Patents by Inventor Jack Kotovsky
Jack Kotovsky 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: 11962129Abstract: The present disclosure relates to a laser diode system. The system may have at least one laser diode emitter having a substrate, at least one laser diode supported on the substrate, and a facet which a laser beam generated by the laser diode is emitted. A cooling subsystem is included which is disposed in contact with the substrate of the laser diode emitter. The cooling subsystem includes a plurality of cooling fins forming a plurality of elongated channels for circulating a cooling fluid therethrough to cool the laser diode emitter. The cooling fluid also flows over the facet of the laser diode emitter.Type: GrantFiled: April 9, 2021Date of Patent: April 16, 2024Assignees: Lawrence Livermore National Security, LLC, Colorado State University Research FoundationInventors: Jack Kotovsky, Salmaan H. Baxamusa, Clint D. Frye, Ian Seth Ladner, Thomas M. Spinka, Devin Joseph Funaro, David Ryan Hobby, Caleb Del Anderson, Todd Bandhauer
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Patent number: 11725996Abstract: Measurement of pressure of a fluid in a vessel using a cantilever spring in the vessel; a magnet connected to the cantilever spring in the vessel; an electromagnet outside of the vessel operatively connected to the magnet and the cantilever spring in the vessel, wherein the electromagnet induces movement of the magnet and the cantilever spring in the vessel, and wherein the movement is related to the pressure of the fluid in the vessel; a receiving coil operatively positioned relative to the magnet, wherein movement of the cantilever spring and the magnet in the vessel creates an electromotive response in the coil; and a controller analyzer connected to the receiving coil, wherein the controller analyzer uses the electromotive response in the coil for measuring the pressure of the fluid in the vessel.Type: GrantFiled: September 28, 2021Date of Patent: August 15, 2023Assignee: Lawrence Livermore National Security, LLCInventors: Jack Kotovsky, Taylor Bevis
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Publication number: 20220329048Abstract: The present disclosure relates to a laser diode system. The system may have at least one laser diode emitter having a substrate, at least one laser diode supported on the substrate, and a facet which a laser beam generated by the laser diode is emitted. A cooling subsystem is included which is disposed in contact with the substrate of the laser diode emitter. The cooling subsystem includes a plurality of cooling fins forming a plurality of elongated channels for circulating a cooling fluid therethrough to cool the laser diode emitter. The cooling fluid also flows over the facet of the laser diode emitter.Type: ApplicationFiled: April 9, 2021Publication date: October 13, 2022Inventors: Jack KOTOVSKY, Salmaan H. BAXAMUSA, Clint D. FRYE, Ian Seth LADNER, Thomas M. SPINKA, Devin Joseph FUNARO, David Ryan HOBBY, Caleb Del ANDERSON, Todd BANDHAUER
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Publication number: 20220011188Abstract: Measurement of pressure of a fluid in a vessel using a cantilever spring in the vessel; a magnet connected to the cantilever spring in the vessel; an electromagnet outside of the vessel operatively connected to the magnet and the cantilever spring in the vessel, wherein the electromagnet induces movement of the magnet and the cantilever spring in the vessel, and wherein the movement is related to the pressure of the fluid in the vessel; a receiving coil operatively positioned relative to the magnet, wherein movement of the cantilever spring and the magnet in the vessel creates an electromotive response in the coil; and a controller analyzer connected to the receiving coil, wherein the controller analyzer uses the electromotive response in the coil for measuring the pressure of the fluid in the vessel.Type: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Inventors: Jack Kotovsky, Taylor Bevis
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Patent number: 11162861Abstract: Measurement of pressure of a fluid in a vessel using a cantilever spring in the vessel; a magnet connected to the cantilever spring in the vessel; an electromagnet outside of the vessel operatively connected to the magnet and the cantilever spring in the vessel, wherein the electromagnet induces movement of the magnet and the cantilever spring in the vessel, and wherein the movement is related to the pressure of the fluid in the vessel; a receiving coil operatively positioned relative to the magnet, wherein movement of the cantilever spring and the magnet in the vessel creates an electromotive response in the coil; and a controller analyzer connected to the receiving coil, wherein the controller analyzer uses the electromotive response in the coil for measuring the pressure of the fluid in the vessel.Type: GrantFiled: April 24, 2019Date of Patent: November 2, 2021Assignee: Lawrence Livermore National Security, LLCInventors: Jack Kotovsky, Taylor Bevis
