Patents by Inventor George K. Frimpong
George K. Frimpong 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: 11914057Abstract: A system for detecting an object approaching and/or impacting electrical equipment is disclosed. The system includes a housing for the electrical equipment and acoustic sensor(s) for measuring a sound pressure of the object approaching the housing, the acoustic sensor(s) disposed at a location at which the acoustic sensor(s) is not in contact with the housing. The system further includes vibration sensor(s) for measuring an acceleration of a surface of the housing caused by the object striking the housing, the vibration sensor(s) disposed at a location at which the vibration sensor(s) is in contact with the housing, and a computer readable storage medium having thereon machine-readable instructions that when executed determine the approach of the object for impact on the housing and/or the impact of the object to the housing.Type: GrantFiled: December 10, 2019Date of Patent: February 27, 2024Assignee: HITACHI ENERGY LTDInventors: George K. Frimpong, Alberto Prieto Colmenero, Claire Pitois
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Patent number: 11742128Abstract: A transformer having a transformer core that forms a magnetic flux path between and through a top yoke, leg, and bottom yoke of the transformer core. A winding can be disposed about the leg. Further, a flitch plate, which can have at least one slot that is configured to reduce eddy losses generated by the winding, can be disposed adjacent to the leg and extend between the top yoke and the bottom yoke. The flitch plate can be clamped to the top and bottom yokes by top and bottom clamps, respectively. The top and bottom clamps can each include at least one cutout that reduces an attraction of stray flux from the winding and into the corresponding top and bottom clamps. Additionally, at least one of the top clamp and the bottom clamp can include an internal lattice structure.Type: GrantFiled: September 26, 2019Date of Patent: August 29, 2023Assignee: HITACHI ENERGY SWITZERLAND AGInventors: Ion C. Radu, George K. Frimpong
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Publication number: 20210098172Abstract: A transformer having a transformer core that forms a magnetic flux path between and through a top yoke, leg, and bottom yoke of the transformer core. A winding can be disposed about the leg. Further, a flitch plate, which can have at least one slot that is configured to reduce eddy losses generated by the winding, can be disposed adjacent to the leg and extend between the top yoke and the bottom yoke. The flitch plate can be clamped to the top and bottom yokes by top and bottom clamps, respectively. The top and bottom clamps can each include at least one cutout that reduces an attraction of stray flux from the winding and into the corresponding top and bottom clamps. Additionally, at least one of the top clamp and the bottom clamp can include an internal lattice structure.Type: ApplicationFiled: September 26, 2019Publication date: April 1, 2021Inventors: Ion C. Radu, George K. Frimpong
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Patent number: 10832859Abstract: A hardened inductive device and systems and methods for protecting the inductive device from impact is provided. The inductive device is hardened with protective coating and/or an armor steel housing. The hardened inductive device is protected from impact by an object such as a bullet and leakage of dielectric fluid is prevented. Acoustic and vibration sensors are provided to detect the presence and impact, respectively, of an object in relation to the inductive device housing. The measurements of the acoustic and vibration sensors are compared to thresholds for sending alarms to the network control center and initiating shut-down and other sequences to protect the active part. The acoustic sensor results are utilized to determine the location of origin of the projectile.Type: GrantFiled: August 19, 2019Date of Patent: November 10, 2020Assignee: ABB Schweiz AGInventors: George K. Frimpong, Alberto Prieto, Mirrasoul J. Mousavi, James Stoupis, Ed G teNyenhuis, Jeremy R. Schueler, Andrew Bleich, Elizabeth D. Sullivan, Claude J. Lambert, Petter A. Fiskerud, Andrew J. Wall, Gary C. McLeish, Thomas McDonald, Ronald A. Kupiec
