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Rescuing Texas History, 2019
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The Civil War and its Aftermath: Diverse Perspectives
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States
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Month
Process to Accomplish Autothermal or Steam Reforming Via a Reciprocating Compression Device
The invention provides a method and apparatus for producing a synthesis gas from a variety of hydrocarbons. The apparatus (device) consists of a semi-batch, non-constant volume reactor to generate a synthesis gas. While the apparatus feeds mixtures of air, steam, and hydrocarbons into a cylinder where work is performed on the fluid by a piston to adiabatically raise its temperature without heat transfer from an external source.
Date:
September 21, 2004
Creator:
Lyons, David K.; James, Robert; Berry, David A. & Gardern, Todd
System:
The UNT Digital Library
Method for Generating Numerical Values Indicative of Frequencies of Selected Features in Objects, and a Computer System Implementing the Method
Patent relating to methods for generating numerical values indicative of frequencies of selected features in objects, and a computer system implementing the method.
Date:
November 21, 2001
Creator:
Rorvig, Mark E. & Jeong, Kitai
System:
The UNT Digital Library
Process and Apparatus for Microwave Desorption of Elements of Species from Carbon Nanotubes
Patent relating to the process and apparatus for microwave desorption of elements or species from carbon nanotubes.
Date:
January 23, 2004
Creator:
Tour, James M.; Roberts, James A. & Imholt, Timothy
System:
The UNT Digital Library
Method and Apparatus for Remote Delivery and Manipulation of a Miniature Tool Adjacent a Work Piece in a Restricted Space
An apparatus for remote delivery and manipulation of a miniature tool adjacent a work piece in a restricted space, includes a tool camer, a camage for manipulating the tool carrier relative to the work piece, a first actuator for operating the carnage, and an optional remote secondary operating actuator for operating the first actuator.
Date:
August 10, 2004
Creator:
Sale, Christopher H. & Kaltenbaugh, Daniel R.
System:
The UNT Digital Library
Video Toroid Cavity Imager
A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.
Date:
August 10, 2004
Creator:
Gerald, Rex E., II; Sanchez, Jairo & Rathke, Jerome W.
System:
The UNT Digital Library
Method to Remove Uranium/Vanadium Contamination from Groundwater
A process for removing uranium/vanadium-based contaminants from groundwater using a primary in-ground treatment media and a pretreatment media that chemically adjusts the groundwater contaminant to provide for optimum treatment by the primary treatment media.
Date:
July 27, 2004
Creator:
Metzler, Donald R. & Stanley, Morrison
System:
The UNT Digital Library
Reaction-Forming Method for Producing Near Net-Shape Refractory Metal Carbides
A method for reaction forming refractory metal carbides. The method involves the fabrication of a glassy carbon preform by casting an organic, resin-based liquid mixture into a mold and subsequently heat treating it in two steps, which cures and pyrolizes the resin resulting in a porous carbon preform. By varying the amounts of the constituents in the organic, resin-based liquid mixture, control over the density of the carbon preform is obtained. Control of the density and microstructure of the carbon preform allows for determination of the microstructure and properties of the refractory metal carbide material produced. The glassy carbon preform is placed on a bed of refractory metal or refractory metal--silicon alloy. The pieces are heated above the melting point of the metal or alloy. The molten metal wicks inside the porous carbon preform and reacts, forming the refractory metal carbide or refractory metal carbide plus a minor secondary phase.
Date:
July 20, 2004
Creator:
Palmisiano, Marc N.; Jakubenas, Kevin J. & Baranwal, Rita
System:
The UNT Digital Library
Smart Radiological Dosimeter
A radiation dosimeter providing an indication of the dose of radiation to which the radiation sensor has been exposed. The dosimeter contains features enabling the monitoring and evaluating of radiological risks so that a user can concentrate on the task at hand. The dosimeter provides an audible alarm indication that a predetermined time period has elapsed, an audible alarm indication reminding the user to check the dosimeter indication periodically, an audible alarm indicating that a predetermined accumulated dose has been prematurely reached, and an audible alarm indication prior or to reaching the 3/4 scale point.
Date:
July 20, 2004
Creator:
Kosslow, William J. & Bandzuch, Gregory S.
System:
The UNT Digital Library
Method of Determining the Extent to which a Nickel Structure has been Attached by a Fluorine-Containing Gas
The method of determining the extent to which a nickel structure has been attacked by a halogen containing gas to which it has been exposed which comprises preparing a quantity of water substantially free from dissolved oxygen, passing ammonia gas through a cuprammonium solution to produce ammonia substantially free from oxygen, dissolving said oxygen-free ammonia in said water to produce a saturated aqueous ammonia solution free from uncombined oxygen, treating at least a portion of said nickel structure of predetermined weight with said solution to dissolve nickel compounds from the surface of said structure without dissolving an appreciable amount of said nickel and analyzing the resulting solution to determine the quantity of said nickel compounds that was associated with said said portion of said structure to determine the proportion of combined nickel in said nickel structure.
Date:
July 13, 2004
Creator:
Brusie, James P.
System:
The UNT Digital Library
Low Temperature Sorbents for Removal of Sulfur Compounds from Fluid Feed Streams
A sorbent material is provided comprising a material reactive with sulfur, a binder unreactive with sulfur and an inert material, wherein the sorbent absorbs the sulfur at temperatures between 30 and 200 C. Sulfur absorption capacity as high as 22 weight percent has been observed with these materials.
Date:
June 1, 2004
Creator:
Siriwardane, Ranjani
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
Method for removal of mercury from various gas streams
The invention provides for a method for removing elemental mercury from a fluid, the method comprising irradiating the mercury with light having a wavelength of approximately 254 nm. The method is implemented in situ at various fuel combustion locations such as power plants and municipal incinerators.
Date:
June 10, 2003
Creator:
Granite, E. J. & Pennline, H. W.
System:
The UNT Digital Library
Method for processing aluminum spent potliner in a graphite electrode arc furnace
A method of processing spent aluminum pot liner containing carbon, cyanide compositions, fluorides and inorganic oxides. The spend aluminum pot liner is crushed, iron oxide is added to form an agglomerated material. The agglomerated material is melted in an electric arc furnace having the electrodes submerged in the molten material to provide a reducing environment during the furnace operation. In the reducing environment, pot liner is oxidized while the iron oxides are reduced to produce iron and a slag substantially free of cyanide compositions and fluorides. An off-gas including carbon oxides and fluorine is treated in an air pollution control system with an afterburner and a scrubber to produce NaF, water and a gas vented to the atmosphere free of cyanide compositions, fluorine, and CO.
Date:
December 24, 2002
Creator:
O'Connor, William K.; Turner, Paul C. & Addison, G.W. (AJT Enterprises, Inc.)
System:
The UNT Digital Library
Oxidation resistant alloys, method for producing oxidation resistant alloys
A method for producing oxidation-resistant austenitic alloys for use at temperatures below 800 C. comprising of: providing an alloy comprising, by weight %: 14-18% chromium, 15-18% nickel, 1-3% manganese, 1-2% molybdenum, 2-4% silicon, 0% aluminum and the balance being iron; heating the alloy to 800 C. for between 175-250 hours prior to use in order to form a continuous silicon oxide film and another oxide film. The method provides a means of producing stainless steels with superior oxidation resistance at temperatures above 700 C. at a low cost
Date:
November 5, 2002
Creator:
Dunning, John S. & Alman, David E.
System:
The UNT Digital Library
One-piece, composite crucible with integral withdrawal/discharge section
A one-piece, composite open-bottom casting mold with integral withdrawal section is fabricated by thermal spraying of materials compatible with and used for the continuous casting of shaped products of reactive metals and alloys such as, for example, titanium and its alloys or for the gas atomization thereof.
Date:
July 30, 2002
Creator:
Besser, Matthew; Terpstra, Robert L. (Iowa State Univ., Ames, IA); Sordelet, Daniel J.; Anderson, Iver E.; Hartman, Alan D.; Argetsinger, Edward R. et al.
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
Film for Use in Microelectronic Devices and Methods of Producing Same
Patent relating to film for use in microelectronic devices and methods of producing same.
Date:
July 27, 2000
Creator:
Kelber, Jeffry A.
