Patents by Inventor Eric Seymour
Eric Seymour 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: 20230395835Abstract: Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.Type: ApplicationFiled: May 5, 2023Publication date: December 7, 2023Applicant: AQUAHYDREX, INC.Inventors: Eric SEYMOUR, Gregory KUMOR, Erik T. HERRERA, Byron J. BURKILL, David COX, Sandeep NIJHAWAN, Cameron TAVENER-SMITH, Wayne Richard HEMZACEK, Nathaniel Martin SCHUH
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Patent number: 11682783Abstract: Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.Type: GrantFiled: April 12, 2021Date of Patent: June 20, 2023Assignee: AQUAHYDREX, INC.Inventors: Eric Seymour, Gregory Kumor, Erik T. Herrera, Byron J. Burkill, David Cox, Sandeep Nijhawan, Cameron Tavener-Smith, Wayne Richard Hemzacek, Nathaniel Martin Schuh
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Patent number: 11601040Abstract: AC to DC power supplies are disclosed. One AC to DC power supply includes a transformer having a primary side and a secondary side and a passive rectifier coupled to the secondary side of the transformer. The passive rectifier is configured to rectify AC power at the secondary side to DC power at an output of the rectifier. An active rectifier is configured to control voltages applied to the primary side of the transformer to induce a non-sinusoidal voltage at the secondary side of the transformer and a sinusoidal current drawn by the passive rectifier. An isolating DC-to-DC converter is coupled between the active rectifier and the output of the passive rectifier to magnetically couple power from the active rectifier to the output of the passive rectifier while galvanically isolating the active rectifier from the output of the passive rectifier.Type: GrantFiled: December 18, 2020Date of Patent: March 7, 2023Assignee: AquaHydrex, Inc.Inventor: Eric Seymour
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Publication number: 20220145479Abstract: Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.Type: ApplicationFiled: January 31, 2020Publication date: May 12, 2022Applicant: AQUAHYDREX, INC.Inventors: Eric SEYMOUR, Gregory KUMOR, Erik T. HERRERA, Byron J. BURKILL, David COX, Sandeep NIJHAWAN, Cameron TAVENER-SMITH, Wayne Richard HEMZACEK, Nathaniel Martin SCHUH
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Publication number: 20210363651Abstract: DC power distribution systems and corresponding methods are disclosed herein. One method includes performing a first voltage conversion using an active rectifier to convert a first input AC voltage to a first output DC voltage and supplying the first output DC voltage from the active rectifier to a DC bus. The first output DC voltage from the DC bus is provided to a second input at a bucking cell-stack regulator, and a second voltage conversion, from the second input DC voltage to a second output DC voltage, is performed using the bucking cell-stack regulator. The second output DC voltage is applied to a DC load.Type: ApplicationFiled: June 20, 2019Publication date: November 25, 2021Inventors: Eric Seymour, Gerhard Frederick Swiegers
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Publication number: 20210336284Abstract: Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.Type: ApplicationFiled: April 12, 2021Publication date: October 28, 2021Applicant: AQUAHYDREX, INC.Inventors: Eric SEYMOUR, Gregory KUMOR, Erik T. HERRERA, Byron J. BURKILL, David COX, Sandeep NIJHAWAN, Cameron TAVENER-SMITH, Wayne Richard HEMZACEK, Nathaniel Martin SCHUH
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Patent number: 11005117Abstract: Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.Type: GrantFiled: October 1, 2020Date of Patent: May 11, 2021Assignee: AQUAHYDREX, INC.Inventors: Eric Seymour, Gregory Kumor, Erik T. Herrera, Byron J. Burkill, David Cox, Sandeep Nijhawan, Cameron Tavener-Smith, Wayne Richard Hemzacek, Nathaniel Martin Schuh
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Publication number: 20210111635Abstract: AC to DC power supplies are disclosed. One AC to DC power supply includes a transformer having a primary side and a secondary side and a passive rectifier coupled to the secondary side of the transformer. The passive rectifier is configured to rectify AC power at the secondary side to DC power at an output of the rectifier. An active rectifier is configured to control voltages applied to the primary side of the transformer to induce a non-sinusoidal voltage at the secondary side of the transformer and a sinusoidal current drawn by the passive rectifier. An isolating DC-to-DC converter is coupled between the active rectifier and the output of the passive rectifier to magnetically couple power from the active rectifier to the output of the passive rectifier while galvanically isolating the active rectifier from the output of the passive rectifier.Type: ApplicationFiled: December 18, 2020Publication date: April 15, 2021Inventor: Eric Seymour
