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Method and Apparatus for separation of heavy and tritiated water

Description: An object of the present invention is to provide a method for separating and recovering hydrogen isotopes that avoids the disadvantages of the prior art, is more simple, and allows for continuous hydrogen isotope separation and recovery. The disclosed invention does not require the use of isotope exchange reaction catalysts and/or hydrogen sulfide gas. The present invention achieves the advantages of the thermal diffusion and the chemical exchange processes. The disclosed invention provides a m… more
Date: February 28, 2000
Creator: Lee, Myung, W.
Partner: UNT Libraries Government Documents Department
open access

Method of glass melter electrode length measurement using time domain reflectometry (TDR)

Description: The present invention overcomes the drawbacks inherent in the prior art and solves the problems inherent in conventional Joule-heated vitrification melters, where the melter preferably comprises a vessel having a refractory liner and an opening for receiving material which is converted into molten vitreous material in the vessel. The vessel has an outlet port for removing molten vitreous material from the vessel. A plurality of electrodes is disposed in the vessel and electrical energy is passe… more
Date: February 28, 2000
Creator: Tarpley, James M. & Zamecnik, John R.
Partner: UNT Libraries Government Documents Department
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Polarization selecting Optical Element using a Porro Prism Incorporating a thin film Polarizer in a single element

Description: 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 o… more
Date: January 28, 2000
Creator: Hendrix, James lee
Partner: UNT Libraries Government Documents Department
open access

Simplified Configuration for the Combustor of an oil Burner using a low Pressure, high flow air-atomizing Nozzle

Description: The invention relates to clean burning of fuel oil with air. More specifically, to a fuel burning combustion head using a low-pressure, high air flow atomizing nozzle so that there will be a complete combustion oil resulting in a minimum emission of pollutants. The inventors have devised a fuel burner that uses a low pressure air atomizing nozzle. The improved fuel burner does not result in the use of additional compressors or the introduction of pressurized gases downstream, nor does it requir… more
Date: September 28, 1998
Creator: Butcher, Thomas; Celebi, Yusuf & Fisher, Leonard
Partner: UNT Libraries Government Documents Department
open access

In-Line Thermoelectric Module

Description: A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an-in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The… more
Date: July 28, 1998
Creator: Pento, Robert; Marks, James E. & Staffanson, Clifford D.
Partner: UNT Libraries Government Documents Department
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Remote Adjustable focus Raman Spectroscopy Probe

Description: A remote adjustable focus Raman spectroscopy probe allows for analyzing Raman scattered light from a point of interest external to the probe. An environmental barrier including at least one window separates the probe from the point of interest. An optical tube is disposed adjacent to the environmental barrier and includes along working length compound lens objective next to the window. A beam splitter and a mirror are at the other end. A mechanical means is used to translate the probe body in t… more
Date: July 28, 1998
Creator: Schmucker, John E.; Blasi, Raymond J. & Archer, William B.
Partner: UNT Libraries Government Documents Department
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Apparatus and method for two-stage oxidation of wastes

Description: An apparatus and method for oxidizing wastes in a two-stage process. The apparatus includes an oxidation device, a gas-liquid contacting column and an electrocell. In the first stage of the process, wastes are heated in the presence of air to partially oxidize the wastes. The heated wastes produce an off-gas stream containing oxidizable materials. In the second stage, the off-gas stream is cooled and flowed through the contacting column, where the off-gas stream is contacted with an aqueous aci… more
Date: September 28, 1993
Creator: Fleischman, S. D.
Partner: UNT Libraries Government Documents Department
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Calcination and solid state reaction of ceramic-forming components to provide single-phase ceramic product having fine particle size

Description: The invention consists of an improved method for the preparation of single phase, fine grained ceramic materials from precursor powder mixtures where at least one of the components of the mixture is an alkali earth carbonate. The process consists of heating the precursor powders in a partial vacuum under flowing oxygen and under conditions where the partial pressure of CO{sub 2} evolved during the calcination is kept to a very low level relative to the oxygen. The process has been found particu… more
Date: September 28, 1990
Creator: Balachandran, U.; Poeppel, R. B.; Emerson, J. E. & Johnson, S. A.
Partner: UNT Libraries Government Documents Department
open access

