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| Number | Title | Issue Date |
| 6168871 | Method of forming high-temperature components and components formed thereby A method for forming an exterior surface of a high-temperature component, such as a blade or vane of a gas turbine engine. The method entails forming a shell by a powder metallurgy technique that yields an airfoil whose composition can be readily tailored... | 01/02/2001 |
| 6164916 | Method of applying wear-resistant materials to turbine blades, and turbine blades having wear-resistant materials A method of applying a wear-resistant hardface material (alloy) to a portion of a turbine blade, typically a wear surface on a shrouded turbine blade. A thin foil of brazing alloy (which in the preferred embodiment is a nickel-based alloy) is placed over ... | 12/26/2000 |
| 6162552 | Rhenium-coated tungsten-based alloy and composite articles and method therefor A furnace component having a tungsten-based substrate whose surface is protected by a rhenium-based layer in order to render the component less reactive to quartz, glass and other forms of silica. The layer preferably consists essentially of rhenium or rh... | 12/19/2000 |
| 6152977 | Surface functionalized diamond crystals and methods for producing same A method of functionalizing a diamond crystal comprises hydrogenating a diamond crystal, chlorinating the hydrogenated diamond crystal; and exposing the chlorinated diamond crystal to a metal precursor. The exposing step deposits a layer of metal on surfa... | 11/28/2000 |
| 6136453 | Roughened bond coat for a thermal barrier coating system and method for producing A bond coat and method of forming a bond coat for a thermal barrier coating system are set forth. The bond coat is a roughened bond coat and comprises a layer possessing an uneven, undulated, and irregular surface. The layer is formed of a metal powder mi... | 10/24/2000 |
| 6126430 | Die clamp assembly A die clamp assembly for an extruder comprises at least one passage through which product being extruded flows. The die clamp assembly is attached to an extruder and comprises at least one adapter plate that is connectable to the extruder. The die clamp a... | 10/03/2000 |
| 6124780 | Current limiting device and materials for a current limiting device A current limiting device comprises at least two electrodes; an electrically conductive composite material between the electrodes; interfaces between the electrodes the said composite material; and an inhomogeneous resistance distribution structure at the... | 09/26/2000 |
| 6097750 | Electroslag refining hearth A cold hearth for an electroslag refining crucible includes a floor above which a melt pools. The floor includes a drain for draining the melt by gravity. A plug is deployed inside the drain to block discharge of the melt therethrough, and an actuator is ... | 08/01/2000 |
| 6093449 | Atomizer for spray forming ring structures A method and spray forming system for effectively spraying the inner diameters of intricate objects and makes inner diameter spray forming practical for articles that have various and complicated inner geometries. The spray forming system can include at l... | 07/25/2000 |
| 6086842 | Recycling of sodium hydroxide and production of gypsum from dry flue gas desulfurization The present invention is directed towards a system that makes high quality gypsum from a dry flue gas desulfurization process which utilizes a low temperature regeneration of the carbon adsorbent in the flue gas process. The high quality gypsum is easily ... | 07/11/2000 |
| 6087775 | Exterior shroud lamp A lamp assembly comprises a incandescent lamp capable of generating light. The incandescent lamp comprises a incandescent lamp tube and at least one filament. The assembly also comprises a shroud separate from the incandescent lamp and mounted in communic... | 07/11/2000 |
| 6066019 | Recrystallized cathode filament and recrystallization method Cathode filaments are recrystallized to a microstructure that maintains ductility for proper alignment and electron emission capability. The method comprises controlled heating of a cathode filament from an ambient temperature Tamb to its recry... | 05/23/2000 |
| 6059904 | Isothermal and high retained strain forging of Ni-base superalloys A method combining isothermal and high retained strain forging is described for Ni-base superalloys, particularly those which comprise a mixture of γ and γ' phases, and most particularly those which contain at least about 40 percent by volume of γ'. Th... | 05/09/2000 |