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Patent number: 10679787Abstract: A hardened inductive device and systems and methods for protecting the inductive device from impact is provided. The inductive device is hardened with protective coating and/or an armor steel housing. The hardened inductive device is protected from impact by an object such as a bullet and leakage of dielectric fluid is prevented. Acoustic and vibration sensors are provided to detect the presence and impact, respectively, of an object in relation to the inductive device housing. The measurements of the acoustic and vibration sensors are compared to thresholds for sending alarms to the network control center and initiating shut-down and other sequences to protect the active part. The acoustic sensor results are utilized to determine the location of origin of the projectile.Type: GrantFiled: August 19, 2019Date of Patent: June 9, 2020Assignee: ABB Schweiz AGInventors: George K. Frimpong, Alberto Prieto, Mirrasoul J. Mousavi, James Stoupis, Ed G teNyenhuis, Jeremy R. Schueler, Andrew Bleich, Elizabeth D. Sullivan, Claude J. Lambert, Petter A. Fiskerud, Andrew J. Wall, Gary C. McLeish, Thomas McDonald, Ronald A. Kupiec
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Publication number: 20200114393Abstract: A material coating system for an apparatus having a housing configured to contain a fluid is disclosed herein. A multi-layer coating is applied to the housing to mitigate damage caused by external factors. The multi-layer coating includes: a layer of a primer coating having anti-corrosive properties, a layer of a mid coating having mechanical and chemical properties capable of at least partially closing a hole in the housing to avoid fluid leakage and optionally a layer of a top coating having properties that resist ultraviolet radiation from passing therethrough.Type: ApplicationFiled: December 10, 2019Publication date: April 16, 2020Inventors: George K. Frimpong, Alberto Prieto Colmenero, Claire Pitois
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Publication number: 20200058439Abstract: A hardened inductive device and systems and methods for protecting the inductive device from impact is provided. The inductive device is hardened with protective coating and/or an armor steel housing. The hardened inductive device is protected from impact by an object such as a bullet and leakage of dielectric fluid is prevented. Acoustic and vibration sensors are provided to detect the presence and impact, respectively, of an object in relation to the inductive device housing. The measurements of the acoustic and vibration sensors are compared to thresholds for sending alarms to the network control center and initiating shut-down and other sequences to protect the active part. The acoustic sensor results are utilized to determine the location of origin of the projectile.Type: ApplicationFiled: August 19, 2019Publication date: February 20, 2020Inventors: George K. Frimpong, Alberto Prieto, Mirrasoul J. Mousavi, James Stoupis, Ed G teNyenhuis, Jeremy R. Schueler, Andrew Bleich, Elizabeth D. Sullivan, Claude J. Lambert, Petter A. Fiskerud, Andrew J. Wall, Gary C. McLeish, Thomas McDonald, Ronald A. Kupiec
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Patent number: 10543511Abstract: A material coating system for an apparatus having a housing configured to contain a fluid is disclosed herein. A multi-layer coating is applied to the housing to mitigate damage caused by external factors. The multi-layer coating includes: a layer of a primer coating having anti-corrosive properties, a layer of a mid coating having mechanical and chemical properties capable of at least partially closing a hole in the housing to avoid fluid leakage and optionally a layer of a top coating having properties that resist ultraviolet radiation from passing therethrough.Type: GrantFiled: March 10, 2017Date of Patent: January 28, 2020Assignee: ABB Power Grids Switzerland AGInventors: George K Frimpong, Alberto Prieto Colmenero, Claire Pitois
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Publication number: 20190378649Abstract: A hardened inductive device and systems and methods for protecting the inductive device from impact is provided. The inductive device is hardened with protective coating and/or an armor steel housing. The hardened inductive device is protected from impact by an object such as a bullet and leakage of dielectric fluid is prevented. Acoustic and vibration sensors are provided to detect the presence and impact, respectively, of an object in relation to the inductive device housing. The measurements of the acoustic and vibration sensors are compared to thresholds for sending alarms to the network control center and initiating shut-down and other sequences to protect the active part. The acoustic sensor results are utilized to determine the location of origin of the projectile.Type: ApplicationFiled: August 19, 2019Publication date: December 12, 2019Inventors: George K. Frimpong, Alberto Prieto, Mirrasoul J. Mousavi, James Stoupis, Ed G. teNyenhuis, Jeremy R. Schueler, Andrew Bleich, Elizabeth D. Sullivan, Claude J. Lambert, Petter A. Fiskerud, Andrew J. Wall, Gary C. McLeish, Thomas McDonald, Ronald A. Kupiec
