Patents by Inventor Curtis Johnson
Curtis Johnson 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).
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Patent number: 11451170Abstract: A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.Type: GrantFiled: December 14, 2020Date of Patent: September 20, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Gary Williams, Alexey Tyshko, Brian Reeves, Curtis Johnson, Nathan Etter, Mohamed Ouf, Mahendra Joshi
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Patent number: 11255152Abstract: An inner tube plug for plugging a diamond drill hole. The plug assembly comprises a compressible plunger component attached to one end of a body component, plug feet radially disposed around the body component, and a torsion spring disposed between pairs of adjacent plug feet. The inner tube plug is used to perform down-hole orientation correction of a drill bole, zone bypassing, and completion of a drill hole.Type: GrantFiled: May 22, 2018Date of Patent: February 22, 2022Inventors: Curtis Johnson, Mark Seilstad, Alex Christie
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Publication number: 20210184603Abstract: A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.Type: ApplicationFiled: December 14, 2020Publication date: June 17, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Gary Williams, Alexey Tyshko, Brian Reeves, Curtis Johnson, Nathan Etter, Mohamed Ouf, Mahendra Joshi
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Publication number: 20200224512Abstract: An inner lube plug for plugging a diamond drill hole, the plug assembly comprising a body component having proximal and distal ends; a compressible plunger component attached to the distal end of the body component by attachment means; a plurality of plug feet disposed radially around the body component; and a torsion spring disposed between each pair of adjacent plug feet, as well as methods for using the inner tube plug to perform down-hole orientation correction of a drill hole, bypassing (if an impassable zone, and completion of a drill hole.Type: ApplicationFiled: May 22, 2018Publication date: July 16, 2020Inventors: Curtis JOHNSON, Mark SEILSTAD, Alex CHRISTIE
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Patent number: 10261157Abstract: Aspects of the subject disclosure include a system that applies magnetic resonance elastography to a sample to obtain uncorrected k-space data where the magnetic resonance elastography utilizes a multi-shot spin-echo sequence with variable density spiral readout gradients, and adjusts the uncorrected k-space data to corrected k-space data by adjusting a k-space trajectory by shifting a center point for each shot to a new center point according to signal intensity and by adjusting a phase for each shot based on a phase offset that is determined according to the signal intensity.Type: GrantFiled: February 12, 2014Date of Patent: April 16, 2019Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISInventors: Bradley Sutton, John G. Georgiadis, Curtis Johnson
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Patent number: 10255237Abstract: A system includes transmission of a first transaction identifier and a first commit identifier to a first data storage system, the first commit identifier identifying a first data snapshot of the first data storage system, transmission of a first query to the first data storage system, transmission of a first prepare instruction and the first transaction identifier to the first data storage system, determination that a first ready response has been received from the first data storage system in response to the first prepare instruction, transmission, in response to the determination, of a first commit instruction and the first transaction identifier to the first data storage system, and reception of a second commit identifier from the first data storage system, the second commit identifier identifying a second data snapshot of the first data storage system.Type: GrantFiled: July 6, 2016Date of Patent: April 9, 2019Assignee: SAP SEInventors: Curtis Johnson, Kyu Hwan Kim, Karim Khamis, Kurt Deschler
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Publication number: 20180011895Abstract: A system includes transmission of a first transaction identifier and a first commit identifier to a first data storage system, the first commit identifier identifying a first data snapshot of the first data storage system, transmission of a first query to the first data storage system, transmission of a first prepare instruction and the first transaction identifier to the first data storage system, determination that a first ready response has been received from the first data storage system in response to the first prepare instruction, transmission, in response to the determination, of a first commit instruction and the first transaction identifier to the first data storage system, and reception of a second commit identifier from the first data storage system, the second commit identifier identifying a second data snapshot of the first data storage system.Type: ApplicationFiled: July 6, 2016Publication date: January 11, 2018Inventors: Curtis Johnson, Kyu Hwan Kim, Karim Khamis, Kurt Deschler
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Patent number: 9611695Abstract: A downhole tool assembly for use in directional drilling operations. The assembly has a housing, a chuck, a cutting tool, a hub, and an elongate drive member. The housing has a spindle for supporting the hub and chuck for rotation thereon. The chuck is connected to the hub and has a non-circular interior surface and a box for supporting a cutting tool for rotation with the chuck. The elongate drive member is disposed within the housing, the hub, and the chuck. The drive member is operatively connected to the inner member of a dual-member drill string for rotation independently of the housing. The drive member has a non-circular external surface corresponding to the non-circular interior surface of the chuck. The pin end of the drive is slidably receivable in connector free torque-transmitting engagement with the interior surface of the chuck to drive rotation of the cutting tool, chuck, and hub independently of the housing.Type: GrantFiled: April 14, 2014Date of Patent: April 4, 2017Assignee: The Charles Machine Works, Inc.Inventors: Greg L. Slaughter, Jr., Travis W. Woodson, Curtis Johnson
