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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

Electrical safety device

Description: This invention consists of an electrical safety device for use in power tools that is designed to automatically discontinue operation of the power tool upon physical contact of the tool with a concealed conductive material. A step down transformer is used to supply the operating power for a disconnect relay and reset delay. When physical contact is made between the power tool and the conductive material, an electrical circuit through the disconnect relay is completed and the operation of the po… more
Date: September 6, 1990
Creator: White, D. B.
Partner: UNT Libraries Government Documents Department
open access

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
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Process to Accomplish Autothermal or Steam Reforming Via a Reciprocating Compression Device

Description: 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
Partner: UNT Libraries Government Documents Department
open access

Beam position monitor

Description: An apparatus for determining the position of an x-ray beam relative to a desired beam axis where the apparatus is positioned along the beam path so that a thin metal foil target intersects the x-ray beam generating fluorescent radiation. A PIN diode array is positioned so that a portion of the fluorescent radiation is intercepted by the array resulting in a series of electrical signals from the PIN diodes making up the array. The signals are then analyzed and the position of the x-ray beam is d… more
Date: September 21, 2000
Creator: Alkire, Randy W.; Rosenbaum, Gerold & Evans, Gwyndaf
Partner: UNT Libraries Government Documents Department
open access

Improved method for removing metal vapor from gas streams

Description: This invention relates to a process for gas cleanup to remove one or more metallic contaminants present as vapor. More particularly, the invention relates to a gas cleanup process using mass transfer to control the saturation levels such that essentially no particulates are formed, and the vapor condenses on the gas passage surfaces. It addresses the need to cleanup an inert gas contaminated with cadmium which may escape from the electrochemical processing of Integral Fast Reactor (IFR) fuel in… more
Date: September 19, 1994
Creator: Ahluwalia, R. K. & Im, K. H.
Partner: UNT Libraries Government Documents Department
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Piping inspection instrument carriage

Description: This invention is comprised of a pipe inspection instrument carriage for use with a pipe crawler or other locomotion means for performing internal inspections of piping surfaces. The carriage has a front leg assembly, a rear leg assembly and a central support connecting the two assemblies and for mounting an instrument arm having inspection instruments. The instrument arm has means mounted distally thereon for axially aligning the inspection instrumentation and means for extending the inspectio… more
Date: September 20, 1993
Creator: Zollinger, W.T. & Treanor, R.C.
Partner: UNT Libraries Government Documents Department
open access

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
open access

Pipe crawler with stabilizing midsection

Description: This invention is comprised of a pipe crawler having a midsection that provides the stability and flexibility to allow the pipe crawler to negotiate curved and uneven segments of piping while traveling through piping systems. The pipe crawler comprises a front leg assembly, a rear leg assembly, a midsection with a gimbal at each end for connecting the midsection to the front and rear leg assemblies in a flexible manner, and an air cylinder for changing the distance between the front and rear le… more
Date: September 20, 1993
Creator: Zollinger, W.T. & Treanor, R.C.
Partner: UNT Libraries Government Documents Department
open access

Low Temperature Sorbents for removal of Sulfur Compounds from fluid feed Streams

Description: 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: September 30, 1999
Creator: Siriwardane, Ranjan
Partner: UNT Libraries Government Documents Department
open access

In-situ method to remove iron and other metals from Solution in Groundwater down Gradient from Permeable Reactive Barrier

Description: This invention is directed to a process for treating the flow of anaerobic groundwater through an aquifer with a primary treatment media, preferably iron, and then passing the treated groundwater through a second porous media though which an oxygenated gas is passed in order to oxygenate the dissolved primary treatment material and convert it into an insoluble material thereby removing the dissolved primary treatment material from the groundwater.
Date: September 22, 1999
Creator: Carpenter, Clay E. & Morrison, Stanley J.
Partner: UNT Libraries Government Documents Department
open access

Method and System to Directly Produce Electrical Power within the Lithium Blanket Region of a Magnetically Confined, Deuterium-Tritium (DT) Fueled, Thermonuclear Fusion Reactor

