrical system with highly fluctuating loads is powered by one or more power sources that are slow to react to load changes. The power sources are connected to electrical equipment used on the drill rig which provide active load to the generate. One or more load banks may be positioned to provide passive load to the generators to maintain generally constant generator load, while allowing for instant access to power as active load increases. Generators may be run at 100% capacity, a maximum efficient capacity, or at a high enough level to allow for a sufficiently rapid increase in power output. At least one parameter of a drilling operation may be utilized to anticipate load demand changes.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventors: Beat KUTTEL, Tommy SCARBOROUGH, Kevin Williams, Gary PACE, James GARAGHTY
  • Patent number: 9537315
    Abstract: A power system for an electrical system with highly fluctuating loads is powered by one or more power sources that are slow to react to load changes. The power sources are connected to electrical equipment used on the drill rig which provide active load to the generators. One or more load banks may be positioned to provide passive load to the generators to maintain generally constant generator load, while allowing for instant access to power as active load increases. Generators may be run at 100% capacity, a maximum efficient capacity, or at a high enough level to allow for a sufficiently rapid increase in power output. At least one parameter of a drilling operation may be utilized to anticipate load demand changes.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: January 3, 2017
    Assignee: CANRIG DRILLING TECHNOLOGY LTD.
    Inventors: Beat Kuttel, Tommy Scarborough, Kevin Williams, Gary Pace, James Garaghty
  • Publication number: 20160268857
    Abstract: A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia permanent magnet motor may be used to power a drawworks. In some embodiments, the drawworks may be controlled by an active heave compensation controller.
    Type: Application
    Filed: May 19, 2016
    Publication date: September 15, 2016
    Inventors: Gary PACE, Kevin R. Williams, James GARAGHTY, Brian ELLIS
  • Patent number: 9379655
    Abstract: A method for field weakening control of a three phase permanent magnet AC motor in a VFD drive. The VFD drive calculates the three phase voltages to be supplied to the AC motor via a three phase inverter using feedback and feed-forward calculations of quadrature and direct demand currents.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 28, 2016
    Assignee: CANRIG DRILLING TECHNOLOGY
    Inventor: Gary Pace
  • Patent number: 9379584
    Abstract: A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia permanent magnet motor may be used to power a drawworks. In some embodiments, the drawworks may be controlled by an active heave compensation controller.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: June 28, 2016
    Assignee: CANRIG DRILLING TECHNOLOGY LTD.
    Inventors: Gary Pace, Kevin R. Williams, James Garaghty, Brian Ellis
  • Publication number: 20150288310
    Abstract: A method for limiting the torque of a permanent magnet AC motor includes a torque limit controller. The torque limit controller at least in part bases the torque limit on a selected direct voltage limit. The selected direct voltage limit may be used in combination with other torque limit conditions to generate the torque demand for the AC motor.
    Type: Application
    Filed: April 1, 2015
    Publication date: October 8, 2015
    Inventor: Gary PACE
  • Publication number: 20150263575
    Abstract: A low inertia permanent magnet motor includes a stator and rotor. The rotor includes a generally tubular and hollow rotor body coupled to the shaft of the motor by one or more spokes and/or webs. The permanent magnets of the rotor are coupled to the rotor body. In some embodiments, the low inertia permanent magnet motor may be used to power a drawworks. In some embodiments, the drawworks may be controlled by an active heave compensation controller.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Inventors: Gary PACE, Kevin R. Williams, James GARAGHTY, Brian ELLIS
  • Publication number: 20150263650
    Abstract: A predictive landing failsafe system is adapted to slow or stop a permanent magnet AC motor in response to a selected condition, such as a power outage. In some embodiments, the predictive landing failsafe system may short two or more terminals of the AC motor in response to the selected condition. In some embodiments, one or more resistors may be coupled between the two or more terminals, the resistors lowering the short-circuit current and thus making a more smooth stop for the AC motor. In some embodiments, the AC motor may be used in a drawworks.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Inventors: Beat KUTTEL, Gary PACE, Kevin R. WILLIAMS, James GARAGHTY, Tommy SCARBOROUGH
  • Publication number: 20150222121
    Abstract: A power system for an electrical system with highly fluctuating loads is powered by one or more power sources that are slow to react to load changes. The power sources are connected to electrical equipment used on the drill rig which provide active load to the generators. One or more load banks may be positioned to provide passive load to the generators to maintain generally constant generator load, while allowing for instant access to power as active load increases. Generators may be run at 100% capacity, a maximum efficient capacity, or at a high enough level to allow for a sufficiently rapid increase in power output. At least one parameter of a drilling operation may be utilized to anticipate load demand changes.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 6, 2015
    Inventors: Beat KUTTEL, Tommy SCARBOROUGH, Kevin Williams, Gary PACE, James GARAGHTY
  • Publication number: 20150130376
    Abstract: A method for field weakening control of a three phase permanent magnet AC motor in a VFD drive. The VFD drive calculates the three phase voltages to be supplied to the AC motor via a three phase inverter using feedback and feed-forward calculations of quadrature and direct demand currents.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 14, 2015
    Inventor: Gary PACE
  • Publication number: 20130131028
    Abstract: Described herein are methods for modulation of the activity of the carotid body that afford therapeutic benefit for sleep-related breathing disorders and related conditions.
