Patents Represented by Attorney, Agent or Law Firm William R. Moser
  • Patent number: 5982787
    Abstract: A free electron laser amplifier provides a scalloping annular electron beam that interacts with the axial electric field of a TM.sub.0n mode. A waveguide defines an axial centerline and, a solenoid arranged about the waveguide produces an axial constant magnetic field within the waveguide. An electron beam source outputs a annular electron beam that interacts with the axial magnetic field to have an equilibrium radius and a ripple radius component having a variable radius with a ripple period along the axial centerline. An rf source outputs an axial electric field that propagates within the waveguide coaxial with the electron beam and has a radial mode that interacts at the electron beam at the equilibrium radius component of the electron beam.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: November 9, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Bruce E. Carlsten
  • Patent number: 5976867
    Abstract: A composition and method for using the composition for degrading pollutants in-situ. The composition comprises a biocarrier coated with an antigen-specific antibody that attracts and binds pollution-degrading antigens. The biocarrier, which is preferably in the form of glass microspheres, is coated with one or more strains of antibody. The antibody may be placed into the ground in or near the source of pollutants where it may attract antigens present and bind them, or the antibodies may be first exposed to the antigens and then placed in the ground. Alternatively, the coated biocarriers may be used to degrade pollutants in ground water pumped to the surface and through a biofilter containing the biocarriers. The remediated groundwater can then be returned to the soil.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: November 2, 1999
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Carl B. Fliermans
  • Patent number: 5978444
    Abstract: An apparatus and method for directly determining the crystalline structure of a protein crystal. The crystal is irradiated by a finely collimated x-ray beam. The interaction of the x-ray beam with the crystal produces scattered x-rays. These scattered x-rays are detected by means of a large area, thick CCD which is capable of measuring a significant number of scattered x-rays which impact its surface. The CCD is capable of detecting the position of impact of the scattered x-ray on the surface of the CCD and the quantity of scattered x-rays which impact the same cell or pixel. This data is then processed in real-time and the processed data is outputted to produce a image of the structure of the crystal. If this crystal is a protein the molecular structure of the protein can be determined from the data received.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: November 2, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Muzaffer Atac, Timothy McKay
  • Patent number: 5968224
    Abstract: A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 19, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Stephen J. Gerdemann, Jack C. White
  • Patent number: 5961679
    Abstract: 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 dissolution glass formed of lead oxide and boron oxide resulting in oxidation, dehalogenation, and dissolution of metal oxides. Carbon is added to remove lead oxide, and a boron oxide fusion melt is produced. The fusion melt is essentially devoid of organic materials and halogens, and is easily and rapidly dissolved in nitric acid. After dissolution, uranium, plutonium and rare earth elements are separated from the acid and recovered by processes such as PUREX or ion exchange. The remaining acid waste stream is vitrified to produce a waste glass suitable for storage or disposal. Potential waste feed materials include plutonium scrap and residue, miscellaneous spent nuclear fuel, and uranium fissile wastes.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 5, 1999
    Assignee: U. S. Department of Energy
    Inventor: Charles W. Forsberg
  • Patent number: 5962630
    Abstract: A method of encapsulating mixed waste in which a thermoplastic polymer having a melting temperature less than about 150.degree. C. and sulfur and mixed waste are mixed at an elevated temperature not greater than about 200.degree. C. and mixed for a time sufficient to intimately mix the constituents, and then cooled to a solid. The resulting solid is also disclosed.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: October 5, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Michael H. O'Brien, Arnold W. Erickson
  • Patent number: 5959239
    Abstract: 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 thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filter which reflects back energy having a wavelength which is above the band gap and which is ineffectively filtered by the interference filter, through the P/N junction to the source of radiation thereby avoiding parasitic absorption of the unusable portion of the thermal radiation energy.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: September 28, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Paul F. Baldasaro
  • Patent number: 5960050
