Patents Represented by Attorney, Agent or Law Firm J. Kenneth Davis
  • Patent number: 6811745
    Abstract: A method to produce annular-shaped, metal-clad cermet components directly produces the form and avoids multiple fabrication steps such as rolling and welding. The method includes the steps of: providing an annular hollow form with inner and outer side walls; filling the form with a particulate mixture of ceramic and metal; closing, evacuating, and hermetically sealing the form; heating the form to an appropriate temperature; and applying force to consolidate the particulate mixture into solid cermet.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: November 2, 2004
    Assignee: UT-Battelle, LLC
    Inventors: Charles W. Forsberg, Vinod K. Sikka
  • Patent number: 6797030
    Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: September 28, 2004
    Assignee: UT-Battelle, LLC
    Inventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger
  • Patent number: 6790253
    Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: September 14, 2004
    Assignee: UT-Battelle, LLC
    Inventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger
  • Patent number: 6610414
    Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 26, 2003
    Assignee: UT-Battelle, LLC
    Inventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger
  • Patent number: 6468591
    Abstract: Buffer layer architectures are epitaxially deposited on biaxially-textured rolled-Ni and/or Cu substrates for high current conductors, and more particularly buffer layer architectures such as MgO/Ag/Pt/Ni, MgO/Ag/Pd/Ni, MgO/Ag/Ni, MgO/Ag/Pd/Cu, MgO/Ag/Pt/Cu, and MgO/Ag/Cu. Techniques used to deposit these buffer layers include electron beam evaporation, thermal evaporation, rf magnetron sputtering, pulsed laser deposition, metal-organic chemical vapor deposition (MOCVD), combustion CVD, and spray pyrolysis.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: October 22, 2002
    Assignee: UT-Battelle, LLC
    Inventors: Mariappan Paranthaman, Amit Goyal, Donald M. Kroeger, Frederic A. List, III
  • Patent number: 6452168
    Abstract: A continuous beam Fourier transform mass spectrometer in which a sample of ions to be analyzed is trapped in a trapping field, and the ions in the range of the mass-to-charge ratios to be analyzed are excited at their characteristic frequencies of motion by a continuous excitation signal. The excited ions in resonant motions generate real or image currents continuously which can be detected and processed to provide a mass spectrum.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: September 17, 2002
    Assignee: UT-Battelle, LLC
    Inventors: Scott A. McLuckey, Douglas E. Goeringer
  • Patent number: 6447714
    Abstract: A method of preparing a biaxially textured alloy article comprises the steps of preparing a mixture comprising Ni powder and at least one powder selected from the group consisting of Cr, W, V, Mo, Cu, Al, Ce, YSZ, Y, Rare Earths, (RE), MgO, CeO2, and Y2O3; compacting the mixture, followed by heat treating and rapidly recrystallizing to produce a biaxial texture on the article. In some embodiments the alloy article further comprises electromagnetic or electro-optical devices and possesses superconducting properties.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: September 10, 2002
    Assignee: UT-Battelle, LLC
    Inventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger
  • Patent number: 6336366
    Abstract: Methods and apparatus for detecting particular frequencies of acoustic vibration utilize a piezoelectrically-tunable beam element having a piezoelectric layer and a stress sensitive layer and means for providing an electrical potential across the piezoelectric layer to controllably change the beam's stiffness and thereby change its resonance frequency. It is then determined from the response of the piezoelectrically-tunable beam element to the acoustical vibration to which the beam element is exposed whether or not a particular frequency or frequencies of acoustic vibration are detected.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: January 8, 2002
    Assignee: UT-Battelle, LLC
    Inventors: Thomas G. Thundat, Eric A. Wachter
  • Patent number: 6331199
    Abstract: A biaxially textured alloy article comprises Ni powder and at least one powder selected from the group consisting of Cr, W, V, Mo, Cu, Al, Ce, YSZ, Y, Rare Earths, (RE), MgO, CeO2, and Y2O3; compacted and heat treated, then rapidly recrystallized to produce a biaxial texture on the article. In some embodiments the alloy article further comprises electromagnetic or electro-optical devices and possesses superconducting properties.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: December 18, 2001
