Patents by Inventor David Devries
David Devries 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: 20090169939Abstract: A modular unit fuel cell is disclosed, which comprises a membrane electrode assembly (MEA), an anode current collector/porous transport layer (PTL), a bipolar separator plate (BSP), a corrugated or finned spring cooling and transport structure, a cathode current collector/PTL and an anode frame. In this embodiment, air is passed through the finned spring cooling and transport structure and the air acts as both the cathode reactant and as a coolant.Type: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Inventor: Peter David Devries
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Patent number: 7465507Abstract: A fuel cell power system has a fuel cell capable of generating electrical power, a battery holder releasably mounting at least one rechargeable battery, and a power controller which receives the electrical power from the fuel cell and distributes the electrical power to an output bus for use by an external load and to the battery for charging the battery. The rechargeable batteries may be easily inserted and removed from the system, with the batteries providing start-up power for the fuel cell power source, as well as surge power when the external electrical load is connected to the power system, or when the load exceeds the capacity of the fuel cell.Type: GrantFiled: September 21, 2004Date of Patent: December 16, 2008Assignee: Genesis Fueltech, Inc.Inventor: Peter David DeVries
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Publication number: 20080134577Abstract: A reforming and hydrogen purification system operating with minimal pressure drop for producing free hydrogen from different hydrogen rich fuels includes a hydrogen reforming catalyst bed in a vessel in communication with a core unit containing a hydrogen permeable selective membrane. The vessel is located within an insulated enclosure which forms an air inlet passageway and an exhaust passageway on opposite sides of the vessel. Air and raffinate pass through a burner within the air inlet passageway, providing a heated flue gas to heat the catalyst to the reaction temperature needed to generate free hydrogen from the feedstock. The burner flue gas flows laterally over and along the length of the bed between the input and output ends of the bed. Hydrogen is recovered from the core for use by a hydrogen-consuming device such as a fuel cell. The remaining unrecovered hydrogen in the reformed gases is contained in raffinate and is used to supply process heat via the burner.Type: ApplicationFiled: February 20, 2008Publication date: June 12, 2008Applicant: Genesis Fueltech, Inc.Inventor: Peter David DeVries
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Patent number: 7358006Abstract: A fuel cell power system is protected from electromagnetic pulse energy damage through the use of a protective enclosure. In addition, electrical lines entering or exiting the system contain voltage or current spike suppression devices sufficient to prevent damage to the electronics contained within the enclosure. Also, any openings in the enclosure will have electromagnetic pulse attenuating grids or honeycomb covers, and any viewing ports through the enclosure may be protected with transparent conductive materials, such as indium tin oxide coated onto glass.Type: GrantFiled: February 13, 2004Date of Patent: April 15, 2008Assignee: Genesis FuelTech, Inc.Inventor: Peter David DeVries
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Patent number: 7341609Abstract: A reforming and hydrogen purification system operating with minimal pressure drop for producing free hydrogen from different hydrogen rich fuels includes a hydrogen reforming catalyst bed in a vessel in communication with a core unit containing a hydrogen permeable selective membrane. The vessel is located within an insulated enclosure which forms an air inlet passageway and an exhaust passageway on opposite sides of the vessel. Air and raffinate pass through a burner within the air inlet passageway, providing a heated flue gas to heat the catalyst to the reaction temperature needed to generate free hydrogen from the feedstock. The burner flue gas flows laterally over and along the length of the bed between the input and output ends of the bed. Hydrogen is recovered from the core for use by a hydrogen-consuming device such as a fuel cell. The remaining unrecovered hydrogen in the reformed gases is contained in raffinate and is used to supply process heat via the burner.Type: GrantFiled: October 3, 2002Date of Patent: March 11, 2008Assignee: Genesis Fueltech, Inc.Inventor: Peter David DeVries
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Publication number: 20060145947Abstract: An electronic device (400) has a second body (405) with an image generation apparatus (450) and an optical system (460) and, a first body (445) for providing a virtual image. The first body (445) is foldably attached to the second body (405). Further, the electronic device (400) can include a third body (465) for providing a standard display (470) that is foldable attached to the second body.Type: ApplicationFiled: January 4, 2005Publication date: July 6, 2006Inventors: Theodore Arneson, David Devries, John Neumann, Michael Charlier
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Publication number: 20040161654Abstract: A fuel cell power system is protected from electromagnetic pulse energy damage through the use of a protective enclosure. In addition, electrical lines entering or exiting the system contain voltage or current spike suppression devices sufficient to prevent damage to the electronics contained within the enclosure. Also, any openings in the enclosure will have electromagnetic pulse attenuating grids or honeycomb covers, and any viewing ports through the enclosure may be protected with transparent conductive materials, such as indium tin oxide coated onto glass.Type: ApplicationFiled: February 13, 2004Publication date: August 19, 2004Inventor: Peter David DeVries
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Publication number: 20040065013Abstract: A reforming and hydrogen purification system operating with minimal pressure drop for producing free hydrogen from different hydrogen rich fuels includes a hydrogen reforming catalyst bed in a vessel in communication with a core unit containing a hydrogen permeable selective membrane. The vessel is located within an insulated enclosure which forms an air inlet passageway and an exhaust passageway on opposite sides of the vessel. Air and raffinate pass through a burner within the air inlet passageway, providing a heated flue gas to heat the catalyst to the reaction temperature needed to generate free hydrogen from the feedstock. The burner flue gas flows laterally over and along the length of the bed between the input and output ends of the bed. Hydrogen is recovered from the core for use by a hydrogen-consuming device such as a fuel cell. The remaining unrecovered hydrogen in the reformed gases is contained in raffinate and is used to supply process heat via the burner.Type: ApplicationFiled: October 3, 2002Publication date: April 8, 2004Inventor: Peter David DeVries