    Abstract: A method is provided for determining the fission heat flux of a prime specimen inserted into a specimen of a test reactor. A pair of thermocouple test specimens are positioned at the same level in the holder and a determination is made of various experimental data including the temperature of the thermocouple test specimens, the temperature of bulk water channels located in the test holder, the gamma scan count ratios for the thermocouple test specimens and the prime specimen, and the thicknesses of the outer clads, the fuel fillers, and the backclad of the thermocouple test specimen. Using this experimental data, the absolute value of the fission heat flux for the thermocouple test specimens and prime specimen can be calculated.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: September 28, 1999
    Assignee: The United States as represented by the United States Department of Energy
    Inventor: Frank A. Paxton
  • Patent number: 5960013
    Abstract: A self-seeded free electron laser (FEL) provides a high gain and extraction efficiency for the emitted light. An accelerator outputs a beam of electron pulses to a permanent magnet wiggler having an input end for receiving the electron pulses and an output end for outputting light and the electron pulses. An optical feedback loop collects low power light in a small signal gain regime at the output end of said wiggler and returns the low power light to the input end of the wiggler while outputting high power light in a high signal gain regime.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: September 28, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Richard L. Sheffield
  • Patent number: 5952655
    Abstract: A method and apparatus are provided to concentrate and detect very low levels of radioactive noble gases from the atmosphere. More specifically the invention provides a method and apparatus to concentrate xenon, krypton and radon in an organic fluid and to detect these gases by the radioactive emissions.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: September 14, 1999
    Assignees: The United States of America as represented by the United States Department of Energy, University of Cincinnati
    Inventors: Kenneth C. Gross, John D. Valentine, Francis Markum, Mary Zawadzki, Charles Dickerman
  • Patent number: 5949219
    Abstract: A method and apparatus for determining the instantaneous state-of-charge of a battery in which change in composition with discharge manifests itself as a change in optical absorption. In a lead-acid battery, the sensor comprises a fiber optic system with an absorption cell or, alternatively, an optical fiber woven into an absorbed-glass-mat battery. In a lithium-ion battery, the sensor comprises fiber optics for introducing light into the anode to monitor absorption when lithium ions are introduced.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: September 7, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Jonathan D. Weiss
  • Patent number: 5948722
    Abstract: A method for preparing an acid catalyst having a long shelf-life is provided comprising doping crystalline iron oxides with lattice-compatible metals and heating the now-doped oxide with halogen compounds at elevated temperatures. The invention also provides for a catalyst comprising an iron oxide particle having a predetermined lattice structure, one or more metal dopants for said iron oxide, said dopants having an ionic radius compatible with said lattice structure; and a halogen bound with the iron and the metal dopants on the surface of the particle.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: September 7, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Malvina Farcasiu, Phillip B. Kaufman, J. Rodney Diehl, Hendrik Kathrein
  • Patent number: 5948263
    Abstract: A method for separating water-miscible organic species from a process stream by aqueous biphasic extraction is provided. An aqueous biphase system is generated by contacting a process stream comprised of water, salt, and organic species with an aqueous polymer solution. The organic species transfer from the salt-rich phase to the polymer-rich phase, and the phases are separated. Next, the polymer is recovered from the loaded polymer phase by selectively extracting the polymer into an organic phase at an elevated temperature, while the organic species remain in a substantially salt-free aqueous solution. Alternatively, the polymer is recovered from the loaded polymer by a temperature induced phase separation (cloud point extraction), whereby the polymer and the organic species separate into two distinct solutions.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: September 7, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: David J. Chaiko, William A. Mego
  • Patent number: 5946639
    Abstract: 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 form a mixture comprising swarf and vinyl ester styrene; and curing the mixture. The method is especially useful for stabilizing the ignitable characteristics of radioactive zirconium cutting swarf, and can be used to solidify zirconium swarf, or other ignitable finely divided material, underwater. The process could also be performed out of water with other particulate wastes.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: August 31, 1999
