Patents Assigned to The United States of America as represented by the United States Energy Research and Development Administration
  • Patent number: 4068015
    Abstract: Carbon-coated microspheroids useful as fuels in nuclear reactors are produced with a low percentage of cracked coatings and are imparted increased strength and mechanical stability characteristics by annealing immediately after the carbon coating processes.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: January 10, 1978
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Walter J. Lackey, Jr., John D. Sease
  • Patent number: 4065853
    Abstract: A portable punch and die jig includes a U-shaped jig of predetermined width having a slot of predetermined width in the base thereof extending completely across the width of the jig adapted to fit over the walls of rectangular tubes and a punch and die assembly disposed in a hole extending through the base of the jig communicating with the slot in the base of the jig for punching a hole in the walls of the rectangular tubes at precisely determined locations.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: January 3, 1978
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Edward F. Lewandowski, Petrus A. Anderson
  • Patent number: 4066496
    Abstract: An expansion joint is provided that accommodates dimensional changes occurring during the cooldown and warm-up of large cryogenic devices such as superconducting magnet coils. Flattened tubes containing a refrigerant such as gaseous nitrogen (N.sub.2) are inserted into expansion spaces in the structure. The gaseous N.sub.2 is circulated under pressure and aids in the cooldown process while providing its primary function of accommodating differential thermal contraction and expansion in the structure. After lower temperatures are reached and the greater part of the contraction has occured, the N.sub.2 liquefies then solidifies to provide a completely rigid structure at the cryogenic operating temperatures of the device.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: January 3, 1978
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Robert L. Brown
  • Patent number: 4065602
    Abstract: An electrode system includes a reservoir of liquid-metal reactant, and a wick extending from a submersed location within the reservoir into the molten electrolyte of an electrochemical cell structure. The wick is flooded with the liquid metal and thereby serves as one electrode within the cell. This electrode system has application in high-temperature batteries employing molten alkali metals or their alloys as active material within an electrode submersed within a molten salt electrolyte. It also can be used in electrochemical cells where the purification, separation or electrowinning of liquid metals is accomplished.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: December 27, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Michael F. Roche, Suzan M. Faist, James G. Eberhart, Laurids E. Ross
  • Patent number: 4065351
    Abstract: This invention provides a poloidal divertor for stacking counterstreaming ion beams to provide high intensity colliding beams. To this end, method and apparatus are provided that inject high energy, high velocity, ordered, atomic deuterium and tritium beams into a lower energy, toroidal, thermal equilibrium, neutral, target plasma column that is magnetically confined along an endless magnetic axis in a strong restoring force magnetic field having helical field lines to produce counterstreaming deuteron and triton beams that are received bent, stacked and transported along the endless axis, while a poloidal divertor removes thermal ions and electrons all along the axis to increase the density of the counterstreaming ion beams and the reaction products resulting therefrom. By balancing the stacking and removal, colliding, strong focused particle beams, reaction products and reactions are produced that convert one form of energy into another form of energy.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: December 27, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Daniel L. Jassby, Russell M. Kulsrud
  • Patent number: 4065217
    Abstract: The disclosure relates to a mechanism for releasably locking a nose tip to a vehicle utilizing a pawl and ratchet and pinion arrangement.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: December 27, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: John A. Andersen, Gene R. Harty
  • Patent number: 4065400
    Abstract: High level liquid waste solidification is achieved on a continuous basis by atomizing the liquid waste and introducing the atomized liquid waste into a reaction chamber including a fluidized, heated inert bed to effect calcination of the atomized waste and removal of the calcined waste by overflow removal and by attrition and elutriation from the reaction chamber, and feeding additional inert bed particles to the fluidized bed to maintain the inert bed composition.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: December 27, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: William J. Bjorklund
