Patents Represented by Attorney Edward C. Walterscheid
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Patent number: 4152118Abstract: Organophosphine copper(I) mercaptide complexes are useful as convenient and semiquantitative visual sulfur dioxide gas indicators. The air-stable complexes form 1:1 adducts in the presence of low concentrations of sulfur dioxide gas, with an associated color change from nearly colorless to yellow-orange. The mercaptides are made by mixing stoichiometric amounts of the appropriate copper(I) mercaptide and phosphine in an inert organic solvent.Type: GrantFiled: June 16, 1978Date of Patent: May 1, 1979Assignee: The United States of America as represented by the United States Department of EnergyInventors: Phillip G. Eller, Gregory J. Kubas
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Patent number: 4148612Abstract: Trace impurities in flowing gases may be detected and measured by a dynamic atomic molecular emission spectrograph utilizing as its energy source the energy transfer reactions of metastable species, atomic or molecular, with the impurities in the flowing gas. An electronically metastable species which maintains a stable afterglow is formed and mixed with the flowing gas in a region downstream from and separate from the region in which the metastable species is formed. Impurity levels are determined quantitatively by the measurement of line and/or band intensity as a function of concentration employing emission spectroscopic techniques.Type: GrantFiled: September 7, 1977Date of Patent: April 10, 1979Assignee: The United States of America as represented by the United States Department of EnergyInventors: Gene W. Taylor, Edward J. Dowdy
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Patent number: 4109612Abstract: Method and apparatus are disclosed for producing very uniform coatings of a desired material on discrete microsized particles by electroless techniques. Agglomeration or bridging of the particles during the deposition process is prevented by imparting a sufficiently random motion to the particles that they are not in contact with each other for a time sufficient for such to occur.Type: GrantFiled: September 16, 1975Date of Patent: August 29, 1978Assignee: The United States of America as represented by the United States Department of EnergyInventor: Anton Mayer
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Patent number: 4088553Abstract: A method of separating boron isotopes .sup.10 B and .sup.11 B by laser-induced selective excitation and photodissociation of BCl.sub.3 molecules containing a particular boron isotope. The photodissociation products react with an appropriate chemical scavenger and the reaction products may readily be separated from undissociated BCl.sub.3, thus effecting the desired separation of the boron isotopes.Type: GrantFiled: June 12, 1974Date of Patent: May 9, 1978Assignee: The United States of America as represented by the United States Department of EnergyInventor: Stephen D. Rockwood
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Patent number: 4080273Abstract: Uranyl ion in solution in tri-n-butyl phosphate is readily photochemically reduced to U(IV). The product U(IV) may effectively be used in the Purex process for treating spent nuclear fuels to reduce Pu(IV) to Pu(III). The Pu(III) is readily separated from uranium in solution in the tri-n-butyl phosphate by an aqueous strip.Type: GrantFiled: September 7, 1976Date of Patent: March 21, 1978Assignee: The United States of America as represented by the United States Department of EnergyInventors: Gerald L. De Poorter, Cheryl K. Rofer-De Poorter
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Patent number: 4054686Abstract: Bulk coatings of Nb.sub.3 Ge superconductors having transition temperatures in excess of 20 K are readily formed by a chemical vapor deposition technique involving the coreduction of NbCl.sub.5 and GeCl.sub.4 in the presence of hydrogen. The NbCl.sub.5 vapor may advantageously be formed quantitatively in the temperature range of about 250.degree. to 260.degree. C by the chlorination of Nb metal provided the partial pressure of the product NbCl.sub.5 vapor is maintained at or below about 0.1 atm.Type: GrantFiled: June 26, 1975Date of Patent: October 18, 1977Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: Lawrence R. Newkirk, Flavio A. Valencia
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Patent number: 4049515Abstract: Multiple photon absorption from an intense beam of infrared laser light may be used to induce selective chemical reactions in molecular species which result in isotope separation or enrichment. The molecular species must have a sufficient density of vibrational states in its vibrational manifold that, in the presence of sufficiently intense infrared laser light tuned to selectively excite only those molecules containing a particular isotope, multiple photon absorption can occur. By this technique, for example, intense CO.sub.2 laser light may be used to highly enrich .sup.34 S in natural SF.sub.6 and .sup.11 B in natural BCl.sub.3.Type: GrantFiled: April 22, 1975Date of Patent: September 20, 1977Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: C. Paul Robinson, Stephen D. Rockwood, Reed J. Jensen, John L. Lyman, Jack P. Aldridge, III
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Patent number: 4038125Abstract: Methods for preparing laser fusion targets of the ball-and-disk type are disclosed. Such targets are suitable for irradiation with one or two laser beams to produce the requisite uniform compression of the fuel material.Type: GrantFiled: June 18, 1975Date of Patent: July 26, 1977Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: R. Jay Fries, Eugene H. Farnum, Gene H. McCall
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Patent number: 4032377Abstract: Triaminotrinitrobenzene is readily formed by the nitration of 1,3,5-trichlorobenzene to 1,3,5-trichloro-2,4,6-trinitrobenzene followed by amination to triaminotrinitrobenzene. The purity of the triaminotrinitrobenzene is significantly improved if, during the amination step, sufficient water is present that the byproduct ammonium chloride formed during the amination is rendered at least semideliquescent.Type: GrantFiled: July 19, 1976Date of Patent: June 28, 1977Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventor: Theodore M. Benziger
