Patents by Inventor James Ulrich
James Ulrich 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: 11641167Abstract: A transformerless parallel active rectifier system includes N multiphase common mode inductors directly connected to a shared multiphase AC input with no intervening transformer, and N active rectifiers coupled to respective ones of the N multiphase common mode inductors and having respective DC outputs coupled to a shared DC bus, where N is an integer greater than 1. The N active rectifiers have ground current regulators and are synchronized to provide DPWM switching control signals synchronized to one another to regulate their respective ground currents and concurrently regulate the shared DC bus voltage.Type: GrantFiled: January 14, 2022Date of Patent: May 2, 2023Assignee: Rockwell Automation Technologies, Inc.Inventors: James A. Ulrich, Lixiang Wei, Ahmed Mohamed Sayed Ahmed, Nickolay N. Guskov
-
Publication number: 20220057368Abstract: Structure information for a substance within a volume may be obtained. The structure information may characterize structural non-linearity of the substance within the volume. A structure model for the substance within the volume may be generated based on the structure information and/or other information. The structure model may simulate one or more characteristics of the substance within the volume. Presentation of information on the characteristic(s) of the substance within the volume may be effectuated based on the structure model and/or other information.Type: ApplicationFiled: April 7, 2020Publication date: February 24, 2022Inventors: Marcel REMILLIEUX, Esteban ROUGIER, Zhou LEI, Timothy James ULRICH, Harvey Edwin GOODMAN
-
Publication number: 20220010662Abstract: Strain information may define strain of a material to stress. The strain of the material may be decomposed into classical strain, hysteretic strain, and residual strain. The classical strain, the hysteretic strain, and the residual strain may be used to facilitate modeling of the material. For example, the classical strain, the hysteretic strain, and the residual strain of a rock may be used to facilitate modeling of a subsurface region that includes the rock such as a reservoir simulation to predict hydrocarbon recovery.Type: ApplicationFiled: July 9, 2021Publication date: January 13, 2022Inventors: Robert A. Guyer, Timothy James Ulrich, II, James A. Ten Cate, Harvey Edwin Goodman
-
Patent number: 11086040Abstract: A pulsed sinusoidal acoustic signal transmitted through a subsurface volume of a wellbore may be detected. A time-reversed acoustic signal of the pulsed sinusoidal acoustic signal may be transmitted through the subsurface volume of the wellbore. Transmission of the time-reversed acoustic signal through the subsurface volume of the wellbore may result in generation of focused acoustic signal in the subsurface volume of the wellbore. The focused acoustic signal in the subsurface volume of the wellbore may be detected, and the integrity of the wellbore may be determined based on the focused acoustic signal in the subsurface volume of the wellbore.Type: GrantFiled: September 24, 2020Date of Patent: August 10, 2021Assignees: TRIAD NATIONAL SECURITY, LLC, CHEVRON U.S.A. INC.Inventors: Timothy James Ulrich, II, Harvey Edwin Goodman
-
Patent number: 11067711Abstract: Apparatus (10) and methods for measurement of pore pressure in rock formations through a metal borehole casing (32) after a well is cased and cemented, are described. Such measurements may be accomplished by using the Dynamic Acoustic Elasticity (DAE) method for characterizing nonlinear parameters by perturbing a selected rock formation region with a High Amplitude, Low Frequency (HALF) acoustic strain wave, and probing this region using a Low Amplitude, High Frequency (LAHF) acoustic wave (18), (22). Time reversal techniques (36) may be employed for focusing acoustic energy into the formation in the vicinity of the pipe or open hole. The change in wave speed of the probe pulses as the HALF induced strain wave oscillation propagates through the formation, as a function of the induced strain, may be used to determine the nonlinear elastic parameters ?, ?, ?, and A of the pore pressure, from which the pore pressure may be determined in the region of the HALF wave.Type: GrantFiled: March 26, 2017Date of Patent: July 20, 2021Assignees: TRIAD NATIONAL SECURITY, LLC, CHEVRON U.S.A. INC.Inventors: Harvey E. Goodman, Timothy James Ulrich, II, Robert A. Guyer, Paul A. Johnson, Marcel C. Remillieux, Pierre-Yves Le Bas
-
Patent number: 11029435Abstract: Apparatus and methods for measurement of pore pressure in rock formations through an open, or cemented and/or cased, borehole are described. Such measurements are achieved using the Dynamic Acoustic Elasticity (DAE) method for characterizing nonlinear parameters by perturbing a selected rock formation volume with a High Amplitude, Low Frequency (HALF) acoustic strain wave, and probing this volume using a Low Amplitude, High Frequency (LAHF) acoustic wave. Time reversal techniques may be employed for focusing acoustic energy Into the formation in the vicinity of the pipe or open hole.Type: GrantFiled: October 24, 2017Date of Patent: June 8, 2021Assignees: TRIAD NATIONAL SECURITY, LLC, CHEVRON U.S.A. INC.Inventors: Harvey Edwin Goodman, Timothy James Ulrich, II, Peter Roberts, Marcel C. Remillieux, Paul Allan Johnson, Pierre-Yves Le Bas, Robert A. Guyer
-
