Patents Represented by Attorney, Agent or Law Firm Emily G. Schneider
  • Patent number: 7096123
    Abstract: A method for mathematically identifying at least one diesel fuel suitable for combustion in an automotive diesel engine with significantly reduced emissions and producible from known petroleum blendstocks using known refining processes, including the use of cetane additives (ignition improvers) and oxygenated compounds.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: August 22, 2006
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Hiramie T. McAdams, Robert W. Crawford, Gerald R. Hadder, Barry D. McNutt
  • Patent number: 7018524
    Abstract: Reformulated diesel fuels for automotive diesel engines which meet the requirements of ASTM 975-02 and provide significantly reduced emissions of nitrogen oxides (NOx) and particulate matter (PM) relative to commercially available diesel fuels.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: March 28, 2006
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Hiramie T. McAdams, Robert W. Crawford, Gerald R. Hadder, Barry D. McNutt
  • Patent number: 6761862
    Abstract: The method of determining the extent to which a nickel structure has been attacked by a halogen containing gas to which it has been exposed which comprises preparing a quantity of water substantially free from dissolved oxygen, passing ammonia gas through a cuprammonium solution to produce ammonia substantially free from oxygen, dissolving said oxygen-free ammonia in said water to produce a saturated aqueous ammonia solution free from uncombined oxygen, treating at least a portion of said nickel structure of predetermined weight with said solution to dissolve nickel compounds from the surface of said structure without dissolving an appreciable amount of said nickel and analyzing the resulting solution to determine the quantity of said nickel compounds that was associated with said said portion of said structure to determine the proportion of combined nickel in said nickel structure.
    Type: Grant
    Filed: September 24, 1945
    Date of Patent: July 13, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: James P. Brusie
  • Patent number: 6724196
    Abstract: A temperature controlled high voltage regulator for automatically adjusting the high voltage applied to a radiation detector is described. The regulator is a solid state device that is independent of the attached radiation detector, enabling the regulator to be used by various models of radiation detectors, such as gas flow proportional radiation detectors.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: April 20, 2004
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Peter J. Chiaro, Jr., Gerald K. Schulze
  • Patent number: 6706089
    Abstract: The invention relates to a method and apparatus for separating toxic compounds from gaseous mixtures, and more particularly to a method and a portable apparatus for the continuous removal of fluorine and compounds thereof from gaseous mixtures.
    Type: Grant
    Filed: February 27, 1948
    Date of Patent: March 16, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Ralph Landau
  • Patent number: 6701789
    Abstract: A vacuum gauging system of the cold cathode type is provided for measuring the pressure of a plurality of separate vacuum systems, such as in a gas centrifuge cascade. Each casing is fitted with a gauge tube assembly which communicates with the vacuum system in the centrifuge casing. Each gauge tube contains an anode which may be in the form of a slender rod or wire hoop and a cathode which may be formed by the wall of the gauge tube. The tube is provided with an insulated high voltage connector to the anode which has a terminal for external connection outside the vacuum casing. The tube extends from the casing so that a portable magnet assembly may be inserted about the tube to provide a magnetic field in the area between the anode and cathode necessary for pressure measurements in a cold cathode-type vacuum gauge arrangement. The portable magnetic assembly is provided with a connector which engages the external high voltage terminal for providing power to the anode within in the gauge tube.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: March 9, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Edward C. Denny
  • Patent number: 6697448
    Abstract: This disclosure describes a method for metallurgically bonding a complete leak-tight enclosure to a matrix-type fuel element penetrated longitudinally by a multiplicity of coolant channels. Coolant tubes containing solid filler pins are disposed in the coolant channels. A leak-tight metal enclosure is then formed about the entire assembly of fuel matrix, coolant tubes and pins. The completely enclosed and sealed assembly is exposed to a high temperature and pressure gas environment to effect a metallurgical bond between all contacting surfaces therein. The ends of the assembly are then machined away to expose the pin ends which are chemically leached from the coolant tubes to leave the coolant tubes with internal coolant passageways. The invention described herein was made in the course of, or under, a contract with the U.S. Atomic Energy Commission.
