Patents by Inventor Tyler Bowman
Tyler Bowman 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: 11754605Abstract: A series tee splitter comprises a primary electromagnetic transmission line and a secondary electromagnetic transmission line that is placed in a series path with the primary electromagnetic transmission line, wherein a load is attached to the end of the secondary electromagnetic transmission line and a network analyzer is connected to opposite ends of the primary electromagnetic transmission line to measure a load impedance. This configuration increases the high impedance measurement limit of the network analyzer normally seen for reflection measurements. The series tee splitter can be electrically small to provide broadband impedance information.Type: GrantFiled: September 20, 2021Date of Patent: September 12, 2023Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Matthew Halligan, Tyler Bowman
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Publication number: 20220099720Abstract: A series tee splitter comprises a primary electromagnetic transmission line and a secondary electromagnetic transmission line that is placed in a series path with the primary electromagnetic transmission line, wherein a load is attached to the end of the secondary electromagnetic transmission line and a network analyzer is connected to opposite ends of the primary electromagnetic transmission line to measure a load impedance. This configuration increases the high impedance measurement limit of the network analyzer normally seen for reflection measurements. The series tee splitter can be electrically small to provide broadband impedance information.Type: ApplicationFiled: September 20, 2021Publication date: March 31, 2022Inventors: Matthew Halligan, Tyler Bowman
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Patent number: 9683498Abstract: A method for operating an internal combustion engine includes monitoring engine parameters using an electronic controller, determining a surge speed limit for the engine based on a compressor map, determining an offset engine speed based on a margin between the surge speed limit and an engine speed, determining a minimum engine speed based on the margin, applying the offset engine speed to an engine speed signal to provide an adjusted engine speed, and applying the adjusted engine speed to a desired engine speed when a speed of the engine approaches the surge speed limit.Type: GrantFiled: May 19, 2015Date of Patent: June 20, 2017Assignee: Caterpillar Inc.Inventors: Urvish Joshi, Travis Barnes, Eric W. Cler, Anand KrishnamurthyGopalan, Eric A. Hutchison, Kirti Tamhane, Andrew N. Schifferer, Tyler Bowman, Kevin Sergott, Matthew Mowers, Daniel R. Puckett
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Patent number: 9551414Abstract: A synchronizer system and method allow synchronization of a plurality of rotating parts by determining a measured or calculated starting relative speed of the plurality of rotating parts, and based on the starting relative speed selecting a predetermined synchronizer force profile from among a plurality of candidate profiles for synchronizing the plurality of parts prior to engagement. The selected profile is retrieved and applied to a synchronizer between the plurality of parts to be engaged, and when the relative speed between the plurality of parts to be engaged becomes substantially zero, the plurality of parts can then be engaged to one another.Type: GrantFiled: June 10, 2011Date of Patent: January 24, 2017Assignee: Caterpillar Inc.Inventors: Tyler Bowman, Brian Lister
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Publication number: 20160341136Abstract: A method for operating an internal combustion engine includes monitoring engine parameters using an electronic controller, determining a surge speed limit for the engine based on a compressor map, determining an offset engine speed based on a margin between the surge speed limit and an engine speed, determining a minimum engine speed based on the margin, applying the offset engine speed to an engine speed signal to provide an adjusted engine speed, and applying the adjusted engine speed to a desired engine speed when a speed of the engine approaches the surge speed limit.Type: ApplicationFiled: May 19, 2015Publication date: November 24, 2016Applicant: Caterpillar Inc.Inventors: Urvish Joshi, Travis Barnes, Eric W. Cler, Anand KrishnamurthyGopalan, Eric A. Hutchison, Kirti Tamhane, Andrew N. Schifferer, Tyler Bowman, Kevin Sergott, Matthew Mowers, Daniel R. Puckett
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Publication number: 20120312656Abstract: A synchronizer system and method allow synchronization of a plurality of rotating parts by determining a measured or calculated starting relative speed of the plurality of rotating parts, and based on the starting relative speed selecting a predetermined synchronizer force profile from among a plurality of candidate profiles for synchronizing the plurality of parts prior to engagement. The selected profile is retrieved and applied to a synchronizer between the plurality of parts to be engaged, and when the relative speed between the plurality of parts to be engaged becomes substantially zero, the plurality of parts can then be engaged to one another.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: CATERPILLAR INC.Inventors: TYLER BOWMAN, BRIAN LISTER
