Patents by Inventor Peter Spring
Peter Spring 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: 11937517Abstract: A superconducting quantum computing circuit package (1). The package contains a substrate (2) on which a circuit is formed, the circuit including a plurality of circuit elements. The substrate (2) includes holes (8) arranged between the circuit elements which extend through a thickness of the substrate (2). The package also contains a holder (3) with a surface (9) on which the substrate (2) is received, and a cover (4) arranged on an opposite side of the substrate (2). The holder (3) and the cover (4) are formed from a metal and/or a superconductor. The holder (3) also contains projections (12) arranged on and projecting from the surface (9). The projections (12) protrude through the holes (8) in the substrate (2) and contact the cover (4) so to suppress electromagnetic modes in the frequency range of operation of the quantum computing circuit.Type: GrantFiled: August 13, 2019Date of Patent: March 19, 2024Assignee: OXFORD UNIVERSITY INNOVATION LIMITEDInventors: Peter Spring, Peter Leek
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Publication number: 20230252828Abstract: An on-site test facility and method for validation of an off-road vehicle intervention system onboard an utility vehicle, for example at a mine, using a testing area in the field with a test lane and a computer unit configured to emulate a virtual test object by generating and transmitting a RF-signal corresponding to RF-signal of a real object being in risk of collision with the oversized vehicle when a driver is driving the utility vehicle on the test lane.Type: ApplicationFiled: February 10, 2022Publication date: August 10, 2023Applicant: HEXAGON GEOSYSTEMS SERVICES AGInventors: Xiao RU, Peter SPRING, Linus ARNÖ, Johannes HUBER, Fabien KRITTER
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Publication number: 20210296559Abstract: A superconducting quantum computing circuit package (1). The package contains a substrate (2) on which a circuit is formed, the circuit including a plurality of circuit elements. The substrate (2) includes holes (8) arranged between the circuit elements which extend through a thickness of the substrate (2). The package also contains a holder (3) with a surface (9) on which the substrate (2) is received, and a cover (4) arranged on an opposite side of the substrate (2). The holder (3) and the cover (4) are formed from a metal and/or a superconductor. The holder (3) also contains projections (12) arranged on and projecting from the surface (9). The projections (12) protrude through the holes (8) in the substrate (2) and contact the cover (4) so to suppress electromagnetic modes in the frequency range of operation of the quantum computing circuit.Type: ApplicationFiled: August 13, 2019Publication date: September 23, 2021Inventors: Peter SPRING, Peter LEEK
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Patent number: 9897120Abstract: A hydraulic system for a machine is disclosed. The system may have a pump and a motor driven by pressurized fluid from the pump. An accumulator is configured to receive fluid discharged from the motor and to discharge fluid to the motor. The system may include a first valve to selectively communicate the higher pressure of conduits coupled between the pump and motor to the accumulator. A second valve and a third valve can be used to facilitate charging and discharging of the accumulator. The system may include a controller configured to implement a plurality of modes of operation, which each mode of operation may include a different combination of motor deceleration and motor acceleration segments during which the accumulator receives and discharges fluid, respectively. An input may be used to determine the segment of the work cycle.Type: GrantFiled: June 29, 2015Date of Patent: February 20, 2018Assignee: Caterpillar Inc.Inventors: Jiao Zhang, Tonglin Shang, Peter Spring, Pengfei Ma, Randal Peterson, Rustu Cesur
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Patent number: 9809115Abstract: A method for deriving a fatigue score (100) indicative of a current drowsiness state of an operator (1) measures a plurality of signals (10, 20, 30, 40, 50, 60, 70, 80, 90) and derives a personalized fatigue score (100) for the operator using these signals (10, 20, 30, 40, 50, 60, 70, 80, 90) in a weighted and operator-personalized way.Type: GrantFiled: June 26, 2014Date of Patent: November 7, 2017Assignee: SAFEMINE AGInventors: Urban Mäder, Andrea Boris Schlapbach, Peter Spring
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Patent number: 9388828Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control. The hydraulic control system may further have an accumulator configured to receive fluid from and supply fluid to the swing motor, a charge valve movable to allow fluid flow from the swing motor into the accumulator, and a discharge valve movable to allow fluid flow from the accumulator to the swing motor. The hydraulic control system may additionally have a controller in communication with the at least one control valve, the charge valve, and the discharge valve. The controller may be configured to detect an acceleration of the swing motor, selectively cause the discharge valve to assist the acceleration, and selectively move the charge valve to an open position to recover energy associated with pressure spikes occurring during the acceleration.Type: GrantFiled: December 18, 2012Date of Patent: July 12, 2016Assignee: Caterpillar Inc.Inventors: Bryan J. Hillman, Jiao Zhang, Lawrence C. Tognetti, Peter Spring, Rustu Cesur, Tonglin Shang
