Patents by Inventor Devendra Patil

Devendra Patil 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).

  • INVERTER CONTROL
    Publication number: 20240039392
    Abstract: A power system including an inverter comprising an LCL filter is disclosed. The LCL filter includes a first inductor, a capacitor, and a second inductor. The power system further includes a controller. The controller is configured to determine an electrical characteristic of an output of the inverter. It is further configured to, based at least in part on the determined characteristic of the output of the inverter, dynamically adjust damping of the LCL filter.
    Type: Application
    Filed: July 3, 2023
    Publication date: February 1, 2024
    Inventors: Devendra Patil, Mark Holveck
  • Systems and methods for disruption of biofilm and algal growth
    Patent number: 11833554
    Abstract: Systems and methods for the ultrasonic disruption of biofilm and algae growth on underwater structures utilize an ultrasonic actuator that produces a natural frequency in the ultrasonic range. In some embodiments, the ultrasonic actuator includes one or more piezoelectric transducers.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: December 5, 2023
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Gangbing Song, Siu Chun Michael Ho, Devendra Patil
  • Resonant power converter for wide voltage switching
    Patent number: 11777411
    Abstract: A resonant converter device comprising a selectable primary winding comprising a plurality of circuit legs, the selectable primary winding comprising one or more of a tapped primary winding or a plurality of switchable primary windings. At least one secondary winding coupled to the selectable primary winding to form a resonant transformer. At least one resonant inductor coupled to at least one of the plurality of circuit legs. A plurality of resonant capacitors, each circuit leg comprising at least a respective one of the plurality of resonant capacitors, and at least a second resonant capacitor of the plurality of resonant capacitors coupled within the second circuit leg. And, one or more switching devices connected to the resonant transformer and configured to selectively vary a resonant impedance of the resonant converter device when a voltage inputted to the resonant converter device varies.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: October 3, 2023
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Rohit Baranwal, Devendra Patil, Zhe Zhang, Lewei Qian, Miroslav Horejs, Guangqi Zhu
  • DYNAMIC ADJUSTMENT OF DAMPING OF A FILTER OF AN INVERTER
    Publication number: 20230283167
    Abstract: A power system including an inverter comprising an LCL filter is disclosed. The LCL filter includes a first inductor, a capacitor, and a second inductor. The power system further includes a controller. The controller is configured to determine an electrical characteristic of an output of the inverter. It is further configured to, based at least in part on the determined characteristic of the output of the inverter, dynamically adjust damping of the LCL filter.
    Type: Application
    Filed: October 13, 2022
    Publication date: September 7, 2023
    Inventors: Devendra Patil, Mark Holveck
  • Dynamic adjustment of damping of a filter of an inverter
    Patent number: 11742744
    Abstract: A power system including an inverter comprising an LCL filter is disclosed. The LCL filter includes a first inductor, a capacitor, and a second inductor. The power system further includes a controller. The controller is configured to determine an electrical characteristic of an output of the inverter. It is further configured to, based at least in part on the determined characteristic of the output of the inverter, dynamically adjust damping of the LCL filter.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: August 29, 2023
    Assignee: Lunar Energy, Inc.
    Inventors: Devendra Patil, Mark Holveck
  • SYSTEMS AND METHODS FOR DISRUPTION OF BIOFILM AND ALGAL GROWTH
    Publication number: 20230054218
    Abstract: Systems and methods for the ultrasonic disruption of biofilm and algae growth on underwater structures utilize an ultrasonic actuator that produces a natural frequency in the ultrasonic range. In some embodiments, the ultrasonic actuator includes one or more piezoelectric transducers.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 23, 2023
    Applicant: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Gangbing Song, Siu Chun Michael Ho, Devendra Patil
  • CONTACTOR DAMAGE AND DIAGNOSTICS
    Publication number: 20220337070
    Abstract: A method includes interpreting a contactor open event and a contactor load value for a contactor positioned on a motive power circuit for a mobile application, determining that a contactor opening event under load has occurred in response to the contactor open event and the contactor load value, and updating a contactor wear condition in response to the contactor opening event under load, wherein updating the contactor wear condition comprises accumulating a number of the contactor opening events under load.