High current pulse transmission cable

Description: This invention is comprised of a transmission cable for carrying high current pulses in which an even numbered plurality of electrical conductors surrounds a central ground conductor. Each electrical conductor is connected so that it at any instant in time it will carry current of opposite polarity to the polarity carried by adjacent conductors. This arrangement cancels practically all of the external fields generated by current in the conductors.
Date: September 28, 1990
Creator: Parsons, W. M.
Partner: UNT Libraries Government Documents Department
open access

Cathode-preparation method for molten-carbonate fuel cell

Description: A method of preparing a porous cathode structure for use in a molten carbonate fuel cell begins by providing a porous integral plaque of sintered nickel oxide particles. The nickel oxide plaque can be obtained by oxidizing a sintered plaque of nickel metal or by compacting and sintering finely divided nickel oxide particles to the desired pore structure. The porous sintered nickel oxide plaque is contacted with a lithium salt for a sufficient time to lithiate the nickel oxide structure and thus… more
Date: January 28, 1982
Creator: Smith, James L.; Sim, James W. & Kucera, Eugenia H.
Partner: UNT Libraries Government Documents Department
open access

Continuous production of ethanol by use of flocculent Zymomonas mobilis

Description: Improved means and process for producing ethanol by fermentation are provided. Another object of the invention is to produce ethanol in a continuous-flow process by means of a biological catalyst that can be retained in a continuous-flow reactor vessel without being bonded to or held within a support material. An additional object of the invention is to provide a fermentation reactor vessel wherein disturbance of the desirable plug flow of sugar solution is minimized. These objects are attained… more
Date: January 28, 1982
Creator: Arcuri, E. J. & Donaldson, T. L.
Partner: UNT Libraries Government Documents Department
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Cutting assembly

Description: A cutting apparatus includes a support table mounted for movement toward and away from a workpiece and carrying a mirror which directs a cutting laser beam onto the workpiece. A carrier is rotatably and pivotally mounted on the support table between the mirror and workpiece and supports a conduit discharging gas toward the point of impingement of the laser beam on the workpiece. Means are provided for rotating the carrier relative to the support table to place the gas discharging conduit in the… more
Date: January 28, 1982
Creator: Packi, D. J.; Swenson, C. E.; Bencloski, W. A. & Wineman, A. L.
Partner: UNT Libraries Government Documents Department
open access

Cutting fluid for machining fissionable materials

Description: The present invention is directed to a cutting fluid for machining fissionable material. The cutting fluid is formed of glycol, water and a boron compound in an adequate concentration for effective neutron attenuation so as to inhibit criticality incidents during machining.
Date: January 28, 1982
Creator: Duerksen, W.K.; Googin, J.M. & Napier, B. Jr.
Partner: UNT Libraries Government Documents Department
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Photosensitivity enhancement of PLZT ceramics by positive-ion implantation

Description: The photosensitivity of lead lanthanum zirconate titanate (PLZT) ceramic material used in high resolution, high contrast, and nonvolatile photoferroelectric image storage and display devices is enhanced significantly by positive ion implantation of the PLZT near its surface. Implanted ions include H/sup +/, He/sup +/, Ne/sup +/, Ar/sup +/, as well as chemically reactive ions from Fe, Cr, and Al. The positive ion implantation advantageously serves to shift the absorption characteristics of the P… more
Date: January 28, 1982
Creator: Peercy, P.S. & Land, C.E.
Partner: UNT Libraries Government Documents Department
open access

Portable battery-free charger for radiation dosimeters

Description: This invention is a novel portable charger for dosimeters of the electrometer type. The charger does not require batteries or piezoelectric crystals and is of rugged construction. In a preferred embodiment, the charge includes a housing which carries means for mounting a dosimeter to be charged. The housing also includes contact means for impressing a charging voltage across the mounted dosimeter. Also, the housing carries a trigger for operating a charging system mounted in the housing. The ch… more
Date: January 28, 1982
Creator: Manning, F.W.
Partner: UNT Libraries Government Documents Department
open access

Process for photosynthetically splitting water

Description: In one form of the invention, hydrogen is produced by providing a reactor containing a body of water. The water contains photolytic material, i.e., photoactive material containing a hydrogen-catalyst. The interior of the reactor is isolated from atmosphere and includes a volume for receiving gases evolved from the body of water. The photolytic material is exposed to light to effect photosynthetic splitting of the water into gaseous hydrogen and oxygen. The gas-receiving volume is continuously e… more
Date: January 28, 1982
Creator: Greenbaum, E.
Partner: UNT Libraries Government Documents Department
open access