Publication number: 20210018643Abstract: A pulsed sinusoidal acoustic signal transmitted through a subsurface volume of a wellbore may be detected. A time-reversed acoustic signal of the pulsed sinusoidal acoustic signal may be transmitted through the subsurface volume of the wellbore. Transmission of the time-reversed acoustic signal through the subsurface volume of the wellbore may result in generation of focused acoustic signal in the subsurface volume of the wellbore. The focused acoustic signal in the subsurface volume of the wellbore may be detected, and the integrity of the wellbore may be determined based on the focused acoustic signal in the subsurface volume of the wellbore.Type: ApplicationFiled: September 24, 2020Publication date: January 21, 2021Inventors: Timothy James ULRICH, II, Harvey Edwin GOODMAN
-
Patent number: 10476381Abstract: Power conversion systems and filters therefor include conductive busbars, a first low frequency capacitor circuit coupled with the busbars at a first location proximate a filter input, a first inductor circuit with common mode cores extending around the busbars at a second location between the first location and a filter output, a second low frequency capacitor circuit coupled with the busbars at a third location between the second location and the filter output, a second inductor circuit with second common mode cores extending around the busbars at a fourth location between the third location and the filter output, a third low-frequency capacitor circuit coupled with the busbars at a fifth location between the fourth location and the filter output, and a high frequency fourth capacitor circuit, coupled with one of the busbars at the fifth location.Type: GrantFiled: November 13, 2018Date of Patent: November 12, 2019Assignee: Rockwell Automation Technologies, Inc.Inventors: Christian S. Sartler, Jeremy J. Keegan, James A. Ulrich, Amanda D. Steven, Lixiang Wei
-
Patent number: 10389213Abstract: Disclosed examples include apparatus to couple a motor drive to a motor, including a cable with a first end coupled with an output of a motor drive, a second end coupled with a motor, a plurality of conductors to convey an output signal of the motor drive between the first and second ends to drive the motor, and a plurality of shields, with a conductive junction to couple tap points of at least two of the shields together. Resistors can be used to connect the tap points to the conductive junction to provide an impedance in series with the corresponding shield to reduce voltage stress to the motor or the cable. In certain examples, the shields include a semiconductor material to provide an impedance between the first end and the conductive junction to reduce voltage stress to the motor or the cable.Type: GrantFiled: October 14, 2016Date of Patent: August 20, 2019Assignee: Rockwell Automation Technologies, Inc.Inventors: Yuan Xiao, Navid RezA Zargari, Lixiang Wei, James A. Ulrich
-
Publication number: 20180183348Abstract: Power conversion systems, discharge circuits and methods are disclosed for discharging a DC bus conditioner capacitor connected between a neutral node and a first reference node in a DC bus circuit of a power conversion system, in which a DC bus voltage of the power conversion system is monitored, and a discharge control DC power supply is activated in response to the DC bus voltage transitioning below a first threshold voltage to activate a switching circuit to connect a discharge resistor between the first reference node and a DC bus terminal of the DC bus circuit to at least partially discharge the conditioner capacitor through the discharge resistor.Type: ApplicationFiled: December 23, 2016Publication date: June 28, 2018Applicant: Rockwell Automation Technologies, Inc.Inventors: Jiangang Hu, Lixiang Wei, James A. Ulrich
-
Patent number: 10008952Abstract: Power conversion systems, discharge circuits and methods are disclosed for discharging a DC bus conditioner capacitor connected between a neutral node and a first reference node in a DC bus circuit of a power conversion system, in which a DC bus voltage of the power conversion system is monitored, and a discharge control DC power supply is activated in response to the DC bus voltage transitioning below a first threshold voltage to activate a switching circuit to connect a discharge resistor between the first reference node and a DC bus terminal of the DC bus circuit to at least partially discharge the conditioner capacitor through the discharge resistor.Type: GrantFiled: December 23, 2016Date of Patent: June 26, 2018Assignee: Rockwell Automation Technologies, Inc.Inventors: Jiangang Hu, Lixiang Wei, James A. Ulrich
-
Publication number: 20180083514Abstract: The disclosed apparatus provides a simple and low cost solution of reducing voltage stress on AC motors and cables in VFD fed motor systems without connecting apparatus to live circuits. Disclosed examples include apparatus to couple a motor drive to a motor, including a cable with a first end coupled with an output of a motor drive, a second end coupled with a motor, a plurality of conductors to convey an output signal of the motor drive between the first and second ends to drive the motor, and a plurality of shields, with a conductive junction to couple tap points of at least two of the shields together. Resistors can be used to connect the tap points to the conductive junction to provide an impedance in series with the corresponding shield to reduce voltage stress to the motor or the cable. In certain examples, the shields include a semiconductor material to provide an impedance between the first end and the conductive junction to reduce voltage stress to the motor or the cable.Type: ApplicationFiled: October 14, 2016Publication date: March 22, 2018Applicant: Rockwell Automation Technologies, Inc.Inventors: Yuan Xiao, Navid Reza Zargari, Lixiang Wei, James A. Ulrich
