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| Number | Title | Issue Date |
| 6162987 | Monolithic interconnected module with a tunnel junction for enhanced electrical and optical performance An improved thermophotovoltaic (TPV) n/p/n device is provided. Monolithic Interconnected Modules (MIMS), semiconductor devices converting infrared radiation to electricity, have been developed with improved electrical and optical performance. The structur... | 12/19/2000 |
| 6122967 | Free motion scanning system The present invention relates to an ultrasonic scanner system and method for the imaging of a part system, the scanner comprising: a probe assembly spaced apart from the surface of the part including at least two tracking signals for emitting radiation an... | 09/26/2000 |
| 6115528 | Raman fiber optic probe assembly for use in hostile environments This invention provides a device for Raman spectroscopic measurement of composition and concentrations in a hostile environment by the use of a first fiber optic as a means of directing high intensity monochromatic light from a laser to the hostile enviro... | 09/05/2000 |
| 6102979 | Oxide strengthened molybdenum-rhenium alloy Provided is a method of making an ODS molybdenum-rhenium alloy which includes the steps of: (a) forming a slurry containing molybdenum oxide and a metal salt dispersed in an aqueous medium, the metal salt being selected from nitrates or acetates of lantha... | 08/15/2000 |
| 6075176 | Iron-phosphate ceramics for solidification of mixed low-level waste A method of immobilizing mixed low-level waste is provided which uses low cost materials and has a relatively long hardening period. The method includes: forming a mixture of iron oxide powders having ratios, in mass %, of FeO:Fe2 O3... | 06/13/2000 |
| 6065630 | Sapphire tube pressure vessel A pressure vessel is provided for observing corrosive fluids at high temperatures and pressures. A transparent Teflon bag contains the corrosive fluid and provides an inert barrier. The Teflon bag is placed within a sapphire tube, which forms a pressure b... | 05/23/2000 |
| 6057506 | Variable current-voltage TPV device for use in a thermophotovoltaic energy conversion system A front-side or back-side illuminated variable current-voltage thermophotovoltaic device comprises a support substrate; isolation layers disposed on the support substrate; a plurality of cells disposed on the isolation layers, each of the cells including ... | 05/02/2000 |
| 6051777 | Double opposite-end tubesheet design for a thermovoltaic energy converter A method and apparatus for the direct conversion of energy by thermovoltaic energy conversion having first and second tubesheets, at least one photon emitter plate secured to and extending from the first tubesheet, at least one cold plate secured to and e... | 04/18/2000 |
| 6043426 | Thermophotovoltaic energy conversion system having a heavily doped n-type region A thermophotovoltaic (TPV) energy conversion semiconductor device is provided which incorporates a heavily doped n-type region and which, as a consequence, has improved TPV conversion efficiency. The thermophotovoltaic energy conversion device includes an... | 03/28/2000 |
| 5961679 | Recovery of fissile materials from nuclear wastes A process for recovering fissile materials such as uranium, and plutonium, and rare earth elements, from complex waste feed material, and converting the remaining wastes into a waste glass suitable for storage or disposal. The waste feed is mixed with a d... | 10/05/1999 |
| 5959239 | Thermovoltaic semiconductor device including a plasma filter A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovo... | 09/28/1999 |
| 5946639 | In-situ stabilization of radioactive zirconium swarf The method for treating ignitable cutting swarf in accordance with the present invention involves collecting cutting swarf in a casting mold underwater and injecting a binder mixture comprising vinyl ester styrene into the vessel to fill void volume; and ... | 08/31/1999 |
| 5885665 | VO2 precipitates for self-protected optical surfaces A method for forming crystallographically coherent precipitates of vanadium dioxide in the near-surface region of sapphire and the resulting product is disclosed. Ions of vanadium and oxygen are stoichiometrically implanted into a sapphire substrate (Al | 03/23/1999 |
| 5868876 | High-strength, creep-resistant molybdenum alloy and process for producing the same A wet-doping process for producing an oxide-dispersion strengthened (ODS), creep-resistant molybdenum alloy is disclosed. The alloy is made by adding nitrate or acetate salts of lanthanum, cerium, thorium, or yttrium to molybdenum oxide to produce a slurr... | 02/09/1999 |
| 5825672 | Method and apparatus for automatically detecting patterns in digital point-ordered signals The present invention is a method and system for detecting a physical feature of a test piece by detecting a pattern in a signal representing data from inspection of the test piece. The pattern is detected by automated additive decomposition of a digital ... | 10/20/1998 |
| 5805657 | Nuclear fuel elements made from nanophase materials A nuclear reactor core fuel element is composed of nanophase high temperature materials. An array of the fuel elements in rod form are joined in an open geometry fuel cell that preferably also uses such nanophase materials for the cell structures. The par... | 09/08/1998 |
| 5772793 | Tube-in-tube thermophotovoltaic generator A thermophotovoltaic device includes at least one thermal radiator tube, a cooling tube concentrically disposed within each thermal radiator tube and an array of thermophotovoltaic cells disposed on the exterior surface of the cooling tube. A shell having... | 06/30/1998 |
| 5769964 | Bulk single crystal ternary substrates for a thermophotovoltaic energy conversion system A thermophotovoltaic energy conversion device and a method for making the device. The device includes a substrate formed from a bulk single crystal material having a bandgap (Eg) of 0.4 eV | 06/23/1998 |
| 5753050 | Thermophotovoltaic energy conversion device A thermophotovoltaic device and a method for making the thermophotovoltaic device. The device includes an n-type semiconductor material substrate having top and bottom surfaces, a tunnel junction formed on the top surface of the substrate, a region of act... | 05/19/1998 |