Description: A method for integrating liquid metal magnetohydrodynamic power generation with fusion blanket technology to produce electrical power from a thermonuclear fusion reactor located within a confining magnetic field and within a toroidal structure. A hot liquid metal flows from a liquid metal blanket region into a pump duct of an electromagnetic pump which moves the liquid metal to a mixer where a gas of predetermined pressure is mixed with the pressurized liquid metal to form a Froth mixture. Elec… more
Date: September 22, 1998
Creator: Woolley, Robert D.
Partner: UNT Libraries Government Documents Department
open access

Cryogenic Homogenization and Sampling of Heterogeneous Multi-Phase Feedstock

Description: An apparatus and process for producing a homogeneous analytical sample from a heterogeneous feedstock by: providing the mixed feedstock, reducing the temperature of the feedstock to a temperature below a critical temperature, reducing the size of the feedstock components, blending the reduced size feedstock to form a homogeneous mixture; and obtaining a representative sample of the homogeneous mixture. The size reduction and blending steps are performed at temperatures below the critical temper… more
Date: September 21, 1999
Creator: Doyle, Glenn M.; Ideker, Virgene D. & Siegwarth, James D.
Partner: UNT Libraries Government Documents Department
open access

Containment canister for capturing hazardous waste debris during piping modifications

Description: 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 whi… more
Date: September 30, 2001
Creator: Dozier, Stanley B.
Partner: UNT Libraries Government Documents Department
open access

A Raman Fiber Optic Probe Assembly for use in Hostile Environments

Description: This invention provides a device for Raman spectroscopic measurement of composition and concentrations in a hostile environment by the use of a first fiber optic as a means of directing high intensity monochromatic light from a laser to the hostile environment and a second fiber optic to receive the lower intensity scattered light for transmittal to a monochromator for analysis. To avoid damage to the fiber optics, they are protected from the hostile environment. A preferred embodiment of the R… more
Date: September 21, 1998
Creator: Schmucker, John E.; Falk, Jon C.; Archer, William B. & Blasi, Raymond J.
Partner: UNT Libraries Government Documents Department
open access

Aerogel Fingerprint Media

Description: A fingerprint medium which is made of an aerogel having a predetermined density. The fingerprint medium may have a midrange density for forming plates or may be crushed forming a powder. The fingerprint medium may further include at least one of a metal and metal oxide to enhance characteristics desirable in a fingerprint medium.
Date: September 21, 1999
Creator: Miller, Fred S. & Andresen, Brian D.
Partner: UNT Libraries Government Documents Department
open access

A method to remove Ammonia using a Proton-Conducting Ceramic Membrane

Description: An apparatus and method for decomposing NH{sub 3}. A fluid containing NH{sub 3} is passed in contact with a tubular membrane that is a homogeneous mixture of a ceramic and a first metal, with the ceramic being selected from one or more of a cerate having the formula of M' Ce{sub 1-x} M''O{sub 3-{delta}}, zirconates having the formula M'Zr{sub 1-x} M''3-{delta}, stannates having the formula M'Sn{sub 1-x}M''O{sub 3}-{delta}, where M' is a group IIA metal, M'' is a dopant metal of one or more of C… more
Date: September 22, 1999
Creator: Balachandran, Uthamalingam & Bose, Arun C.
Partner: UNT Libraries Government Documents Department
open access

Adjustable cutting tool holder

Description: 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
Partner: UNT Libraries Government Documents Department
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Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles

Description: A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. T… more
Date: September 8, 1993
Creator: Carpenter, D.A.
Partner: UNT Libraries Government Documents Department
open access

Simulation of pyroshock environments using a tunable resonant fixture

Description: Disclosed are a method and apparatus for simulating pyrotechnic shock for the purpose of qualifying electronic components for use in weapons, satellite, and aerospace applications. According to the invention, a single resonant bar fixture has an adjustable resonant frequency in order to exhibit a desired shock response spectrum upon mechanical impact. The invention eliminates the need for availability of a large number of different fixtures, capable of exhibiting a range of shock response chara… more
Date: September 30, 1993
Creator: Davie, N. T.
Partner: UNT Libraries Government Documents Department
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