Patents Represented by Attorney Dean E. Carlson

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  • Defect scriber
    Patent number: 4151773
    Abstract: This disclosure describes a device for repeatably scribing a V-shaped scratch having sharply defined dimensions on the interior surface of a nuclear reactor fuel rod tube. A cutting tool having a V-shaped cutting tip is supported within the fuel rod tube so that the V-shaped cutting tip can be pivoted about an axis and scribe a scratch on the interior surface of the fuel rod tube. Lengthwise the scratch runs parallel to a line drawn through the axis of the fuel rod tube and is in the shape of an arc, and widthwise the scratch is V-shaped. This shape is used because the dimensions of the scratch can be plugged into appropriate formulas to calculate stress intensity of cracks in fuel rod tubes. Since the fuel rod tubes which are to be scribed may be radioactive, the scratching assembly is designed for use in a fixture which allows it to be operated in a cave by remote control handling devices.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Harold C. Russell
  • Regenerator for gas turbine engine
    Patent number: 4151873
    Abstract: A rotary disc-type counterflow regenerator for a gas turbine engine includes a disc-shaped ceramic core surrounded by a metal rim which carries a coaxial annular ring gear. Bonding of the metal rim to the ceramic core is accomplished by constructing the metal rim in three integral portions: a driving portion disposed adjacent the ceramic core which carries the ring gear, a bonding portion disposed further away from the ceramic core and which is bonded thereto by elastomeric pads, and a connecting portion connecting the bonding portion to the driving portion. The elastomeric pads are bonded to radially flexible mounts formed as part of the metal rim by circumferential slots in the transition portion and lateral slots extending from one end of the circumferential slots across the bonding portion of the rim.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: John J. Lewakowski
  • Silicon solar cell assembly
    Patent number: 4152175
    Abstract: A silicon solar cell assembly comprising a large, thin silicon solar cell bonded to a metal mount for use when there exists a mismatch in the thermal expansivities of the device and the mount.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Edward L. Burgess, Robert D. Nasby, Donald G. Schueler
  • Rapidly deployable emergency communication system
    Patent number: 4152647
    Abstract: A highly versatile, highly portable emergency communication system which permits deployment in a very short time to cover both wide areas and distant isolated areas depending upon mission requirements. The system employs a plurality of lightweight, fully self-contained repeaters which are deployed within the mission area to provide communication between field teams, and between each field team and a mobile communication control center. Each repeater contains a microcomputer controller, the program for which may be changed from the control center by the transmission of digital data within the audible range (300-3,000 Hz). Repeaters are accessed by portable/mobile transceivers, other repeaters, and the control center through the transmission and recognition of digital data code words in the subaudible range.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Charles A. Gladden, Martin H. Parelman
  • Copper mercaptides as sulfur dioxide indicators
    Patent number: 4152118
    Abstract: 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: Grant
    Filed: June 16, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Phillip G. Eller, Gregory J. Kubas
  • Hydrogenation of coal liquid utilizing a metal carbonyl catalyst
    Patent number: 4152248
    Abstract: Coal liquid having a dissolved transition metal, catalyst as a carbonyl complex such as Co.sub.2 (CO.sub.8) is hydrogenated with hydrogen gas or a hydrogen donor. A dissociating solvent contacts the coal liquid during hydrogenation to form an immiscible liquid mixture at a high carbon monoxide pressure. The dissociating solvent, e.g. ethylene glycol, is of moderate coordinating ability, while sufficiently polar to solvate the transition metal as a complex cation along with a transition metal, carbonyl anion in solution at a decreased carbon monoxide pressure. The carbon monoxide pressure is reduced and the liquids are separated to recover the hydrogenated coal liquid as product. The dissociating solvent with the catalyst in ionized form is recycled to the hydrogenation step at the elevated carbon monoxide pressure for reforming the catalyst complex within fresh coal liquid.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Harold M. Feder, Jerome W. Rathke
  • Method for preparing metallated filament-wound structures
    Patent number: 4152381
    Abstract: Metallated graphite filament-wound structures are prepared by coating a continuous multi-filament carbon yarn with a metal carbide, impregnating the carbide coated yarn with a polymerizable carbon precursor, winding the resulting filament about a mandrel, partially curing the impregnation in air, subjecting the wound composite to heat and pressure to cure the carbon precursor, and thereafter heating the composite in a sizing die at a pressure loading of at least 1000 psi for graphitizing the carbonaceous material in the composite. The carbide in the composite coalesces into rod-like shapes which are disposed in an end-to-end relationship parallel with the filaments to provide resistance to erosion in abrasive laden atmospheres.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: May 1, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: George R. Peterson
  • Distributed electrical leads for thermionic converter
    Patent number: 4151438