  • Patent number: 4064025
    Abstract: Separation of isotopes, particularly of carbon or nitrogen, is achieved by the selective photodissociation of an azo compound or a diazoalkane, particularly azomethane or diazomethane.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: December 20, 1977
    Assignee: The United States of America as represented by the United States Energy Research & Development Administration
    Inventor: Hao-Lin Chen
  • Patent number: 4064029
    Abstract: An improved superconducting quantum interference device is made by sputtering a thin film of an alloy of three parts niobium to one part tin in a pattern comprising a closed loop with a narrow region, depositing a thin film of a radiation shield such as copper over the niobium-tin, scribing a narrow line in the copper over the narrow region, exposing the structure at the scribed line to radiation and removing the deposited copper.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: December 20, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Cheng-Teh Wu, Charles M. Falco, Robert T. Kampwirth
  • Patent number: 4064003
    Abstract: The intermediate heat transport system for a sodium-cooled fast breeder reactor includes a device for rapidly draining the sodium therefrom should a sodium-water reaction occur within the system. This device includes a rupturable member in a drain line in the system and means for cutting a large opening therein and for positively removing the sheared-out portion from the opening cut in the rupturable member. According to the preferred embodiment of the invention the rupturable member includes a solid head seated in the end of the drain line having a rim extending peripherally therearound, the rim being clamped against the end of the drain line by a clamp ring having an interior shearing edge, the bottom of the rupturable member being convex and extending into the drain line. Means are provided to draw the rupturable member away from the drain line against the shearing edge to clear the drain line for outflow of sodium therethrough.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: December 20, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Robert G. Newton
  • Patent number: 4063090
    Abstract: In the method of separating isotopes wherein a desired isotope species is selectively deflected out of a beam of mixed isotopes by irradiating the beam with a directed beam of light of narrowly defined frequency which is selectively absorbed by the desired species, the improvement comprising irradiating the deflected beam with light from other light sources whose frequencies are selected to cause the depopulation of any metastable excited states.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Anthony F. Bernhardt
  • Patent number: 4062404
    Abstract: This invention relates to an improved in situ combustion method for the recovery of hydrocarbons from subterranean earth formations containing carbonaceous material. The method is practiced by penetrating the subterranean earth formation with a borehole projecting into the coal bed along a horizontal plane and extending along a plane disposed perpendicular to the plane of maximum permeability. The subterranean earth formation is also penetrated with a plurality of spaced-apart vertical boreholes disposed along a plane spaced from and generally parallel to that of the horizontal borehole. Fractures are then induced at each of the vertical boreholes which project from the vertical boreholes along the plane of maximum permeability and intersect the horizontal borehole. The combustion is initiated at the horizontal borehole and the products of combustion and fluids displaced from the earth formation by the combustion are removed from the subterranean earth formation via the vertical boreholes.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Joseph Pasini, III, Lowell Z. Shuck, William K. Overbey, Jr.
  • Patent number: 4063005
    Abstract: A molten salt electrochemical system for battery applications comprises tetravalent sulfur as the active cathode material with a molten chloroaluminate solvent comprising a mixture of AlCl.sub.3 and MCl having a molar ratio of AlCl.sub.3 /MCl from greater than 50.0/50.0 to 80/20.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Gleb Mamantov, Roberto Marassi
  • Patent number: 4063190
    Abstract: The disclosure relates to a pulsed gas laser comprising an optical resonant cavity, a CO.sub.2 lasing medium, structure for containing the CO.sub.2 lasing medium within the optical cavity and a device for causing a population inversion in the lasing medium, with a novel improvement comprising structure for causing a laser pulse comprising a wavelength in the near 14 .mu.m and near 16 .mu.m range. The structure for cooling the CO.sub.2 lasing medium to less than about -40.degree. C as well is a structure for pumping the maximum inversion of CO.sub.2 molecules within the lasing medium by minimizing the population in the 010 level.