    Type: Application
    Filed: May 5, 2022
    Publication date: October 20, 2022
    Inventors: Justin Keith Griffiths, Nilesh Surase, Ritika Shetty, Shalini Tripathy, Somdut Dey, Madhavi Gupta, Mayura Madane, Sadiya Qureshi, Toseed Khan, Amit Chavan, Kumar Prasad Telikepalli, Atul Solvande, Hao Wang, Jiong Chen, Yueyue Deng, Jason Carroll, Srinivasan Arjun Tekalur, Jacob William Green, Ashok Chakravarthi Kandru, Cheng Luo, Tianyang Jiang, Cheng Wan, Ye Zhu, John Trublowski, Robert Stephen Douglass, Rajen Modi, Nilay Mehta, Laura Natali Valencia Fritsch, Han Li, Dongxin JIn, Lewei Qian, Jun Li, Hongrae Kim, Daniel R. Ouwenga, Patrick Herranz, Miroslav Horejs, Rohit Baranwal, Zhe Zhang, Martin Wayne Mensch, Brandon William Fisher, Austin Robert Zurface, Jeff Howard Urian, James David, Bharath Kumar Suda, Asheesh Kumar Soni, Rene Guy Gallet, Michael Scott Sullivan, Karsten Gerving, Guido Völlmar, Gerd Schmitz, Christoph Bausch, Ute Molitor, Lutz Friedrichsen, Kai Schroeder, Julia Otte, Madeline Philipsohn, Norbert Roesner, Volker Lang, Johannes Meissner, Paolo D'Amico, Jalpa Shah, Meng Wang, Damrongrit Piyabongkarn, Niles Stephen Ramseyer, Dennis Dukaric, Matt Haylock, Anvaya R. Hingangave, Devendra Patil
  • RESONANT POWER CONVERTER FOR WIDE VOLTAGE SWITCHING
    Publication number: 20220286055
    Abstract: A resonant converter device comprising a selectable primary winding comprising a plurality of circuit legs, the selectable primary winding comprising one or more of a tapped primary winding or a plurality of switchable primary windings. At least one secondary winding coupled to the selectable primary winding to form a resonant transformer. At least one resonant inductor coupled to at least one of the plurality of circuit legs. A plurality of resonant capacitors, each circuit leg comprising at least a respective one of the plurality of resonant capacitors, and at least a second resonant capacitor of the plurality of resonant capacitors coupled within the second circuit leg. And, one or more switching devices connected to the resonant transformer and configured to selectively vary a resonant impedance of the resonant converter device when a voltage inputted to the resonant converter device varies.
    Type: Application
    Filed: August 3, 2020
    Publication date: September 8, 2022
    Applicant: Eaton Intelligent Power Limited
    Inventors: Rohit Baranwal, Devendra Patil, Zhe Zhang, Lewei Qian, Miroslav Horejs, Guangqi Zhu
  • Systems and method utilizing piezoelectric materials to mitigate or eliminate stick-slip during drilling
    Patent number: 11028659
    Abstract: Improved drilling systems and methods may include piezoelectric actuator(s) in a drill string at one or more locations to minimize or eliminate stick-slip while drilling. For example, piezoelectric actuators may be incorporated into the rock bit or drill bit in the openings in the bit body for receiving the cutters. As another example, the piezoelectric actuators may be incorporated into an independent module that is place on or in the drill string. The independent module may be placed between the top drive and the drill bit or at the top of the drill string near a top drive.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 8, 2021
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Gangbing Song, Devendra Patil, Qingzhao Kong, Robello Samuel
  • SYSTEMS AND METHODS FOR DISRUPTION OF BIOFILM AND ALGAL GROWTH
    Publication number: 20210078052
    Abstract: Systems and methods for the ultrasonic disruption of biofilm and algae growth on underwater structures utilize an ultrasonic actuator (10) that produces a natural frequency in the ultrasonic range. In some embodiments, the ultrasonic actuator (10) includes one or more piezoelectric transducers (110).
    Type: Application
    Filed: March 20, 2018
    Publication date: March 18, 2021
    Applicant: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Gangbing Song, Siu Chun Michael Ho, Devendra Patil
  • POWER DISTRIBUTION AND CIRCUIT PROTECTION FOR A MOBILE APPLICATION HAVING A HIGH EFFICIENCY INVERTER
    Publication number: 20200274375
    Abstract: A power electronics assembly for a mobile application includes a first power electronics component selectively coupled to a high source on a first side and coupled to a high voltage battery on a second side, a second power electronics component selectively coupled to one of a low load or a low voltage battery on a first side and coupled to the high voltage battery on a second side; and a controller, including an operating mode circuit structured to determine a discharge operating mode for the mobile application, a power electronics configuration circuit structured to provide a switch state value for the first power electronics component and the second power electronics component in response to the discharge operating mode, and wherein the first power electronics component and the second power electronics component are responsive to the switch state value to coupled selected ones of the high source, low load, and low voltage battery to the high voltage battery.