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Patent number: 4028154Abstract: The chemical explosive, ammonium 2,4,5-trinitroimidazole, has explosive performance comparable to that of the well-known RDX, but a thermal stability which is significantly greater.Type: GrantFiled: September 1, 1976Date of Patent: June 7, 1977Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventor: Michael D. Coburn
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Patent number: 3997435Abstract: Hollow microspheres having thin and very uniform wall thickness are useful as containers for the deuterium and tritium gas mixture used as a fuel in laser fusion targets. Hollow microspheres are commercially available; however, in commercial lots only a very small number meet the rigid requirements for use in laser fusion targets. Those meeting these requirements may be separated from the unsuitable ones by subjecting the commercial lot to size and density separations and then by subjecting those hollow microspheres thus separated to an external pressurization at which those which are aspherical or which have nonuniform walls are broken and separating the sound hollow microspheres from the broken ones.Type: GrantFiled: October 29, 1975Date of Patent: December 14, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: Eugene H. Farnum, R. Jay Fries, Jerry W. Havenhill, Maurice Lee Smith, Daniel L. Stoltz
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Patent number: 3994796Abstract: Method and apparatus are disclosed for electrolytically producing very uniform coatings of a desired material on discrete microsized particles. Agglomeration or bridging of the particles during the deposition process is prevented by imparting a sufficiently random motion to the particles that they are not in contact with a powered cathode for a time sufficient for such to occur.Type: GrantFiled: September 11, 1975Date of Patent: November 30, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventor: Anton Mayer
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Patent number: 3994778Abstract: Hydrogen barriers which comprise liquid metals in which the solubility of hydrogen is low and which have good thermal conductivities at operating temperatures of interest. Such barriers are useful in nuclear fuel elements containing a metal hydride moderator which has a substantial hydrogen dissociation pressure at reactor operating temperatures.Type: GrantFiled: July 15, 1971Date of Patent: November 30, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: George M. Grover, Thurman G. Frank, Edward S. Keddy
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Patent number: 3985595Abstract: A highly insensitive and heat resistant plastic-bonded explosive containing 90 wt % triaminotrinitrobenzene and 10 wt % of a fully saturated copolymer of chlorotrifluoroethylene and vinylidene fluoride is readily manufactured by the slurry process.Type: GrantFiled: November 29, 1974Date of Patent: October 12, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventor: Theodore M. Benziger
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Patent number: 3973213Abstract: An electrically pumped gas laser amplifier unit having a disc-like configuration in which light propagation is radially outward from the axis rather than along the axis. The input optical energy is distributed over a much smaller area than the output optical energy, i.e., the amplified beam, while still preserving the simplicity of parallel electrodes for pumping the laser medium. The system may thus be driven by a comparatively low optical energy input, while at the same time, owing to the large output area, large energies may be extracted while maintaining the energy per unit area below the threshold of gas breakdown.Type: GrantFiled: May 28, 1974Date of Patent: August 3, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: Stephen D. Rockwood, Robert E. Stapleton, Thomas F. Stratton
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Patent number: 3940617Abstract: A method for nondestructively determining the deuterium and tritium content of laser fusion targets by counting the x rays produced by the interaction of tritium beta particles with the walls of the microballoons used to contain the deuterium and tritium gas mixture under high pressure. The x rays provide a direct measure of the tritium content and a means for calculating the deuterium content using the initial known D-T ratio and the known deuterium and tritium diffusion rates.Type: GrantFiled: April 7, 1975Date of Patent: February 24, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: Eugene H. Farnum, R. Jay Fries
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Patent number: 3935545Abstract: Self-focusing damage caused by diffraction in laser amplifier systems may be minimized by appropriately tailoring the input optical beam profile by passing the beam through an aperture having a uniform high optical transmission within a particular radius r.sub.o and a transmission which drops gradually to a low value at greater radii. Apertures having the desired transmission characteristics may readily be manufactured by exposing high resolution photographic films and plates to a diffuse, disk-shaped light source and mask arrangement.Type: GrantFiled: January 2, 1975Date of Patent: January 27, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: Anthony J. Campillo, Brian E. Newnam, Stanley L. Shapiro, N. James Terrell, Jr.
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Patent number: 3933431Abstract: A method of simultaneously sampling particulate mercury, organic mercurial vapors, and metallic mercury vapor in the working and occupational environment and determining the amount of mercury derived from each such source in the sampled air. A known volume of air is passed through a sampling tube containing a filter for particulate mercury collection, a first adsorber for the selective adsorption of organic mercurial vapors, and a second adsorber for the adsorption of metallic mercury vapor. Carbon black molecular sieves are particularly useful as the selective adsorber for organic mercurial vapors. The amount of mercury adsorbed or collected in each section of the sampling tube is readily quantitatively determined by flameless atomic absorption spectrophotometry.Type: GrantFiled: July 23, 1974Date of Patent: January 20, 1976Assignee: The United States of America as represented by the United States Energy Research and Development AdministrationInventors: Patricio E. Trujillo, Evan E. Campbell, Bernard C. Eutsler