Patents by Inventor Anirban Mazumdar
Anirban Mazumdar 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: 11753922Abstract: A system or method for drilling includes autonomously controlling a rotary or percussive drilling process as it transitions through multiple materials with very different dynamics. The method determines a drilling medium based on real-time measurements and comparison to prior drilling data, and identifies the material type, drilling region, and approximately optimal setpoint based on data from at least one operating condition. The controller uses these setpoints initially to execute an optimal search to maximize performance by minimizing mechanical specific energy. Near-bit depth-of-cut estimations are performed using a machine learning prediction deployed in an embedded processor to provide high-speed ROP estimates. The sensing capability is coupled with a near-bit clutching mechanism to support drilling dysfunction mitigation.Type: GrantFiled: March 18, 2022Date of Patent: September 12, 2023Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Stephen Buerger, Anirban Mazumdar, Steven James Spencer, Timothy James Blada, Jiann-Cherng Su, Elton K. Wright, Adam Foris, David W. Raymond
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Patent number: 11566497Abstract: A modular anti-rotation device for preventing rotation with respect to the central axis of a drilling tool in a borehole and for producing a notch in a borehole surface. The anti-rotation device includes an upper fixture portion and a lower fixture portion in axial alignment. The upper fixture portion and the lower fixture portion are connected by yoke assemblies. Each yoke assembly is connected to the fixture portion and fixture portion at one end, and forming an articulated joint of the upper yoke assembly and the lower yoke assembly at a distal end opposite the first end. A roller is connected at each joint, connecting the upper and lower yoke assemblies. The rollers engage vertically with a borehole surface, the rollers travelling axially, as a drill shaft penetrates into the borehole, the rollers simultaneously preventing radial movement of the anti-rotation device and prevent rotation with respect to the central axis of the borehole.Type: GrantFiled: August 26, 2021Date of Patent: January 31, 2023Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Jiann-Cherng Su, Stephen Buerger, Anirban Mazumdar, Adam Foris
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Patent number: 11376765Abstract: A method and system for sensing and controlling temperature with magnetic fields are provided. The method comprises placing a compound in thermal communication with a number of temperature or heat sources and placing a number of magnets in thermal communication with the compound. A number of magnetic sensors are placed in electromagnetic communication with the number of magnets. Changes in the magnetic field of the magnets are detected by the sensors and used to determine the temperature of the compound according to a model that maps magnetic field characteristics to temperature. The amount of cure of the compound can then be estimated from the temperature. The temperature or heat sources are controlled in response to the temperature measurement and the estimated amount of cure of the compound.Type: GrantFiled: August 6, 2019Date of Patent: July 5, 2022Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Yi Chen Mazumdar, Martin Nemer, Anirban Mazumdar
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Patent number: 11280173Abstract: A system or method for drilling includes autonomously controlling a rotary or percussive drilling process as it transitions through multiple materials with very different dynamics. The method determines a drilling medium based on real-time measurements and comparison to prior drilling data, and identifies the material type, drilling region, and approximately optimal setpoint based on data from at least one operating condition. The controller uses these setpoints initially to execute an optimal search to maximize performance by minimizing mechanical specific energy. Near-bit depth-of-cut estimations are performed using a machine learning prediction deployed in an embedded processor to provide high-speed ROP estimates. The sensing capability is coupled with a near-bit clutching mechanism to support drilling dysfunction mitigation.Type: GrantFiled: January 25, 2021Date of Patent: March 22, 2022Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Stephen Buerger, Anirban Mazumdar, Steven James Spencer, Timothy James Blada, Jiann-Cherng Su, Elton K. Wright, Adam Foris, David W. Raymond
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Publication number: 20210388697Abstract: A modular anti-rotation device for preventing rotation with respect to the central axis of a drilling tool in a borehole and for producing a notch in a borehole surface. The anti-rotation device includes an upper fixture portion and a lower fixture portion in axial alignment. The upper fixture portion and the lower fixture portion are connected by yoke assemblies. Each yoke assembly is connected to the fixture portion and fixture portion at one end, and forming an articulated joint of the upper yoke assembly and the lower yoke assembly at a distal end opposite the first end. A roller is connected at each joint, connecting the upper and lower yoke assemblies. The rollers engage vertically with a borehole surface, the rollers travelling axially, as a drill shaft penetrates into the borehole, the rollers simultaneously preventing radial movement of the anti-rotation device and prevent rotation with respect to the central axis of the borehole.Type: ApplicationFiled: August 26, 2021Publication date: December 16, 2021Inventors: Jiann-Cherng Su, Stephen Buerger, Anirban Mazumdar, Adam Foris
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Patent number: 11131167Abstract: Drilling tools are frequently subject to rotation with respect to the central drilling axis caused by torque. A mechanical linkage can be configured to apply force that is proportional to the weight-on-bit on the borehole surface while transmitting axial loads used to generate weight-on-bit. The device can be used to manage drill string twist that could lead to drilling dysfunctions.Type: GrantFiled: November 10, 2017Date of Patent: September 28, 2021Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Jiann-Cherng Su, Stephen Buerger, Anirban Mazumdar, Adam Foris