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Patent number: 9104731Abstract: A system, method, and computer program product are provided for performing a join operation between a local table at a local server and a remote table at a remote server. In accordance with an embodiment of the present invention, a query instruction to join the local table and the remote table is received at the remote server. Qualifying rows of the local table are then retrieved to the remote server, and the remote table is joined with the qualifying rows to generate a result table, which is then sent to the local server.Type: GrantFiled: July 10, 2008Date of Patent: August 11, 2015Assignee: SYBASE, INC.Inventors: Curtis Johnson, Steve Olson, Victor Mesenzeff, Sudipto Chowdhuri
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Publication number: 20140305709Abstract: A downhole tool assembly for use in directional drilling operations. The assembly has a housing, a chuck, a cutting tool, a hub, and an elongate drive member. The housing has a spindle for supporting the hub and chuck for rotation thereon. The chuck is connected to the hub and has a non-circular interior surface and a box for supporting a cutting tool for rotation with the chuck. The elongate drive member is disposed within the housing, the hub, and the chuck. The drive member is operatively connected to the inner member of a dual-member drill string for rotation independently of the housing. The drive member has a non-circular external surface corresponding to the non-circular interior surface of the chuck. The pin end of the drive is slidably receivable in connector free torque-transmitting engagement with the interior surface of the chuck to drive rotation of the cutting tool, chuck, and hub independently of the housing.Type: ApplicationFiled: April 14, 2014Publication date: October 16, 2014Applicant: The Charles Machine Works, Inc.Inventors: Greg L. Slaughter, JR., Travis W. Woodson, Curtis Johnson
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Publication number: 20140232395Abstract: Aspects of the subject disclosure may include, for example, a system that applies magnetic resonance elastography to a sample to obtain uncorrected k-space data where the magnetic resonance elastography utilizes a multi-shot spin-echo sequence with variable density spiral readout gradients, and adjusts the uncorrected k-space data to corrected k-space data by adjusting a k-space trajectory by shifting a center point for each shot to a new center point according to signal intensity and by adjusting a phase for each shot based on a phase offset that is determined according to the signal intensity. Other embodiments are disclosed.Type: ApplicationFiled: February 12, 2014Publication date: August 21, 2014Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISInventors: Bradley Sutton, John G. Georgiadis, Curtis Johnson
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Patent number: 8333172Abstract: In one aspect, the present disclosure is directed to a method for controlling operation of an electric water pump configured to circulate a cooling fluid. The method may include detecting a startup of an electric power source associated with the electric water pump. In addition, the method may include monitoring a voltage available to the electric water pump in response to the detected startup of the power source. The method may also include providing an activation signal to the electric water pump if the monitored voltage is equal to or greater than a first threshold voltage.Type: GrantFiled: December 22, 2009Date of Patent: December 18, 2012Assignee: Caterpillar Inc.Inventors: Eric Andris, Bob Lindsey, Curtis Johnson, Bruce Unger, Michael Betz
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Patent number: 7910158Abstract: The present invention provides high-throughput systems and methods for the fabrication and evaluation of electrode and electrolyte materials for solid oxide fuel cells. The present invention includes systems and methods for synthesizing and optimizing the performance of electrodes and electrode-electrolyte combinations and utilizes small-scale techniques to perform such optimization based on chemical composition and variable processing. Advantageously, rapid device performance systems and methods coupled with structural and surface systems and methods allow for an increased discovery rate of new materials for solid oxide fuel cells.Type: GrantFiled: October 10, 2002Date of Patent: March 22, 2011Assignee: General Electric CompanyInventors: John Lemmon, Chang Wei, Venkat Venkataramani, James Ruud, Wayne Hasz, Anthony Thompson, Curtis Johnson, Oltea Siclovan, Canan Hardwicke, Stephen Rutkowski, Melvin Jackson, Michael Pilliod
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Patent number: 7771159Abstract: A high temperature seal that may include an interior region comprising a material that swells when exposed to a high temperature environment and at least one projection that is able to be inserted into a slot, and a coating that substantially prevents swelling to coated areas of the interior region. The coating may be disposed upon an exterior surface of the interior region such that a distal end of at least one projection remains at least partially uncoated and the remainder of the interior region is substantially covered by the coating. The interior region may include a ceramic matrix composite.Type: GrantFiled: October 16, 2006Date of Patent: August 10, 2010Assignee: General Electric CompanyInventors: Curtis Johnson, Kevin L. Bruce, Ronald Ralph Cairo
