Patents by Inventor David Erwin
David Erwin 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: 11975807Abstract: An aquatic rescue vehicle formed by adding directional and speed controls to a watercraft along with an autonomous control system to guide the vehicle to specified waypoints is disclosed. The rescue vehicle includes search devices such as a radio direction finder (RDF) and an infrared sensor (or camera) to be used to narrow the search for an isolated person (IP). The rescue vehicle may be discharged from a larger watercraft or an airplane and autonomously set out on its rescue mission. The vehicle may first navigate to a designated waypoint near an IP, and then use signals gathered from the RDF and infrared sensor to finally locate, assist, and retrieve the IP. The vehicle also includes a self-righting mechanism so that the vehicle can complete its mission even under the most adverse conditions.Type: GrantFiled: September 20, 2021Date of Patent: May 7, 2024Assignee: United States of America as represented by the Secretary of the Air ForceInventors: Hayk Azatyan, William Erwin, Anthony Ligouri, Travis Rennich, David Shald, Adam Warren
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Patent number: 11967104Abstract: A method of determining the location of an object in a camera field of view is disclosed. The method may utilize a camera system that includes a digital video camera and a computer that runs image analysis software for analyzing images received from the camera. The image analysis software is configured to isolate pixel groups in each image. The method includes the steps of locating an object in the camera's field of view in which the object is represented by a set of pixels; identifying the centroid of the set of pixels representing the object; and calculating the location of the object relative to the camera based upon known parameters including the focal plane and camera lens location.Type: GrantFiled: November 29, 2021Date of Patent: April 23, 2024Assignee: United States of America as represented by the Secretary of the Air ForceInventors: Anthony Ligouri, Hayk Azatyan, William Erwin, Travis Rennich, David Shald, Adam Warren
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Publication number: 20240105968Abstract: In some embodiments, fuel cell assemblies can include fuel cell flow field plates with reduced, if not eliminated, transition regions. In some embodiments, methods and apparatus can reduce, if not eliminate, the area occupied by transition regions on a fuel cell plate in a fuel cell assembly. In some embodiments, the fuel cell stacks can include an oxidant inlet assembly including a sculpted oxidant inlet connector, and a feed-plate with a sculpted opening. In some embodiments, the fuel cell stacks can include an oxidant outlet assembly including a feed-plate with a sculpted opening, and a sculpted oxidant outlet connector.Type: ApplicationFiled: October 4, 2023Publication date: March 28, 2024Inventors: David Erwin Kadylak, Claudette Kennette, Matthew Paone
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Patent number: 11906199Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core. Spacing between adjacent panels may be smaller than a thickness of the panels.Type: GrantFiled: January 12, 2023Date of Patent: February 20, 2024Assignee: CORE ENERGY RECOVERY SOLULTIONS INC.Inventors: Curtis Warren Mullen, David Erwin Kadylak, Christopher Robert Barr, James Franklin Dean, Guy Timothy Pearson
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Publication number: 20230387443Abstract: The present technology relates to apparatus and methods for providing contact pressure distribution between fuel cell components in a fuel cell stack. In some embodiments, the technology relates to fuel cell flow field plate designs and to compression systems for fuel cell stacks that can be used, separately or in combination, to provide more uniform contact pressure distribution across the active area of fuel cells in a fuel cell stack.Type: ApplicationFiled: May 5, 2023Publication date: November 30, 2023Inventors: Matthew Guenther, David Erwin Kadylak, Sean Michael MacKinnon, Andrea Pulskamp, Matthew Paul Paone
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Publication number: 20230243526Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core.Type: ApplicationFiled: January 12, 2023Publication date: August 3, 2023Inventors: Curtis Warren MULLEN, David Erwin KADYLAK, Christopher Robert BARR, James Franklin DEAN, Guy Timothy PEARSON
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Patent number: 11578881Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core. Spacing between adjacent panels may be smaller than a thickness of the panels.Type: GrantFiled: October 23, 2020Date of Patent: February 14, 2023Assignee: CORE Energy Recovery Solutions Inc.Inventors: Curtis Warren Mullen, David Erwin Kadylak, Christopher Robert Barr, James Franklin Dean, Guy Timothy Pearson