| 5743925 | Compact cyclone filter train for radiological and hazardous environments A compact cyclone filter train for the removal of hazardous and radiologi particles from a gaseous fluid medium which permits a small cyclone separator to be used in a very small space envelope due to the arrangement of the filter housing adjacent to the... | 04/28/1998 |
| 5737445 | Automated feature detection and identification in digital point-ordered signals A computer-based automated method to detect and identify features in digital point-ordered signals. The method is used for processing of non-destructive test signals, such as eddy current signals obtained from calibration standards. The signals are first ... | 04/07/1998 |
| 5729123 | Method and apparatus for probing relative volume fractions A relative volume fraction probe particularly for use in a multiphase fluid system includes two parallel conductive paths defining therebetween a sample zone within the system. A generating unit generates time varying electrical signals which are inserted... | 03/17/1998 |
| 5714862 | Method and apparatus for monitoring the rotating frequency of de-energized induction motors The rotational speed of a coasting induction motor is measured by sensing e residual electrical voltages at the power terminals of the motor, thus eliminating the need for conventional tachometer equipment, additional mechanical components or modification... | 02/03/1998 |
| 5702335 | Remote drill bit loader A drill bit loader for loading a tapered shank of a drill bit into a similarly tapered recess in the end of a drill spindle. The spindle has a transverse slot at the inner end of the recess. The end of the tapered shank of the drill bit has a transverse t... | 12/30/1997 |
| 5700332 | Segregated tandem filter for enhanced conversion efficiency in a thermophotovoltaic energy conversion system A filter system to transmit short wavelength radiation and reflect long wavelength radiation for a thermophotovoltaic energy conversion cell comprises an optically transparent substrate segregation layer with at least one coherent wavelength in optical th... | 12/23/1997 |
| 5697834 | Remote repair appliance A remote appliance for supporting a tool for performing work at a worksite on a substantially circular bore of a workpiece and for providing video signals of the worksite to a remote monitor comprising: a baseplate having an inner face and an outer face; ... | 12/16/1997 |
| 5688003 | Retaining latch for a water pit gate A retaining latch for use in a hazardous materials storage or handling facility to adjustably retain a water pit gate in a gate frame. A retaining latch is provided comprising a latch plate which is rotatably mounted to each end of the top of the gate and... | 11/18/1997 |
| 5686774 | Reduced vibration motor winding arrangement 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 connecte... | 11/11/1997 |
| 5685052 | Graphitic packing removal tool Graphitic packing removal tools for removal of the seal rings in one piece. he packing removal tool has a cylindrical base ring the same size as the packing ring with a surface finish, perforations, knurling or threads for adhesion to the seal ring. Elonga... | 11/11/1997 |
| 5676494 | Particle injector for fluid systems A particle injector device provides injection of particles into a liquid eam. The device includes a funnel portion comprising a conical member having side walls tapering from a top opening (which receives the particles) down to a relatively smaller exit ... | 10/14/1997 |
| 5673331 | Method and apparatus for reading meters from a video image A method and system to enable acquisition of data about an environment from one or more meters using video images. One or more meters are imaged by a video camera and the video signal is digitized. Then, each region of the digital image which corresponds ... | 09/30/1997 |
| 5666724 | Installation and assembly device and method of using An installation and assembly device for aligning a first member such as a pump impeller with a second member such as an inlet nozzle of an impeller pump. The installation and assembly device includes a sleeve slideable within the inlet nozzle and a vertic... | 09/16/1997 |
| 5626445 | Tube cutter tool and method of use for coupon removal A tube cutter tool is insertable into a tube for cutting a coupon from a damaged site on the exterior of the tube. Prior to using the tool, the damaged site is first located from the interior of the tube using a multi-coil pancake eddy current test probe.... | 05/06/1997 |
| 5626687 | Thermophotovoltaic in-situ mirror cell 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... | 05/06/1997 |
| 5625314 | Self-calibrating multiplexer circuit 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 c... | 04/29/1997 |
| 5591912 | Method and apparatus for inspecting conduits An apparatus and method for ultrasonic inspection of a conduit are provided. The method involves directing a first ultrasonic pulse at a particular area of the conduit at a first angle, receiving the reflected sound from the first ultrasonic pulse, substa... | 01/07/1997 |
| 5567946 | Deconnable self-reading pocket dosimeter containment with self-contained light 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 ... | 10/22/1996 |
| 5560883 | Method for forming a layer of synthetic corrosion products on tubing surfaces A method is provided for forming a synthetic corrosion product layer on tube surfaces. The method utilizes two dissimilar materials with different coefficients of thermal expansion. An object tube and sacrificial tube are positioned one inside the other s... | 10/01/1996 |
| 5533075 | Spent fuel container alignment device and method An alignment device is used with a spent fuel shipping container including a plurality of fuel pockets for spent fuel arranged in an annular array and having a rotatable cover including an access opening therein. The alignment device includes a lightweigh... | 07/02/1996 |
| 5525812 | Retractable pin dual in-line package test clip This invention is a Dual In-Line Package (DIP) test clip for use when troubleshooting circuits containing DIP integrated circuits. This test clip is a significant improvement over existing DIP test clips in that it has retractable pins which will permit t... | 06/11/1996 |
