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Porositization Process of Carbon or Carbonaceous Materials
Patent relating to porositized carbon processed from carbon or carbonaceous materials.
Date:
March 14, 2014
Creator:
Shi, Sheldon Q. & Xia, Changlei
System:
The UNT Digital Library
Fluorinated Metal-Organic Frameworks for Gas Storage
Patent relating to fluorinated metal-organic frameworks for gas storage.
Date:
September 12, 2008
Creator:
Omary, Mohammad A. & Yang, Chi
System:
The UNT Digital Library
Fluorinated Metal-Organic Frameworks for Gas Storage
Patent relating to fluorinated metal-organic frameworks for gas storage.
Date:
September 12, 2008
Creator:
Omary, Mohammad A. & Yang, Chi
System:
The UNT Digital Library
Method, System and Apparatus for Automatic Keyword Extraction
Patent relating to a method, system and apparatus for automatic keyword extraction.
Date:
November 6, 2009
Creator:
Csomai, Andras & Mihalcea, Rada, 1974-
System:
The UNT Digital Library
Method of Enhancing Quality Factors in Cotton
Patent relating to a method of enhancing quality factors in cotton.
Date:
June 9, 2006
Creator:
Hake, Kater Davis; Chapman, Kent D.; Kerby, Thomas Arthur & Speed, Thomas Rainey
System:
The UNT Digital Library
Composition of Epoxy Resin, Aliphatic Amine Curing Agent and Halogenated Amine
Patent relating to the composition of epoxy resin, aliphatic amine curing agent and halogenated amine.
Date:
March 10, 2009
Creator:
Bilyeu, Bryan; Brostow, Witold, 1934- & Menard, Kevin P.
System:
The UNT Digital Library
Plant Fatty Acid Amide Hydrolases
Patent relating to plant fatty acid amide hydrolases (FAAH) coding sequences.
Date:
January 8, 2008
Creator:
Chapman, Kent D.; Shrestha, Rhidaya; Blancaflor, Elison B. & Dixon, R. A.
System:
The UNT Digital Library
Clutch Driven Reaction Wheel Steering Unit
Patent relating to a clutch driven reaction wheel steering unit.
Date:
April 5, 2005
Creator:
Smith, Monty J. & Maestas, Jeffrey E.
System:
The UNT Digital Library
Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters
The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.
Date:
January 3, 2006
Creator:
VanOsdol, John
System:
The UNT Digital Library
Heterodyne Interferometer with Angstrom-level Periodic Nonlinearity
Displacement measuring interferometer systems and methods are disclosed. One or more acousto-optic modulators for receiving a laser light beam from a laser light source can be utilized to split the laser light beam into two or more laser light beams, while spatially separating frequencies thereof. One or more reflective mechanisms can be utilized to reflect one or more of the laser light beams back to the acoustooptic modulator. Interference of two or more of the laser light beams generally at the acousto-optic modulator can provide an interfered laser light beam thereof. A detector for receiving the interfered laser light beam can be utilized to provide interferometer measurement data.
Date:
January 25, 2005
Creator:
Schmitz, Tony L. & Beckwith, John F.
System:
The UNT Digital Library
Bead and Process for Removing Dissolved Metal Contaminants
A bead is provided which comprises or consists essentially of activated carbon immobilized by crosslinked poly (carboxylic acid) binder, sodium silicate binder, or polyamine binder. The bead is effective to remove metal and other ionic contaminants from dilute aqueous solutions. A method of making metal-ion sorbing beads is provided, comprising combining activated carbon, and binder solution (preferably in a pin mixer where it is whipped), forming wet beads, and heating and drying the beads. The binder solution is preferably poly(acrylic acid) and glycerol dissolved in water and the wet beads formed from such binder solution are preferably heated and crosslinked in a convection oven.
Date:
January 18, 2005
Creator:
Summers, Bobby L., Jr.; Bennett, Karen L. & Foster, Scott A.
System:
The UNT Digital Library
Method and Appartus for Calibrating a Linear Variable Differential Transformer
A calibration apparatus for calibrating a linear variable differential transformer (LVDT) having an armature positioned in au LVDT armature orifice, and the armature able to move along an axis of movement. The calibration apparatus includes a heating mechanism with an internal chamber, a temperature measuring mechanism for measuring the temperature of the LVDT, a fixture mechanism with an internal chamber for at least partially accepting the LVDT and for securing the LVDT within the heating mechanism internal chamber, a moving mechanism for moving the armature, a position measurement mechanism for measuring the position of the armature, and an output voltage measurement mechanism. A method for calibrating an LVDT, including the steps of powering the LVDT; heating the LVDT to a desired temperature; measuring the position of the armature with respect to the armature orifice; and measuring the output voltage of the LVDT.