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Publication number: 20210186146Abstract: An article of footwear includes a door, positioned in a rear portion of an upper of the article of footwear. The door is movable between a first, closed position, and a second, open position. In the closed position, the door is releasably secured to an adjacent portion of the upper. In the open position, the door is releasably held in the open position, and a foot of the user may be inserted into or removed from the article. An actuator is in cooperative engagement with the door. The actuator is positioned in or on a rear portion of a heel and configured to be actuated only via striking a rear portion of the heel of the footwear on the back. Responsive to actuation of the actuator, the door moves between the closed position and the open position, thereby permitting hands-free donning and removal of the article of footwear.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Inventor: David Erwin
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Publication number: 20210108807Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core.Type: ApplicationFiled: October 23, 2020Publication date: April 15, 2021Inventors: Curtis Warren MULLEN, David Erwin KADYLAK, Christopher Robert BARR, James Franklin DEAN, Guy Timothy PEARSON
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Patent number: 10845068Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core. Spacing between adjacent panels may be smaller than a thickness of the panels.Type: GrantFiled: December 16, 2016Date of Patent: November 24, 2020Assignee: CORE Energy Recovery Solutions Inc.Inventors: Curtis Warren Mullen, David Erwin Kadylak, Christopher Robert Barr, James Franklin Dean, Guy Timothy Pearson
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Publication number: 20200047941Abstract: A carton (1) having a first end and a second end; a plurality of side panels (9, 11); and a sloping face at the first end of the carton. The sloping face is defined by a first triangular lid panel (3) at the first carton end. A first edge of the first triangular lid panel (3) is connected along a foldline (15) to the end of a first one of the side panels at the first carton end. The carton includes a second triangular lid panel (5) at the first end of the carton providing an end face for the carton at the first carton end. A first edge of the second triangular lid panel (5) is connected to a second edge of the first triangular lid panel (3) along a foldline (17). The carton includes a plurality of lid support panels underlying the first and second triangular lid panels (3,5) at the first carton end.Type: ApplicationFiled: March 23, 2018Publication date: February 13, 2020Inventors: David Erwin, Nigel Davis
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Publication number: 20190285289Abstract: A heat and humidity exchanger has example application in exchanging heat and water vapor between fresh air entering a building and air being vented from the building. The heat and humidity exchanger has a self-supporting core formed from layered sheets of a moisture-permeable material. Plenums are arranged to direct fluid streams into and out of the core. The plenums may be on opposing sides of the core to permit counterflow exchange of heat and water vapor.Type: ApplicationFiled: April 24, 2019Publication date: September 19, 2019Inventors: James Franklin DEAN, David Erwin KADYLAK, Ryan Nicholas HUIZING, Jordan Benda BALANKO, Curtis Warren MULLEN
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Patent number: 10317095Abstract: A heat and humidity exchanger has example application in exchanging heat and water vapor between fresh air entering a building and air being vented from the building. The heat and humidity exchanger has a self-supporting core formed from layered sheets of a moisture-permeable material. Plenums are arranged to direct fluid streams into and out of the core. The plenums may be on opposing sides of the core to permit counterflow exchange of heat and water vapor.Type: GrantFiled: June 16, 2016Date of Patent: June 11, 2019Assignee: CORE Energy Recovery Solutions Inc.Inventors: James Franklin Dean, David Erwin Kadylak, Ryan Nicholas Huizing, Jordan Benda Balanko, Curtis Warren Mullen
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Publication number: 20180363929Abstract: A heat and humidity exchanger comprises panels made up of membrane sheets attached on either side of a separator. Channels extend across each panel between the separator and the membrane sheets. The panels are much stiffer than the membrane sheets. Panels are stacked in a spaced apart relationship to provide an ERV core.Type: ApplicationFiled: December 16, 2016Publication date: December 20, 2018Inventors: Curtis Warren MULLEN, David Erwin KADYLAK, Christopher Robert BARR, James Franklin DEAN, Guy Timothy PEARSON
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Patent number: 10071134Abstract: A method for treating or preventing a T-cell-mediated autoimmune disease is provided herein, the method including administering to a mammal in need thereof a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells. Also provided are pharmaceutical compositions for treating or preventing T-cell-mediated autoimmune diseases, the pharmaceutical compositions including a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells and a pharmaceutically-acceptable carrier.Type: GrantFiled: June 6, 2017Date of Patent: September 11, 2018Assignee: University of CincinnatiInventors: William Ridgway, David Erwin Adams, Kritika Kachapati
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Publication number: 20170274043Abstract: A method for treating or preventing a T-cell-mediated autoimmune disease is provided herein, the method including administering to a mammal in need thereof a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells. Also provided are pharmaceutical compositions for treating or preventing T-cell-mediated autoimmune diseases, the pharmaceutical compositions including a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells and a pharmaceutically-acceptable carrier.Type: ApplicationFiled: June 6, 2017Publication date: September 28, 2017Inventors: William Ridgway, David Erwin Adams, Kritika Kachapati
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Publication number: 20170274042Abstract: A method for treating or preventing a T-cell-mediated autoimmune disease is provided herein, the method including administering to a mammal in need thereof a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells. Also provided are pharmaceutical compositions for treating or preventing T-cell-mediated autoimmune diseases, the pharmaceutical compositions including a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells and a pharmaceutically-acceptable carrier.Type: ApplicationFiled: June 6, 2017Publication date: September 28, 2017Inventors: William Ridgway, David Erwin Adams, Kritika Kachapati
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Publication number: 20160290664Abstract: A heat and humidity exchanger has example application in exchanging heat and water vapor between fresh air entering a building and air being vented from the building. The heat and humidity exchanger has a self-supporting core formed from layered sheets of a moisture-permeable material. Plenums are arranged to direct fluid streams into and out of the core. The plenums may be on opposing sides of the core to permit counterflow exchange of heat and water vapor.Type: ApplicationFiled: June 16, 2016Publication date: October 6, 2016Inventors: James Franklin DEAN, David Erwin KADYLAK, Ryan Nicholas HUIZING, Jordan Benda BALANKO, Curtis Warren MULLEN
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Publication number: 20140326432Abstract: A heat and humidity exchanger has example application in exchanging heat and water vapour between fresh air entering a building and air being vented from the building. The heat and humidity exchanger has a self-supporting core formed from layered sheets (710, 720) of a moisture-permeable material. Plenums (750) are arranged to direct fluid streams into and out of the core. The plenums (750) may be on opposing sides of the core to permit counterflow exchange of heat and water vapour. The plenums (750) are attached to the core along opposite edges of the sheets (710, 720).Type: ApplicationFiled: December 19, 2012Publication date: November 6, 2014Applicant: dPoint Technologies Inc.Inventors: James Franklin Dean, David Erwin Kadylak, Ryan Nicholas Huizing, Jordan Benda Balanko, Curtis Warren Mullen
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Publication number: 20140154277Abstract: A method for treating or preventing a T-cell-mediated autoimmune disease is provided herein, the method including administering to a mammal in need thereof a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells. Also provided are pharmaceutical compositions for treating or preventing T-cell-mediated autoimmune diseases, the pharmaceutical compositions including a therapeutically effective amount of soluble CD137 or CD137pos regulatory T cells and a pharmaceutically-acceptable carrier.Type: ApplicationFiled: January 22, 2014Publication date: June 5, 2014Applicant: University of CincinnatiInventors: William Ridgway, David Erwin Adams, Kritika Kachapati