System:
The UNT Digital Library
Containment canister for capturing hazardous waste debris during piping modifications
The present invention relates to a containment canister for capturing hazardous waste debris during modifications to gloveboxes, or other radiological or biochemical hoods (generally termed gloveboxes therein), that require drilling and welding operations. Examples of such modifications include penetrations for pipe, thermowells, etc. In particular, the present invention relates to an improved containment canister that eliminates the need for costly containment huts and additional man power while at the same time reducing the risk of radiation exposure or other biohazard exposure to workers during glovebox modifications. The present invention also provides an improved hole saw which enables a driller to remove metal shavings and replace the hole saw if there is tooth wear present on the hole saw prior to actually penetrating a glovebox during modifications.
Date:
September 30, 2001
Creator:
Dozier, Stanley B.
System:
The UNT Digital Library
New silicotitanate molecular sieve and condensed phases
This patent application relates to an invention for a new silicotitanate molecular sieve ion exchange material for the capture and immobilization of divalent cations from aqueous and/or hydrocarbon solutions, including elements such as radioactive strontium or industrial RCRA metal cations. The invention also relates to the ability to either recycle the captured metal for future use or to encapsulate the cation through thermal treatment of the molecular sieve to a condensed phase.
Date:
November 1, 2000
Creator:
Nenoff, Tina M. & Nyman, May D.
System:
The UNT Digital Library
Speech recovery device
There is provided an apparatus and method for assisting speech recovery in people with inability to speak due to aphasia, apraxia or another condition with similar effect. A hollow, rigid, thin-walled tube with semi-circular or semi-elliptical cut out shapes at each open end is positioned such that one end mates with the throat/voice box area of the neck of the assistor and the other end mates with the throat/voice box area of the assisted. The speaking person (assistor) makes sounds that produce standing wave vibrations at the same frequency in the vocal cords of the assisted person. Driving the assisted person's vocal cords with the assisted person being able to hear the correct tone enables the assisted person to speak by simply amplifying the vibration of membranes in their throat.
Date:
October 19, 2000
Creator:
Frankle, Christen M.
System:
The UNT Digital Library
Modified cellulose synthase gene from 'Arabidopsis thaliana' confers herbicide resistance to plants
Cellulose synthase ('CS'), a key enzyme in the biosynthesis of cellulose in plants is inhibited by herbicides comprising thiazolidinones such as 5-tert-butyl-carbamoyloxy-3-(3-trifluromethyl) phenyl-4-thiazolidinone (TZ), isoxaben and 2,6-dichlorobenzonitrile (DCB). Two mutant genes encoding isoxaben and TZ-resistant cellulose synthase have been isolated from isoxaben and TZ-resistant Arabidopsis thaliana mutants. When compared with the gene coding for isoxaben or TZ-sensitive cellulose synthase, one of the resistant CS genes contains a point mutation, wherein glycine residue 998 is replaced by an aspartic acid. The other resistant mutation is due to a threonine to isoleucine change at amino acid residue 942. The mutant CS gene can be used to impart herbicide resistance to a plant; thereby permitting the utilization of the herbicide as a single application at a concentration which ensures the complete or substantially complete killing of weeds, while leaving the transgenic crop plant essentially undamaged.
Date:
October 11, 2000
Creator:
Somerville, Chris R. & Scieble, Wolf
System:
The UNT Digital Library
Method and apparatus for aligning a solar concentrator using two lasers
A method and apparatus are provided for aligning the facets of a solar concentrator. A first laser directs a first laser beam onto a selected facet of the concentrator such that a target board positioned adjacent to the first laser at approximately one focal length behind the focal point of the concentrator is illuminated by the beam after reflection thereof off of the selected facet. A second laser, located adjacent to the vertex of the optical axis of the concentrator, is used to direct a second laser beam onto the target board at a target point thereon. By adjusting the selected facet to cause the first beam to illuminate the target point on the target board produced by the second beam, the selected facet can be brought into alignment with the target point. These steps are repeated for other selected facets of the concentrator, as necessary, to provide overall alignment of the concentrator.
Date:
October 5, 2000
Creator:
Diver, Richard Boyer Jr.
System:
The UNT Digital Library
Adjustable cutting tool holder
This patent application describes a device for varying the geometry of a cutting tool for use in machining operations.
Date:
September 21, 2000
Creator:
Steinhour, William Lee III; West, Drew; Honeycutt, Steve; Frank, Steven & Krishnamurthy, Kallutla
System:
The UNT Digital Library