Date:
January 18, 2005
Creator:
Pokrywka, Robert J.
System:
The UNT Digital Library
Rotating Aperture System
A rotating aperture system includes a low-pressure vacuum pumping stage with apertures for passage of a deuterium beam. A stator assembly includes holes for passage of the beam. The rotor assembly includes a shaft connected to a deuterium gas cell or a crossflow venturi that has a single aperture on each side that together align with holes every rotation. The rotating apertures are synchronized with the firing of the deuterium beam such that the beam fires through a clear aperture and passes into the Xe gas beam stop. Portions of the rotor are lapped into the stator to improve the sealing surfaces, to prevent rapid escape of the deuterium gas from the gas cell.
Date:
January 18, 2005
Creator:
Rusnak, Brian; Hall, James M.; Shen, Stewart & Wood, Richard L.
System:
The UNT Digital Library
Process and Apparatus for Energy Storage and Release
Patent regarding a process and apparatus for energy storage and release.
Date:
May 14, 2004
Creator:
Imholt, Timothy; Allara, David L., 1937-; Gnade, Bruce & Roberts, James A.
System:
The UNT Digital Library
Plasma Synthesis of Lithium Based Intercalation Powders for Solid Polymer Electrolyte Batteries
The invention relates to a process for preparing lithium intercalation compounds by plasma reaction comprising the steps of: forming a feed solution by mixing lithium nitrate or lithium hydroxide or lithium oxide and the required metal nitrate or metal hydroxide or metal oxide and between 10-50% alcohol by weight; mixing the feed solution with O2 gas wherein the O2 gas atomizes the feed solution into fine reactant droplets, inserting the atomized feed solution into a plasma reactor to form an intercalation powder; and if desired, heating the resulting powder to form a very pure single phase product.
Date:
January 4, 2005
Creator:
Kong, Peter C.; Pink, Robert J. & Nelson, Lee O.
System:
The UNT Digital Library
Method for making devices having intermetallic structures and intermetallic devices made thereby
A method and system for making a monolithic intermetallic structure are presented. The structure is made from lamina blanks which comprise multiple layers of metals which are patternable, or intermetallic lamina blanks that are patternable. Lamina blanks are patterned, stacked and registered, and processed to form a monolithic intermetallic structure. The advantages of a patterned monolithic intermetallic structure include physical characteristics such as melting temperature, thermal conductivity, and corrosion resistance. Applications are broad, and include among others, use as a microreactor, heat recycling device, and apparatus for producing superheated steam. Monolithic intermetallic structures may contain one or more catalysts within the internal features.
Date:
January 6, 2004
Creator:
Paul, Brian Kevin; Wilson, Rick D. & Alman, David E.
System:
The UNT Digital Library
Apparatus and Method for Increasing the Diameter of Metal Alloy Wires Within a Molten Metal Pool
In a dip forming process the core material to be coated is introduced directly into a source block of coating material eliminating the need for a bushing entrance component. The process containment vessel or crucible is heated so that only a portion of the coating material becomes molten, leaving a solid portion of material as the entrance port of, and seal around, the core material. The crucible can contain molten and solid metals and is especially useful when coating core material with reactive metals. The source block of coating material has been machined to include a close tolerance hole of a size and shape to closely fit the core material. The core material moves first through the solid portion of the source block of coating material where the close tolerance hole has been machined, then through a solid/molten interface, and finally through the molten phase where the diameter of the core material is increased. The crucible may or may not require water-cooling depending upon the type of material used in crucible construction. The system may operate under vacuum, partial vacuum, atmospheric pressure, or positive pressure depending upon the type of source material being used.
Date:
January 29, 2002
Creator:
Hartman, Alan D.; Argetsinger, Edward R.; Hansen, Jeffrey S.; Paige, Jack I.; King, Paul E. & Turner, Paul C.
System:
The UNT Digital Library
Pressure gradient passivation of carbonaceous material normally susceptible to spontaneous combustion
This invention is a process for the passivation or deactivation with respect to oxygen of a carbonaceous material by the exposure of the carbonaceous material to an oxygenated gas in which the oxygenated gas pressure is increased from a first pressure to a second pressure and then the pressure is changed to a third pressure. Preferably a cyclic process which comprises exposing the carbonaceous material to the gas at low pressure and increasing the pressure to a second higher pressure and then returning the pressure to a lower pressure is used. The cycle is repeated at least twice wherein the higher pressure may be increased after a selected number of cycles.
Date:
January 29, 2002
Creator:
Ochs, Thomas L.; Sands, William D.; Schroeder, Karl; Summers, Cathy A. & Utz, Bruce R.