    Assignee: UT-Battelle, LLC
    Inventors: Amit Goyal, Robert K. Williams
  • Patent number: 6261704
    Abstract: Buffer layer architectures are epitaxially deposited on biaxially-textured rolled-Ni and/or Cu substrates for high current conductors, and more particularly buffer layer architectures such as MgO/Ag/Pt/Ni, MgO/Ag/Pd/Ni, MgO/Ag/Ni, MgO/Ag/Pd/Cu, MgO/Ag/Pt/Cu, and MgO/Ag/Cu. Techniques used to deposit these buffer layers include electron beam evaporation, thermal evaporation, rf magnetron sputtering, pulsed laser deposition, metal-organic chemical vapor deposition (MOCVD), combustion CVD, and spray pyrolysis.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: July 17, 2001
    Assignee: UT-Battelle, LLC
    Inventors: Mariappan Paranthaman, Amit Goyal, Donald M. Kroeger, Frederic A. List, III
  • Patent number: 6180570
    Abstract: A method of preparing a biaxially textured article comprises the steps of providing a metal preform, coating or laminating the preform with a metal layer, deforming the layer to a sufficient degree, and rapidly recrystallizing the layer to produce a biaxial texture. A superconducting epitaxial layer may then be deposited on the biaxial texture. In some embodiments the article further comprises buffer layers, electromagnetic devices or electro-optical devices.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: January 30, 2001
    Assignee: UT-Battelle, LLC
    Inventor: Amit Goyal
  • Patent number: 6179953
    Abstract: A method for making electronic circuit component having improved mechanical properties and thermal conductivity comprises steps of providing NiAl and/or Ni3Al, and forming an alumina layer thereupon prior to applying the conductive elements. Additional layers of copper-aluminum alloy or copper further improve mechanical strength and thermal conductivity.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 30, 2001
    Assignee: UT-Battelle, LLC
    Inventors: Seetharama C. Deevi, Vinod K. Sikka
  • Patent number: 6159610
    Abstract: Buffer layer architectures are epitaxially deposited on biaxially-textured rolled substrates of nickel and/or copper and their alloys for high current conductors, and more particularly buffer layer architectures such as Y.sub.2 O.sub.3 /Ni, YSZ/Y.sub.2 O.sub.3 /Ni, RE.sub.2 O.sub.3 /Ni, (RE=Rare Earth), RE.sub.2 O.sub.3 /Y.sub.2 O.sub.3 /Ni, RE.sub.2 O.sub.3 /CeO.sub.2 /Ni, and RE.sub.2 O.sub.3 /YSZ/CeO.sub.2 /Ni, Y.sub.2 O.sub.3 /Cu, YSZ/Y.sub.2 O.sub.3 /Cu, RE.sub.2 O.sub.3 /Cu, RE.sub.2 O.sub.3 /Y.sub.2 O.sub.3 /Cu, RE.sub.2 O.sub.3 /CeO.sub.2 /Cu, and RE.sub.2 O.sub.3 /YSZ/CeO.sub.2 /Cu. Deposition methods include physical vapor deposition techniques which include electron-beam evaporation, rf magnetron sputtering, pulsed laser deposition, thermal evaporation, and solution precursor approaches, which include chemical vapor deposition, combustion CVD, metal-organic decomposition, sol-gel processing, and plasma spray.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: December 12, 2000
    Assignee: UT-Battelle, LLC
    Inventors: Mariappan Paranthaman, Dominic F. Lee, Donald M. Kroeger, Amit Goyal
  • Patent number: 6150034
    Abstract: Buffer layer architectures are epitaxially deposited on biaxially-textured rolled substrates of nickel and/or copper and their alloys for high current conductors, and more particularly buffer layer architectures such as Y.sub.2 O.sub.3 /Ni, YSZ/Y.sub.2 O.sub.3 /Ni, Yb.sub.2 O.sub.3 /Ni, Yb.sub.2 O.sub.3 /Y.sub.2 O.sub.3 /Ni, Yb.sub.2 O.sub.3 /CeO.sub.2 /Ni, RE.sub.2 O.sub.3 /Ni (RE=Rare Earth), and Yb.sub.2 O.sub.3 /YSZ/CeO.sub.2 /Ni, Y.sub.2 O.sub.3 /Cu, YSZ/Y.sub.2 O.sub.3 /Cu, Yb.sub.2 O.sub.3 /Cu, Yb.sub.2 O.sub.3 /Y.sub.2 O.sub.3 /Cu, Yb.sub.2 O.sub.3 /CeO.sub.2 /Cu, RE.sub.2 O.sub.3 /Cu, and Yb.sub.2 O.sub.3 /YSZ/CeO.sub.2 /Cu. Deposition methods include physical vapor deposition techniques which include electron-beam evaporation, rf magnetron sputtering, pulsed laser deposition, thermal evaporation, and solution precursor approach, which includes chemical vapor deposition, combustion CVD, metal-organic decomposition, sol-gel processing, and plasma spray.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: November 21, 2000
    Assignee: UT-Battelle, LLC
    Inventors: Mariappan Paranthaman, Dominic F. Lee, Donald M. Kroeger, Amit Goyal
  • Patent number: 5976471
    Abstract: In an improved ozone decomposing air filter carbon fibers are held together with a carbonized binder in a perforated structure. The structure is made by combining rayon fibers with gelatin, forming the mixture in a mold, freeze-drying, and vacuum baking.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: November 2, 1999
    Assignee: Lockheed Martin Energy Systems, Inc.