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Patent number: 7761254Abstract: A machine having an operator interface for requesting an action from an actuator of the machine includes a movable component of the operator interface. The movable component is movable among at least two positions. One of a magnet and a Hall effect sensor is positioned to move in response to movement of the movable component. The other of the magnet and the Hall effect sensor has a stationary position relative to the movable component. A pulse width modulator is operably coupled to the Hall effect sensor for producing a first pulse width modulated signal. The first pulse width modulated signal is altered in response to movement of one of the Hall effect sensor and the magnet relative to the other. An electronic controller is in communication with the pulse width modulator and the actuator and is configured to actuate the actuator in response to evaluation of the first pulse width modulated signal.Type: GrantFiled: May 11, 2007Date of Patent: July 20, 2010Assignee: Caterpillar IncInventors: Stephen Fouts, Matthew Vande Wiele, Rex Glover, Curtis Johnson, Kenneth Her, Roger Obourn, Dan Shearer
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Publication number: 20100155036Abstract: In one aspect, the present disclosure is directed to a method for controlling operation of an electric water pump configured to circulate a cooling fluid. The method may include detecting a startup of an electric power source associated with the electric water pump. In addition, the method may include monitoring a voltage available to the electric water pump in response to the detected startup of the power source. The method may also include providing an activation signal to the electric water pump if the monitored voltage is equal to or greater than a first threshold voltage.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Inventors: Eric Andris, Bob Lindsey, Curtis Johnson, Bruce Unger, Michael Betz
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Patent number: 7701203Abstract: A method of sensing a position of a movable component of an operator interface includes a step of receiving a first signal from a first Hall effect sensor and a second signal from a second Hall effect sensor. The method also includes a step of determining the position of the movable component based on the first signal and the second signal if the first and second signals represent expected values. The method includes a further step of determining the position of the movable component based on one of the first and second signals if the other of the first and second signals represents an unexpected value.Type: GrantFiled: May 11, 2007Date of Patent: April 20, 2010Assignee: Caterpillar Inc.Inventors: Stephen Fouts, Curtis Johnson, Kenneth Her, Roger Obourn, Robert Talley, Dan Shearer
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Publication number: 20100010976Abstract: A system, method, and computer program product are provided for performing a join operation between a local table at a local server and a remote table at a remote server. In accordance with an embodiment of the present invention, a query instruction to join the local table and the remote table is received at the remote server. Qualifying rows of the local table are then retrieved to the remote server, and the remote table is joined with the qualifying rows to generate a result table, which is then sent to the local server.Type: ApplicationFiled: July 10, 2008Publication date: January 14, 2010Applicant: Sybase, Inc.Inventors: Curtis Johnson, Steve Olson, Victor Mesenzeff, Sudipto Chowdhuri
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Publication number: 20080278218Abstract: A machine having an operator interface for requesting an action from an actuator of the machine includes a movable component of the operator interface. The movable component is movable among at least two positions. One of a magnet and a Hall effect sensor is positioned to move in response to movement of the movable component. The other of the magnet and the Hall effect sensor has a stationary position relative to the movable component. A pulse width modulator is operably coupled to the Hall effect sensor for producing a first pulse width modulated signal. The first pulse width modulated signal is altered in response to movement of one of the Hall effect sensor and the magnet relative to the other. An electronic controller is in communication with the pulse width modulator and the actuator and is configured to actuate the actuator in response to evaluation of the first pulse width modulated signal.Type: ApplicationFiled: May 11, 2007Publication date: November 13, 2008Inventors: Stephen Fouts, Matthew Vande Wiele, Rex Glover, Curtis Johnson, Kenneth Her, Roger Obourn, Dan Shearer
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Publication number: 20080278148Abstract: A method of sensing a position of a movable component of an operator interface includes a step of receiving a first signal from a first Hall effect sensor and a second signal from a second Hall effect sensor. The method also includes a step of determining the position of the movable component based on the first signal and the second signal if the first and second signals represent expected values. The method includes a further step of determining the position of the movable component based on one of the first and second signals if the other of the first and second signals represents an unexpected value.Type: ApplicationFiled: May 11, 2007Publication date: November 13, 2008Inventors: Stephen Fouts, Curtis Johnson, Kenneth Her, Roger Obourn, Robert Talley, Dan Shearer