| 6059015 | Method for directional solidification of a molten material and apparatus therefor A method for directional solidification (DS) of a molten material, and an apparatus therefor. The method generally entails the use of a container having a base and peripheral wall that define an interior of the container, an induction coil for heating the... | 05/09/2000 |
| 6051642 | Silicone composition with improved high temperature tolerance A high temperature insulating composite composition comprising at least one ground silicate mineral and at least one silicone polymer. The at least one ground silicate mineral is at least one mineral selected from the group of olivine group; garnet group;... | 04/18/2000 |
| 6041643 | Gas sensor with protective gate, method of forming the sensor, and method of sensing A gas sensor determines the presence of at least one designated gas in a gaseous environment. The gas sensor comprises a semiconductor substrate; a thin insulator layer disposed on the semiconductor substrate; a catalytic metallic gate disposed on the thi... | 03/28/2000 |
| 6043445 | Apparatus for color-based sorting of titanium fragments An apparatus for sorting fragments of titanium-based sponge on the basis of color is disclosed. The apparatus captures at least one color image of each fragment, inserts relevant color values from the image into an automated color-sorting system to determ... | 03/28/2000 |
| 6027584 | Repair alloy compositions A Ni-base alloy composition comprises of Zr, B, and Si. Zr and B are coupled to each other to form ZrB2, the B and Zr suppress melting points of the Ni-base alloy composition. Further, a Ni-base alloy composition also comprises Cr, Ti, and Ni, ... | 02/22/2000 |
| 5996423 | Passive water sampler and method of sampling An improved method and apparatus for monitoring the concentration of contaminants, including volatile organic compounds, in groundwater is provided comprising a semipermeable membrane defining an inner chamber. The chamber is carried within a mesh protect... | 12/07/1999 |
| 5992503 | Systems and methods for maintaining effective insulation between copper segments during electroslag refining process Systems and methods of electroslag refining of metal include the introduction of unrefined metal into an electroslag refining process in which the unrefined metal is first melted at the upper surface of the refining slag. The molten metal is refined as it... | 11/30/1999 |
| 5985206 | Electroslag refining starter An electroslag refining starter includes a refined disk fixedly joined in a central aperture of a mounting ring. The mounting ring supports the starter in a crucible below an ingot being electroslag refined. The disk is consumed during starting and is rep... | 11/16/1999 |
| 5977861 | Current limiting device with grooved electrode structure A current limiting device utilizes an electrically conductive composite material and an inhomogeneous distribution of resistance structure. The current limiting device has a conducting filler and at least two electrodes, where at least one of the electrod... | 11/02/1999 |
| 5960249 | Method of forming high-temperature components and components formed thereby A method for forming an exterior surface of a high-temperature component, such as a blade or vane of a gas turbine engine. The method entails forming a shell by a powder metallurgy technique that yields an airfoil whose composition can be readily tailored... | 09/28/1999 |
| 5950705 | Method for casting and controlling wall thickness A method for casting a turbine bucket with at least one surface cooling hole. The method comprises positioning at least one preformed spacer device on a core, where the preformed spacer device is formed of ceramic materials and comprises opposed end plate... | 09/14/1999 |
| 5942055 | Silicide composite with niobium-based metallic phase and silicon-modified Laves-type phase A silicide-based composite toughened with a niobium-based metallic phase and further containing a silicon-modified chromium-based Laves-type phase to promote oxidation resistance. The silicide-based composite generally contains one or more silicide interm... | 08/24/1999 |
| 5932968 | Plasma display configuration A plasma display comprises a face plate; at least one energy source; a first layer comprising pigmented phosphors; and a second layer comprising non-pigmented phosphors. The at least one energy source emits energy that is capable of exciting the non-pigme... | 08/03/1999 |
| 5932033 | Silicide composite with niobium-based metallic phase and silicon-modified laves-type phase A silicide-based composite toughened with a niobium-based metallic phase, and further containing a phase that significantly improves the oxidation resistance of the composite. The oxidation-resistant phase is a chromium-based Laves-type phase modified wit... | 08/03/1999 |
| 5931600 | Thermal desorption and destruction of dense non-aqueous phase liquid in fractured bedrock An in-situ method for thermal desorption, extraction, and destruction of dense nonaqueous organic contaminants in fractured bedrock is accomplished through the use of thermal wells, a flameless oxidizer, and hot carbon adsorption chambers.... | 08/03/1999 |
| 5929744 | Current limiting device with at least one flexible electrode A current limiting device has an electrically conductive composite material, an inhomogeneous distribution of resistance structure comprises a conducting filler, and at least two electrodes. At least one of the electrodes is a flexible electrode to mainta... | 07/27/1999 |
| 5930332 | Method for connecting a molybdenum-based alloy structure to a structure formed from a more ductile alloy, and related articles A new method for forming a joint between a molybdenum-based alloy structure and a structure formed from a more ductile alloy is disclosed. The method involves the solid-state bonding of the two structures, which can be carried out by a variety of techniqu... | 07/27/1999 |
| 5906791 | Steel alloys A steel comprises additives including rare earth elements, boron and at least one of rhenium, osmium, iridium, ruthenium, rhodium. The steel exhibits resistance to embrittlement, oxidation and creep. The steel also comprises balanced amounts of nickel and... | 05/25/1999 |
| 5905269 | Enhanced infrared energy reflecting composition and method of manufacture An infrared energy reflecting enamel composition comprises a ground coat of enamel on a substrate and embedded TiO2 particles in the ground coat of enamel. The infrared reflecting enamel composition has an infrared energy reflectivity value of ... | 05/18/1999 |
| 5900381 | Opaque silica composition An opaque silica comprises silica and at least one second phase solid material. The at least one second phase solid material is essentially uniformly dispersed in the silica. A cut surface formed through the silica is free from surface defects since the a... | 05/04/1999 |
| 5898180 | Infrared energy reflecting composition and method of manufacture An infrared energy cooking and heating apparatus comprises an infrared layer or reflective coating, particularly on inner panels of ovens or other cooking devices. The coating is preferably an enamel and reflects the infrared energy to the food being cook... | 04/27/1999 |
| 5889590 | Optical cavity sensor A sensor for sensing conditions on an object. The sensor comprises a first at least partially reflective surface layer disposed adjacent the object in close conforming relationship with a surface of the object, an intermediate layer, and a second at least... | 03/30/1999 |
| 5886132 | Method for controlling the effective level of catalyst during the preparation of a polycarbonate polymer by transesterification A method for determining the effective level of catalyst for the preparation of a polycarbonate polymer by a transesterification reaction is disclosed. The method involves measurement of the leaving group by-product (usually phenol) produced in a test rea... | 03/23/1999 |
| 5867356 | Current limiting system and method A current limiting system for a circuit limits current flow through the system. The current limiting system comprises at least one main switch comprising first and second main switch contacts and a contactor connecting the first and second main switch con... | 02/02/1999 |
| 5851837 | Method for determination of salt stoichiometry A method for making bisphenol salt as the result of the reaction between bisphenol and an alkali metal hydroxide. The method comprising steps to obtain the anhydrous alkali metal bisphenoxide salt within about a 0.2 mol % stoichiometry relationship betwee... | 12/22/1998 |
| 5843584 | Superconductive article and method of making A superconductive article is made from interconnected superconductive, metallic tapes. The tapes are mechanically joined, and electrically interconnected by a plurality of superconductive interconnections that extend between the tapes. Articles of the inv... | 12/01/1998 |
| 5822853 | Method for making cylindrical structures with cooling channels Methods of making cylindrical structures with cooling channels, such as, for example, combustor/transition pieces for gas turbines having a double wall with a plurality of cooling channels, both axially and, in some cases, circumferential cross-flow passa... | 10/20/1998 |