    Inventors: Ronald F. Simandl, John D. Brown, LeRoy L. Whinnery, Jr.
  • Patent number: 5965274
    Abstract: An electronic circuit component having improved mechanical properties and thermal conductivity comprises NiAl and/or Ni.sub.3 Al, upon which an alumina layer is formed prior to applying the conductive elements. Additional layers of copper-aluminum alloy or copper further improve mechanical strength and thermal conductivity.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: October 12, 1999
    Assignee: Lockheed Martin Energy Research Corporation
    Inventors: Seetharama C. Deevi, Vinod K. Sikka
  • Patent number: 5925168
    Abstract: A method for separating gases or other fluids involves placing a magnetic field on a monolithic carbon fiber composite sorption material to more preferentially attract certain gases or other fluids to the sorption material to which a magnetic field is applied. This technique may be combined with the known "pressure swing adsorption" technique utilizing the same sorption material.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: July 20, 1999
    Inventors: Roddie R. Judkins, Timothy D. Burchell
  • Patent number: 5918263
    Abstract: Methods and apparatus for detecting the presence of explosives by analyzing a vapor sample from the suspect vicinity utilize at least one microcantilever. Explosive gas molecules which have been adsorbed onto the microcantilever are subsequently heated to cause combustion. Heat, along with momentum transfer from combustion, causes bending and a transient resonance response of the microcantilever which may be detected by a laser diode which is focused on the microcantilever and a photodetector which detects deflection of the reflected laser beam caused by heat-induced deflection and resonance response of the microcantilever.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: June 29, 1999
    Assignee: Lockheed Martin Energy Research Corporation
    Inventor: Thomas G. Thundat
  • Patent number: 5857978
    Abstract: Methods and apparatus for automatically predicting epileptic seizures monitor and analyze brain wave (EEG or MEG) signals. Steps include: acquiring the brain wave data from the patient; digitizing the data; obtaining nonlinear measures of the data via chaotic time series analysis tools; obtaining time serial trends in the nonlinear measures; comparison of the trend to known seizure predictors; and providing notification that a seizure is forthcoming.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: January 12, 1999
    Assignee: Lockheed Martin Energy Systems, Inc.
    Inventors: Lee M. Hively, Ned E. Clapp, C. Stuart Daw, William F. Lawkins
  • Patent number: 5855633
    Abstract: Improved lapping slurries provide for easier and more thorough cleaning of alumina workpieces, as well as inhibit corrosion of the lapping table and provide for easier cleaning of the lapping equipment. The unthickened lapping slurry comprises abrasive grains such as diamond abrasive dispersed in a carrier comprising water, glycerine, and triethanolamine. The thickened lapping slurry comprises abrasive grains such as diamond abrasive dispersed in a carrier comprising water, glycerine, triethanolamine, a water soluble silicate, and acid.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: January 5, 1999
    Assignee: Lockheed Martin Energy Systems, Inc.
    Inventors: Ronald F. Simandl, Victor S. Upchurch, Michael E. Leitten