    Type: Application
    Filed: March 23, 2020
    Publication date: August 27, 2020
    Inventors: Justin Keith Griffiths, Nilesh Surase, Ritika Shetty, Shalini Tripathy, Somdut Dey, Madhavi Gupta, Mayura Madane, Sadiya Qureshi, Toseed Khan, Amit Chavan, Kumar Prasad Telikepalli, Atul Solvande, Hao Wang, Jiong Chen, Yueyue Deng, Jason Carroll, Srinivasan Arjun Tekalur, Jacob William Green, Chakravarthi Kandru, Cheng Luo, Tianyang Jiang, Cheng Wan, Ye Zhu, John Trublowski, Robert Stephen Douglass, Rajen Modi, Nilay Mehta, Laura Natali Valencia Fritsch, Han Li, Dongxin Jin, Lewei Qian, Jun Li, Hongrae Kim, Daniel R. Ouwenga, Patrick Herranz, Miroslav Horejs, Rohit Baranwal, Zhe Zhang, Martin Wayne Mensch, Brandon William Fisher, Austin Robert Zurface, Jeff Howard Urian, James David, Bharath Kumar Suda, Asheesh Kumar Soni, Rene Guy Gallet, Michael Scott Sullivan, Karsten Gerving, Guido Völlmar, Gerd Schmitz, Christoph Bausch, Ute Molitor, Lutz Friedrichsen, Kai Schroeder, Julia Otte, Madeline Philipsohn, Norbert Roesner, Volker Lang, Johannes Meissner, Paolo D'Amico, Jalpa Shah, Meng Wang, Damrongrit Piyabongkarn, Niles Stephen Ramseyer, Dennis Dukaric, Matt Haylock, Anvaya R. Hingangave, Devendra Patil
  • SYSTEMS AND METHOD UTILIZING PIEZOELECTRIC MATERIALS TO MITIGATE OR ELIMINATE STICK-SLIP DURING DRILLING
    Publication number: 20190153800
    Abstract: Improved drilling systems and methods may include piezoelectric actuator(s) in a drill string at one or more locations to minimize or eliminate stick-slip while drilling. For example, piezoelectric actuators may be incorporated into the rock bit or drill bit in the openings in the bit body for receiving the cutters. As another example, the piezoelectric actuators may be incorporated into an independent module that is place on or in the drill string. The independent module may be placed between the top drive and the drill bit or at the top of the drill string near a top drive.
    Type: Application
    Filed: May 2, 2017
    Publication date: May 23, 2019
    Applicant: University of Houston System
    Inventors: Gangbing Song, Devendra Patil, Qingzhao Kong, Robello Samuel
  • Magnetorheological fluid device
    Patent number: 9939080
    Abstract: A system, including a flow control system, including a valve, a first cylinder including a piston coupled to the valve, wherein the piston moves axially within the first cylinder to transition the valve between open and closed positions, a magnetorheological (MR) fluid within the first cylinder configured to axially move the piston, and an MR fluid device configured to magnetize the MR fluid to control axial movement of the piston.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 10, 2018
    Assignee: University of Houston
    Inventors: John M. Alred, Amnah Kudia, Javier Villarreal, Hilario Torres, Gangbing Song, Devendra Patil
  • Actuation of shape memory alloy materials using ultracapacitors
    Patent number: 9787131
    Abstract: A system, in certain embodiments, includes a power supply. The power supply includes an ultracapacitor configured to be charged by a DC source. The power supply also includes a first switch that enables charging of the ultracapacitor by the DC source when in a closed position and disables charging of the ultracapacitor when in an open position. The power supply further includes a second switch configured to enable discharging of the ultracapacitor when in a closed position and to disable discharging of the ultracapacitor when in an open position. As the ultracapacitor is discharged, a current is supplied to actuate a shape memory alloy element.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 10, 2017
    Assignee: University of Houston
    Inventors: Garrett Lewis, Gangbing Song, Devendra Patil, Claudio Olmi
  • Shape memory alloy powered hydraulic accumulator having actuation plates
    Patent number: 9145903
    Abstract: A system, in certain embodiments, includes an accumulator having a first plate with a first plurality of holes and a second plate with a second plurality of holes. The second plate is positioned at an offset from the first plate, and the second plate is moveable relative to the first plate to adjust a fluid pressure. The accumulator also includes a plurality of shape memory alloy wires extending between the first and second plates, wherein the plurality of shape memory alloy wires extend through the first and second plurality of holes.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: September 29, 2015
    Assignee: Cameron International Corporation
    Inventors: Garrett Lewis, Gangbing Song, Devendra Patil
  • Viscoelastic damped jumpers
    Patent number: 8863784
