Patents by Inventor James R. Elliott, Jr.
James R. Elliott, Jr. 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: 8217143Abstract: Metal nanoshells are fabricated by admixing an aqueous solution of metal ions with an aqueous solution of apoferritin protein molecules, followed by admixing an aqueous solution containing an excess of an oxidizing agent for the metal ions. The apoferritin molecules serve as bio-templates for the formation of metal nanoshells, which form on and are bonded to the inside walls of the hollow cores of the individual apoferritin molecules. Control of the number of metal atoms which enter the hollow core of each individual apoferritin molecule provides a hollow metal nonparticle, or nanoshell, instead of a solid spherical metal nanoparticle.Type: GrantFiled: July 12, 2007Date of Patent: July 10, 2012Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administration of NASAInventors: Jae-Woo Kim, Sang H. Choi, Peter T. Lillehei, Sang-Hyon Chu, Yeonjoon Park, Glen C. King, James R. Elliott, Jr.
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Patent number: 8020805Abstract: A new High Altitude Airship (HAA) capable of various extended applications and mission scenarios utilizing inventive onboard energy harvesting and power distribution systems. The power technology comprises an advanced thermoelectric (ATE) thermal energy conversion system. The high efficiency of multiple stages of ATE materials in a tandem mode, each suited for best performance within a particular temperature range, permits the ATE system to generate a high quantity of harvested energy for the extended mission scenarios. When the figure of merit 5 is considered, the cascaded efficiency of the three-stage ATE system approaches an efficiency greater than 60 percent.Type: GrantFiled: July 31, 2007Date of Patent: September 20, 2011Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Sang H. Choi, James R. Elliott, Jr., Glen C. King, Yeonjoon Park, Jae-Woo Kim, Sang-Hyon Chu
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Publication number: 20110117690Abstract: A new fabrication method for nanovoids-imbedded bismuth telluride (Bi—Te) material with low dimensional (quantum-dots, quantum-wires, or quantum-wells) structure was conceived during the development of advanced thermoelectric (TE) materials. Bismuth telluride is currently the best-known candidate material for solid-state TE cooling devices because it possesses the highest TE figure of merit at room temperature. The innovative process described here allows nanometer-scale voids to be incorporated in Bi—Te material. The final nanovoid structure such as void size, size distribution, void location, etc. can be also controlled under various process conditions.Type: ApplicationFiled: December 3, 2010Publication date: May 19, 2011Applicants: National Institute of Aerospace Associates, and Space AdministrationInventors: Sang-Hyon Chu, Sang Hyouk Choi, Jae-Woo Kim, Yeonjoon Park, James R. Elliott, JR., Glen C. King, Diane M. Stoakley
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Publication number: 20090203196Abstract: Metal and semiconductor nanoshells, particularly transition metal nanoshells, are fabricated using dendrimer molecules. Metallic colloids, metallic ions or semiconductors are attached to amine groups on the dendrimer surface in stabilized solution for the surface seeding method and the surface seedless method, respectively. Subsequently, the process is repeated with additional metallic ions or semiconductor, a stabilizer, and NaBH4 to increase the wall thickness of the metallic or semiconductor lining on the dendrimer surface. Metallic or semiconductor ions are automatically reduced on the metallic or semiconductor nanoparticles causing the formation of hollow metallic or semiconductor nanoparticles. The void size of the formed hollow nanoparticles depends on the dendrimer generation. The thickness of the metallic or semiconductor thin film around the dendrimer depends on the repetition times and the size of initial metallic or semiconductor seeds.Type: ApplicationFiled: December 4, 2008Publication date: August 13, 2009Applicants: National Institute of Aerospace Associates, USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jae-Woo KIM, Sang H. CHOI, SR., Peter T. LILLEHEI, Sang-Hyon CHU, Yeonjoon PARK, Glen C. KING, James R. ELLIOTT, JR.