    Type: Grant
    Filed: November 16, 1966
    Date of Patent: February 24, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: George Korton
  • Patent number: 6566561
    Abstract: The invention relates to a class of phenoxy fluoro-alcohols, their preparation, and their use as phase modifiers and solvating agents in a solvent composition for the extraction of cesium from alkaline solutions. These phenoxy fluoro-alcohols comply with the formula: in which n=2 to 4; X represents a hydrogen or a fluorine atom, and R2-R6 are hydrogen or alkyl substituents. These phenoxy fluoro-alcohol phase modifiers are a necessary component to a robust solvent composition and process useful for the removal of radioactive cesium from alkaline nuclear waste streams. The fluoro-alcohols can also be used in solvents designed to extract other cesium from acidic or neutral solutions.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: May 20, 2003
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Peter V. Bonnesen, Bruce A. Moyer, Richard A. Sachleben
  • Patent number: 6562203
    Abstract: The present invention is directed to an improved mechanism for use in electrochemical machining cells for maintaining an essentially constant and uniform electrolyte flow gap around the tool during displacement of the tool into a workpiece to be electrochemically machined. The mechanism of the present invention is particularly adapted for use with tools having configured surfaces such as tapered sidewalls which would form gaps of nonuniform size with the workpiece during machining which would result in nonuniform flow of electrolyte and other deleterious operating conditions. The mechanism of the present invention is a movable plate arrangement disposed contiguous to the tool to provide an essentially constant and uniform-sized gap thereabout.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: May 13, 2003
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jonathan S. Bullock, IV, Joseph T. Fisher, James D. Hensley
  • Patent number: 6422002
    Abstract: A method for non-thermal plasma aftertreatment of exhaust gases the method comprising the steps of providing short risetime, high frequency, high power bursts of low-duty factor microwaves sufficient to generate a plasma discharge and passing a gas to be treated through the discharge so as to cause dissociative reduction of the exhaust gases and enhanced catalyst reactivity through application of the pulsed microwave fields directly to the catalyst material sufficient to cause a polarizability catastrophe and enhanced heating of the metal crystallite particles of the catalyst, and in the presence or absence of the plasma. The invention also includes a reactor for aftertreatment of exhaust gases.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 23, 2002
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John H. Whealton, Gregory R. Hanson, John M. Storey, Richard J. Raridon, Jeffrey S. Armfield, Timothy S. Bigelow, Ronald L. Graves
  • Patent number: 6234014
    Abstract: The method of measuring the mixing efficiency in porous tubes comprising generating gas waves the composition of which at substantially constant total flow rate and pressure varies sinusoidal with time, causing said gas waves to flow through a section of said tubing from inlet to outlet, periodically sampling the gas waves in said tubing at a first point at the peak amplitude of the concentration of a first gas, sampling said waves at a second point at the peak amplitude of the concentration of a first gas, measuring the concentration of said first gas in said mixture in both said samples, and deriving and recording the difference in said concentration for each sampled wave, the difference of said concentrations at said peak amplitudes being a measure of the mixing efficiencies of said tube.
    Type: Grant
    Filed: November 22, 1955
    Date of Patent: May 22, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John J. Keyes, George A. Kuipers, DeForest F. Smith
  • Patent number: 6212250
    Abstract: A method for providing a leak-tight metal enclosure to a fuel matrix penetrated by coolant channels, wherein the mutually contacting surfaces of said metal enclosure and said fuel matrix are metallurgically bonded, comprising placing a metal cladding about the lateral surface of said fuel matrix; disposing metal coolant tubes within said coolant channels; placing a perforated header plate having tubular extensions at each end of the fuel matrix from which the coolant tube ends protrude, said coolant tubes passing through said perforated header plate and said tubular extensions and terminating even with the ends of said extensions; welding, under vacuum, said cladding to said header plates, and the ends of said coolant tubes to the ends of said tubular extensions; exposing the assembly comprising the fuel matrix and enclosure to a gas at high temperature and pressure; and machining said header plates to provide a finished fuel element.
