Bradley D Leighty from 7093 Joyners Bridge Rd, Carrsville, VA 23315, age 66

Us Patents

Stabilized Tin-Oxide-Based Oxidation/Reduction Catalysts
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US Patent:

7390768, Jun 24, 2008
Filed:

Jan 22, 2002
Appl. No.:

10/056845
Inventors:

Jeffrey D. Jordan - Williamsburg VA, US
David R. Schryer - Hampton VA, US
Patricia P. Davis - Yorktown VA, US
Bradley D. Leighty - Gloucester VA, US
Anthony Neal Watkins - Hampton VA, US
Jacqueline L. Schryer - Hampton VA, US
Donald M. Oglesby - Virginia Beach VA, US
Suresh T. Gulati - Elmira NY, US
Jerry C. Summers - Charleston WV, US
Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:

B01J 23/00
B01J 21/00
B01D 53/46
US Classification:

502326, 502302, 502303, 502304, 502330, 502339, 502344, 502347, 502349, 502352, 4232453, 423247
Abstract:

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.

Sol-Gel Based Oxidation Catalyst And Coating System Using Same
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US Patent:

7655595, Feb 2, 2010
Filed:

Jun 2, 2006
Appl. No.:

11/421924
Inventors:

Anthony N. Watkins - Hampton VA, US
Bradley D. Leighty - Gloucester VA, US
Donald M. Oglesby - Virginia Beach VA, US
JoAnne L. Ingram - Manassas Park VA, US
Jacqueline L. Schryer - Hampton VA, US
Assignee:

United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:

B01J 23/00
B01J 23/02
B01J 23/40
B01J 23/42
B01J 23/44
B01J 21/00
B01J 21/04
B01J 20/00
US Classification:

502326, 502242, 502262, 502300, 502304, 502327, 502334, 502339, 502349, 502352, 502355, 502415, 502439
Abstract:

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.

Sol-Gel Based Oxidation Catalyst And Coating System Using Same
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US Patent:

7781366, Aug 24, 2010
Filed:

Feb 12, 2009
Appl. No.:

12/369932
Inventors:

Anthony N. Watkins - Hampton VA, US
Bradley D. Leighty - Gloucester VA, US
Donald M. Oglesby - Virginia Beach VA, US
JoAnne L. Patry - Dulles VA, US
Jacqueline L. Schryer - Hampton VA, US
Assignee:

The United States of America as represented by the United States National Aeronautics and Space Administration - Washington DC
International Classification:

B01J 23/00
B01J 21/00
B01J 20/00
B01J 29/00
US Classification:

502327, 502262, 502304, 502332, 502334, 502339, 502349, 502352, 502355, 502415, 502439
Abstract:

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.

Methodology For The Effective Stabilization Of Tin-Oxide-Based Oxidation/Reduction Catalysts
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US Patent:

7985709, Jul 26, 2011
Filed:

Sep 28, 2004
Appl. No.:

10/956515
Inventors:

Jeffrey D. Jordan - Williamsburg VA, US
David R. Schryer - Hampton VA, US
Patricia P. Davis - Yorktown VA, US
Bradley D. Leighty - Gloucester VA, US
Anthony N. Watkins - Hampton VA, US
Jacqueline L. Schryer - Hampton VA, US
Donald M. Oglesby - Virginia Beach VA, US
Suresh T. Gulati - Elmira NY, US
Jerry C. Summers - Charleston WV, US
Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:

B01J 23/00
B01J 21/00
B01J 20/00
US Classification:

502326, 502242, 502243, 502261, 502262, 502302, 502303, 502304, 502339, 502344, 502347, 502349, 502352, 502439
Abstract:

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.

Method For The Detection Of Volatile Organic Compounds Using A Catalytic Oxidation Sensor
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US Patent:

20040009605, Jan 15, 2004
Filed:

Jun 20, 2003
Appl. No.:

10/601801
Inventors:

Kenneth Brown - Norfolk VA, US
Donald Oglesby - Virginia Beach VA, US
Bradley Leighty - Gloucester VA, US
Erik Kielin - Alexandria VA, US
David Schryer - Hampton VA, US
Billy Upchurch - Virginia Beach VA, US
Assignee:

U.S. as represented by the Administrator of the National Aeronautics & Space Administration - Washington DC
International Classification:

G01N027/00
US Classification:

436/149000, 422/094000
Abstract:

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.