    Abstract: In a thermionic converter, means are provided for coupling an electrical lead to at least one of the electrodes thereof. The means include a bus bar and a plurality of distributed leads coupled to the bus bar each of which penetrates through one electrode and are then coupled to the other electrode of the converter in spaced apart relation.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: April 24, 1979
    Assignee: The United States of America as represented by United States Department of Energy
    Inventors: Gary O. Fitzpatrick, Edward J. Britt
  • Solids feeder apparatus
    Patent number: 4150759
    Abstract: This invention sets forth a double-acting piston, which carries a floating piston, and which is reciprocated in a housing, for feeding coal to a high pressure gasifier system. The housing has a plurality of solids (for instance: coal) in-feeding ports and a single discharge port, the latter port being in communication with a high pressure gasifier system. The double-acting piston sequentially and individually communicates each of the in-feeding ports with the discharge port. The floating piston both seals off the discharge port while each in-feeding port is receiving coal or the like, to prevent undue escape of gas from the gasifier system, and translates in the housing, following a discharge of coal or the like into the discharge port, to return gas which has been admitted into the housing back into the gasifier system.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: April 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Harold S. Bell, Jr.
  • Titanium nitride thin films for minimizing multipactoring
    Patent number: 4151325
    Abstract: Applying a thin film coating to the surface of a workpiece, in particular, applying a coating of titanium nitride to a klystron window by means of a crossed-field diode sputtering array. The array is comprised of a cohesive group of numerous small hollow electrically conducting cylinders and is mounted so that the open ends of the cylinders on one side of the group are adjacent a titanium cathode plate. The workpiece is mounted so as to face the open ends of the other side of the group. A magnetic field is applied to the array so as to be coaxial with the cylinders and a potential is applied across the cylinders and the cathode plate, the cylinders as an anode being positive with respect to the cathode plate.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: April 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Kimo M. Welch
  • Solids irradiator
    Patent number: 4151419
    Abstract: A novel facility for irradiation of solids embodying pathogens wherein solids are conveyed through an irradiation chamber in individual containers of an endless conveyor.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: April 24, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Marvin E. Morris, Jim D. Pierce, Willis J. Whitfield
  • Focal-surface detector for heavy ions
    Patent number: 4150290
    Abstract: A detector of the properties of individual charged particles in a beam includes a gridded ionization chamber, a cathode, a plurality of resistive-wire proportional counters, a plurality of anode sections, and means for controlling the composition and pressure of gas in the chamber. Signals generated in response to the passage of charged particles can be processed to identify the energy of the particles, their loss of energy per unit distance in an absorber, and their angle of incidence. In conjunction with a magnetic spectrograph, the signals can be used to identify particles and their state of charge. The detector is especially useful for analyzing beams of heavy ions, defined as ions of atomic mass greater than 10 atomic mass units.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: April 17, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John R. Erskine, Thomas H. Braid, Joseph C. Stoltzfus
  • Solid feeder and method
    Patent number: 4148405
    Abstract: This invention provides a housing containing a rotatable coal bucket that is sealed at its ends in the housing with a reciprocal plunger that is sealed in the bucket at one end and has an opposite cone-shaped end that wedges up against a closed end of the bucket, and a method for feeding dry, variable size coal from an ambient atmosphere at low pressure into a high temperature, high pressure reactor between the seals for producing fuel gas substantially without losing any high pressure gas from the reactor or excessively wearing the seals.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: April 10, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Thomas J. Hathaway
  • Coupling for joining a ball nut to a machine tool carriage
    Patent number: 4148235
    Abstract: The present invention relates to an improved coupling for joining a lead screw ball nut to a machine tool carriage. The ball nut is coupled to the machine tool carriage by a plurality of laterally flexible bolts which function as hinges during the rotation of the lead screw for substantially reducing lateral carriage movement due to wobble in the lead screw.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: April 10, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Howard L. Gerth
  • Method and apparatus for detecting and measuring trace impurities in flowing gases
    Patent number: 4148612
    Abstract: 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: Grant
    Filed: September 7, 1977
    Date of Patent: April 10, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Gene W. Taylor, Edward J. Dowdy
  • Method for forming a thermocouple
    Patent number: 4148134
    Abstract: A method is provided for producing a fast response, insulated junction thermocouple having a uniform diameter outer sheath in the region of the measuring junction. One step is added to the usual thermocouple fabrication process that consists in expanding the thermocouple sheath following the insulation removal step. This makes it possible to swage the sheath back to the original diameter and compact the insulation to the desired high density in the final fabrication step.