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Publication number: 20210234214Abstract: The present disclosure relates to an energy module having a plurality of energy generating cells, and at least one cooling plate having opposing surfaces. The cooling plate is disposed between an adjacent pair of the energy generating cells such that the opposing surfaces of the cooling plate are in contact with surfaces of the adjacent pair of energy generating cells. The cooling plate has at least one coolant flow channel configured to receive a coolant flow therethrough to limit propagation of heat from one to the other of either one of the adjacent pair of energy generating cells when either one of the adjacent pair of energy generating cells fails.Type: ApplicationFiled: May 2, 2019Publication date: July 29, 2021Applicants: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, EAGLEPICHER TECHNOLOGIES, LLCInventors: Frank PUGLIA, Ralph ROARK, Gregory J. MOORE, Arthur DOBLEY, Thomas J. MCCARVILLE, John CHANG, Jacquelyn N. ETTER, Jack KOTOVSKY, Rudy ROBLES, Eric M. ZIEBARTH
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Publication number: 20200340877Abstract: Measurement of pressure of a fluid in a vessel using a cantilever spring in the vessel; a magnet connected to the cantilever spring in the vessel; an electromagnet outside of the vessel operatively connected to the magnet and the cantilever spring in the vessel, wherein the electromagnet induces movement of the magnet and the cantilever spring in the vessel, and wherein the movement is related to the pressure of the fluid in the vessel; a receiving coil operatively positioned relative to the magnet, wherein movement of the cantilever spring and the magnet in the vessel creates an electromotive response in the coil; and a controller analyzer connected to the receiving coil, wherein the controller analyzer uses the electromotive response in the coil for measuring the pressure of the fluid in the vessel.Type: ApplicationFiled: April 24, 2019Publication date: October 29, 2020Inventors: Jack Kotovsky, Taylor Bevis
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Patent number: 9768584Abstract: A laser diode package includes a heat pipe having a fluid chamber enclosed in part by a heat exchange wall for containing a fluid. Wicking channels in the fluid chamber is adapted to wick a liquid phase of the fluid from a condensing section of the heat pipe to an evaporating section of the heat exchanger, and a laser diode is connected to the heat exchange wall at the evaporating section of the heat exchanger so that heat produced by the laser diode is removed isothermally from the evaporating section to the condensing section by a liquid-to-vapor phase change of the fluid.Type: GrantFiled: March 24, 2016Date of Patent: September 19, 2017Assignee: Lawrence Livermore National Security, LLCInventors: Todd Bandhauer, Robert J. Deri, John W. Elmer, Jack Kotovsky, Susant Patra
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Patent number: 9588058Abstract: Systems and techniques for non-destructive evaluation of water ingress in photovoltaic modules include and/or are configured to illuminate a photovoltaic module comprising a photovoltaic cell and an encapsulant with at least one beam of light having a wavelength in a range from about 1400 nm to about 2700 nm; capture one or more images of the illuminated photovoltaic module, each image relating to a water content of the photovoltaic module; and determine a water content of the photovoltaic module based on the one or more images. Systems preferably include one or more of a light source, a moving mirror, a focusing lens, a beam splitter, a stationary mirror, an objective lens and an imaging module.Type: GrantFiled: December 29, 2015Date of Patent: March 7, 2017Assignee: Lawrence Livermore National Security, LLCInventors: Mihail Bora, Jack Kotovsky
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Publication number: 20160315445Abstract: A laser diode package includes a heat pipe having a fluid chamber enclosed in part by a heat exchange wall for containing a fluid. Wicking channels in the fluid chamber is adapted to wick a liquid phase of the fluid from a condensing section of the heat pipe to an evaporating section of the heat exchanger, and a laser diode is connected to the heat exchange wall at the evaporating section of the heat exchanger so that heat produced by the laser diode is removed isothermally from the evaporating section to the condensing section by a liquid-to-vapor phase change of the fluid.Type: ApplicationFiled: March 24, 2016Publication date: October 27, 2016Inventors: Todd Bandhauer, Robert J. Deri, John W. Elmer, Jack Kotovsky, Susant Patra
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Patent number: 8811445Abstract: A substrate having an upper surface and a lower surface is provided. The substrate includes a plurality of v-grooves formed in the upper surface. Each v-groove includes a first side and a second side perpendicular to the first side. A laser diode bar assembly is disposed within each of the v-grooves and attached to the first side. The laser diode bar assembly includes a first adhesion layer disposed on the first side of the v-groove, a metal plate attached to the first adhesion layer, a second adhesion layer disposed over the metal plate, and a laser diode bar attached to the second adhesion layer. The laser diode bar has a coefficient of thermal expansion (CTE) substantially similar to that of the metal plate.Type: GrantFiled: March 29, 2010Date of Patent: August 19, 2014Assignee: Lawrence Livermore National Security, LLCInventors: Robert J. Deri, Diana Chen, Andy Bayramian, Barry Freitas, Jack Kotovsky