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Clay C. Hess
  • Patent number: 5942164
    Abstract: A two-phase small channel heat exchange matrix simultaneously provides for heat transfer and mass transfer between the liquid and vapor phases of a multi-component mixture at a single, predetermined location within a separation column, significantly improving the thermodynamic efficiency of the separation process. The small channel heat exchange matrix is composed of a series of channels having a hydraulic diameter no greater than 5.0 millimeters for conducting a two-phase coolant. In operation, the matrix provides the liquid-vapor contacting surfaces within the separation column, such that heat and mass are transferred simultaneously between the liquid and vapor phases. The two-phase coolant allows for a uniform heat transfer coefficient to be maintained along the length of the channels and across the surface of the matrix.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: August 24, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Thanh Nhon Tran
  • Patent number: 5942439
    Abstract: The present invention provides a method for preparing a VOC sample for carbon and chlorine isotope ratio analysis by mass spectrometer. A VOC sample is placed in a combustion tube and reacted with CuO to form CO.sub.2 and CuCl. The CO.sub.2 is then extracted and analyzed for the carbon isotope ratio. The CuCl is separated from the excess CuO and reacted with CH.sub.3 I to form CH.sub.3 Cl, extracted and analyzed for chlorine isotope ratio.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: August 24, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Ben D. Holt, Neil C. Sturchio
  • Patent number: 5939324
    Abstract: Performance evaluation soil samples and method of their preparation using encapsulation technology to encapsulate analytes which are introduced into a soil matrix for analysis and evaluation by analytical laboratories. Target analytes are mixed in an appropriate solvent at predetermined concentrations. The mixture is emulsified in a solution of polymeric film forming material. The emulsified solution is polymerized to form microcapsules. The microcapsules are recovered, quantitated and introduced into a soil matrix in a predetermined ratio to form soil samples with the desired analyte concentration.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: August 17, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: James R. Dahlgran
  • Patent number: 5938821
    Abstract: A method of separating tritium oxide from a gas stream containing tritium oxide. The gas stream containing tritium oxide is fed into a container of water having a head space above the water. Bubbling the gas stream containing tritium oxide through the container of water and removing gas from the container head space above the water. Thereafter, the gas from the head space is dried to remove water vapor from the gas, and the water vapor is recycled to the container of water.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: August 17, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Keith Rule, Geoff Gettelfinger, Paul Kivler
  • Patent number: 5939986
    Abstract: A warning system is provided for a mobile working machine to alert an individual of a potentially dangerous condition in the event the individual strays into a hazardous working zone of the machine. The warning system includes a transmitter mounted on the machine and operable to generate a uniform magnetic field projecting beyond an outer periphery of the machine in defining a hazardous working zone around the machine during operation thereof. A receiver, carried by the individual and activated by the magnetic field, provides an alarm signal to alert the individual when he enters the hazardous working zone of the machine.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: August 17, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William H. Schiffbauer, Carl W. Ganoe
  • Patent number: 5936240
    Abstract: A mobile robotic system that conducts radiological surveys to map alpha, beta, and gamma radiation on surfaces in relatively level open areas or areas containing obstacles such as stored containers or hallways, equipment, walls and support columns. The invention incorporates improved radiation monitoring methods using multiple scintillation detectors, the use of laser scanners for maneuvering in open areas, ultrasound pulse generators and receptors for collision avoidance in limited space areas or hallways, methods to trigger visible alarms when radiation is detected, and methods to transmit location data for real-time reporting and mapping of radiation locations on computer monitors at a host station. A multitude of high performance scintillation detectors detect radiation while the on-board system controls the direction and speed of the robot due to pre-programmed paths.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: August 10, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Aed M. Dudar, Clyde R. Ward, Joel D. Jones, William R. Mallet, Larry J. Harpring, Montenius X. Collins, Erin K. Anderson