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Patent number: 10969269Abstract: A method of sensing vibrations or displacements remotely is provided. Magnets are attached to vibrating objects or the vibrating objects themselves are magnetic. A number of magnetic sensors are placed a specified distance from the magnets. Vibrational displacement of the vibrating objects is determined according to a model that maps changes in magnetic field to vibrations or spatial displacements.Type: GrantFiled: October 24, 2018Date of Patent: April 6, 2021Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Yi Chen Mazumdar, Martin Nemer, Anirban Mazumdar, Bart G. van Bloemen Waanders, Carlton F. Brooks, Oksana Guba, Stephen D. Bond
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Patent number: 10900343Abstract: A system or method for drilling includes autonomously controlling a rotary or percussive drilling process as it transitions through multiple materials with very different dynamics. The method determines a drilling medium based on real-time measurements and comparison to prior drilling data, and identifies the material type, drilling region, and approximately optimal setpoint based on data from at least one operating condition. The controller uses these setpoints initially to execute an optimal search to maximize performance by minimizing mechanical specific energy.Type: GrantFiled: January 25, 2018Date of Patent: January 26, 2021Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Stephen Buerger, Anirban Mazumdar, Steven James Spencer, Timothy James Blada, Jiann-Cherng Su, Elton K. Wright, Adam Foris, David W. Raymond
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Patent number: 10421192Abstract: An inspection robot for inspecting a nuclear reactor that includes a hull and an on-board control mechanism that controls the operation of the inspection robot. The on-board control mechanism controls one or more sensors used to inspect one or more structures in the nuclear reactor as well as the movement by the inspection robot. A gimbal mechanism rotates the inspection robot hull by shifting the center-of-mass so that gravity and buoyancy forces generate a moment to rotate the hull in a desired direction. A camera is coupled to the gimbal mechanism for providing visual display of the one or more structures in the nuclear reactor. The camera is allowed to rotate about an axis using the gimbal mechanism. The inspection robot communicates its findings with respect to the inspection tasks using the wireless communication link.Type: GrantFiled: November 2, 2011Date of Patent: September 24, 2019Assignees: Massachusetts Institute of Technology, Mitsubishi Heavy Industries, LTD.Inventors: Haruhiko Harry Asada, Anirban Mazumdar, Ian C. Rust, Jun Fujita
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Patent number: 10144464Abstract: A locomotion subassembly for a biped robot is disclosed. The locomotion subassembly includes several unique energy transfer mechanisms and arrangements for efficiently powering the motion of the robot.Type: GrantFiled: July 8, 2015Date of Patent: December 4, 2018Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Stephen Buerger, Clinton G. Hobart, Curt M. Salisbury, Steven J. Spencer, Anirban Mazumdar, Michael Kuehl, Kevin J. Dullea
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Patent number: 9205904Abstract: A propulsion system is provided that includes one or more pumps that form a jet for propulsion. A number of Coanda jet devices (CJDs) are coupled to the one or more pumps. The CJDs are arranged so to allow for a multi-axis underwater control of an underwater robot.Type: GrantFiled: February 6, 2012Date of Patent: December 8, 2015Assignee: Massachusetts Institute of TechnologyInventors: Haruhiko Harry Asada, Anirban Mazumdar
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Publication number: 20140107839Abstract: An underwater robot includes a body, a propeller connected to an end of the body, a controller, and first and second actuation units that output jets of fluid. The propeller propels the robot, and the controller stabilizes the robot using the jets of fluid. The controller determines which actuation unit to activate based on a calculation involving a yaw rate and a yaw angle of the robot.Type: ApplicationFiled: October 11, 2013Publication date: April 17, 2014Applicant: Massachusetts Institute of TechnologyInventors: Haruhiko Harry Asada, Anirban Mazumdar, Martin Lozano, Aaron Michael Fittery
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Publication number: 20120282826Abstract: A propulsion system is provided that includes one or more pumps that form a jet for propulsion. A number of Coanda jet devices (CJDs) are coupled to the one or more pumps. The CJDs are arranged so to allow for a multi-axis underwater control of an underwater robot.Type: ApplicationFiled: February 6, 2012Publication date: November 8, 2012Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Haruhiko Harry Asada, Anirban Mazumdar
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Publication number: 20120257704Abstract: An inspection robot for inspecting a nuclear reactor that includes a hull and an on-board control mechanism that controls the operation of the inspection robot. The on-board control mechanism controls one or more sensors used to inspect one or more structures in the nuclear reactor as well as the movement by the inspection robot. A gimbal mechanism rotates the inspection robot hull by shifting the center-of-mass so that gravity and buoyancy forces generate a moment to rotate the hull in a desired direction. A camera is coupled to the gimbal mechanism for providing visual display of the one or more structures in the nuclear reactor. The camera is allowed to rotate about an axis using the gimbal mechanism. The inspection robot communicates its findings with respect to the inspection tasks using the wireless communication link.Type: ApplicationFiled: November 2, 2011Publication date: October 11, 2012Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Haruhiko Harry Asada, Anirban Mazumdar, Ian C. Rust, Jun Fujita