Sol-Gel-Based Methodology For The Preparation Of Oxidation/Reduction Catalysts
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US Patent:

20070037698, Feb 15, 2007
Filed:

Aug 12, 2005
Appl. No.:

11/203518
Inventors:

Anthony Watkins - Hampton VA, US
Jacqueline Schryer - Hampton VA, US
Jerry Summers - Charleston WV, US
Jeffrey Jordan - Lockport NY, US
Bradley Leighty - Gloucester VA, US
Patricia Davis - Yorktown VA, US
International Classification:

B01J 21/00
US Classification:

502263000, 502325000, 502326000, 502327000, 502332000, 502333000, 502334000, 502339000
Abstract:

A process for preparing an oxidation/reduction catalyst system includes providing a sol-gel precursor; providing a metal oxide wash coat mixture; and dispersing the sol-gel precursor in the metal oxide wash coat mixture to provide a dispersion of sol-gel precursor in metal oxide wash coat mixture. This dispersion of sol-gel precursor in metal oxide wash coat mixture is then deposited on a support, which is subsequently thermally-treated in an oxygen-containing environment to drive off volatiles and oxidize metallic components, thereby producing a thermally-treated support. Finally, a noble metal coating is applied to the thermally-treated support.

Catalytic Oxidation System
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US Patent:

20070183952, Aug 9, 2007
Filed:

Mar 4, 2004
Appl. No.:

10/795097
Inventors:

Jeffrey Jordan - Williamsburg VA, US
Anthony Watkins - Hampton VA, US
Bradley Leighty - Gloucester VA, US
Patricia Davis - Yorktown VA, US
David Schryer - Hampton VA, US
Richard Schwartz - Hayes VA, US
Jacqueline Schryer - Hampton VA, US
Donald Oglesby - Virginia Beach VA, US
Assignee:

U.S.A as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:

B01D 53/34
B01D 47/00
B01D 50/00
B01D 53/94
US Classification:

423212000, 422177000, 422180000
Abstract:

An exhaust gas treatment system having an exhaust gas inlet section, an oxygen enrichment system, catalyst holding arms, and an exhaust gas outlet section is disclosed. The exhaust gas inlet and outlet sections can be designed to mate to existing exhaust gas plumbing systems for industrial facilities. The optional oxygen enrichment system helps optimize catalytic performance by maintaining excess oxygen in the exhaust gas stream and by imparting greater turbulence to the exhaust gas stream. Disposed within each catalyst holding arm is at least one catalyst coated substrate where the catalytic oxidation of formaldehyde and other volatile organic compounds occurs. The catalytic substrate can be catalyst coated bricks, particles, beads, fabrics, or filter materials. Each catalyst holding arm can be selectively closed off using upstream and downstream isolation valves. Catalyst coated substrate longevity can be increased by the inclusion of an optional filter upstream of the catalyst coated substrates.

Arc Lamp Power Supply Using A Voltage Multiplier
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US Patent:

47230967, Feb 2, 1988
Filed:

Jun 27, 1986
Appl. No.:

6/879758
Inventors:

Bradley D. Leighty - Newport News VA
Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC
International Classification:

H02M 114
H05B 3700
US Classification:

315254
Abstract:

A power supply is provided for an arc discharge lamp (38) which includes a relatively low voltage high current power supply section and a high voltage starter circuit (10). The low voltage section includes a transformer (15), rectifier (24), variable resistor (26) and a bank of capacitors (28), while the starter circuit (10) comprises a plurality of diodes (D1 to D12) and capacitors (C1 to C12) connected as a Cockcroft-Walton multiplier. The starting circuit is effectively bypassed when the lamp arc is established and serves to automatically provide a high starting voltage to re-strike the lamp arc if the arc is extinguished by a power interruption.