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Publication number: 20040044643Abstract: A mainframe computer executes multiple instances of virtual machines. An administrator uses a set of manager instances to create and manage a set of managed instances. The manager instances include a configuration manager that creates managed instances according to templates. A template describes aspects of a managed instance, including the resources and software available to it. The manager instances also include a file server that maps file access requests from managed instances to files in a storage device. The administrator installs software in the storage device and uses the templates and other data to create mappings in the file server that allow multiple managed instances to independently execute the software. The administrator can easily maintain the managed instances and software executed by the machines.Type: ApplicationFiled: April 10, 2003Publication date: March 4, 2004Inventors: David A. deVries, Arthur G. Olbert, David M. O'Neill, Christopher Neufeld
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Patent number: 6383556Abstract: A method for forming a membrane electrode diffusion assembly for use in an ion exchange membrane fuel cell is described and which includes, providing an ion conducting electrolyte membrane having opposite sides; and applying a first diffusion layer to one of the opposite sides of the ion conducting electrolyte membrane by the application of force sufficient to fabricate a resulting membrane electrode diffusion assembly which has an optimal operational temperature range when utilized in an ion exchange membrane fuel cell of less than about 95 degrees C.Type: GrantFiled: February 23, 2001Date of Patent: May 7, 2002Assignee: Avista Laboratories, Inc.Inventors: David R. Lott, P. David DeVries
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Publication number: 20010044373Abstract: A method for forming a membrane electrode diffusion assembly for use in an ion exchange membrane fuel cell is described and which includes, providing an ion conducting electrolyte membrane having opposite sides; and applying a first diffusion layer to one of the opposite sides of the ion conducting electrolyte membrane by the application of force sufficient to fabricate a resulting membrane electrode diffusion assembly which has an optimal operational temperature range when utilized in an ion exchange membrane fuel cell of less than about 95 degrees C.Type: ApplicationFiled: February 23, 2001Publication date: November 22, 2001Inventors: David R. Lott, P. David DeVries
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Patent number: 6218035Abstract: A proton exchange membrane fuel cell power system for producing electrical power is described and which includes a plurality of discrete fuel cell modules having at least two membrane electrode diffusion assemblies, each of the membrane electrode diffusion assemblies having opposite anode and cathode sides; a pair of current collectors are individually disposed in juxtaposed ohmic electrical contact with opposite anode and cathode sides of each of the membrane electrode diffusion assemblies; and individual force application assemblies apply a given force to the pair current collectors and the individual membrane electrode diffusion assemblies. The proton exchange membrane fuel cell power system also includes an enclosure mounting a plurality of subracks which receive the discrete fuel cell modules. Additionally, a control system is disclosed which optimizes the performance parameters of the discrete proton exchange membrane fuel cell modules.Type: GrantFiled: December 21, 1999Date of Patent: April 17, 2001Assignee: Avista Laboratories, Inc.Inventors: William A. Fuglevand, Shiblihanna I. Bayyuk, Greg Alden Lloyd, Peter David DeVries, David R. Lott, John P. Scartozzi, Gregory M. Somers, Ronald G. Stokes
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Patent number: 6181367Abstract: A video image viewing device includes first and second glass plates having a layer of liquid crystal therebetween. A plurality of laser diodes extending along a line near one edge of the first plate are selectively illuminated at an intensity corresponding to the amplitude of a video signal during each of a plurality of video lines. The light propagates through the first plate via total internal reflection not entering the liquid crystal layer until it reaches an area where the refractive index of the liquid crystal is selectively modified. The refractive index may be modified by selectively energizing each of a plurality of horizontal strip electrodes vertically spaced from each other. The electrodes are sequentially energized to frustrate the total internal refraction and thereby cause the light to be transmitted through the liquid crystal layer into the second plate at a location corresponding to the location of video line in a video frame of the video signal.Type: GrantFiled: July 16, 1999Date of Patent: January 30, 2001Assignee: New Light Industries, Ltd.Inventors: Stephen P. McGrew, P. David DeVries, Roger F. Wink, David H. Foster
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Patent number: 5973727Abstract: A video image viewing device includes first and second glass plates having a layer of liquid crystal therebetween. A plurality of laser diodes extending along a line near one edge of the first plate are selectively illuminated at an intensity corresponding to the amplitude of a video signal during each of a plurality of video lines. The light propagates through the first plate via total internal reflection not entering the liquid crystal layer until it reaches an area where the refractive index of the liquid crystal is selectively modified. The refractive index may be modified by selectively energizing each of a plurality of horizontal strip electrodes vertically spaced from each other. The electrodes are sequentially energized to frustrate the total internal refraction and thereby cause the light to be transmitted through the liquid crystal layer into the second plate at a location corresponding to the location of video line in a video frame of the video signal.Type: GrantFiled: May 13, 1997Date of Patent: October 26, 1999Assignee: New Light Industries, Ltd.Inventors: Stephen P. McGrew, P. David DeVries, Roger F. Wink, David H. Foster