Patents by Inventor Roddie R. Judkins
Roddie R. Judkins 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: 9394672Abstract: An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores.Type: GrantFiled: June 11, 2013Date of Patent: July 19, 2016Assignee: UT-BATTELLE, LLCInventors: Roddie R. Judkins, Brian L. Bischoff, Melanie Moses Debusk, Chaitanya Narula
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Publication number: 20130276632Abstract: An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores.Type: ApplicationFiled: June 11, 2013Publication date: October 24, 2013Inventors: Roddie R. JUDKINS, Brian L. BISCHOFF, Melanie Moses DEBUSK, Chaitanya NARULA
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Patent number: 8511072Abstract: An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores.Type: GrantFiled: March 24, 2011Date of Patent: August 20, 2013Assignee: UT-Battelle, LLCInventors: Roddie R. Judkins, Brian L. Bischoff, Melanie Moses Debusk, Chaitanya Narula
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Publication number: 20120240563Abstract: An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores.Type: ApplicationFiled: March 24, 2011Publication date: September 27, 2012Applicant: UT-Battelle, LLCInventors: Roddie R. Judkins, Brian L. Bischoff, Melanie Moses Debusk, Chaitanya Kumar Narula
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Patent number: 7829012Abstract: A method for treating a porous item constructed of metal powder, such as a powder made of Series 400 stainless steel, involves a step of preheating the porous item to a temperature of between about 700 and 900° C. degrees in an oxidizing atmosphere and then sintering the body in an inert or reducing atmosphere at a temperature which is slightly below the melting temperature of the metal which comprises the porous item. The thermal stability of the resulting item is enhanced by this method so that the item retains its porosity and metallic characteristics, such as ductility, at higher (e.g. near-melting) temperatures.Type: GrantFiled: December 19, 2005Date of Patent: November 9, 2010Assignee: Worldwide Energy, Inc. of DelawareInventors: Brian L. Bischoff, Theodore G. Sutton, Roddie R. Judkins, Timothy R. Armstrong, Kenneth D. Adcock
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Publication number: 20090286107Abstract: The invention relates to a ferritic alloy composition. In one aspect, the ferritic alloy composition comprises about 16 to 20 wt. % Cr, about 7 to 11 wt. % Mo, and the balance Fe. In another aspect, the ferritic composition comprises about 10 to 14 wt. % Cr, about 7 to 11 wt. % Mo or about 10 to 20 wt. % W, and the balance Fe.Type: ApplicationFiled: May 13, 2008Publication date: November 19, 2009Applicant: UT-BATTELLE, LLCInventors: Bruce A. Pint, Beth L. Armstrong, Ian G. Wright, Michael P. Brady, Peter F. Tortorelli, Roddie R. Judkins, Timothy R. Armstrong, Carolyn Christine Judkins
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Patent number: 7484626Abstract: A water filter includes a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 ?m; and a carbon filter medium membrane disposed thereon which is characterized by a mean particle size of no more than 50 ?m and a mean pore size of no more than 7.2 ?m.Type: GrantFiled: March 23, 2006Date of Patent: February 3, 2009Assignee: UT-Battelle, LLCInventor: Roddie R. Judkins
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Patent number: 7438733Abstract: A method for converting fuel energy to electricity includes the steps of converting a higher molecular weight gas into at least one mixed gas stream of lower average molecular weight including at least a first lower molecular weight gas and a second gas, the first and second gases being different gases, wherein the first lower molecular weight gas comprises H2 and the second gas comprises CO. The mixed gas is supplied to at least one turbine to produce electricity. The mixed gas stream is divided after the turbine into a first gas stream mainly comprising H2 and a second gas stream mainly comprising CO. The first and second gas streams are then electrochemically oxidized in separate fuel cells to produce electricity. A nuclear reactor can be used to supply at least a portion of the heat the required for the chemical conversion process.Type: GrantFiled: September 22, 2006Date of Patent: October 21, 2008Assignee: UT-Battelle, LLCInventors: Solomon D. Labinov, Timothy R. Armstrong, Roddie R. Judkins
