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Degree Department

62 Matching Results

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Cermets and method for making same (open access)

Cermets and method for making same

The present invention is directed to a method for making a wide variety of general-purpose cermets and for radioactive waste disposal from ceramic powders prepared from urea-dispersed solutions containing various metal values. The powders are formed into a compact and subjected to a rapid temperature increase in a reducing atmosphere. During this reduction, one or more of the more readily reducible oxides in the compact is reduced to a selected substoichiometric state at a temperature below the eutectic phase for that particular oxide or oxides and then raised to a temperature greater than the eutectic temperature to provide a liquid phase in the compact prior to the reduction of the liquid phase forming oxide to solid metal. This liquid phase forms at a temperature below the melting temperature of the metal and bonds together the remaining particulates in the cermet to form a solid polycrystalline cermet.
Date: April 1, 1981
Creator: Aaron, W. S.; Kinser, D. L. & Quinby, T. C.
System: The UNT Digital Library
Method and apparatus for recovering unstable cores (open access)

Method and apparatus for recovering unstable cores

A method and apparatus suitable for stabilizing hydrocarbon cores are given. Such stabilized cores have not previously been obtainable for laboratory study, and such study is believed to be required before the hydrate reserves can become a utilizable resource. The apparatus can be built using commercially available parts and is very simple and safe to operate.
Date: April 1, 1981
Creator: McGuire, P. L. & Barraclough, B. L.
System: The UNT Digital Library
Boll-Weevil or Other Insect Destroyer (open access)

Boll-Weevil or Other Insect Destroyer

Patent for
Date: April 1, 1902
Creator: John S. Doak & Alexander G. Farrington
System: The Portal to Texas History
DRAFT-EQUALIZER (open access)

DRAFT-EQUALIZER

Patent for a device to equalize the draft among 1-6 horses when attached to a plow.
Date: April 1, 1902
Creator: INGRAM, JOSEPH D.
System: The Portal to Texas History
Multiple sextupole system for the correction of third- and higher-order aberration (open access)

Multiple sextupole system for the correction of third- and higher-order aberration

A means is provided for compensating for third and higher order aberration in charged particle beam devices. The means includes two sextupoles with an intermediate focusing lens, all positioned between two focusing lenses.
Date: April 1, 1981
Creator: Crewe, A.V.
System: The UNT Digital Library
Cart-Saddle (open access)

Cart-Saddle

Patent for a more animal-friendly saddle to attach a horse to a cart by adjusting the way the girth is handled as the cart is loaded.
Date: April 1, 1879
Creator: Franks, Ely Anderson
System: The Portal to Texas History
Material containment enclosure (open access)

Material containment enclosure

An isolation enclosure and a group of isolation enclosures was designed which is useful when a relatively large containment area is required. The enclosure is in the form of a ring having a section removed so that a technician may enter the center area of the ring. in a preferred embodiment, an access zone is located in the transparent wall of the enclosure and extends around the inner perimeter of the ring so that a technician can insert his hands into the enclosure to reach any point within. The inventive enclosures provide more containment area per unit area of floor space than conventional material isolation enclosures.
Date: April 1, 1991
Creator: Carlson, D. O.
System: The UNT Digital Library
Carbureter (open access)

Carbureter

Patent for Carbureter and it uses.
Date: April 1, 1912
Creator: Carpenter, John C.
System: The Portal to Texas History
Air-Compressor. (open access)

Air-Compressor.

Patent for a more efficient air compressor with high and low pressure chambers formed of mating sections that can be detached to make repairs to the piston as necessary.
Date: April 1, 1913
Creator: Murphy, Edward
System: The Portal to Texas History
Cotton Seed Planter. (open access)

Cotton Seed Planter.

Patent for "a new and useful edge drop feeder or seeder". (line 14)
Date: April 1, 1913
Creator: C. W. Loe; Loe, C. W & Mitchell, T. L.; T. L. Mitchell
System: The Portal to Texas History
Acetylene-Gas Generator. (open access)

Acetylene-Gas Generator.

Patent for improving acetylene gas generators.
Date: April 1, 1919
Creator: Muse, James A.
System: The Portal to Texas History
Combined Seed Planter and Fertilizer Distributer (open access)

Combined Seed Planter and Fertilizer Distributer

Patent for device for planting, fertilizing, and cultivating seed and grain.
Date: April 1, 1884
Creator: Pickle, William Chesley
System: The Portal to Texas History
Graphene Formation on Dielectrics and Electronic Devices Formed Therefrom (open access)

Graphene Formation on Dielectrics and Electronic Devices Formed Therefrom

Patent relating to graphene formation on dielectrics and electronic devices formed therefrom.
Date: December 29, 2010
Creator: Kelber, Jeffry A.; Gaddam, Sneha Sen & Bjelkevig, Cameron L.
System: The UNT Digital Library
Laser barometer (open access)

Laser barometer

This paper describes an invention of a pressure measuring instrument which uses laser radiation to sense the pressure in an enclosed environment by means of measuring the change in refractive index of a gas - which is pressure dependent.
Date: April 1, 1998
Creator: Abercrombie, K.R.; Shiels, D. & Rash, T.
System: The UNT Digital Library
A method for treating electrolyte to remove Li{sub 2}O (open access)