    Type: Grant
    Filed: October 12, 1977
    Date of Patent: April 10, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Hugh J. Metz
  • Refractory concretes
    Patent number: 4148663
    Abstract: Novel concrete compositions comprise particles of aggregate material embedded in a cement matrix, said cement matrix produced by contacting an oxide selected from the group of Y.sub.2 O.sub.3, La.sub.2 O.sub.3, Nd.sub.2 O.sub.3, Sm.sub.2 O.sub.3, Eu.sub.2 O.sub.3 and Gd.sub.2 O.sub.3 with an aqueous solution of a salt selected from the group of NH.sub.4 NO.sub.3, NH.sub.4 Cl, YCl.sub.3 and Mg(NO.sub.3).sub.2 to form a fluid mixture; and allowing the fluid mixture to harden.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: April 10, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Cressie E. Holcombe, Jr.
  • Nuclear propulsion apparatus with alternate reactor segments
    Patent number: 4147590
    Abstract: 1. Nuclear propulsion apparatus comprising:A. means for compressing incoming air;B. nuclear fission reactor means for heating said air;C. means for expanding a portion of the heated air to drive said compressing means;D. said nuclear fission reactor means being divided into a plurality of radially extending segments;E. means for directing a portion of the compressed air for heating through alternate segments of said reactor means and another portion of the compressed air for heating through the remaining segments of said reactor means; andF. means for further expanding the heated air from said drive means and the remaining heated air from said reactor means through nozzle means to effect reactive thrust on said apparatus.
    Type: Grant
    Filed: September 1, 1965
    Date of Patent: April 3, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Thomas Szekely
  • Method for forming p-n junctions and solar-cells by laser-beam processing
    Patent number: 4147563
    Abstract: This invention is an improved method for preparing p-n junction devices, such as diodes and solar cells. High-quality junctions are prepared by effecting laser-diffusion of a selected dopant into silicon by means of laser pulses having a wavelength of from about 0.3 to 1.1 .mu.m, an energy area density of from about 1.0 to 2.0 J/cm.sup.2, and a duration of from about 20 to 60 nanoseconds. Initially, the dopant is deposited on the silicon as a superficial layer, preferably one having a thickness in the range of from about 50 to 100 A. Depending on the application, the values for the above-mentioned pulse parameters are selected to produce melting of the silicon to depths in the range from about 1000 A to 1 .mu.m. The invention has been used to produce solar cells having a one-sun conversion efficiency of 10.6%, these cells having no antireflective coating or back-surface fields.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: April 3, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jagdish Narayan, Rosa T. Young
  • Fire resistant nuclear fuel cask
    Patent number: 4147938
    Abstract: The disclosure is directed to a fire resistant nuclear fuel cask employing reversibly thermally expansible bands between adjacent cooling fins such that normal outward flow of heat is not interfered with, but abnormal inward flow of heat is impeded or blocked.
    Type: Grant
    Filed: February 7, 1978
    Date of Patent: April 3, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Richard C. Heckman, Marvin Moss