Patents by Inventor Alexander V. Mamishev
Alexander V. Mamishev 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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Publication number: 20240108923Abstract: The present disclosure provides a device for respiratory protection. The device includes a face shield having a first end and a second end opposite the first end. The device also includes a headband coupled to the first end of the face shield and the second end of the face shield. The device also includes an electrohydrodynamic (EHD) air filter system positioned along an entirety of a perimeter of the face shield.Type: ApplicationFiled: January 26, 2022Publication date: April 4, 2024Inventors: Alexander V. Mamishev, Abbie Sawyer, Anastasiya Makarevich, Richard Wang, Ravi Sankar Vaddi, Edward Martija, Sara Seulbee Shin
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Patent number: 10837931Abstract: Systems and methods are provided for remotely identifying and classifying materials based on their respective complex permittivity features. Materials of interest to be identified in later inspections are cataloged according to their respective complex permittivity features by applying electromagnetic fields to them and determining their complex permittivity features. That library of features is used to compare field measurements taken during an inspection to determine the presence of a material of interest and to identify it.Type: GrantFiled: May 16, 2016Date of Patent: November 17, 2020Assignee: The MITRE CorporationInventors: Nicholas C. Donnangelo, Alexander V. Mamishev, Walter S. Kuklinski
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Patent number: 9827573Abstract: An electrostatic precipitator may have different collecting and repelling electrodes surfaces. For example, a collecting electrode may have an internal conductive portion. A non-conductive or less conductive open cell foam covering may be applied to the conductive core of the collecting electrode. The foam may have cell sizes that vary within the volume of the foam or along the length of the foam. Accordingly the cell size of the foam near the leading, with respect to the direction of airflow, portion of the collector may be larger than the cell size of the foam nearer the trailing end of the collector and/or the cell size of the foam near the exterior of the collector may be larger than the cell size of the foam nearer to the interior of the collector.Type: GrantFiled: September 11, 2015Date of Patent: November 28, 2017Assignee: University of WashingtonInventors: Andrei Afanasiev, Alexander V. Mamishev
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Patent number: 9808808Abstract: An electrostatic precipitator is constructed with collecting and repelling electrodes. The collecting electrode is partially shielded from gas shear forces by a shielding structure. The shielding structure is mounted to reduce gas flow along a surface of the collector and includes passages for charged particles to travel to be captured by the collector.Type: GrantFiled: September 11, 2015Date of Patent: November 7, 2017Assignee: University of WashingtonInventors: Tsrong-Yi Wen, Alexander V. Mamishev
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Patent number: 9682384Abstract: An electrostatic precipitator may have a set of collector electrodes and a set of repelling electrodes. The conductive portions of the collector electrodes and/or the repelling may be arranged in segments. The segments may have differing electrical properties or may be electrically isolated to facilitate differing potentials along an airflow path. The differing potentials results in differing electric field strengths along the airflow path.Type: GrantFiled: September 11, 2015Date of Patent: June 20, 2017Assignee: University of WashingtonInventors: Andrei Afanasiev, Alexander V. Mamishev
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Publication number: 20160320438Abstract: Systems and methods are provided for remotely identifying and classifying materials based on their respective complex permittivity features. Materials of interest to be identified in later inspections are cataloged according to their respective complex permittivity features by applying electromagnetic fields to them and determining their complex permittivity features. That library of features is used to compare field measurements taken during an inspection to determine the presence of a material of interest and to identify it.Type: ApplicationFiled: May 16, 2016Publication date: November 3, 2016Applicant: THE MITRE CORPORATIONInventors: Nicholas C. Donnangelo, Alexander V. Mamishev, Walter S. Kuklinski
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Patent number: 9341687Abstract: Systems and methods are provided for remotely identifying and classifying materials based on their respective complex permittivity features. Materials of interest to be identified in later inspections are cataloged according to their respective complex permittivity features by applying electromagnetic fields to them and determining their complex permittivity features. That library of features is used to compare field measurements taken during an inspection to determine the presence of a material of interest and to identify it.Type: GrantFiled: February 22, 2012Date of Patent: May 17, 2016Assignee: The MITRE CorporationInventors: Nicholas C. Donnangelo, Alexander V. Mamishev, Walter S. Kuklinski
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Publication number: 20160074876Abstract: An electrostatic precipitator may have different collecting and repelling electrodes surfaces. For example, a collecting electrode may have an internal conductive portion. A non-conductive or less conductive open cell foam covering may be applied to the conductive core of the collecting electrode. The foam may have cell sizes that vary within the volume of the foam or along the length of the foam. Accordingly the cell size of the foam near the leading, with respect to the direction of airflow, portion of the collector may be larger than the cell size of the foam nearer the trailing end of the collector and/or the cell size of the foam near the exterior of the collector may be larger than the cell size of the foam nearer to the interior of the collector.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Inventors: Andrei Afanasiev, Alexander V. Mamishev