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Publication number: 20160137059Abstract: A method for deriving a fatigue score (100) indicative of a current drowsiness state of an operator (1) measures a plurality of signals (10, 20, 30, 40, 50, 60, 70, 80, 90) and derives a personalized fatigue score (100) for the operator using these signals (10, 20, 30, 40, 50, 60, 70, 80, 90) in a weighted and operator-personalized way.Type: ApplicationFiled: June 26, 2014Publication date: May 19, 2016Inventors: Urban MÄDER, Andrea Boris SCHLAPBACH, Peter SPRING
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Publication number: 20150300384Abstract: A hydraulic system for a machine is disclosed. The system may have a pump and a motor driven by pressurized fluid from the pump. An accumulator is configured to receive fluid discharged from the motor and to discharge fluid to the motor. The system may include a first valve to selectively communicate the higher pressure of conduits coupled between the pump and motor to the accumulator. A second valve and a third valve can be used to facilitate charging and discharging of the accumulator. The system may include a controller configured to implement a plurality of modes of operation, which each mode of operation may include a different combination of motor deceleration and motor acceleration segments during which the accumulator receives and discharges fluid, respectively. An input may be used to determine the segment of the work cycle.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Applicant: Caterpillar Inc.Inventors: Jiao Zhang, Tonglin Shang, Peter Spring, Pengfei Ma, Randal Peterson, Rustu Cesur
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Patent number: 9091286Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank. The hydraulic control system may also have a pressure sensor to generate a first signal indicative of a pressure differential across the control valve, an operator input device to generate a second signal indicative of a desired movement of the actuator, and a controller. The controller may be configured to make a first determination of an opening amount of the control valve based on the second signal, and to make a second determination based on the first signal of whether the opening amount will result in overspeeding of the actuator. The controller may also be configured to reduce the opening amount based on the second determination.Type: GrantFiled: December 18, 2012Date of Patent: July 28, 2015Assignee: Caterpillar Inc.Inventors: Rustu Cesur, Jiao Zhang, Tonglin Shang, Bryan J. Hillman, Peter Spring, Lawrence J. Tognetti, Pengfei Ma
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Patent number: 9086081Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control valve configured to control fluid flow between the pump, the swing motor, and the tank. The hydraulic system may also have an accumulator configured to selectively receive pressurized fluid discharged from the swing motor and selectively supply pressurized fluid to the swing motor, at least one accumulator valve, and a controller. The controller may be configured to receive input indicative of a difference between desired and actual speeds of the swing motor, and determine if the swing motor is accelerating or decelerating based on the difference. The controller may also be configured to control the at least one accumulator valve to cause the accumulator to selectively receive or supply pressurized fluid only when the swing motor is accelerating or decelerating.Type: GrantFiled: December 18, 2012Date of Patent: July 21, 2015Assignee: Caterpillar Inc.Inventors: Jiao Zhang, Pengfei Ma, Tonglin Shang, Rustu Cesur, Bryan J. Hillman, Peter Spring, Lawrence J. Tognetti, Randal N. Peterson, Dayao Chen
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Patent number: 9068575Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a work tool movable to perform an excavation cycle having a plurality of segments, a motor configured to swing the work tool during the excavation cycle, and a pump configured to pressurize fluid directed to drive the motor. The hydraulic control system may also have at least one accumulator configured to selectively receive fluid discharged from the motor and to discharge fluid to the motor during the plurality of segments, and a controller configured to implement a plurality of modes of operation. Each of the plurality of modes of operation includes a different combination of segments during which the at least one accumulator receives and discharges fluid.Type: GrantFiled: June 28, 2011Date of Patent: June 30, 2015Assignee: Caterpillar Inc.Inventors: Jiao Zhang, Tonglin Shang, Peter Spring, Pengfei Ma, Randal N. Peterson, Rustu Cesur
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Publication number: 20150101164Abstract: An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Applicant: CATERPILLAR INC.Inventors: Pengfei MA, Jiao ZHANG, Tonglin SHANG, Peter SPRING, Dayao CHEN, Salik A. SYED, John FERRAZ, JR., Randal N. PETERSON
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Patent number: 8919113Abstract: An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor.Type: GrantFiled: June 28, 2011Date of Patent: December 30, 2014Assignee: Caterpillar Inc.Inventors: Pengfei Ma, Jiao Zhang, Tonglin Shang, Peter Spring, Dayao Chen, Salik A. Syed, John Ferraz, Jr., Randal N. Peterson
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Patent number: 8850806Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a work tool movable through segments of an excavation cycle, a motor configured to swing the work tool during the excavation cycle, at least one accumulator configured to selectively receive fluid discharged from the motor and to discharge fluid to the motor during the excavation cycle, and a controller. The controller may be configured to receive input regarding a current excavation cycle of the work tool, and make a determination based on the input that the current excavation cycle is associated with one of a set of known modes of operation. The controller may be further configured to cause the at least one accumulator to receive fluid and discharge fluid during different segments of the excavation cycle based on the determination.Type: GrantFiled: June 28, 2011Date of Patent: October 7, 2014Assignee: Caterpillar Inc.Inventors: Jiao Zhang, Tonglin Shang, Peter Spring, Pengfei Ma, Randal N. Peterson
