47 Matching Results

Explore Results

Results: 1 - 24 next
open access

A method and system including a double rotary kiln pyrolysis or gasification of waste material

Description: A method is described for destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 50… more
Date: December 31, 1995
Creator: McIntosh, M.J. & Arzoumanidis, G.G.
Partner: UNT Libraries Government Documents Department
open access

Fast superconducting magnetic field switch

Description: The superconducting magnetic switch or fast kicker magnet is employed with an electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced b… more
Date: December 31, 1995
Creator: Goren, Y. & Mahale, N.K.
Partner: UNT Libraries Government Documents Department
open access

Leak test adapter for containers

Description: An adapter is provided for facilitating the charging of containers and leak testing penetration areas. The adapter comprises an adapter body and stem which are secured to the container`s penetration areas. The container is then pressurized with a tracer gas. Manipulating the adapter stem installs a penetration plug allowing the adapter to be removed and the penetration to be leak tested with a mass spectrometer. Additionally, a method is provided for using the adapter. The present invention rel… more
Date: December 31, 1995
Creator: Hallett, B.H. & Hartley, M.S.
Partner: UNT Libraries Government Documents Department
open access

In-situ emplacement and densification of geomaterials for sealing applications

Description: A method and apparatus are described for forming improved seals in boreholes formed in host rock by using the apparatus to introduce a feedstock into the borehole and simultaneously subject the introduced feedstock to both compressive and shear stresses until the borehole becomes filled and sealed. These seals are primarily intended to restrict the movement of radioactive or hazardous materials into the accessible environment.
Date: December 31, 1995
Creator: Finley, Ray E. & Zeuch, David H.
Partner: UNT Libraries Government Documents Department
open access

Compound semiconductor field-effect transistors with improved dc and high frequency performance

Description: A method for making compound semiconductor devices including the use of a p-type dopant is disclosed wherein the dopant is co-implanted with an n-type donor species at the time the n-channel is deposited. Also disclosed are devices manufactured using the method. In the preferred embodiment n-MESFETs and other similar field effect transistor devices are manufactured using C ions implanted with Si atoms in GaAs to form an n-channel. C exhibits a unique characteristic in the context of the inventi… more
Date: December 31, 1995
Creator: Zolper, J. C.; Sherwin, M. E. & Baca, A. G.
Partner: UNT Libraries Government Documents Department
open access

Method for welding beryllium

Description: A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces… more
Date: December 31, 1995
Creator: Dixon, Raymond D.; Smith, Frank M. & O`Leary, Richard F.
Partner: UNT Libraries Government Documents Department
open access

Fiber optic assembly and method of making same

Description: There is provided an assembly having a light guiding medium sealed to a holder. Preferably the holder is a metal shell and a light guiding medium is an optical fiber of glass or sapphire whisker. The assembly includes a sealing medium which sealingly engages the metal holder to the fiber. In the formation of the assembly, the seal is essentially hermetic having a capability of minimizing leakage having a helium leak rate of less than 1 {times} 10{sup {minus}8} cubic centimeters per second and h… more
Date: December 31, 1995
Creator: Kramer, Daniel P. & Beckman, Thomas M.
Partner: UNT Libraries Government Documents Department
open access

Use of serospecific biocarrier compositions for enhanced biodegradation and bioremediation of groundwater

Description: A composition and method for using the composition for degrading pollutants in-situ is presented. The composition comprises a biocarrier coated with an antigen-specific antibody that attracts and binds pollution-degrading antigens. The biocarrier, which is preferably in the form of glass microspheres, is coated with one or more strains of antibody. The antibody may be placed into the ground in or near the source of pollutants where it may attract antigens present and bind them, or the antibodie… more
Date: January 1, 1995
Creator: Fliermans, Carl B.
Partner: UNT Libraries Government Documents Department
open access

Reduced vibration motor winding arrangement

Description: The present invention relates generally to an electric motor winding and, more particularly, to a three phase motor armature winding arrangement designed to reduce motor vibration and improve efficiency. An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty e… more
Date: December 31, 1995
Creator: Slavik, C. J.; Rhudy, R. G. & Bushman, R. E.
Partner: UNT Libraries Government Documents Department
open access

