965 Matching Results

Search Results

prev Results: 97 - 120 next
open access

Clutch Driven Reaction Wheel Steering Unit

Description: Patent relating to a clutch driven reaction wheel steering unit.
Date: January 12, 2006
Creator: Smith, Monty J. & Maestas, Jeffrey E.
Partner: UNT College of Engineering
open access

Method for removal of mercury from various gas streams

Description: The invention provides for a method for removing elemental mercury from a fluid, the method comprising irradiating the mercury with light having a wavelength of approximately 254 nm. The method is implemented in situ at various fuel combustion locations such as power plants and municipal incinerators.
Date: June 10, 2003
Creator: Granite, E. J. & Pennline, H. W.
Partner: UNT Libraries Government Documents Department
open access

Method of making multilayered titanium ceramic composites

Description: A method making a titanium ceramic composite involves forming a hot pressed powder body having a microstructure comprising at least one titanium metal or alloy layer and at least one ceramic particulate reinforced titanium metal or alloy layer and hot forging the hot pressed body follwed by hot rolling to substantially reduce a thickness dimension and substantially increase a lateral dimension thereof to form a composite plate or sheet that retains in the microstructure at least one titanium ba… more
Date: August 25, 1998
Creator: Fisher, George T., II; Hansen; Jeffrey, S.; Oden; Laurance, L.; Turner et al.
Partner: UNT Libraries Government Documents Department
open access

Method for high temperature mercury capture from gas streams

Description: A process to facilitate mercury extraction from high temperature flue/fuel gas via the use of metal sorbents which capture mercury at ambient and high temperatures. The spent sorbents can be regenerated after exposure to mercury. The metal sorbents can be used as pure metals (or combinations of metals) or dispersed on an inert support to increase surface area per gram of metal sorbent. Iridium and ruthenium are effective for mercury removal from flue and smelter gases. Palladium and platinum ar… more
Date: April 25, 2006
Creator: Granite, E. J. & Pennline, H. W.
Partner: UNT Libraries Government Documents Department
open access

Pressure gradient passivation of carbonaceous material normally susceptible to spontaneous combustion

Description: This invention is a process for the passivation or deactivation with respect to oxygen of a carbonaceous material by the exposure of the carbonaceous material to an oxygenated gas in which the oxygenated gas pressure is increased from a first pressure to a second pressure and then the pressure is changed to a third pressure. Preferably a cyclic process which comprises exposing the carbonaceous material to the gas at low pressure and increasing the pressure to a second higher pressure and then r… more
Date: January 29, 2002
Creator: Ochs, Thomas L.; Sands, William D.; Schroeder, Karl; Summers, Cathy A. & Utz, Bruce R.
Partner: UNT Libraries Government Documents Department
open access

One-piece, composite crucible with integral withdrawal/discharge section

Description: A one-piece, composite open-bottom casting mold with integral withdrawal section is fabricated by thermal spraying of materials compatible with and used for the continuous casting of shaped products of reactive metals and alloys such as, for example, titanium and its alloys or for the gas atomization thereof.
Date: July 30, 2002
Creator: Besser, Matthew; Terpstra, Robert L. (Iowa State Univ., Ames, IA); Sordelet, Daniel J.; Anderson, Iver E.; Hartman, Alan D.; Argetsinger, Edward R. et al.
Partner: UNT Libraries Government Documents Department
open access

Apparatus and Method for Increasing the Diameter of Metal Alloy Wires Within a Molten Metal Pool

Description: In a dip forming process the core material to be coated is introduced directly into a source block of coating material eliminating the need for a bushing entrance component. The process containment vessel or crucible is heated so that only a portion of the coating material becomes molten, leaving a solid portion of material as the entrance port of, and seal around, the core material. The crucible can contain molten and solid metals and is especially useful when coating core material with reacti… more
Date: January 29, 2002
Creator: Hartman, Alan D.; Argetsinger, Edward R.; Hansen, Jeffrey S.; Paige, Jack I.; King, Paul E. & Turner, Paul C.
Partner: UNT Libraries Government Documents Department
open access

Survivable pulse power space radiator

Description: A thermal radiator system is described for use on an outer space vehicle, which must survive a long period of nonuse and then radiate large amounts of heat for a limited period of time. The radiator includes groups of radiator panels that are pivotally connected in tandem, so that they can be moved to deployed configuration wherein the panels lie largely coplanar, and to a stowed configuration wherein the panels lie in a stack to resist micrometerorite damage. The panels are mounted on a boom w… more
Date: March 11, 1988
Creator: Mims, James; Buden, David & Williams, Kenneth
Partner: UNT Libraries Government Documents Department
open access

Counterrotating brushless dc permanent magnet motor

Description: An brushless DC permanent magnet motor is provided for driving an autonomous underwater vehicle. In one embodiment, the motor comprises four substantially flat stators disposed in stacked relationship, with pairs of the stators being axially spaced and each of the stators comprising a tape-wound stator coil; and a first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first sh… more
Date: January 1, 1990
Creator: Hawsey, R. A. & Bailey, J. M.
Partner: UNT Libraries Government Documents Department
open access

A Stripline Fast Faraday Cup for measuring GHz structure of ion beams

Description: The Stripline Fast Faraday Cup is a device which is used to quantitatively and qualitatively measure gigahertz time structure characteristics of ion beams with energies up to at least 30 Mev per nucleon. A stripline geometry is employed in conjunction with an electrostatic screen and a Faraday cup to provide for analysis of the structural characteristics of an ion beam. The stripline geometry allows for a large reduction in the size of the instrument while the electrostatic screen permits measu… more
Date: January 1, 1990
Creator: Bogaty, J. M.
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