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Patent number: 8715882Abstract: A phosphoric acid fuel cell according to one embodiment includes an array of microchannels defined by a porous electrolyte support structure extending between bottom and upper support layers, the microchannels including fuel and oxidant microchannels; fuel electrodes formed along some of the microchannels; and air electrodes formed along other of the microchannels. A method of making a phosphoric acid fuel cell according to one embodiment includes etching an array of microchannels in a substrate, thereby forming walls between the microchannels; processing the walls to make the walls porous, thereby forming a porous electrolyte support structure; forming anode electrodes along some of the walls; forming cathode electrodes along other of the walls; and filling the porous electrolyte support structure with a phosphoric acid electrolyte. Additional embodiments are also disclosed.Type: GrantFiled: July 1, 2010Date of Patent: May 6, 2014Assignee: Lawrene Livermore National Security, LLC.Inventors: David A. Sopchak, Jeffrey D. Morse, Ravindra S. Upadhye, Jack Kotovsky, Robert T. Graff
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Patent number: 8646335Abstract: A method for producing a contact stress sensor that includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.Type: GrantFiled: January 12, 2012Date of Patent: February 11, 2014Assignee: Lawrence Livermore National Security, LLCInventor: Jack Kotovsky
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Patent number: 8342005Abstract: All-optical photoacoustic spectrometer sensing systems (PASS system) and methods include all the hardware needed to analyze the presence of a large variety of materials (solid, liquid and gas). Some of the all-optical PASS systems require only two optical-fibers to communicate with the opto-electronic power and readout systems that exist outside of the material environment. Methods for improving the signal-to-noise are provided and enable mirco-scale systems and methods for operating such systems.Type: GrantFiled: December 1, 2009Date of Patent: January 1, 2013Assignee: Lawrence Livermore National Security, LLCInventors: Jack Kotovsky, William J. Benett, Angela C. Tooker, Jennifer B. Alameda
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Patent number: 8208508Abstract: A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the phase transition. Once the laser diode is turned off, the liquid metal cools off and resolidifies. The reservoir is designed such that that the liquid metal does not leave the reservoir even when in liquid state. The laser diode assembly further includes a lid with one or more fin structures that extend into the reservoir and are in contact with the metal in the reservoir.Type: GrantFiled: August 4, 2011Date of Patent: June 26, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Robert J. Deri, Jack Kotovsky, Christopher M. Spadaccini
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Patent number: 8208509Abstract: A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the phase transition. Once the laser diode is turned off, the liquid metal cools off and resolidifies. The reservoir is designed such that that the liquid metal does not leave the reservoir even when in liquid state. The laser diode assembly further includes a lid with one or more fin structures that extend into the reservoir and are in contact with the metal in the reservoir.Type: GrantFiled: August 4, 2011Date of Patent: June 26, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Robert J. Deri, Jack Kotovsky, Christopher M. Spadaccini
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Publication number: 20120144924Abstract: A method for producing a contact stress sensor that includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.Type: ApplicationFiled: January 12, 2012Publication date: June 14, 2012Applicant: Lawrence Livermore National Security, LLCInventor: Jack Kotovsky
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Patent number: 8199787Abstract: A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the phase transition. Once the laser diode is turned off, the liquid metal cools off and resolidifies. The reservoir is designed such that that the liquid metal does not leave the reservoir even when in liquid state. The laser diode assembly further includes a lid with one or more fin structures that extend into the reservoir and are in contact with the metal in the reservoir.Type: GrantFiled: August 4, 2011Date of Patent: June 12, 2012Assignee: Lawrence Livermore National Security, LLCInventors: Robert J. Deri, Jack Kotovsky, Christopher M. Spadaccini
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Patent number: 8109149Abstract: A contact stress sensor includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a thermal compensator and a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.Type: GrantFiled: November 19, 2008Date of Patent: February 7, 2012Assignee: Lawrence Livermore National Security, LLCInventor: Jack Kotovsky
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Publication number: 20110286482Abstract: A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the phase transition. Once the laser diode is turned off, the liquid metal cools off and resolidifies. The reservoir is designed such that that the liquid metal does not leave the reservoir even when in liquid state. The laser diode assembly further includes a lid with one or more fin structures that extend into the reservoir and are in contact with the metal in the reservoir.Type: ApplicationFiled: August 4, 2011Publication date: November 24, 2011Applicant: Lawrence Livermore National Security, LLCInventors: Robert J. Deri, Jack Kotovsky, Christopher M. Spadaccini