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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
Narrow groove welding gas diffuser assembly and welding torch
A diffuser assembly is provided for narrow groove welding using an automatic gas tungsten arc welding torch. The diffuser assembly includes manifold adapted for adjustable mounting on the welding torch which is received in a central opening in the manifold. Laterally extending manifold sections communicate with a shield gas inlet such that shield gas supplied to the inlet passes to gas passages of the manifold sections. First and second tapered diffusers are respectively connected to the manifold sections in fluid communication with the gas passages thereof. The diffusers extend downwardly along the torch electrode on opposite sides thereof so as to release shield gas along the length of the electrode and at the distal tip of the electrode. The diffusers are of a transverse width which is on the order of the thickness of the electrode so that the diffusers can, in use, be inserted into a narrow welding groove before and after the electrode in the direction of the weld operation.
Date:
February 4, 2000
Creator:
Rooney, Stephen J.
System:
The UNT Digital Library
Statistically Qualified Neuro-Analytic system and Method for Process Monitoring
An apparatus and method for monitoring a process involves development and application of a statistically qualified neuro-analytic (SQNA) model to accurately and reliably identify process change. The development of the SQNA model is accomplished in two steps: deterministic model adaption and stochastic model adaptation. Deterministic model adaption involves formulating an analytic model of the process representing known process characteristics,augmenting the analytic model with a neural network that captures unknown process characteristics, and training the resulting neuro-analytic model by adjusting the neural network weights according to a unique scaled equation emor minimization technique. Stochastic model adaptation involves qualifying any remaining uncertainty in the trained neuro-analytic model by formulating a likelihood function, given an error propagation equation, for computing the probability that the neuro-analytic model generates measured process output. Preferably, the developed SQNA model is validated using known sequential probability ratio tests and applied to the process as an on-line monitoring system.
Date:
November 4, 1998
Creator:
Vilim, Richard B.; Garcia, Humberto E. & Chen, Frederick W.
System:
The UNT Digital Library
Chemotactic selection of pollutant degrading soil bacteria
A method is described for identifying soil microbial strains which may be bacterial degraders of pollutants. This method includes: Placing a concentration of a pollutant in a substantially closed container; placing the container in a sample of soil for a period of time ranging from one minute to several hours; retrieving the container and collecting its contents; microscopically determining the identity of the bacteria present. Different concentrations of the pollutant can be used to determine which bacteria respond to each concentration. The method can be used for characterizing a polluted site or for looking for naturally occurring biological degraders of the pollutant. Then bacteria identified as degraders of the pollutant and as chemotactically attracted to the pollutant are used to innoculate contaminated soil. To enhance the effect of the bacteria on the pollutant, nutrients are cyclicly provided to the bacteria then withheld to alternately build up the size of the bacterial colony or community and then allow it to degrade the pollutant.
Date:
March 4, 1991
Creator:
Hazen, T. C.
System:
The UNT Digital Library
Optical transcutaneous bilirubin detector
This invention consists of a transcutaneous bilirubin detector comprising a source of light having spectral components absorbable and not absorbable by bilirubin, a handle assembly, electronic circuitry and a fiber optic bundle connecting the assembly to the light source and circuitry. Inside the assembly is a prism that receives the light from one end of the fiber optic bundle and directs it onto the skin and directs the reflected light back into the bundle. The other end of the bundle is trifucated, with one end going to the light source and the other two ends going to circuitry that determines how much light of each kind has been reflected. A relatively greater amount absorbed by the skin from the portion of the spectrum absorbable by bilirubin may indicate the presence of the illness. Preferably, two measurements are made, one on the kneecap and one on the forehead, and compared to determine the presence of bilirubin. To reduce the impact of light absorption by hemoglobin in the blood carried by the skin, pressure is applied with a plunger and spring in the handle assembly, the pressure limited by points of a button slidably carried in the assembly that are perceived by …
Date:
March 4, 1991
Creator:
Kronberg, J. W.
System:
The UNT Digital Library
Self-actuating reactor-shutdown system. [LMFBR]
A control system for the automatic or self-actuated shutdown or scram of a nuclear reactor is described. The system is capable of initiating scram insertion by a signal from the plant protection system or by independent action directly sensing reactor conditions of low-flow or over-power. Self-actuation due to a loss of reactor coolant flow results from a decrease of pressure differential between the upper and lower ends of an absorber element. When the force due to this differential falls below the weight of the element, the element will fall by gravitational force to scram the reactor. Self-actuation due to high neutron flux is accomplished via a valve controlled by an electromagnet and a thermionic diode. In a reactor over-power, the diode will be heated to a change of state causing the electromagnet to be shorted thereby actuating the valve which provides the changed flow and pressure conditions required for scramming the absorber element.
Date:
June 4, 1981
Creator:
Barrus, D.M.; Brummond, W.A. & Peterson, L.F.
System:
The UNT Digital Library
Thermionic switched self-actuating reactor shutdown system
A self-actuating reactor shutdown system is described which has a thermionic switched electromagnetic latch arrangement which is responsive to reactor neutron flux changes and to reactor coolant temperature changes. The system is self-actuating in that the sensing thermionic device acts directly to release (scram) the control rod (absorber) without reference or signal from the main reactor plant protective and control systems. To be responsive to both temperature and neutron flux effects, two detectors are used, one responsive to reactor coolant temperatures, and the other responsive to reactor neutron flux increase. The detectors are incorporated into a thermionic diode connected electrically with an electromagnetic mechanism which under normal reactor operating conditions holds the control rod in its ready position (exterior of the reactor core).