Strain-optic voltage monitor

Description: A voltage monitor which uses the shift in absorption edge of crystalline material to measure strain resulting from electric field-induced deformation of piezoelectric or electrostrictive material, providing a simple and accurate means for measuring voltage applied either by direct contact with the crystalline material or by subjecting the material to an electric field.
Date: December 31, 1995
Creator: Weiss, Jonathan D.
Partner: UNT Libraries Government Documents Department
open access

Thermovoltaic in-situ mirror cell

Description: A photovoltaic cell used in a direct energy conversion generator for converting heat to electricity includes a reflective layer disposed within the cell between the active layers of the cell and the cell substrate. The reflective layer reflects photons of low energy back to a photon producing emitter for reabsorption by the emitter, or reflects photons with energy greater than the cell bandgap back to the cell active layers for conversion into electricity. The reflective layer can comprise a re… more
Date: December 31, 1995
Creator: Campbell, Brian C.
Partner: UNT Libraries Government Documents Department
open access

Purge water management system

Description: A purge water management system is described for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps ground… more
Date: January 1995
Creator: Cardoso-Neto, J. E. & Williams, D. W.
Partner: UNT Libraries Government Documents Department
open access

Process for treating effluent from a supercritical water oxidation reactor

Description: The present invention relates generally to a method for treating and recycling the effluent from a supercritical water oxidation reactor and more specifically to a method for treating and recycling the effluent by expanding the effluent without extensive cooling. Supercritical water oxidation is the oxidation of fuel, generally waste material, in a body of water under conditions above the thermodynamic critical point of water. The current state of the art in supercritical water oxidation plant … more
Date: December 31, 1995
Creator: Barnes, Charles M. & Shapiro, Carolyn
Partner: UNT Libraries Government Documents Department
open access

Self-calibrating multiplexer circuit

Description: A time domain multiplexer system with automatic determination of acceptable multiplexer output limits, error determination, or correction is comprised of a time domain multiplexer, a computer, a constant current source capable of at least three distinct current levels, and two series resistances employed for calibration and testing. A two point linear calibration curve defining acceptable multiplexer voltage limits may be defined by the computer by determining the voltage output of the multiple… more
Date: December 31, 1995
Creator: Wahl, C. P.
Partner: UNT Libraries Government Documents Department
open access

Deconnable self-reading pocket dosimeter containment with self-contained light

Description: A container for a self-reading pocket dosimeter includes a transparent tube for receiving the self-reading pocket dosimeter, a light source mounted at one end of the transparent tube, and an eyepiece mounted on an opposite end of the transparent tube for viewing a read-out of the self-reading pocket dosimeter. The container may further include an activation device for selectively supplying power to the light source. The container both protects the dosimeter from being contaminated and provides … more
Date: December 31, 1995
Creator: Stevens, R. L.; Arnold, G. N. & McBride, R. G.
Partner: UNT Libraries Government Documents Department
open access

Split ring containment attachment device

Description: A containment attachment device is described for operatively connecting a glovebag to plastic sheeting covering hazardous material. The device includes an inner split ring member connected on one end to a middle ring member wherein the free end of the split ring member is inserted through a slit in the plastic sheeting to captively engage a generally circular portion of the plastic sheeting. A collar portion having an outer ring portion is provided with fastening means for securing the device t… more
Date: December 31, 1995
Creator: Sammel, Alfred G.
Partner: UNT Libraries Government Documents Department
open access

Durable regenerable sorbent pellets for removal of hydrogen sulfide from coal gas

Description: Pellets for removing hydrogen sulfide from a coal gasification stream at an elevated temperature are presented in durable form, usable over repeated cycles of absorption and regeneration. The pellets include a material reactive with hydrogen sulfide, in particular zinc oxide, a binder, and an inert material, in particular calcium sulfate (Drierite), having a particle size substantially larger than other components of the pellets. A second inert material and a promoter may also be included. Prep… more
Date: December 31, 1995
Creator: Siriwardane, R.V.
Partner: UNT Libraries Government Documents Department
open access