-
Publication number: 20170282280Abstract: A welding-type control system including configurable hardware, a hardware configuration memory device that configures the configurable hardware when loaded with configuration data, a processor, an input portal via which the processor can receive a file with the configuration data, and a memory with instructions that when executed by the processor cause the processor to transfer the configuration data in the file to the memory device. A controlled system including such a welding-type control system includes a welding system, a cladding system or a plasma cutting system.Type: ApplicationFiled: March 29, 2016Publication date: October 5, 2017Inventors: James Ulrich, Brian Brown, Eric Bollerman
-
Patent number: 9188045Abstract: A method of monitoring an exhaust gas sensor coupled in an engine exhaust in an engine is provided. The method includes adjusting engine operation responsive to exhaust gas sensor degradation, the degradation identified during deceleration fuel shut-off (DFSO) and compensated based on whether vapor purge operation is occurring in the engine during DFSO.Type: GrantFiled: August 30, 2012Date of Patent: November 17, 2015Assignee: Ford Global Technologies, LLCInventors: Adam Nathan Banker, Michael James Ulrich, Imad Hassan Makki, James Michael Kerns
-
Publication number: 20150145462Abstract: Parallel converter current imbalance control apparatus and methods in which individual converter AC currents are measured for each phase, and the AC voltage control modulation indices associated with the converters having the highest and lowest AC currents for a given phase are adjusted to counteract current imbalance between the converters.Type: ApplicationFiled: November 25, 2013Publication date: May 28, 2015Applicant: Rockwell Automation Technologies, Inc.Inventors: James A. Ulrich, Lixiang Wei, Jerome D. Rabe, Joseph D. Riley
-
Patent number: 8693227Abstract: An inverter controller comprising a current regulator unit, a voltage regulator unit coupled to the current regulator unit, an inverter unit coupled to the voltage regulator unit, and a drive unit controlled by the inverter unit.Type: GrantFiled: September 19, 2011Date of Patent: April 8, 2014Assignee: DRS Power & Control Technologies, Inc.Inventors: David J. Gritter, James Ulrich
-
Publication number: 20140067235Abstract: A method of monitoring an exhaust gas sensor coupled in an engine exhaust in an engine is provided. The method includes adjusting engine operation responsive to exhaust gas sensor degradation, the degradation identified during deceleration fuel shut-off (DFSO) and compensated based on whether vapor purge operation is occurring in the engine during DFSO.Type: ApplicationFiled: August 30, 2012Publication date: March 6, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Adam Nathan Banker, Michael James Ulrich, Imad Hassan Makki, James Michael Kerns
-
Publication number: 20130070505Abstract: An inverter controller comprising a current regulator unit, a voltage regulator unit coupled to the current regulator unit, an inverter unit coupled to the voltage regulator unit, and a drive unit controlled by the inverter unit.Type: ApplicationFiled: September 19, 2011Publication date: March 21, 2013Applicant: DRS POWER & CONTROL TECHNOLOGIES, INC.Inventors: David J. Gritter, James Ulrich
-
Publication number: 20120317006Abstract: A method of creating a finalized invoice by creating a preliminary invoice showing activities accomplished, submitting the preliminary invoice to an automated rules engine, searching the preliminary invoice for keywords that define possible violations of a company's litigation billing guidelines, highlighting any invoice task that contains identified keywords that would define a possible violation of a company's litigation billing guidelines, querying a user to accept changes based upon identified keywords, and modifying the preliminary invoice into the finalized invoice after accepting the changes. Using the searchable database to create reports that provide average rates charged by law firms on specific types of legal matters in all geographic areas, reports to evaluate which tasks are not being fully compensated by a specific company or legal auditing system, reports to evaluate the average cost to defend specific types of cases in specific jurisdictions.Type: ApplicationFiled: July 3, 2012Publication date: December 13, 2012Applicant: INVOICE COMPLIANCE EXPERTSInventors: James Ulrich, Stuart Wexler, Mark Kowit
-
Patent number: 8244610Abstract: A method of creating a finalized invoice, having steps of creating a preliminary invoice, the invoice including individual tasks for activities accomplished, submitting the preliminary invoice to an automated rules engine, searching the preliminary invoice for keywords that define possible violations of a company's litigation billing guidelines, highlighting any invoice task that contains identified keywords that would define a possible violation of a company's litigation billing guidelines, querying a user to accept changes to an invoice task based upon the identified keywords, and modifying the preliminary invoice into the finalized invoice after the accepted changes have been conducted after the querying of the user.Type: GrantFiled: September 1, 2010Date of Patent: August 14, 2012Assignee: Invoice Compliance ExpertsInventors: James Ulrich, Stuart Wexler, Mark Kowit