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Patent number: 7514726Abstract: A lattice matched silicon germanium (SiGe) semiconductive alloy is formed when a {111} crystal plane of a cubic diamond structure SiGe is grown on the {0001} C-plane of a single crystalline Al2O3 substrate such that a <110> orientation of the cubic diamond structure SiGe is aligned with a <1,0,?1,0> orientation of the {0001} C-plane. A lattice match between the substrate and the SiGe is achieved by using a SiGe composition that is 0.7223 atomic percent silicon and 0.2777 atomic percent germanium. A layer of Si1-xGex is formed on the cubic diamond structure SiGe. The value of X (i) defines an atomic percent of germanium satisfying 0.2277<X<1.0, (ii) is approximately 0.2777 where the layer of Si1-xGex interfaces with the cubic diamond structure SiGe, and (iii) increases linearly with the thickness of the layer of Si1-xGex.Type: GrantFiled: March 21, 2006Date of Patent: April 7, 2009Assignee: The United States of America as represented by the Aministrator of the National Aeronautics and Space AdministrationInventors: Yeonjoon Park, Sang H. Choi, Glen C. King, James R. Elliott, Jr., Diane M. Stoakley
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Patent number: 7510802Abstract: A thin-film electrode for a bio-nanobattery is produced by consecutively depositing arrays of a ferritin protein on a substrate, employing a spin self-assembly procedure. By this procedure, a first ferritin layer is first formed on the substrate, followed by building a second, oppositely-charged ferritin layer on the top of the first ferritin layer to form a bilayer structure. Oppositely-charged ferritin layers are subsequently deposited on top of each other until a desired number of bilayer structures is produced. An ordered, uniform, stable and robust, thin-film electrode material of enhanced packing density is presented, which provides optimal charge density for the bio-nanobattery.Type: GrantFiled: March 9, 2006Date of Patent: March 31, 2009Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administration of NASAInventors: Sang-Hyon Chu, Sang H. Choi, Jae-Woo Kim, Peter T. Lillehei, Yeonjoon Park, Glen C. King, James R. Elliott, Jr.
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Publication number: 20090072078Abstract: A new High Altitude Airship (HAA) capable of various extended applications and mission scenarios utilizing inventive onboard energy harvesting and power distribution systems. The power technology comprises an advanced thermoelectric (ATE) thermal energy conversion system. The high efficiency of multiple stages of ATE materials in a tandem mode, each suited for best performance within a particular temperature range, permits the ATE system to generate a high quantity of harvested energy for the extended mission scenarios. When the figure of merit 5 is considered, the cascaded efficiency of the three-stage ATE system approaches an efficiency greater than 60 percent.Type: ApplicationFiled: July 31, 2007Publication date: March 19, 2009Applicants: Space AdministrationInventors: Sang H. Choi, James R. Elliott, JR., Glen C. King, Yeonjoon Park, Jae-Woo Kim, Sang-Hyon Chu
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Patent number: 7379231Abstract: A light control device is formed by ferroelectric material and N electrodes positioned adjacent thereto to define an N-sided regular polygonal region or circular region therebetween where N is a multiple of four.Type: GrantFiled: September 7, 2006Date of Patent: May 27, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Yeonjoon Park, Sang H. Choi, Glen C. King, Jae-Woo Kim, James R. Elliott, Jr.
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Patent number: 5261757Abstract: A device for mounting a data transmission apparatus to a rotating, tapered and instrumented shaft is provided. This device permits attachment without interfering with shaft rotation or the accuracy of data output, and prevents both radial and axial slippage of the data transmission apparatus. The mounting device consists of a sleeve assembly which is attached to the shaft with clamps that are situated at some distance removed from the instrumented area of the shaft. The data transmission device is secured to the sleeve such that the entire assembly rotates with the shaft. Shim adjustments between sleeve sections assure that a minimum compressive load is transferred to the instrumented area of the shaft and a rubber lining is affixed to a large portion of the interior surface of the sleeve to absorb vibration.Type: GrantFiled: October 3, 1991Date of Patent: November 16, 1993Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: James R. Elliott, Jr., Mark T. Lord
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Patent number: 4325588Abstract: A bearing take-up apparatus includes a rigid base having spaced upstanding walls between which a bearing housing having recesses in its upper surface is slidably received. A threaded screw having anchoring means rigidly secured on its ends and nuts intermediate its ends is lowered onto upper surfaces of the end walls with the nuts positioned to be received within the recesses while the anchoring means overhang the end walls. A cover is lowered over the screw and connecting means are provided for releasably connecting the cover to the end walls.Type: GrantFiled: May 30, 1980Date of Patent: April 20, 1982Assignee: P T Components, Inc.Inventors: James R. Elliott, Jr., Kathy L. Layne, Donald W. Hitch, Larry G. Marshall