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Patent number: 6375716Abstract: A gas separation device includes an inner conduit, and a concentric outer conduit. An electrically conductive filter media, preferably a carbon fiber composite molecular sieve, is provided in the annular space between the inner conduit and the outer conduit. Gas flows through the inner conduit and the annular space between the inner conduit and the outer conduit, so as to contact the filter media. The filter media preferentially adsorbs at least one constituent of the gas stream. The filter media is regenerated by causing an electric current to flow through the filter media. The inner conduit and outer conduit are preferably electrically conductive whereby the regeneration of the filter media can be electrically stimulated. The invention is particularly useful for the removal of CO2 from the exhaust gases of fossil-fueled power plants.Type: GrantFiled: December 13, 2000Date of Patent: April 23, 2002Assignee: UT-Battelle, LLCInventors: Timothy D. Burchell, Roddie R. Judkins, Kirk A. Wilson
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Patent number: 6375705Abstract: Oxide dispersion strengthening of porous metal articles includes the incorporation of dispersoids of metallic oxides in elemental metal powder particles. Porous metal articles, such as filters, are fabricated using conventional techniques (extrusion, casting, isostatic pressing, etc.) of forming followed by sintering and heat treatments that induce recrystallization and grain growth within powder grains and across the sintered grain contact points. The result is so-called “oxide dispersion strengthening” which imparts, especially, large increases in creep (deformation under constant load) strength to the metal articles.Type: GrantFiled: March 26, 1999Date of Patent: April 23, 2002Assignee: U. T. Battelle, LLCInventor: Roddie R. Judkins
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Patent number: 6090477Abstract: A carbon fiber carbon matrix hybrid adsorbent monolith with enhanced thermal conductivity for storing and releasing gas through adsorption and desorption is disclosed. The heat of adsorption of the gas species being adsorbed is sufficiently large to cause hybrid monolith heating during adsorption and hybrid monolith cooling during desorption which significantly reduces the storage capacity of the hybrid monolith, or efficiency and economics of a gas separation process. The extent of this phenomenon depends, to a large extent, on the thermal conductivity of the adsorbent hybrid monolith. This invention is a hybrid version of a carbon fiber monolith, which offers significant enhancements to thermal conductivity and potential for improved gas separation and storage systems.Type: GrantFiled: September 11, 1998Date of Patent: July 18, 2000Assignee: UT-Battelle, LLCInventors: Timothy D. Burchell, Michael Ray Rogers, Roddie R. Judkins
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Patent number: 5972077Abstract: A method and apparatus for separating one constituent, especially carbon dioxide, from a fluid mixture, such as natural gas. The fluid mixture flows through an adsorbent member having an affinity for molecules of the one constituent, the molecules being adsorbed on the adsorbent member. A voltage is applied to the adsorbent member, the voltage imparting a current flow which causes the molecules of the one constituent to be desorbed from the adsorbent member.Type: GrantFiled: February 20, 1998Date of Patent: October 26, 1999Assignee: Lockheed Martin Energy Research CorporationInventors: Roddie R. Judkins, Timothy D. Burchell
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Patent number: 5925168Abstract: A method for separating gases or other fluids involves placing a magnetic field on a monolithic carbon fiber composite sorption material to more preferentially attract certain gases or other fluids to the sorption material to which a magnetic field is applied. This technique may be combined with the known "pressure swing adsorption" technique utilizing the same sorption material.Type: GrantFiled: January 31, 1997Date of Patent: July 20, 1999Inventors: Roddie R. Judkins, Timothy D. Burchell
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Patent number: 5912424Abstract: Systems and methods for electrical swing natural gas adsorption are described. An apparatus includes a pressure vessel; an electrically conductive gas adsorptive material located within the pressure vessel; and an electric power supply electrically connected to said adsorptive material. The adsorptive material can be a carbon fiber composite molecular sieve (CFCMS). The systems and methods provide advantages in that both a high energy density and a high ratio of delivered to stored gas are provided.Type: GrantFiled: March 31, 1997Date of Patent: June 15, 1999Assignee: Lockheed Martin Energy Research CorporationInventors: Roddie R. Judkins, Timothy D. Burchell
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Patent number: 5827355Abstract: An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply airstream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium.Type: GrantFiled: January 31, 1997Date of Patent: October 27, 1998Assignee: Lockheed Martin Energy Research CorporationInventors: Kirk A. Wilson, Timothy D. Burchell, Roddie R. Judkins