Date:
June 4, 1981
Creator:
Barrus, Donald M.; Shires, Charles D. & Brummond, William A.
System:
The UNT Digital Library
Calipers.
Patent for calipers that make it easier to read measurements, by having a strip of measuring tape at the ends that allows users to determine the distance between the arms easier. The measuring tape component is also retractable.
Date:
April 4, 1922
Creator:
Miller, William James
System:
The Portal to Texas History
Ointment.
Patent for a general external application ointment made of chloride of zinc, powdered metallic cobalt, blood root, and glycerine.
Date:
April 4, 1922
Creator:
Mullins, Ervin L. & Collier, William R.
System:
The Portal to Texas History
Universal Household Grater.
Patent for a new universal grater which eliminates the risk of injury the user may gain from grating materials.
Date:
April 4, 1922
Creator:
Lambdin, William McKendree
System:
The Portal to Texas History
Arrangement and Construction of Self-Service-Store Fixtures
Patent for new and useful improvements in arrangement and construction of self-service-store fixtures. This invention provides an arrangement of shelving in sections with other parts of store furnture, the shelving being so arranged and constructed that all available space is economically utilized and at the same time permits the goods displayed on the shelves to be visible from a designated point in the store to avoid surreptitious removal of any goods while providing ample room for customers in their entrance, purchasing, and exit to and from the store.
Date:
October 4, 1921
Creator:
Hill, Leslie A.
System:
The Portal to Texas History
Fishing-Tool.
Patent for improvements on the Fishing-Tool, including illustrations. The tool was improved in order to make the boring of wells using pipes more efficient.
Date:
October 4, 1921
Creator:
McMillian, John F.
System:
The Portal to Texas History
Identifying-Tag.
Patent for identification tags made of sheet metal, to be used with binding bands on cotton bales. Tags are economical to make, create little waste, and lay flat so they are not easily torn off.
Date:
October 4, 1921
Creator:
Blackburn, Edward Stuart
System:
The Portal to Texas History
Lock.
Patent for lock that is stronger when locked due to its unique structure and requires special knowledge to use, making it more secure against intruders.
Date:
October 4, 1921
Creator:
McGill, Wisdom
System:
The Portal to Texas History
Machine for Cutting Tire-Casing Treads and Removing Beads
Patent for machines for extracting beads and for cutting treads of tire casings. It is to provide a convenient device for operating on tire casings which are to be stripped and separated into the original elements and to save much labor and avoid much expense.
Date:
October 4, 1921
Creator:
Hibbs, Cassell D.
System:
The Portal to Texas History
Spring-Wheel.
Patent for improvements to vehicle spring wheels to replace pneumatic wheels, "embodying in its use relatively movable members having coil springs interposed therebetween whereby to secure the proper resilience" (lines 13-16) necessitating very few parts, including illustrations.
Date:
October 4, 1921
Creator:
Bush, Horace L. & Bryan, Andrew J.
System:
The Portal to Texas History
Wheel and Shaft
Patent for a wheel and shaft designed for use in drilling oil and gas wells.
Date:
October 4, 1921
Creator:
Hudson, James Condron
System:
The Portal to Texas History
Abrading Element For Tire-Patch Containers
Patent for an improved tool that is affixed to tire-patch containers. It is used for abrading the surface of a tire to effectively roughen it (without the use of sandpaper) to allow the adhesion of a patch. Includes illustrations.
Date:
January 4, 1921
Creator:
Duffy, Jesse A.
System:
The Portal to Texas History
Automobile.
Patent for an automobile with a mechanism which may be extended to form a tent bed, or folded into a small compass. The folding bed of the automobile may be utilized to storm camp equipment when not used as a bed.
Date:
January 4, 1921
Creator:
Mackey, Franklin Orville
System:
The Portal to Texas History
Blow-Out Boot
Patent for a blow-out boot which would prevent the usual particulate from being able to enter the inner tire after a blow-out.
Date:
January 4, 1921
Creator:
Barnes, John A.
System:
The Portal to Texas History
Blow-Out Shoe.
Patent for a new blow-out shoe for pneumatic tires which uses a pliable fastening instead of metallic connections or laces.
Date:
January 4, 1921
Creator:
Moore, Lee, R.
System:
The Portal to Texas History
Boring-Tool.
Patent for "a boring tool for boring scarred and worn engine cylinders" (lines 14-15) that allows for more customization when cutting.
Date:
January 4, 1921
Creator:
Adams, George Reese.
System:
The Portal to Texas History
Funnel
Patent for new and useful improvements in Funnels. Patent is for the provision of a funnel having a valve controlled outlet.
Date:
January 4, 1921
Creator:
Hodges, Eddie C.
System:
The Portal to Texas History
Marine Vessels
Patent for new and useful Improvements in Marine Vessels. Relates to marine vessels used for towing timber.
Date:
January 4, 1921
Creator:
Collier, Hugh R.
System:
The Portal to Texas History