    Type: Grant
    Filed: December 30, 1975
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: John P. Rink
  • Patent number: 4063089
    Abstract: A self-supporting portable field multichannel X-ray chemical analyzer system comprising a lightweight, flexibly connected, remotely locatable, radioisotope-excited sensing probe utilizing a cryogenically-cooled solid state semi-conductor crystal detector for fast in situ non-destructive, qualitative and quantitative analysis of elements in solid, powder, liquid or slurried form, utilizing an X-ray energy dispersive spectrometry technique.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Otto O. M. Gamba
  • Patent number: 4062515
    Abstract: This invention relates to a double-disc gate valve which is compact, comparatively simple to construct, and capable of maintaining high closing pressures on the valve discs with low frictional forces. The valve casing includes axially aligned ports. Mounted in the casing is a sealed chamber which is pivotable transversely of the axis of the ports. The chamber contains the levers for moving the valve discs axially, and an actuator for the levers. When an external drive means pivots the chamber to a position where the discs are between the ports and axially aligned therewith, the actuator for the levers is energized to move the discs into sealing engagement with the ports.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Gerald E. Bobo
  • Patent number: 4061536
    Abstract: A new and improved fuel assembly is formed to minimize the amount of parasitic structural material wherein a plurality of hollow tubular members are juxtaposed to the fuel elements of the assembly. The tubular members may serve as guide tubes for control elements and are secured to a number of longitudinally spaced grid members along the fuel assembly. The grid members include means thereon engaging each of the fuel elements to laterally position the fuel elements in a predetermined array. Openings in the bottom of each hollow member serve as a shock absorber to cushion shock transmitted to the structure when the control elements are rapidly inserted in their corresponding tubular members.
    Type: Grant
    Filed: November 6, 1972
    Date of Patent: December 6, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Robert J. Creagan, Erling Frisch
  • Patent number: 4061921
    Abstract: An infrared laser system and method for isotope separation may comprise a molecular gas laser oscillator to produce a laser beam at a first wavelength, Raman spin flip means for shifting the laser to a second wavelength, a molecular gas laser amplifier to amplify said second wavelength laser beam to high power, and optical means for directing the second wavelength, high power laser beam against a desired isotope for selective excitation thereof in a mixture with other isotopes. The optical means may include a medium which shifts the second wavelength high power laser beam to a third wavelength, high power laser beam at a wavelength coincidental with a corresponding vibrational state of said isotope and which is different from vibrational states of other isotopes in the gas mixture.
    Type: Grant
    Filed: May 2, 1974
    Date of Patent: December 6, 1977
    Assignee: The United States of America as represented by the United States Energy Research & Development Administration
    Inventors: Cyrus D. Cantrell, Robert J. Carbone, Ralph S. Cooper
  • Patent number: 4059439
    Abstract: A nuclear reactor fuel alloy consists essentially of from slightly greater than 7 to about 4 w/o zirconium, balance plutonium, and is characterized in that the alloy is castable and is rollable to thin foils. A preferred embodiment of about 7 w/o zirconium, balance plutonium, has a melting point substantially above the melting point of plutonium, is rollable to foils as thin as 0.0005 inch thick, and is compatible with cladding material when repeatedly cycled to temperatures above 650.degree. C. Neutron reflux densities across a reactor core can be determined with a high-temperature activation-measurement foil which consists of a fuel alloy foil core sandwiched and sealed between two cladding material jackets, the fuel alloy foil core being a 7 w/o zirconium, plutonium foil which is from 0.005 to 0.0005 inch thick.
    Type: Grant
    Filed: March 15, 1974
    Date of Patent: November 22, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventor: Franklin D. McCuaig
  • Patent number: T966004
    Abstract: Operation of a liquid-metal-cooled fast-breeder reactor is enhanced by distributing coolant among the fuel assemblies at such a rate that the strain equivalent limiting temperature of each fuel assembly is closely approached but not exceeded. Further improvement is attained by proportionally allocating less coolant of a total prescribed coolant flow to the outer fuel assemblies of the reactor (yet satisfying the condition that the strain equivalent limiting temperature is not exceeded) whereby additional coolant flow is available for the inner fuel assemblies, thereby further reducing the radial thermal gradient in the coolant immediately above the fuel assemblies, a particular advantage being that the temperature of the upper internal structure of the reactor immediately above the inner zone of the reactor is reduced.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: January 3, 1978
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Mario D. Carelli, Christopher W. Bach