    Type: Grant
    Filed: July 13, 1965
    Date of Patent: April 3, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: George Korton, Cyril C. Hussey
  • Patent number: 6190507
    Abstract: A method for non-thermal plasma aftertreatment of exhaust gases the method comprising the steps of providing short risetime (about 40 ps), high frequency (about 5G hz), high power bursts of low-duty factor microwaves sufficient to generate a dielectric barrier discharge and passing a gas to treated through the discharge so as to cause dissociative reduction of the exhaust gases. The invention also includes a reactor for generating the non-thermal plasma.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: February 20, 2001
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: John H. Whealton, Gregory R. Hanson, John M. Storey, Richard J. Raridon, Jeffrey S. Armfield, Timothy S. Bigelow, Ronald L. Graves
  • Patent number: 6189857
    Abstract: A fluid-actuated squeeze valve is provided for use where leak-tight operation and/or very rapid valve closure characteristics are required. The valve comprises an annular valve body with a generally cylindrical open-ended bore for receiving the frusto-conical end portions of two, axially aligned, opposed end plugs. An annular clearance is provided between the end portions and the bore wall for receiving an elastomeric sleeve. Each end plug is provided with an axially extending bore for passage of process fluid which communicates with angled passageways extending from the bore to the slant surface of a respective frusto-conical end portion. The smaller truncated end surfaces of the two opposed end portions are spaced apart axially to define a narrow gap therebetween. Fluid pressure is exerted through an access port in the valve body to actuate the valve by causing the elastomeric sleeve to press against the end portions. Means for operating the valve in response to system pressure parameters are described.
    Type: Grant
    Filed: April 13, 1971
    Date of Patent: February 20, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Leroy Zeger, Edward R. Promin
  • Patent number: 6174493
    Abstract: Porous articles consisting virtually entirely of beryllium metal are prepared by using iodine as a fugitive pore former. An admixture of beryllium powder and crystalline iodine is pressed into a compact and then heated in vacuum at a temperature of about 100° C. to sublime the iodine. The compact is thereafter sintered at a temperature of about 1000° C.
    Type: Grant
    Filed: December 6, 1967
    Date of Patent: January 16, 2001
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Joseph J. Asbury
  • Patent number: 6110855
    Abstract: A process for strengthening aluminum based ceramics is provided. A gaseous atmosphere consisting essentially of silicon monoxide gas is formed by exposing a source of silicon to an atmosphere consisting essentially of hydrogen and a sufficient amount of water vapor. The aluminum based ceramic is exposed to the gaseous silicon monoxide atmosphere for a period of time and at a temperature sufficient to produce a continuous, stable silicon-containing film on the surface of the aluminum based ceramic that increases the strength of the ceramic.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: August 29, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Arthur J. Moorhead, Hyoun-Ee Kim
  • Patent number: 6081574
    Abstract: A pyrolytic carbon coated nuclear fuel particle and method of making it. The fuel particle has a core composed of a refractory compound of an actinide metal. The pyrolytic carbon coating surrounds the core so as to provide a void volume therebetween. The coating has an initial density of no greater than 1.45 grams/cm.sup.3 and an anisotropy factor than 3.0 and a final density upon heat treatment above about 2000.degree. C. of greater than 1.7 grams/cm.sup.3 and an anisotropy factor greater than 5.
    Type: Grant
    Filed: February 3, 1965
    Date of Patent: June 27, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Ronald L. Beatty, Jackie L. Cook
  • Patent number: 5997802
    Abstract: A sintered metal ceramic crucible suitable for high temperature induction melting of reactive metals without appreciable carbon or silicon contamination of the melt. The crucible comprises a cast matrix of a thermally conductive ceramic material; a perforated metal sleeve, which serves as a susceptor for induction heating of the crucible, embedded within the ceramic cast matrix; and a thermal-shock-absorber barrier interposed between the metal sleeve and the ceramic cast matrix to allow for differential thermal expansions between the matrix and the metal sleeve and to act as a thermal-shock-absorber which moderates the effects of rapid changes of sleeve temperature on the matrix.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: December 7, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Cressie E. Holcombe, Jr., James O. Kiggans, Jr., S. Marvin Morrow, Donald Rexford
  • Patent number: 5885326
    Abstract: A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: March 23, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: James M. Leitnaker, Lee D. Trowbridge
  • Patent number: 5862449
    Abstract: A photocatalytic reactor for processing selected reactants from a fluid medium comprising at least one permeable photocatalytic membrane having a photocatalytic material. The material forms an area of chemically active sites when illuminated by light at selected wavelengths. When the fluid medium is passed through the illuminated membrane, the reactants are processed at these sites separating the processed fluid from the unprocessed fluid. A light source is provided and a light transmitting means, including an optical fiber, for transmitting light from the light source to the membrane.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: January 19, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Brian L. Bischoff, Douglas E. Fain, John A. D. Stockdale