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Publication number: 20160074878Abstract: An electrostatic precipitator is constructed with collecting and repelling electrodes. The collecting electrode is partially shielded from gas shear forces by a shielding structure. The shielding structure is mounted to reduce gas flow along a surface of the collector and includes passages for charged particles to travel to be captured by the collector.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Inventors: Tsrong-Yi Wen, Alexander V. Mamishev
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Publication number: 20160074877Abstract: An electrostatic precipitator may have a set of collector electrodes and a set of repelling electrodes. The conductive portions of the collector electrodes and/or the repelling may be arranged in segments. The segments may have differing electrical properties or may be electrically isolated to facilitate differing potentials along an airflow path. The differing potentials results in differing electric field strengths along the airflow path.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Inventors: Andrei Afanasiev, Alexander V. Mamishev
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Publication number: 20120245873Abstract: Systems and methods are provided for remotely identifying and classifying materials based on their respective complex permittivity features. Materials of interest to be identified in later inspections are cataloged according to their respective complex permittivity features by applying electromagnetic fields to them and determining their complex permittivity features. That library of features is used to compare field measurements taken during an inspection to determine the presence of a material of interest and to identify it.Type: ApplicationFiled: February 22, 2012Publication date: September 27, 2012Applicant: The MITRE CorporationInventors: Nicholas C. DONNANGELO, Alexander V. MAMISHEV, Walter S. KUKLINSKI
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Publication number: 20090266516Abstract: Electrospray evaporative cooling (ESC). Means for effectuating thermal management using electrospray cooling are presented herein. An ESC may be implemented having one or more nozzles situated to spray droplets of a fluid towards a target. Because the fluid may be electrolytic, an electric field may be established between the one or more nozzles and the target can be operative to govern the direction, rate, etc. of the electrospraying between the one or more nozzles and the target. An additional shielding/field enhancement electrode may also be implemented between the one or more nozzles and the target. A droplet movement mechanism may be employed to transport droplets received at a first location of the target so that evaporation thereof may occur relatively more at a second location of the target. An ESC device may be implemented to effectuate thermal management of any of a variety of types of electronic devices.Type: ApplicationFiled: April 26, 2009Publication date: October 29, 2009Applicant: UNIVERSITY OF WASHINGTONInventors: Nels E. Jewell-Larsen, Chih-Peng Hsu, Alexander V. Mamishev, Igor A. Krichtafovitch, Hsiu-Che Wang
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Publication number: 20020075006Abstract: A method is disclosed for processing, optimization, calibration, and display of measured dielectrometry signals. A property estimator is coupled by way of instrumentation to an electrode structure and translates sensed electromagnetic responses into estimates of one or more preselected properties or dimensions of the material, such as dielectric permittivity and ohmic conductivity, layer thickness, or other physical properties that affect dielectric properties, or presence of other lossy dielectric or metallic objects. A dielectrometry sensor is disclosed which can be connected in various ways to have different effective penetration depths of electric fields but with all configurations having the same air-gap, fluid gap, or shim lift-off height, thereby greatly improving the performance of the property estimators by decreasing the number of unknowns.Type: ApplicationFiled: January 7, 2002Publication date: June 20, 2002Applicant: JENTEK Sensors, Inc.Inventors: Neil J. Goldfine, Markus Zahn, Alexander V. Mamishev, Darrell E. Schlicker, Andrew P. Washabaugh
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Patent number: 6380747Abstract: A method is disclosed for processing, optimization, calibration, and display of measured dielectrometry signals. A property estimator is coupled by way of instrumentation to an electrode structure and translates sensed electromagnetic responses into estimates of one or more preselected properties or dimensions of the material, such as dielectric permittivity and ohmic conductivity, layer thickness, or other physical properties that affect dielectric properties, or presence of other lossy dielectric or metallic objects. A dielectrometry sensor is disclosed which can be connected in various ways to have different effective penetration depths of electric fields but with all configurations having the same air-gap, fluid gap, or shim lift-off height, thereby greatly improving the performance of the property estimators by decreasing the number of unknowns.Type: GrantFiled: May 12, 1999Date of Patent: April 30, 2002Assignee: Jentek Sensors, Inc.Inventors: Neil J. Goldfine, Markus Zahn, Alexander V. Mamishev, Darrell E. Schlicker, Andrew P. Washabaugh