Method of preparing sodalite from chloride salt occluded zeolite A

Description: A method is described for immobilizing waste chloride salts containing radionuclides and hazardous nuclear material for permanent disposal starting with a substantially dry zeolite and sufficient glass to form leach resistance sodalite with occluded radionuclides and hazardous nuclear material. The zeolite and glass are heated to a temperature up to about 1,000 K to convert the zeolite to sodalite and thereafter maintained at a pressure and temperature sufficient to form a sodalite product near… more
Date: December 31, 1995
Creator: Lewis, M. A. & Pereira, C.
Partner: UNT Libraries Government Documents Department
open access

Radiography apparatus using gamma rays emitted by water activated by fusion neutrons

Description: Radiography apparatus includes an arrangement for circulating pure water continuously between a location adjacent a source of energetic neutrons, such as a tritium target irradiated by a deuteron beam, and a remote location where radiographic analysis is conducted. Oxygen in the pure water is activated via the {sup 16}O(n,p) {sup 16}N reaction using 14-MeV neutrons produced at the neutron source via the {sup 3}H(d,n) {sup 4}He reaction. Essentially monoenergetic gamma rays at 6.129 (predominant… more
Date: December 31, 1995
Creator: Smith, D. L.; Ikeda, Yujiro & Uno, Yoshitomo
Partner: UNT Libraries Government Documents Department
open access

Installation and assembly device and method of using

Description: The present invention relates to an installation and assembly device and method for facilitating the fitup of mating components during blind or remote installation and assembly, especially where close fitup tolerances are involved. The present invention is particularly useful for the purpose of facilitating vertical and/or radial relative positioning of a pump impeller within a mating inlet nozzle during a blind assembly wherein actual fitup cannot be observed during installation. The informati… more
Date: December 31, 1995
Creator: Kolsun, G.J.
Partner: UNT Libraries Government Documents Department
open access

Dual-keel electrodynamic maglev system

Description: A propulsion and stabilization system with a plurality of superconducting magnetic devices affixed to the dual-keels of a vehicle, where the superconducting magnetic devices produce a magnetic field when energized. The system also includes a plurality of figure-eight shaped null-flux coils affixed to opposing vertical sides of slots in a guideway. The figure-eight shaped null-flux coils are vertically oriented, laterally cross-connected in parallel, longitudinally connected in series, and conti… more
Date: December 31, 1995
Creator: He, J.; Wang, Z.; Rote, D. M.; Coffey, H. T.; Hull, J. R.; Mulcahy, T. M. et al.
Partner: UNT Libraries Government Documents Department
open access

Electrorefining cell with parallel electrode/concentric cylinder cathode

Description: A cathode-anode arrangement for use in an electrolytic cell is adapted for electrochemically refining spent nuclear fuel from a nuclear reactor and recovering purified uranium and a mixture of uranium and plutonium for use as a fresh blanket and core fuel in a nuclear reactor. The arrangement includes a plurality of inner anodic dissolution baskets that are each attached to a respective support rod, are submerged in a molten lithium halide salt, and are rotationally displaced. An inner hollow c… more
Date: December 31, 1995
Creator: Gay, E. C.; Miller, W. E. & Laidler, J. J.
Partner: UNT Libraries Government Documents Department
open access

Starting apparatus for internal combustion engines

Description: This report is a patent description for a system to start an internal combustion engine. Remote starting and starting by hearing impaired persons are addressed. The system monitors the amount of current being drawn by the starter motor to determine when the engine is started. When the engine is started the system automatically deactivates the starter motor. Five figures are included.
Date: January 1, 1995
Creator: Dyches, Gregory M. & Dudar, Aed M.
Partner: UNT Libraries Government Documents Department
open access

A flow injection trace gas analyzer for on-site determination of organoarsenicals

Description: Lewisite was developed during World War I as a chemical warfare agent. Several countries produced large quantities of the agent before, during and after World War II. The Chemical Weapons Convention treaty, recently signed, requires the destruction of Lewisite. In implementing the Chemical Weapons Convention treaty, it will be necessary to monitor the facilities at which various chemical agents including Lewisite may be stored for compliance with the agreement. The inspection procedures must me… more
Date: December 31, 1995
Creator: Aldstadt, J.H. III
Partner: UNT Libraries Government Documents Department
Back to Top of Screen