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Publication number: 20210020975Abstract: Described herein are systems and methods for the management and control of electrolyte within confined electrochemical cells or groups (e.g. stacks) of connected electrochemical cells, for example, in an electrolyzer. Various embodiments of systems and methods provide for the elimination of parasitic conductive paths between cells, and/or precise passive control of fluid pressures within cells. In some embodiments, a fixed volume of electrolyte is substantially retained within each cell while efficiently collecting and removing produced gases or other products from the cell.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Applicant: AQUAHYDREX, INC.Inventors: Eric SEYMOUR, Gregory KUMOR, Erik T. HERRERA, Byron J. BURKILL, David COX, Sandeep NIJHAWAN, Cameron TAVENER-SMITH, Wayne Richard HEMZACEK, Nathaniel Martin SCHUH
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Publication number: 20190305688Abstract: DC power supply systems and methods are disclosed. A power supply system includes a variable frequency drive (VFD) configured to convert AC power at a VFD input to controlled AC power at a VFD output, and the VFD is configured to control a frequency and voltage of the controlled AC power responsive to a control input. The power supply system also includes a transformer including a primary side coupled to the VFD output and a secondary side and a rectifier coupled to the secondary side of the transformer, and one or more sensors are coupled to the output of the rectifier to monitor the DC power. A controller is coupled to the one or more sensors, and the controller is configured to provide the control input to the VFD to adjust the controlled AC in response to changes to the one or more characteristics of the DC power.Type: ApplicationFiled: December 13, 2017Publication date: October 3, 2019Inventor: Eric Seymour
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Patent number: 9577454Abstract: A method for operating a plurality of energy storage devices includes controlling operation of the plurality of energy storage devices connected in series by independently varying a current and/or bypassing and/or reversing a polarity of at least one of the plurality of energy storage devices without a corresponding change in current, bypass, or reversal of polarity of one or more of the other energy storage devices connected in series.Type: GrantFiled: April 11, 2014Date of Patent: February 21, 2017Assignee: PRIMUS POWER CORPORATIONInventors: Eric Seymour, Jonathan Hall, Ryan Larsen
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Patent number: 9536132Abstract: Techniques and mechanisms are provided for facilitating the capture and review of visual images by visually impaired users. In one implementation, these techniques and mechanisms provide pre image capture functionality and captured image review functionality. With the pre image capture functionality, audio messages are provided to the user to help the user position an image capturing mechanism properly to capture the desired subjects in a picture, to frame the subjects properly within the picture, to size the subjects properly within the picture, etc. With the image review functionality, audio messages are provided to the user to help the user enjoy and “visualize” a visual image that has been captured and is being displayed to the user. With these functionalities, a visually impaired user is able capture and review images to a much greater degree than is currently possible.Type: GrantFiled: September 28, 2011Date of Patent: January 3, 2017Assignee: Apple Inc.Inventors: Jerremy Holland, Eric Seymour, Chris Fleizach, Dean Hudson
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Patent number: 9287802Abstract: Systems and methods for referencing a photovoltaic array are disclosed. An exemplary method includes converting DC power with an inverter from a photovoltaic array to AC power at a line frequency and placing the entire photovoltaic array above ground potential or below ground potential. The AC power is transformed with a transformer and an integrity-check signal is generated to vary a voltage of the photovoltaic array to perform an integrity check. A star point of the transformer is pinned to ground at the line frequency so the integrity-check signal is applied to the DC-side of the inverter and a limited level of fault current is allowed to flow from ground to the star point of the transformer to facilitate a detection of ground faults.Type: GrantFiled: November 19, 2012Date of Patent: March 15, 2016Assignee: Advanced Energy Industries, Inc.Inventors: Eric Seymour, Dustin Kramer
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Patent number: 9172296Abstract: A photovoltaic system, method and apparatus are disclosed. In an exemplary embodiment, the system includes a photovoltaic array, a distribution system that distributes power within a premises of a demand-side energy consumer, an inverter coupled to the distribution system that is configured to convert DC power from the photovoltaic array to AC power and apply the AC power to the distribution system, a damping portion configured to damp high frequency voltages derived from the inverter, and trapping circuitry coupled to the damping portion that is configured to reduce a level of low frequency current traveling through the damping portion.Type: GrantFiled: May 19, 2008Date of Patent: October 27, 2015Assignee: Advanced Energy Industries, Inc.Inventors: Eric Seymour, Jack Arthur Gilmore, Mike Armstrong