Method and apparatus for the formation of a spheromak plasma

Description: An inductive method and apparatus for forming detached spheromak plasma using a thin-walled metal toroidal ring are described that uses external current leads and internal poloidal and toroidal field coils located inside a vacuum chamber filled with low density hydrogen gas and an external axial field generating coil. The presence of a current in the poloidal field coils, and an externally generated axial field sets up the initial poloidal field configuration in which the field is strongest tow… more
Date: March 24, 1981
Creator: Jardin, S. C.; Yamada, M.; Furth, H. P. & Okabayashi, M.
Partner: UNT Libraries Government Documents Department
open access

Multipolar corneal-shaping electrode

Description: The disclosure relates to a multipolar probe using radiofrequency energy to reshape the cornea of an eye. The surface of the cornea is flushed continuously with a conductive coolant during operation.
Date: April 30, 1981
Creator: Doss, J.D.
Partner: UNT Libraries Government Documents Department
open access

A method and apparatus for continuous electrophoresis

Description: A method and apparatus for conducting continuous separation of substances by electrophoresis are disclosed. The process involves electrophoretic separation combined with couette flow in a thin volume defined by opposing surfaces. By alternating the polarity of the applied potential and producing reciprocating short rotations of at least on of the surfaces relative to the other, small increments of separation accumulate to cause substantial, useful segregation of electrophoretically separable co… more
Date: January 1, 1990
Creator: Watson, J. S.
Partner: UNT Libraries Government Documents Department
open access

Triaxial thermopile array geo-heat-flow sensor

Description: A triaxial thermopile array geothermal heat flow sensor is designed to measure heat flow in three dimensions in a reconstituted or unperturbed subsurface regime. Heat flow can be measured in conductive or permeable convective media. The sensor may be encased in protective pvc tubing and includes a plurality of thermistors and an array of heat flow transducers produce voltage proportional to heat flux along the subsurface regime and permit direct measurement of heat flow in the subsurface regime… more
Date: January 1, 1990
Creator: Carrigan, Charles R.; Hardee, Harold C.; Reynolds, Gerald D. & Steinfort, Terry D.
Partner: UNT Libraries Government Documents Department
open access

Heat pipes for use in a magnetic field

Description: A heat pipe configuration is described for use in a magnetic field environment of a fusion reactor. Heat pipes for operation in a magnetic field when liquid metal working fluids are used are optimized by flattening of the heat pipes having an unobstructed annulus which significantly reduces the adverse side region effect of the prior known cylindrically configured heat pipes. The flattened heat pipes operating in a magnetic field can remove 2 to 3 times the heat as a cylindrical heat pipe of th… more
Date: April 29, 1981
Creator: Werner, R. W. & Hoffman, M. A.
Partner: UNT Libraries Government Documents Department
open access

Groove refinishing tool

Description: A groove refinishing tool is disclosed which utilizes a finishing wheel which is controlled by an air grinder motor. The air grinder motor is mounted on a main body section which is pivotally attached to a shoe element. The shoe element contains guide pins which guide the shoe element on the groove to be refinished. Application of pressure on the main body element compresses a weight counterbalance spring to extend the finishing wheel through the shoe element to refinish the groove surface. A w… more
Date: March 11, 1981
Creator: Kellogg, H.J.
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
open access

Wedge assembly for electrical transformer component spacing

Description: This invention is comprised of a wedge assembly that is easily inserted between two surface to be supported thereby, and thereafter expanded to produce a selected spacing between those surfaces. This wedge assembly has two outer members that are substantially identical except that they are mirror images of each other. Oppositely directed faces of these of these outer members are substantially parallel for the purpose of contacting the surfaces to be separated. The other faces of these outer mem… more
Date: January 1, 1990
Creator: Baggett, F.E. & Cage, W.F.
Partner: UNT Libraries Government Documents Department
open access

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

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Combination ring cavity and backward Raman waveguide amplifier

Description: A combination regenerative ring and backward Raman waveguide amplifier and a combination regenerative ring oscillator and backward Raman waveguide amplifier which produce Raman amplification, pulse compression, and efficient energy extraction from the CO/sub 2/ laser pump signal for conversion into a Stokes radiation signal. The ring cavity configuration allows the CO/sub 2/ laser pump signal and Stokes signal to copropagate through the Raman waveguide amplifier. The backward Raman waveguide am… more
Date: March 13, 1981
Creator: Kurnit, N.A.
Partner: UNT Libraries Government Documents Department
open access

Iron active electrode and method of making same

Description: An iron active electrode and method of preparing same in which iron sulfate is calcined in an oxidizing atmosphere at a temperature in the range of from about 600/sup 0/C to about 850/sup 0/C for a time sufficient to produce an iron oxide with a trace amount of sulfate are described. The calcined material is loaded into an electrically conductive support and then heated in a reducing atmosphere at an elevated temperature to produce activated iron having a trace amount of sulfide which is formed… more
Date: April 16, 1981
Creator: Jackovitz, J.F.; Seidel, J. & Pantier, E.A.
Partner: UNT Libraries Government Documents Department
open access

Free-electron-laser design for laser amplification

Description: A method for laser beam amplification by means of free electron laser techniques is described. With wiggler magnetic field strength B/sub w/ and wavelength lambda/sub w/ = 2..pi../k/sub w/ regarded as variable parameters, the method(s) impose conditions such as substantial constancy of B/sub w//k/sub w/ or k/sub w/ or B/sub w/ and k/sub w/ (alternating), coupled with a choice of either constant resonant phase angle or programmed phase space bucket area.
Date: January 26, 1982
Creator: Prosnitz, D. & Szoke, A.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen