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| Number | Title | Issue Date |
| 5804965 | Method and apparatus for steady-state magnetic measurement of poloidal magnetic field near a tokamak plasma A method and apparatus for the steady-state measurement of poloidal magnetic field near a tokamak plasma, where the tokamak is configured with respect to a cylindrical coordinate system having z, phi (toroidal), and r axes. The method is based on combinin... | 09/08/1998 |
| 5573737 | Functionally gradient material for membrane reactors to convert methane gas into value-added products A functionally gradient material for a membrane reactor for converting methane gas into value-added-products includes an outer tube of perovskite, which contacts air; an inner tube which contacts methane gas, of zirconium oxide, and a bonding layer betwee... | 11/12/1996 |
| 5512164 | Method for sputtering with low frequency alternating current Low frequency alternating current sputtering is provided by connecting a low frequency alternating current source to a high voltage transformer having outer taps and a center tap for stepping up the voltage of the alternating current. The center tap of th... | 04/30/1996 |
| 5503811 | Method for removing metal vapor from gas streams A process for cleaning an inert gas contaminated with a metallic vapor, such as cadmium, involves withdrawing gas containing the metallic contaminant from a gas atmosphere of high purity argon; passing the gas containing the metallic contaminant to a mass... | 04/02/1996 |
| 5494647 | Use of Chelex-100 for selectively removing Y-90 from its parent Sr-90 A method for selectively removing yttrium-90 from its parent strontium-90 contained in an environmental sample includes loading the sample onto a column containing a chelating ion-exchange resin capable of retaining yttrium-90; washing the column with a s... | 02/27/1996 |
| 5464988 | Tritium waste package A containment and waste package system for processing and shipping tritium xide waste received from a process gas includes an outer drum and an inner drum containing a disposable molecular sieve bed (DMSB) seated within outer drum. The DMSB includes an inl... | 11/07/1995 |
| 5372686 | Direct current sputtering of boron from boron/coron mixtures A method for coating a substrate with boron by sputtering includes lowering the electrical resistance of a boron-containing rod to allow electrical conduction in the rod; placing the boron-containing rod inside a vacuum chamber containing substrate materi... | 12/13/1994 |
| 5368736 | Process for the separation and purification of yttrium-90 for medical applications An extraction chromatographic method for the preparation of 90 Y of high chemical and radiochemical purity is disclosed. After an initial purification of a 90 Sr stock solution and a suitable period of 90 Y ingrowth, the s... | 11/29/1994 |
| 5344623 | Process for the extraction of strontium from acidic solutions The invention is a process for selectively extracting strontium values from aqueous nitric acid waste solutions containing these and other fission product values. The extractant solution is a macrocyclic polyether in an aliphatic hydrocarbon diluent conta... | 09/06/1994 |
| 5340081 | Means for positively seating a piezoceramic element in a piezoelectric valve during inlet gas injection A piezoelectric valve in a gas delivery system includes a piezoceramic element bonded to a valve seal and disposed over a valve seat, and retained in position by an O-ring and a retainer; an insulating ball normally biased by a preload spring against the ... | 08/23/1994 |
| 5317234 | Mode trap for absorbing transverse modes of an accelerated electron beam A mode trap to trap and absorb transverse modes formed by a beam in a linear accelerator includes a waveguide having a multiplicity of electrically conductive (preferably copper) irises and rings, each iris and ring including an aperture, and the irises a... | 05/31/1994 |
| 5299242 | Dual annular rotating "windowed" nuclear reflector reactor control system A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. Th... | 03/29/1994 |
| 5248566 | Fuel cell system for transportation applications A propulsion system for a vehicle having pairs of front and rear wheels and a fuel tank. An electrically driven motor having an output shaft operatively connected to at least one of said pair of wheels is connected to a fuel cell having a positive electro... | 09/28/1993 |
| 5232656 | Fast-acting nuclear reactor control device A fast-acting nuclear reactor control device for moving and positioning a fety control rod to desired positions within the core of the reactor between a run position in which the safety control rod is outside the reactor core, and a shutdown position in w... | 08/03/1993 |
| 5225146 | Injection of electrons with predominantly perpendicular energy into an area of toroidal field ripple in a tokamak plasma to improve plasma confinement An electron injection scheme for controlling transport in a tokamak plasma. Electrons with predominantly perpendicular energy are injected into a ripple field region created by a group of localized poloidal field bending magnets. The trapped electrons the... | 07/06/1993 |
| 5225788 | Single-bunch synchrotron shutter An apparatus for selecting a single synchrotron pulse from the millions of pulses provided per second from a synchrotron source includes a rotating spindle located in the path of the synchrotron pulses. The spindle has multiple faces of a highly reflectiv... | 07/06/1993 |
| 5200144 | Simulated nuclear reactor fuel assembly An apparatus for electrically simulating a nuclear reactor fuel assembly. It includes a heater assembly having a top end and a bottom end and a plurality of concentric heater tubes having electrical circuitry connected to a power source, and radially spac... | 04/06/1993 |
| 5179285 | Automatically processed alpha-track radon monitor An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located ... | 01/12/1993 |
| 5173264 | High throughput liquid absorption preconcentrator sampling instrument A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is conti... | 12/22/1992 |
| 5160911 | Toroidal constant-tension superconducting magnetic energy storage units A superconducting magnetic energy storage unit is provided in which the magnet is wound in a toroidal fashion such that the magnetic field produced is contained only within the bore of the magnet, and thus producing a very low external field. The supercon... | 11/03/1992 |
| 5147137 | Refractory thermowell for continuous high temperature measurement of molten metal An apparatus for the continuous high temperature measurement of materials in vessels lined with rammed or cast refractory materials. A refractory housing member is integral with the refractory lining of the vessel and contains a plurality of high temperat... | 09/15/1992 |
| 5139896 | All ceramic structure for molten carbonate fuel cell An all-ceramic molten carbonate fuel cell having a composition formed of a multivalent metal oxide or oxygenate such as an alkali metal, transition metal oxygenate. The structure includes an anode and cathode separated by an electronically conductive inte... | 08/18/1992 |
| 5131736 | Solid colloidal optical wavelength filter A solid colloidal optical wavelength filter includes a suspension of spheal particles dispersed in a coagulable medium such as a setting plastic. The filter is formed by suspending spherical particles in a coagulable medium; agitating the particles and c... | 07/21/1992 |
| 5126721 | Flame quality monitor system for fixed firing rate oil burners A method and apparatus for determining and indicating the flame quality, or efficiency of the air-fuel ratio, in a fixed firing rate heating unit, such as an oil burning furnace, is provided. When the flame brightness falls outside a preset range, the fla... | 06/30/1992 |
| 5114661 | Solid state laser media driven by remote nuclear powered fluorescence An apparatus is provided for driving a solid state laser by a nuclear powered fluorescence source which is located remote from the fluorescence source. A nuclear reaction produced in a reaction chamber generates fluorescence or photons. The photons are co... | 05/19/1992 |
| 5113771 | Pulverized coal fuel injector A pulverized coal fuel injector contains an acceleration section to improve the uniformity of a coal-air mixture to be burned. An integral splitter is provided which divides the coal-air mixture into a number separate streams or jets, and a center body di... | 05/19/1992 |
| 5054018 | Spatial optic multiplexer/diplexer An apparatus for simultaneous transmission of optic signals having different wavelengths over a single optic fiber. Multiple light signals are transmitted through optic fibers that are formed into a circumference surrounding a central core fiber. The mult... | 10/01/1991 |
| 5041147 | Hydrogen isotope separation utilizing bulk getters Tritium and deuterium are separated from a gaseous mixture thereof, derived from a nuclear fusion reactor or some other source, by providing a casing with a bulk getter therein for absorbing the gaseous mixture to produce an initial loading of the getter,... | 08/20/1991 |
| 5014680 | Self-powered automatic secondary air controllers for woodstoves and small furnaces A controller for automatically regulating the supply of secondary combustion air to woodstoves and small furnaces. The controller includes a movable air valve for controlling the amount of secondary air admitted into the chamber. A self powered means moni... | 05/14/1991 |
| 5008083 | Apparatus for centrifugal separation of coal particles A gravimetric cell for centrifugal separation of fine coal by density has a cylindrical body and a butterfly valve or other apparatus for selectively sealing the body radially across the approximate center of the cylinder. A removable top is provided whic... | 04/16/1991 |
| 4992341 | Fabrication of dual porosity electrode structure A substantially entirely fibrous ceramic which may have dual porosity of both micro and macro pores. Total porosity may be 60-75% by volume. A method of spraying a slurry perpendicularly to an ambient stream of air is disclosed along with a method of remo... | 02/12/1991 |
| 4977095 | Liquid-absorption preconcentrator sampling instrument A system for detecting trace concentrations of an analyte in air and includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container in which is disposed a wettable material extending substan... | 12/11/1990 |
| 4976938 | Hydrogen isotope separation utilizing bulk getters Tritium and deuterium are separated from a gaseous mixture thereof, derived from a nuclear fusion reactor or some other source, by providing a casing with a bulk getter therein for absorbing the gaseous mixture to produce an initial loading of the getter,... | 12/11/1990 |
| 4974453 | Method and apparatus for nitrogen oxide determination Method and apparatus for determining nitrogen oxide content in a high temperature process gas, which involves withdrawing a sample portion of a high temperature gas containing nitrogen oxide from a source to be analyzed. The sample portion is passed throu... | 12/04/1990 |
| 4942135 | Method for preconcentrating a sample for subsequent analysis A system for analysis of trace concentration of contaminants in air includes a portable liquid chromatograph and a preconcentrator for the contaminants to be analyzed. The preconcentrator includes a sample bag having an inlet valve and an outlet valve for... | 07/17/1990 |
| 4942297 | Real time infrared aerosol analyzer Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine pa... | 07/17/1990 |
| 4938633 | Seismic isolation systems with distinct multiple frequencies A method and apparatus for isolating a building or other structure from smic vibratory motion which provides increased assurance that large horizontal motion of the structure will not occur than is provided by other isolation systems. Increased assurance... | 07/03/1990 |
