Patents by Inventor Sanguen Choi
Sanguen Choi 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: 11923096Abstract: An inspection system for inspecting a machine includes an inspection vehicle constructed for wireless operation while submersed in a dielectric liquid medium. The inspection vehicle is self-propelled. A controller is operative to direct the activities of the inspection vehicle. A plurality of status interrogation systems is disposed on the inspection vehicle. The status interrogation systems are operative to capture inspection data regarding a plurality of inspection procedures performed on the machine.Type: GrantFiled: June 7, 2019Date of Patent: March 5, 2024Assignee: Hitachi Energy LtdInventors: Gregory Cole, William Eakins, Daniel Lasko, Harshang Shah, Thomas Fuhlbrigge, Carlos W. Morato, Biao Zhang, Luiz Cheim, Poorvi Patel, Stefan Rakuff, Saumya Sharma, Nolan W. Nicholas, Gregory F. Rossano, Sanguen Choi
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Patent number: 11360120Abstract: A method and system for acquiring, manipulating and displaying inspection data obtained by sensors associated with submersible inspection vehicle within a housing having a liquid medium is disclosed in the present application. A control system including an electronic controller is operably coupled with the inspection vehicle and is configured to display data transmitted from the sensor and overlay input data from an operator on the display to facilitate real time analysis during the inspection event.Type: GrantFiled: June 7, 2019Date of Patent: June 14, 2022Assignee: HITACHI ENERGY SWITZERLAND AGInventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Luiz V. Cheim, Poorvi Patel, Biao Zhang, Saumya Sharma, Sanguen Choi
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Patent number: 11087895Abstract: A launching tube for use with a liquid filled tank can be sized to accommodate a submersible vehicle for dispensing into the liquid tank. The tank can be an electrical transformer or any other liquid containing tank such as but not limited to a chemical tank. The launching tube can include a valve for insertion into a launching chamber, and a tank side valve for launching of the submersible into the tank. In one form the launching tube includes an antenna for communication with the submersible and/or a base station. The launching tube can also include a sensor such as a camera, as well as an agitator. The agitator can be used to facilitate bubble removal from the inside of the launching tube.Type: GrantFiled: June 7, 2019Date of Patent: August 10, 2021Assignee: ABB Power Grids Switzerland AGInventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Biao Zhang, Luiz Cheim, Poorvi Patel, Gregory F. Rossano, Andrew Salm, Sanguen Choi
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Publication number: 20200218285Abstract: A tether control system for an inspection vehicle operable in a housing having a liquid medium is disclosed in the present application. The tether system includes a tether connected between the inspection vehicle and an electronic controller. A controllable buoyancy system associated with the tether is operable for moving the tether in a desired location. The controllable buoyancy system includes one or more floating bodies having a propulsion system and one or more buoyant elements having variable buoyancy capabilities.Type: ApplicationFiled: June 7, 2019Publication date: July 9, 2020Inventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Luiz V. Cheim, Poorvi Patel, Biao Zhang, Saumya Sharma, Andrew Salm, Sanguen Choi
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Patent number: 10583905Abstract: A submersible inspection drone used for inspection can include a ballast system used to control depth of the submersible inspection drone. The submersible can be configured to communicate to a base station using a wireless transmitter and receiver. The ballast system can include a pressure vessel for storing fluid and a bag for inflating and deflating as it receives a fluid. Buoyancy of the submersible inspection drone can be provided by change in density of the pressure vessel as a compressible gas is expanded when the ballast bag is caused to inflate or deflate. A pump can be used to draw fluid from the ballast bag and store the fluid in the pressure vessel. In one form the pressure vessel can include a compressible fluid and an incompressible fluid, where the incompressible fluid is used to inflate and deflate the bag.Type: GrantFiled: December 7, 2017Date of Patent: March 10, 2020Assignee: ABB Power Grids Switzerland AGInventors: Gregory Cole, William Eakins, Daniel Lasko, Harshang Shah, Thomas Fuhlbrigge, Biao Zhang, Sanguen Choi, Luiz Cheim, Poorvi Patel, Andrew Salm
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Publication number: 20190391183Abstract: A method and system for acquiring, manipulating and displaying inspection data obtained by sensors associated with submersible inspection vehicle within a housing having a liquid medium is disclosed in the present application. A control system including an electronic controller is operably coupled with the inspection vehicle and is configured to display data transmitted from the sensor and overlay input data from an operator on the display to facilitate real time analysis during the inspection event.Type: ApplicationFiled: June 7, 2019Publication date: December 26, 2019Inventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Luiz V. Cheim, Poorvi Patel, Biao Zhang, Saumya Sharma, Sanguen Choi
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Publication number: 20190325668Abstract: A submersible inspection system for inspection of liquid cooled electrical transformers having a wirelessly controlled submersible inspective device. A submersion depth of the submersible can be controlled using a ballast system. The system can also include an input/output selector to switch between camera images from the submersible. A heartbeat signal indicative of a health of the transmitted signal can be transmitted to the submersible, and redundant channel selection logic can facilitate switching to a channel that includes a current heartbeat. A plurality of status interrogation systems disposed on the submersible can capture data regarding inspection procedures performed on the transformer, and the submersible can include tools for repair procedures. Data transmitted from the submersible, and overlayed with input data from an operator, can facilitate real time inspection analysis. The system can also form a model of an internal in the transformer, as well as produce a three-dimensional field of view.Type: ApplicationFiled: June 7, 2019Publication date: October 24, 2019Inventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Carlos Morato, Luiz V. Cheim, Poorvi Patel, Biao Zhang, Sanguen Choi, Gregory F. Rossano, Andrew M. Salm, Saumya Sharma, Stefan Rakuff, Nolan W. Nicholas
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Publication number: 20190323191Abstract: A deployment system for an inspection vehicle operable in a housing having a liquid medium is disclosed in the present application. The deployment system includes a mount connectable to the housing through an aperture formed in a wall thereof. An extendable arm is connected to the mount and positioned within the housing. A tether is slidably coupled to the extendable arm and adapted to connect with the inspection vehicle. A control mechanism is operable to control deployment of the tether and the position of the extendable arm.Type: ApplicationFiled: June 7, 2019Publication date: October 24, 2019Inventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Luiz V. Cheim, Poorvi Patel, Biao Zhang, Gregory F. Rossano, Saumya Sharma, Sanguen Choi
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Publication number: 20190287688Abstract: A launching tube for use with a liquid filled tank can be sized to accommodate a submersible vehicle for dispensing into the liquid tank. The tank can be an electrical transformer or any other liquid containing tank such as but not limited to a chemical tank. The launching tube can include a valve for insertion into a launching chamber, and a tank side valve for launching of the submersible into the tank. In one form the launching tube includes an antenna for communication with the submersible and/or a base station. The launching tube can also include a sensor such as a camera, as well as an agitator. The agitator can be used to facilitate bubble removal from the inside of the launching tube.Type: ApplicationFiled: June 7, 2019Publication date: September 19, 2019Inventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Biao Zhang, Luiz V. Cheim, Poorvi Patel, Gregory F. Rossano, Andrew Salm, Sanguen Choi
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Publication number: 20190287689Abstract: An inspection system for inspecting a machine includes an inspection vehicle constructed for wireless operation while submersed in a dielectric liquid medium. The inspection vehicle is self-propelled. A controller is operative to direct the activities of the inspection vehicle. A plurality of status interrogation systems is disposed on the inspection vehicle. The status interrogation systems are operative to capture inspection data regarding a plurality of inspection procedures performed on the machine.Type: ApplicationFiled: June 7, 2019Publication date: September 19, 2019Inventors: Gregory A. Cole, William J. Eakins, Daniel T. Lasko, Harshang Shah, Thomas A. Fuhlbrigge, Carlos Morato, Biao Zhang, Luiz V. Cheim, Poorvi Patel, Stefan Rakuff, Saumya Sharma, Nolan W. Nicholas, Gregory F. Rossano, Sanguen Choi
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Publication number: 20180154995Abstract: A submersible inspection drone used for inspection can include a ballast system used to control depth of the submersible inspection drone. The submersible can be configured to communicate to a base station using a wireless transmitter and receiver. The ballast system can include a pressure vessel for storing fluid and a bag for inflating and deflating as it receives a fluid. Buoyancy of the submersible inspection drone can be provided by change in density of the pressure vessel as a compressible gas is expanded when the ballast bag is caused to inflate or deflate. A pump can be used to draw fluid from the ballast bag and store the fluid in the pressure vessel. In one form the pressure vessel can include a compressible fluid and an incompressible fluid, where the incompressible fluid is used to inflate and deflate the bag.Type: ApplicationFiled: December 7, 2017Publication date: June 7, 2018Inventors: Gregory Cole, William Eakins, Daniel Lasko, Harshang Shah, Thomas Fuhlbrigge, Biao Zhang, Sanguen Choi, Luiz Cheim, Poorvi Patel, Andrew Salm