A method for treating electrolyte to remove Li{sub 2}O

Electrorefining has been used in processes for recovering uranium and plutonium metals from spent nuclear fuel. The electrorefining is performed in an electrochemical cell in which the chopped fuel elements from the reactor forms the anode, the electrolyte, preferably, is the fused eutectic salt of the LiCl-KCl which contain UCl{sub 3} and PuCl{sub 3}. Purified metal collected at the cathode collects at the bottom of the cell. This invention provides a method for removing lithium oxide from the electrolyte salt, with the end formation of a solid lithium-aluminium alloy.
Date: April 1, 1998
Creator: Tomczuk, Z.; Miller, W. E.; Johnson, G. K. & Willit, J. L.
System: The UNT Digital Library
Autogenous electrolyte, non-pyrolytically produced solid capacitor structure (open access)

Autogenous electrolyte, non-pyrolytically produced solid capacitor structure

This report discusses the design of a solid electrolytic capacitor having a solid electrolyte comprised of manganese dioxide dispersed in an aromatic polyamide capable of to forming polyimide linkages. This solid electrolyte being disposed between a first electrode made of valve metal covered by an anodic oxide film and a second electrode opposite the first electrode. The electrolyte autogenously produces water, oxygen, and hydroxyl groups which act as healing substances and is not itself produced pyrolytically. Reduction of the manganese dioxide and the water molecules released by formation of imide linkages result in substantially improved self-healing of anodic dielectric layer defects.
Date: April 1, 1998
Creator: Sharp, D. J.; Armstrong, P. S. & Paintz, J. K. G.
System: The UNT Digital Library
Process for making silver metal filaments (open access)

Process for making silver metal filaments

This invention relates to a process for making filaments of metal compounds and more particularly to a process for making silver metal filaments. The United States Government has rights to this invention pursuant to Contract No. DE-AC05-8421400 with Lockheed Martin Energy Systems, Inc. awarded by the US Department of Energy.
Date: April 1, 1998
Creator: Bamberger, C.E.
System: The UNT Digital Library
Method for producing iron-based acid catalysts (open access)

Method for producing iron-based acid catalysts

A method for preparing an acid catalyst with a long shelf-life is described. Crystalline iron oxides are doped with lattice compatible metals which are heated with halogen compounds at elevated temperatures.
Date: April 1, 1998
Creator: Farcasiu, M.; Kathrein, H.; Kaufman, P. B. & Diehl, J. R.
System: The UNT Digital Library
A process for off-gas particulate removal (open access)

A process for off-gas particulate removal

This paper describes an off-gas system for the removal of radioactive particulates from a melter for the vitrification of radioactive wastes to form glass waste forms. A diagram is provided.
Date: April 1, 1998
Creator: Carl, D. E.
System: The UNT Digital Library
Continuous injection of an inert gas through a drill rig for drilling into potentially hazardous areas (open access)

Continuous injection of an inert gas through a drill rig for drilling into potentially hazardous areas

A drill rig for drilling in potentially hazardous areas includes a drill having conventional features such as a frame, a gear motor, gear box, and a drive. A hollow rotating shaft projects through the drive and frame. An auger, connected to the shaft is provided with a multiplicity of holes. An inert gas is supplied to the hollow shaft and directed from the rotating shaft to the holes in the auger. The inert gas flows down the hollow shaft, and then down the hollow auger, and out through the holes in the bottom of the auger into the potentially hazardous area.
Date: April 1, 1998
Creator: McCormick, S.H. & Pigott, W.R.
System: The UNT Digital Library
Separation of catalyst from Fischer-Tropsch slurry (open access)

Separation of catalyst from Fischer-Tropsch slurry

This paper describes a process for the separation of catalysts used in Fischer-Tropsch synthesis. The separation is accomplished by extraction in which the organic compounds in the wax are dissolved and carried away from the insoluble inorganic catalyst particles that are primarily inorganic. The purified catalyst can be upgraded by various methods.
Date: April 1, 1998
Creator: White, C.M.; Quiring, M.S.; Jensen, K.L.; Hickey, R.F. & Gillham, L.D.
System: The UNT Digital Library
Indirect-Fired Gas Turbine Dual Fuel Cell Power Cycle (open access)

Indirect-Fired Gas Turbine Dual Fuel Cell Power Cycle

The present invention relates generally to an integrated fuel cell power plant, and more specifically to a combination of cycles wherein a first fuel cell cycle tops an indirect-fired gas turbine cycle and a second fuel cell cycle bottoms the gas turbine cycle so that the cycles are thermally integrated in a tandem operating arrangement. The United States Government has rights in this invention pursuant to the employer-employee relationship between the United States Department of Energy and the inventors.
Date: April 1, 1998
Creator: Micheli, Paul L.; Williams, Mark C. & Sudhoff, Frederick A.
System: The UNT Digital Library
Wire-Stretcher. (open access)

Wire-Stretcher.

Patent for improvements in wire-stretchers by using a combination of winding-drum, a ratchet upon the drum and wire clutches for engagement with a wire to be stretched. Illustration is included.
Date: April 1, 1902
Creator: Walls, Joseph A. & Boyter, Robert L.
System: The Portal to Texas History
Windlass. (open access)

Windlass.

Patent for a new and improved windlass. This design consists in "[t]he combination of a frame having the cross-bars near its lower and upper ends, the windlass-shaft journaled in the side pieces of the frame and having the balance-wheels and the pinion, the operating-gears mounted in one side of the frame and one of said gears meshing with said pinion, an upright mounted upon the lower front cross-piece of the frame and having a guide-pulley at its upper end, arms extending laterally from said upright, and a guide-roller journaled in said arms" (lines 11-21).
Date: April 1, 1890
Creator: Bridges, Thomas H.
System: The Portal to Texas History