Patents by Inventor Donald M. Oglesby
Donald M. Oglesby 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: 9733203Abstract: A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.Type: GrantFiled: April 28, 2016Date of Patent: August 15, 2017Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATIONInventors: Stanley E. Woodard, Donald M. Oglesby, Bryant D. Taylor
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Publication number: 20160238561Abstract: A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.Type: ApplicationFiled: April 28, 2016Publication date: August 18, 2016Inventors: Stanley E. Woodard, Donald M. Oglesby, Bryant D. Taylor
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Patent number: 9329149Abstract: A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.Type: GrantFiled: March 17, 2014Date of Patent: May 3, 2016Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Stanley E. Woodard, Donald M. Oglesby, Bryant D. Taylor
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Publication number: 20140199774Abstract: A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Inventors: Stanley E. Woodard, Donald M. Oglesby, Bryant D. Taylor
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Patent number: 8673649Abstract: A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.Type: GrantFiled: May 11, 2009Date of Patent: March 18, 2014Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Stanley E. Woodard, Donald M. Oglesby, Bryant Douglas Taylor
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Publication number: 20130273371Abstract: A process for producing highly monodisperse polystyrene particles includes steps of mixing water and styrene in a reactor, optionally adding an electrolyte to the mixture, purging the mixture of oxygen, adding a polymerization initiator while agitating and heating the mixture, and maintaining agitation and heating for a time sufficient to achieve a desired yield of monodisperse polystyrene particles having a particle size from 0.25 microns to 2.5 microns and a statistical quality factor greater than 10.Type: ApplicationFiled: April 11, 2012Publication date: October 17, 2013Applicant: U.S.A. as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Pacita I. Tiemsin, Donald M. Oglesby, Jacqueline L. Schryer
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Patent number: 7985709Abstract: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.Type: GrantFiled: September 28, 2004Date of Patent: July 26, 2011Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, David R. Schryer, Patricia P. Davis, Bradley D. Leighty, Anthony N. Watkins, Jacqueline L. Schryer, Donald M. Oglesby, Suresh T. Gulati, Jerry C. Summers
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Publication number: 20100233821Abstract: A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.Type: ApplicationFiled: May 11, 2009Publication date: September 16, 2010Applicant: USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Stanley E. Woodard, Donald M. Oglesby, Bryant Douglas Taylor
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Patent number: 7781366Abstract: An oxidation catalyst system is formed by particles of an oxidation catalyst dispersed in a porous sol-gel binder. The oxidation catalyst system can be applied by brush or spray painting while the sol-gel binder is in its sol state.Type: GrantFiled: February 12, 2009Date of Patent: August 24, 2010Assignee: The United States of America as represented by the United States National Aeronautics and Space AdministrationInventors: Anthony N. Watkins, Bradley D. Leighty, Donald M. Oglesby, JoAnne L. Patry, Jacqueline L. Schryer
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Patent number: 7655595Abstract: An oxidation catalyst system is formed by particles of an oxidation catalyst dispersed in a porous sol-gel binder. The oxidation catalyst system can be applied by brush or spray painting while the sol-gel binder is in its sol state.Type: GrantFiled: June 2, 2006Date of Patent: February 2, 2010Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Anthony N. Watkins, Bradley D. Leighty, Donald M. Oglesby, JoAnne L. Ingram, Jacqueline L. Schryer
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Publication number: 20090163357Abstract: An oxidation catalyst system is formed by particles of an oxidation catalyst dispersed in a porous sol-gel binder. The oxidation catalyst system can be applied by brush or spray painting while the sol-gel binder is in its sol state.Type: ApplicationFiled: February 12, 2009Publication date: June 25, 2009Applicant: USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Anthony N. Watkins, Bradley D. Leighty, Donald M. Oglesby, JoAnne L. Patry, Jacqueline L. Schryer
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Patent number: 7390768Abstract: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.Type: GrantFiled: January 22, 2002Date of Patent: June 24, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, David R. Schryer, Patricia P. Davis, Bradley D. Leighty, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby, Suresh T. Gulati, Jerry C. Summers