System:
The UNT Digital Library
Polarization selecting Optical Element using a Porro Prism Incorporating a thin film Polarizer in a single element
A Porro prism and a light polarizer are combined in a single optical element termed a Hendrix Prism. The design provides retro-reflection of incoming light of a predetermined polarization in a direction anti-parallel to the direction of light incidence, while reflecting undesired light, i.e., that having a polarization orthogonal to the predetermined polarization, from the surface of the light polarizer. The undesired light is reflected in a direction that does not interfere with the intended operation of the device in which the Hendrix Prism is installed yet provides feedback to the system in which it is used.
Date:
January 28, 2000
Creator:
Hendrix, James lee
System:
The UNT Digital Library
Low Resistance Electrode Construction
An electrochemical cell having a cathode and an anode in contact with an electrolyte. Both electrodes or one of them has an electrically conducting non-metal receptacle defining a chamber with a first metal having a melting point in the range of from about room temperature to about 800 C inside said receptacle chamber. A second metal with a melting point greater than about 800 C is in contact with the first metal inside the receptacle chamber and extends outside of the receptacle chamber to form a terminal for the anode. The electrolyte may include the oxides, halides or mixtures thereof of one or more of Li, V, U, Al and the lanthanides. Metal may be produced at the cathode during operation of the cell and oxygen or chlorine at the anode.
Date:
January 20, 2000
Creator:
Redey, Laszlo & Karell, Eric
System:
The UNT Digital Library
Fabrication of Photonic band gap Materials
A method for forming a periodic dielectric structure exhibiting photonic band gap effects includes forming a slurry of a nano-crystalline ceramic dielectric or semiconductor material and monodisperse polymer microsphere, depositing a film of the slurry on a substrate, drying the film, and calcining the film to remove the polymer microsphere there from. The film may be cold-pressed after drying and prior to calcining. The ceramic dielectric or semiconductor material may be titania, and the polymer microsphere may be polystyrenemicrosphere.
Date:
January 5, 2000
Creator:
Constant, Kristen; Subramania, Ganapathi S.; Biswas, Rana & Ho, Kai-Ming
System:
The UNT Digital Library
Apparatus and Method for Ultra-Sensitive trace Analysis
An apparatus and method for conducting ultra-sensitive trace element and isotope analysis. The apparatus injects a sample through a fine nozzle to form an atomic beam. A DC discharge is used to elevate select atoms to a metastable energy level. These atoms are then acted on by a laser oriented orthogonally to the beam path to reduce the traverse velocity and to decrease the divergence angle of the beam. The beam then enters a Zeeman slower where a counter-propagating laser beam acts to slow the atoms down. Then select atoms are captured in a magneto-optical trap where they undergo fluorescence. A portion of the scattered photons are imaged onto a photo-detector, and the results analyzed to detect the presence of single atoms of the specific trace elements.
Date:
January 3, 2000
Creator:
Lu, Zhengtian; Bailey, Kevin G.; Chen, Chun Yen; Li, Yimin; O'Connor, Thomas P. & Young, Linda
System:
The UNT Digital Library
Superconducting thermoelectric generator
An apparatus and method for producing electricity from heat. The present invention is a thermoelectric generator that uses materials with substantially no electrical resistance, often called superconductors, to efficiently convert heat into electrical energy without resistive losses. Preferably, an array of superconducting elements is encased within a second material with a high thermal conductivity. The second material is preferably a semiconductor. Alternatively, the superconducting material can be doped on a base semiconducting material, or the superconducting material and the semiconducting material can exist as alternating, interleaved layers of waferlike materials. A temperature gradient imposed across the boundary of the two materials establishes an electrical potential related to the magnitude of the temperature gradient. The superconducting material carries the resulting electrical current at zero resistivity, thereby eliminating resistive losses. The elimination of resistive losses significantly increases the conversion efficiency of the thermoelectric device.
Date:
January 1, 1996
Creator:
Metzger, John D. & El-Genk, Mohammed S.
System:
The UNT Digital Library
Closed-field capacitive liquid level sensor
A liquid level sensor based on a closed field circuit comprises a ring oscillator using a symmetrical array of plate units that creates a displacement current. The displacement current varies as a function of the proximity of a liquid to the plate units. The ring oscillator circuit produces an output signal with a frequency inversely proportional to the presence of a liquid. A continuous liquid level sensing device and a two point sensing device are both proposed sensing arrangements. A second set of plates may be located inside of the probe housing relative to the sensing plate units. The second set of plates prevent any interference between the sensing plate units.
Date:
January 1, 1995
Creator:
Kronberg, J. W.
System:
The UNT Digital Library