Slag capture and removal during laser cutting. [Patent application]

Description: Molten metal removed from a workpiece in a laser cutting operation is blown away from the cutting point by a gas jet and collected on an electromagnet. The laser cutting is used to separate the castings of spent fuel rods from the fuel-containing elements therein.
Date: January 28, 1982
Creator: Brown, C.O.
Partner: UNT Libraries Government Documents Department
open access

Spark-Gap Device for Precise Switching

Description: An improved spark gap apparatus is provided for precise switching of high currents from charged capacitors, and for protecting circuitry and circuit components, such as an energy storage capacitor, from overvoltage surges. The invention includes a pair of niobium electrodes with a melting point greater than 2000/sup 0/C that forms the spark gap. The electrodes are supported by conductive caps spaced apart from one another by an insulating member all of which form a hermetically sealed chamber f… more
Date: January 28, 1982
Creator: Boettcher, Gordon E.
Partner: UNT Libraries Government Documents Department
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Method and apparatus for producing cryogenic targets

Description: An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers.
Date: August 28, 1981
Creator: Murphy, James T. & Miller, John R.
Partner: UNT Libraries Government Documents Department
open access

Method of boronizing transition-metal surfaces

Description: A method is presented for preparing a boride layer on a transition metal substrate for use in corrosive environments or as a harden surface in machine applications. This method is particularly useful in treating current collectors for use within a high temperature and corrosive electrochemical cell environment. A melt of a alkali metal boride tetrafluoride salt including such as KF to lower its melting point is prepared including a dissolved boron containing material, for instance NiB, MnB/sub … more
Date: August 28, 1981
Creator: Koyama, K. & Shimotake, H.
Partner: UNT Libraries Government Documents Department
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Nuclear reactor control apparatus

Description: Nuclear reactor core safety rod release apparatus comprises a control rod having a detent notch in the form of an annular peripheral recess at its upper end, a control rod support tube for raising and lowering the control rod under normal conditions, latches pivotally mounted on the control support tube with free ends thereof normally disposed in the recess in the control rod, and cam means for pivoting the latches out of the recess in the control rod when a scram condition occurs. One embodime… more
Date: August 28, 1981
Creator: Sridhar, B.N.
Partner: UNT Libraries Government Documents Department
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Oil-shale-retorting and combustion system. [DOE patent application]

Description: The present invention is directed to the extraction of energy values from oil shale containing considerable concentrations of calcium carbonate in an efficient manner. The volatiles are separated from the oil shale in a retorting zone of a fluidized bed where the temperature and the concentration of oxygen are maintained at sufficiently low levels so that the volatiles are extracted from the oil shale with minimal combustion of the volatiles and with minimal calcination of the calcium carbonate… more
Date: August 28, 1981
Creator: Pitrolo, Augustine A.; Mei, Joseph S. & Shang, Jerry Y.
Partner: UNT Libraries Government Documents Department
open access

Bioluminescence monitor and method for enzymatic determinations. [Patents]

Description: An on-line, nonreferenced apparatus for measuring the concentration of a biomarker species in authentic biological samples in solution comprises conduit means for conducting said sample solution from a source of said solution, stream diversion means disposed within the conduit for diverting a predetermined amount of said sample for analysis, means for introducing and independently regulating the flow of one or more reactants disposed in fluid communication with said diverted stream, incubating … more
Date: April 28, 1981
Creator: Bostick, William D.; Denton, Mark S. & Dinsmore, Stanley R.
Partner: UNT Libraries Government Documents Department
open access

Solar Retorting of Oil Shale

Description: An apparatus and method are described for retorting oil shale using solar radiation. Oil shale is introduced into a first retorting chamber having a solar focus zone. There the oil shale is exposed to solar radiation and rapidly brought to a predetermined retorting temperature. Once the shale has reached this temperature, it is removed from the solar focus zone and transferred to a second retorting chamber. In the second chamber, the oil shale is maintained at the retorting temperature, without… more
Date: April 28, 1981
Creator: Gregg, David W.
Partner: UNT Libraries Government Documents Department
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