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Patent number: 8756930Abstract: A hydraulic system for a machine is disclosed. The hydraulic system may have a first pump with variable displacement and being load-sense controlled, and a first hydraulic circuit associated with the first pump. The hydraulic system may also have a second pump with variable displacement and being electro-hydraulically controlled, and a second hydraulic circuit associated with the second pump. The hydraulic system may further have a flow-sharing valve arrangement configured to selectively share fluid flow between the first and second hydraulic circuits.Type: GrantFiled: May 28, 2010Date of Patent: June 24, 2014Assignee: Caterpillar Inc.Inventors: Bryan A. Johnson, Jason L. Brinkman, Lawrence J. Tognetti, Chris R. Cesur, Peter Spring, Jiao Zhang
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Publication number: 20140060022Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control. The hydraulic control system may further have an accumulator configured to receive fluid from and supply fluid to the swing motor, a charge valve movable to allow fluid flow from the swing motor into the accumulator, and a discharge valve movable to allow fluid flow from the accumulator to the swing motor. The hydraulic control system may additionally have a controller in communication with the at least one control valve, the charge valve, and the discharge valve. The controller may be configured to detect an acceleration of the swing motor, selectively cause the discharge valve to assist the acceleration, and selectively move the charge valve to an open position to recover energy associated with pressure spikes occurring during the acceleration.Type: ApplicationFiled: December 18, 2012Publication date: March 6, 2014Applicant: CATERPILLAR INC.Inventors: Bryan J. HILLMAN, Jiao ZHANG, Lawrence C. TOGNETTI, Peter SPRING, Rustu CESUR, Tonglin SHANG
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Publication number: 20140060025Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank. The hydraulic control system may also have a pressure sensor to generate a first signal indicative of a pressure differential across the control valve, an operator input device to generate a second signal indicative of a desired movement of the actuator, and a controller. The controller may be configured to make a first determination of an opening amount of the control valve based on the second signal, and to make a second determination based on the first signal of whether the opening amount will result in overspeeding of the actuator. The controller may also be configured to reduce the opening amount based on the second determination.Type: ApplicationFiled: December 18, 2012Publication date: March 6, 2014Applicant: CATERPILLAR INC.Inventors: Rustu CESUR, Jiao ZHANG, Tonglin SHANG, Bryan J. HILLMAN, Peter SPRING, Lawrence J. TOGNETTI, Pengfei MA
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Publication number: 20140060024Abstract: A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a tank, a pump, a swing motor, and at least one control valve configured to control fluid flow between the pump, the swing motor, and the tank. The hydraulic system may also have an accumulator configured to selectively receive pressurized fluid discharged from the swing motor and selectively supply pressurized fluid to the swing motor, at least one accumulator valve, and a controller. The controller may be configured to receive input indicative of a difference between desired and actual speeds of the swing motor, and determine if the swing motor is accelerating or decelerating based on the difference. The controller may also be configured to control the at least one accumulator valve to cause the accumulator to selectively receive or supply pressurized fluid only when the swing motor is accelerating or decelerating.Type: ApplicationFiled: December 18, 2012Publication date: March 6, 2014Applicant: CATERPILLAR INC.Inventors: Jiao ZHANG, Pengfei MA, Tonglin SHANG, Rustu CESUR, Bryan J. HILLMAN, Peter SPRING, Lawrence J. TOGNETTI, Randal N. PETERSON, Dayao CHEN
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Publication number: 20130000094Abstract: An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Inventors: Pengfei MA, Jiao Zhang, Tonglin Shang, Peter Spring, Dayao Chen, Salik A. Syed, John Ferraz, JR., Randal N. Peterson
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Publication number: 20130000289Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a work tool movable to perform an excavation cycle having a plurality of segments, a motor configured to swing the work tool during the excavation cycle, and a pump configured to pressurize fluid directed to drive the motor. The hydraulic control system may also have at least one accumulator configured to selectively receive fluid discharged from the motor and to discharge fluid to the motor during the plurality of segments, and a controller configured to implement a plurality of modes of operation. Each of the plurality of modes of operation includes a different combination of segments during which the at least one accumulator receives and discharges fluid.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Inventors: Jiao ZHANG, Tonglin Shang, Peter Spring, Pengfei Ma, Randal N. Peterson, Rustu Cesur