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Patent number: 8205444Abstract: A system and method for variator control employs positively directed electronic make-up and flushing relief valves for more precise torque control of a hydraulic variator, especially during torque reversal, as well as improved cold weather operation. This can improve machine response during periods of severe torque change. The ability to more tightly control variator torque allows more precise torque management algorithms for power control and engine matching purposes. Moreover, the ability to positively control venting of the hydraulic circuit for purposes of fluid cooling allows for more consistent machine response regardless of ambient temperature.Type: GrantFiled: October 21, 2008Date of Patent: June 26, 2012Assignee: Caterpillar Inc.Inventors: Brian D. Kuras, Michael G. Cronin, Frank Anthony DeMarco, Tyler Bowman
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Publication number: 20100095665Abstract: A system and method for variator control employs positively directed electronic make-up and flushing relief valves for more precise torque control of a hydraulic variator, especially during torque reversal, as well as improved cold weather operation. This can improve machine response during periods of severe torque change. The ability to more tightly control variator torque allows more precise torque management algorithms for power control and engine matching purposes. Moreover, the ability to positively control venting of the hydraulic circuit for purposes of fluid cooling allows for more consistent machine response regardless of ambient temperature.Type: ApplicationFiled: October 21, 2008Publication date: April 22, 2010Applicant: Caterpillar Inc.Inventors: Brian D. Kuras, Michael G. Cronin, Frank Anthony DeMarco, Tyler Bowman
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Publication number: 20080294318Abstract: A variator torque control system and method utilize a hydraulic actuator to control the variator output via a torque control map, wherein the values of the torque control map are evaluated and modified during use of the map to improve map accuracy. In an example, errors in the map are evaluated to determine whether a system fault has occurred.Type: ApplicationFiled: May 22, 2007Publication date: November 27, 2008Applicant: Caterpillar Inc.Inventors: BRIAN D. KURAS, FRANK A. DeMARCO, ADAM J. VACCARI, TYLER BOWMAN
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Patent number: 6404296Abstract: A source-coupled oscillator contains two main MESFETs which supply current to respective loads and which have sources connected through a capacitor. Each of the main MESFETs is supplied with a constant current which can be adjusted to vary the frequency of the oscillator. The output signals are derived from the voltage across the loads. The oscillator also contains two differential pairs of MESFETs that change state as the main MESFETs are turned on and off and are connected so as to switch current into one or the other of the loads. Each of the differential pairs is supplied with a constant current. The currents supplied by the differential pairs act as compensating currents and are adjusted so that when the currents through the two main MESFETs are changed to vary the frequency of the oscillator, the total current through the loads remains constant.Type: GrantFiled: December 4, 2000Date of Patent: June 11, 2002Assignee: TriQuint Semiconductor, Inc.Inventors: William H. Davenport, Tyler Bowman
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Publication number: 20020067216Abstract: A source-coupled oscillator contains two main MESFETs which supply current to respective loads and which have sources connected through a capacitor. Each of the main MESFETs is supplied with a constant current which can be adjusted to vary the frequency of the oscillator. The output signals are derived from the voltage across the loads. The oscillator also contains two differential pairs of MESFETs that change state as the main MESFETs are turned on and off and are connected so as to switch current into one or the other of the loads. Each of the differential pairs is supplied with a constant current. The currents supplied by the differential pairs act as compensating currents and are adjusted so that when the currents through the two main MESFETs are changed to vary the frequency of the oscillator, the total current through the loads remains constant.Type: ApplicationFiled: December 4, 2000Publication date: June 6, 2002Inventors: William H. Davenport, Tyler Bowman