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Patent number: 7318915Abstract: This invention relates generally to a ruthenium stabilized oxidation-reduction catalyst useful for oxidizing carbon monoxide, and volatile organic compounds, and reducing nitrogen oxide species in oxidizing environments, substantially without the formation of toxic and volatile ruthenium oxide species upon said oxidizing environment being at high temperatures.Type: GrantFiled: January 13, 2003Date of Patent: January 15, 2008Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby
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Publication number: 20070281855Abstract: An oxidation catalyst system is formed by particles of an oxidation catalyst dispersed in a porous sol-gel binder. The oxidation catalyst system can be applied by brush or spray painting while the sol-gel binder is in its sol state.Type: ApplicationFiled: June 2, 2006Publication date: December 6, 2007Applicants: Space AdministrationInventors: Anthony N. Watkins, Bradley D. Leighty, Donald M. Oglesby, JoAnne L. Ingram, Jacqueline L. Schryer
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Patent number: 7194912Abstract: A sensor has a plurality of carbon nanotube (CNT)-based conductors operatively positioned on a substrate. The conductors are arranged side-by-side, such as in a substantially parallel relationship to one another. At least one pair of spaced-apart electrodes is coupled to opposing ends of the conductors. A portion of each of the conductors spanning between each pair of electrodes comprises a plurality of carbon nanotubes arranged end-to-end and substantially aligned along an axis. Because a direct correlation exists between resistance of a carbon nanotube and carbon nanotube strain, changes experienced by the portion of the structure to which the sensor is coupled induce a change in electrical properties of the conductors.Type: GrantFiled: July 13, 2004Date of Patent: March 27, 2007Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, Anthony Neal Watkins, Donald M. Oglesby, JoAnne L. Ingram
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Publication number: 20040009605Abstract: A means for detecting volatile organic compounds which utilizes a catalytic material to oxidize volatile organic compounds at temperatures substantially lower than the autoignition temperature of the compound. Because this reaction is exothermic, a thermistor in contact with the catalytic material is used to detect the heat evolved as volatile organic compounds are oxidized to carbon dioxide and water at the catalyst surface. Upon comparison to a reference thermistor, relative increases in the temperature of the sensing thermistor correspond positively with an increased concentration of volatile organic compounds and are thus used as an indicator of the presence of such compounds.Type: ApplicationFiled: June 20, 2003Publication date: January 15, 2004Applicant: U.S. as represented by the Administrator of the National Aeronautics & Space AdministrationInventors: Kenneth G. Brown, Donald M. Oglesby, Bradley D. Leighty, Erik J. Kielin, David R. Schryer, Billy T. Upchurch
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Publication number: 20030144143Abstract: This invention relates generally to a stabilization mechanism for use in oxidation/reduction catalyst systems. It particularly relates to a ruthenium stabilization mechanism that enables the use of inexpensive metallic species within catalyst systems targeted for the elimination of toxic emissions such as carbon monoxide, hydrocarbons, and other volatile organics, and specifically nitrogen oxide species. Said stabilization mechanism includes the use of zirconium-oxides in an oxidation-reduction catalyst.Type: ApplicationFiled: January 13, 2003Publication date: July 31, 2003Applicant: Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby
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Publication number: 20030139290Abstract: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.Type: ApplicationFiled: January 22, 2002Publication date: July 24, 2003Inventors: Jeffrey D. Jordan, David R. Schryer, Patricia P. Davis, Bradley D. Leighty, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby
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Patent number: 5948965Abstract: A means for detecting carbon monoxide which utilizes an un-heated catalytic material to oxidize carbon monoxide at ambient temperatures. Because this reaction is exothermic, a thermistor in contact with the catalytic material is used as a sensing element to detect the heat evolved as carbon monoxide is oxidized to carbon dioxide at the catalyst surface, without any heaters or external heating elements for the ambient air or catalytic element material. Upon comparison to a reference thermistor, relative increases in the temperature of the sensing thermistor correspond positively with an increased concentration of carbon monoxide in the ambient medium and are thus used as an indicator of the presence of carbon monoxide.Type: GrantFiled: April 28, 1997Date of Patent: September 7, 1999Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Billy T. Upchurch, George M. Wood, David R. Schryer, Bradley D. Leighty, Donald M. Oglesby, Erik J. Kielin, Kenneth G. Brown, Christine M. D'Ambrosia
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Patent number: 5296210Abstract: A process for stabilizing sodium dithionite is disclosed, whereby a selected additive is used.Type: GrantFiled: December 31, 1992Date of Patent: March 22, 1994Assignee: Hoechst Celanese CorporationInventor: Donald M. Oglesby