    Abstract: A system, in certain embodiments, includes a multi-layer composite strip of pipe dampening materials, comprising a first layer of a first material, a second layer of a second material disposed adjacent to the first layer of material, and a third layer of a third material disposed adjacent to the second layer of material, wherein the second material comprises a viscoelastic material, and wherein the multi-layer composite strip of pipe dampening materials is configured to be affixed to an outer surface of a section of pipe. In certain embodiments, the first layer and the third layer may have stiffness values that are substantially different from each other. The difference in stiffness values may enable relative motion in the first layer and the third layer to be generated during vibration of the section of pipe, and the energy may be dissipated by the viscoelastic material, thereby dampening vibration of the section of pipe. In certain embodiments, multiple strips of pipe dampening materials may be used.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 21, 2014
    Assignee: Cameron International Corporation
    Inventors: Gangbing Song, Chris Kocurek, Devendra Patil, He Ma, Mithun Singla, Huigang Xiao
  • MAGNETORHEOLOGICAL FLUID DEVICE
    Publication number: 20140299801
    Abstract: A system, including a flow control system, including a valve, a first cylinder including a piston coupled to the valve, wherein the piston moves axially within the first cylinder to transition the valve between open and closed positions, a magnetorheological (MR) fluid within the first cylinder configured to axially move the piston, and an MR fluid device configured to magnetize the MR fluid to control axial movement of the piston.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 9, 2014
    Applicant: UNIVERSITY OF HOUSTON
    Inventors: John M. Alred, Amnah Kudia, Javier Villarreal, Hilario Torres, Gangbing Song, Devendra Patil
  • POUNDING TUNE MASS DAMPER SYSTEMS AND CONTROLS
    Publication number: 20140262656
    Abstract: A vibration dampener, including, a first beam comprising a first mounting end portion and a first peripheral end portion, wherein the first peripheral end portion comprises a tunable mass, and the first beam is configured to vibrate in tune with a vibrational frequency of a structure supporting the first beam at the first mounting end portion, a second beam comprising a second mounting end portion and a second peripheral end portion, wherein the second peripheral end portion comprises a ring disposed about the first beam, and a viscoelastic material disposed between the first beam and the ring, wherein the viscoelastic material is configured to dampen vibrational energy as the first beam vibrates toward the ring until the viscoelastic material becomes compressed between the first beam and the ring during the course of the impact.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: UNIVERSITY OF HOUSTON
    Inventors: Gangbing Song, Devendra Patil, John Vartos
  • Shape memory alloy powered hydraulic accumulator having wire guides
    Patent number: 8701406
    Abstract: A system, in certain embodiments, includes an accumulator having a first plate with a first wire guide and a second plate with a second wire guide. The second plate is positioned at an offset from the first plate, and the second plate is moveable relative to the first plate to adjust a fluid pressure. The accumulator also includes a plurality of shape memory alloy wires extending between the first and second plates, wherein the plurality of shape memory alloy wires extend along the first and second wire guides.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 22, 2014
    Assignee: University of Houston
    Inventors: Garrett Lewis, Gangbing Song, Devendra Patil
  • Shape memory alloy powered hydraulic accumulator having wire clamps
    Patent number: 8695334
    Abstract: A system, in certain embodiments, includes an accumulator having a first plate, a second plate positioned at an offset from the first plate, and a shape memory alloy wire extending between the first and second plates from a first wire portion to a second wire portion. The shape memory alloy wire is configured to move the first or second plate to adjust a fluid pressure in response to an electrical current through the shape memory alloy wire. The accumulator also includes a wire clamp assembly coupled to the first wire portion and/or the second wire portion of the shape memory alloy wire.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 15, 2014
    Assignee: University of Houston
    Inventors: Garrett Lewis, Gangbing Song, Devendra Patil