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Publication number: 20150295442Abstract: A method for operating a plurality of energy storage devices includes controlling operation of the plurality of energy storage devices connected in series by independently varying a current and/or bypassing and/or reversing a polarity of at least one of the plurality of energy storage devices without a corresponding change in current, bypass, or reversal of polarity of one or more of the other energy storage devices connected in series.Type: ApplicationFiled: April 11, 2014Publication date: October 15, 2015Applicant: Primus Power CorporationInventors: Eric Seymour, Jonathan Hall, Ryan Larsen
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Patent number: 9148086Abstract: A photovoltaic energy conversion system, apparatus, and method for controlling DC sub-arrays of a photovoltaic array are disclosed. The method may include coupling each of N homerun branches from N sub-arrays to an inverter via N switches and monitoring current through each of the N homerun branches. A forward current through each of the N homerun branches is compared with a forward current threshold, and any backfeed current through any of the N homerun branches is compared with a backfeed current threshold. One or more of the N switches are opened in response to either the forward current exceeding the forward current threshold or the backfeed current exceeding a backfeed current threshold.Type: GrantFiled: October 21, 2014Date of Patent: September 29, 2015Assignee: Advanced Energy Industries, Inc.Inventors: John Michael Fife, Eric Seymour
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Publication number: 20150107646Abstract: A photovoltaic energy conversion system, apparatus, and method for controlling DC sub-arrays of a photovoltaic array are disclosed. The method may include coupling each of N homerun branches from N sub-arrays to an inverter via N switches and monitoring current through each of the N homerun branches. A forward current through each of the N homerun branches is compared with a forward current threshold, and any backfeed current through any of the N homerun branches is compared with a backfeed current threshold. One or more of the N switches are opened in response to either the forward current exceeding the forward current threshold or the backfeed current exceeding a backfeed current threshold.Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventors: John Michael Fife, Eric Seymour
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Publication number: 20140265590Abstract: Methods and devices for pre-regulating power are disclosed herein. The method may include sectioning at least a portion of a photovoltaic array into two array subsections and applying power from the two array subsections to a power conversion component. A voltage that is applied by each of the two subsections varies with environmental conditions affecting the two array sections. A connection between the two array subsections is alternated from a series arrangement and a parallel arrangement to regulate a voltage level of the power that is applied by both of the two subsections to the power conversion component.Type: ApplicationFiled: March 15, 2014Publication date: September 18, 2014Applicant: Advanced Energy Industries, Inc.Inventor: Eric Seymour
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Patent number: 8769408Abstract: Techniques and systems for intelligent navigation of sequential media content are disclosed. The intelligent navigation is well suited to enable users to better control media playback with regards to a media playback application operating on a computing device. One embodiment of a method for playing sequential media content by a media playback application operating on a computing device includes at least the acts of: initiating playing of the sequential media content by the media playback application; receiving a user input requesting to start playing at a new position in the sequential media content; marking a current position in the sequential media content; thereafter initiating playing of the sequential media content at the new position; receiving a user input requesting to reset playing to the marked current position; and subsequently initiating playing of the sequential media content at the marked current position.Type: GrantFiled: October 11, 2005Date of Patent: July 1, 2014Assignee: Apple Inc.Inventors: Thomas Madden, Eric Seymour, Scott Forstall, Celia Vigil, Imran Chaudhri
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Publication number: 20140139031Abstract: Systems and methods for referencing a photovoltaic array are disclosed. An exemplary method includes converting DC power with an inverter from a photovoltaic array to AC power at a line frequency and placing the entire photovoltaic array above ground potential or below ground potential. The AC power is transformed with a transformer and an integrity-check signal is generated to vary a voltage of the photovoltaic array to perform an integrity check. A star point of the transformer is pinned to ground at the line frequency so the integrity-check signal is applied to the DC-side of the inverter and a limited level of fault current is allowed to flow from ground to the star point of the transformer to facilitate a detection of ground faults.Type: ApplicationFiled: November 19, 2012Publication date: May 22, 2014Applicant: ADVANCED ENERGY INDUSTRIES, INC.Inventors: Eric Seymour, Dustin Kramer