    Type: Application
    Filed: April 11, 2011
    Publication date: May 23, 2013
    Applicants: JOHNS HOPKINS UNIVERSITY, SOVA PHARMACEUTICALS, INC., THE UNIVERSITY OF CHICAGO
    Inventors: Solomon H. Snyder, Moataz M. Gadalla, Nanduri R. Prabhakar, Gregory Stein, Gary Pace
  • Publication number: 20080007318
    Abstract: An adaptive gate drive for an inverter includes control circuitry having a Field Programmable Gate Array (FPGA) and includes power circuitry having a plurality of FETs for operating a switching device, such as a Trench Gate Insulated Gate Bipolar Transistor (IGBT device). The control circuitry provides switching signals for operating the switching device. In addition, the control circuitry receives signals of output current of the IGBT device, temperature of the IGBT device, and DC link voltage. The FPGA has a plurality of operating points stored therein. Each operating point has corresponding parameters for a control signal that is used to control the turn-on or turn-off behavior of the IGBT device. During operation, the control circuitry compares the measured current, voltage and temperature operating points stored in the FPGA and sends the corresponding parameters to the gate drive circuit.
    Type: Application
    Filed: September 24, 2007
    Publication date: January 10, 2008
    Applicant: LETOURNEAU TECHNOLOGIES DRILLING SYSTEMS, INC.
    Inventors: Gary PACE, Larry ROBBINS
  • Patent number: 7274243
    Abstract: An adaptive gate drive for an inverter includes control circuitry having a Field Programmable Gate Array (FPGA) and includes power circuitry having a plurality of FETs for operating a switching device, such as a Trench Gate Insulated Gate Bipolar Transistor (IGBT device). The control circuitry provides switching signals for operating the switching device. In addition, the control circuitry receives signals of output current of the IGBT device, temperature of the IGBT device, and DC link voltage. The FPGA has a plurality of operating points stored therein. Each operating point has corresponding parameters for a control signal that is used to control the turn-on or turn-off behavior of the IGBT device. During operation, the control circuitry compares the measured current, voltage and temperature operating points stored in the FPGA and sends the corresponding parameters to the gate drive circuit.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: September 25, 2007
    Inventors: Gary Pace, Larry Charles Robbins, Jr.
  • Publication number: 20070066520
    Abstract: Forms of epidermal growth factor that are resistant to proteolysis, and gene sequences encoding these forms and having codons optimized for usage by an industrial production organism, are provided.
    Type: Application
    Filed: August 15, 2005
    Publication date: March 22, 2007
    Inventors: Sheila Magil, Susan Jones, Gary Pace, Stephen Brand
  • Publication number: 20070031489
    Abstract: The present invention relates to methods for reducing the risk associated with the administration of opioid analgesics in patients diagnosed or undiagnosed with respiratory illness by administering an analgesic composition comprising a sub-analgesic dosage of a p-opioid agonist selected from the group consisting of morphine, fentanyl, sufentanil, alfentanil, oxymorphone and hydromorphone, or a pharmaceutically acceptable salt thereof, and a sub-analgesic dosage of oxycodone which is a ?2-opioid agonist or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: October 6, 2006
    Publication date: February 8, 2007
    Inventors: Gary Pace, Maree Smith
  • Publication number: 20060210622
    Abstract: This invention disclosure relates to compositions for the delivery of stable surface modified sub-micron and micron sized particles of water-insoluble biologically active substances from a non-aqueous medium that self-disperses on exposure to an aqueous environment.
    Type: Application
    Filed: November 14, 2005
    Publication date: September 21, 2006
    Inventors: Gary Pace, Awadhesh Mishra, Robert Snow
  • Publication number: 20060117407
    Abstract: Methods for transformation of maize with nucleic acid sequences of interest are disclosed. The method involves subjecting immature zygotic embryos or Type I callus to high velocity microprojectile bombardment. The method is capable of producing transformed maize lines of commercial importance and their hybrid combinations.
    Type: Application
    Filed: March 2, 2005
    Publication date: June 1, 2006
    Inventors: Michael Koziel, Nalini Desai, Kelly Lewis, Vance Kramer, Gregory Warren, Steve Evola, Lyle Crossland, Martha Wright, Ellis Merlin, Karen Launis, Steven Rothstein, Cindy Boyce, John Dawson, Erik Dunder, Gary Pace, Jan Suttie, Nadine Carozzi, Annick De Framond, James Linder, Robert Miller, Bruce Skillings, Alan Mousel, Albert Hornbrook, Christopher Clucas, Moez Meghji, Andreas Tanner, Francis Cassagne, Gilles Pollini, Terry Colbert, Francis Cammack