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Patent number: 10431375Abstract: A hardened inductive device and systems and methods for protecting the inductive device from impact is provided. The inductive device is hardened with protective coating and/or an armor steel housing. The hardened inductive device is protected from impact by an object such as a bullet and leakage of dielectric fluid is prevented. Acoustic and vibration sensors are provided to detect the presence and impact, respectively, of an object in relation to the inductive device housing. The measurements of the acoustic and vibration sensors are compared to thresholds for sending alarms to the network control center and initiating shut-down and other sequences to protect the active part. The acoustic sensor results are utilized to determine the location of origin of the projectile.Type: GrantFiled: October 22, 2015Date of Patent: October 1, 2019Assignee: ABB Schweiz AGInventors: George K. Frimpong, Alberto Prieto, Mirrasoul J. Mousavi, James Stoupis, Ed G teNyenhuis, Jeremy R. Schueler, Andrew Bleich, Elizabeth D. Sullivan, Claude J. Lambert, Petter A. Fiskerud, Andrew J. Wall, Gary C. McLeish, Thomas McDonald, Ronald A. Kupiec
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Publication number: 20170274419Abstract: A material coating system for an apparatus having a housing configured to contain a fluid is disclosed herein. A multi-layer coating is applied to the housing to mitigate damage caused by external factors. The multi-layer coating includes: a layer of a primer coating having anti-corrosive properties, a layer of a mid coating having mechanical and chemical properties capable of at least partially closing a hole in the housing to avoid fluid leakage and optionally a layer of a top coating having properties that resist ultraviolet radiation from passing therethrough.Type: ApplicationFiled: March 10, 2017Publication date: September 28, 2017Inventors: George K. Frimpong, Alberto Prieto Colmenero, Claire Pitois
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Publication number: 20160118186Abstract: A hardened inductive device and systems and methods for protecting the inductive device from impact is provided. The inductive device is hardened with protective coating and/or an armor steel housing. The hardened inductive device is protected from impact by an object such as a bullet and leakage of dielectric fluid is prevented. Acoustic and vibration sensors are provided to detect the presence and impact, respectively, of an object in relation to the inductive device housing. The measurements of the acoustic and vibration sensors are compared to thresholds for sending alarms to the network control center and initiating shut-down and other sequences to protect the active part. The acoustic sensor results are utilized to determine the location of origin of the projectile.Type: ApplicationFiled: October 22, 2015Publication date: April 28, 2016Applicant: ABB Technology AGInventors: George K. Frimpong, Alberto Prieto, Mirrasoul J. Mousavi, James Stoupis, Ed G. teNyenhuis, Jeremy R. Schueler, Andrew Bleich, Elizabeth D. Sullivan, Claude J. Lambert, Petter A. Fiskerud, Andrew J. Wall, Gary C. McLeish, Thomas McDonald, Ronald A. Kupiec
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Materials characterization cell for polarization spectrum and streaming electrification measurements
Patent number: 5804974Abstract: A materials characterization test cell is disclosed. The test cell includes a housing including spacers for supporting sample insulation materials, and a channel disposed in the housing to permit the passage of oil through the housing. A pair of electrodes is provided to provide a mechanism for making polarization spectrum and/or streaming electrification measurements.Type: GrantFiled: May 21, 1997Date of Patent: September 8, 1998Assignee: Abb Power T&D Company Inc.Inventors: Michael A. Brubaker, George K. Frimpong -
Materials characterization cell for polarization spectrum and streaming electrification measurements
Patent number: 5747992Abstract: A materials characterization test cell is disclosed. The test cell includes a housing including spacers for supporting sample insulation materials, and a channel disposed in the housing to permit the passage of oil through the housing. A pair of electrodes is provided to provide a mechanism for making polarization spectrum and/or streaming electrification measurements.Type: GrantFiled: June 7, 1995Date of Patent: May 5, 1998Assignee: ABB Power T&D Company Inc.Inventors: Michael A. Brubaker, George K. Frimpong