Patents Represented by Attorney James Magee, Jr.

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  • Corrosion resistant cladding for nuclear fuel rods
    Patent number: 5026516
    Abstract: A nuclear fuel element for use in the core of a nuclear reactor is disclosed having an improved corrosion resistant cladding. The cladding is comprised of zirconium alloys containing in weight percent 0.5 to 2.0 percent tin, or 0.5 to 2.5 percent bismuth, or 0.5 to 2.5 percent bismuth and tin, and about 0.5 to 1.0 percent of a solute composed of a member selected from the group consisting of molybdenum, niobium, tellurium and mixtures thereof, and the balance zirconium. Composite claddings are disclosed having a surface layer of one of the corrosion resistant zirconium alloys metallurgically bonded to a Zircaloy alloy tube. Claddings may contain an inner barrier layer of a moderate purity zirconium metallurgically bonded on the inside surface of the cladding to provide protection from fission products and gaseous impurities generated by the enclosed nuclear fuel.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: June 25, 1991
    Assignee: General Electric Company
    Inventor: Dale F. Taylor
  • Corrosion resistant composite claddings for nuclear fuel rods
    Patent number: 5024809
    Abstract: A nuclear fuel element for use in the core of a nuclear reactor is disclosed having an improved corrosion resistant cladding. The cladding is comprised of zirconium alloys containing in weight percent 0.5 to 2.0 percent tin, or 0.5 to 2.5 percent bismuth, or 0.5 to 2.5 percent bismuth and tin, and about 0.5 to 1.0 percent of a solute composed of a member selected from the group consisting of molybdenum, niobium, tellurium and mixtures thereof, and the balance zirconium. Composite claddings are disclosed having a surface layer of one of the corrosion resistant zirconium alloys metallurgically bonded to a Zircaloy alloy tube. Claddings may contain an inner barrier layer of a moderate purity zirconium metallurgically bonded on the inside surface of the cladding to provide protection from fission products and gaseous impurities generated by the enclosed nuclear fuel.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: June 18, 1991
    Assignee: General Electric Company
    Inventor: Dale F. Taylor
  • Method for producing heat transfer tube with insitu heater
    Patent number: 5022150
    Abstract: An integral transfer tube is produced comprised of a hollow high density ceramic oxide tube having its outer surface wall surrounded by a low density multilayered ceramic oxide shell, and having a heating element comprised of a heating wound portion and two end portions wherein the wound portion is intermediate the tube and the shell, and wherein at least a sufficient amount of the end portions are exposed for electrical attachment.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: June 11, 1991
    Assignee: General Electric Company
    Inventors: Milivoj K. Brun, Marcus P. Boron, Steven A. Miller, Lawrence E. Szala, Paul S. Svec
  • Fiber-containing composite
    Patent number: 5021367
    Abstract: Fibrous material is coated with boron nitride and a silicon-wettable material, the coated fibrous material is admixed with an infiltration-promoting material which is at least partly elemental carbon and the mixture is formed into a preform which is infiltrated with a molten solution of boron and silicon producing a composite containing boron nitride coated fibrous material.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: June 4, 1991
    Assignee: General Electric Company
    Inventors: Raj N. Singh, William A. Morrison
  • Low density high strength alloys of Nb-Ti-Al for use at high temperatures
    Patent number: 5019334
    Abstract: An alloy is provided for use at high temperature. The alloy is a niobium-titanium base alloy and has the following approximate composition.______________________________________ Concentration in atomic percent Ingredient From About To About ______________________________________ Nb balance essentially Ti 31 48 Al 8 21.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: May 28, 1991
    Assignee: General Electric Company
    Inventor: Melvin R. Jackson
  • Method of forming improved tungsten ingots
    Patent number: 5019330
    Abstract: A method of forming tungsten ingots having improved uniformity of density and improved uniformity in distribution of dopant within the ingot is disclosed. Doped tungsten powder is disposed in a cylindrical mold having sealing means at both ends. The powder completely fills a void space within the mold between the sealing means so that there is substantially no settling of the powder. A pressure of about 560 kg/cm.sup.2 is applied uniformly to the outer surface of the mold to form a cylindrical compact. The compact is removed from the mold and resistance sintered to a density of at least about 85 percent of theoretical density to form the ingot.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: May 28, 1991
    Assignee: General Electric Company
    Inventors: Bernard P. Bewlay, James Day
  • Silicon carbide filament reinforced titanium aluminide matrix with reduced cracking tendency
    Patent number: 5017438
    Abstract: A method for forming a composite having a matrix which is stronger and which is resistant to cracking is disclosed. The composite is reinforced by silicon carbide fibers. The silicon carbide fibers are first RF plasma-spray coated with a niobium metal and the matrix metal of titanium base alpha-2 crystal structure is next RF plasma-spray deposited over the niobium coated SiC fibers to form a layer of Ti base metal reinforced by SiC fibers. A plurality of layered structures are consolidated by heat and pressure into a composite structure.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: May 21, 1991
    Assignee: General Electric Company
    Inventors: Paul A. Siemers, Ann M. Ritter
  • Fiber-containing composite
    Patent number: 5015540
    Abstract: Fibrous material is coated with boron nitride and a silicon-wettable material, the coated fibrous material is admixed with an infiltration-promoting material which is at least partly elemental carbon and the mixture is formed into a preform which is infiltrated with molten silicon producing a composite containing boron nitride coated fibrous material.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: May 14, 1991
    Assignee: General Electric Company
    Inventors: Marcus P. Borom, William B. Hillig, Raj N. Singh, William A. Morrison, Leonard V. Interrante
  • Ruthenium aluminum intermetallic compounds
    Patent number: 5011554
    Abstract: Intermetallic compounds of ruthenium and aluminum are disclosed comprising about 40 to 51 atomic percent aluminum and the balance substantially ruthenium. The intermetallic compounds have a high hardness up to about 1150.degree. C. and have good room temperature toughness. Hardness is improved by scandium additions up to about 7 atomic percent. Hardness is improved while maintaining good room temperature toughness by boron additions up to about 1 atomic percent.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: April 30, 1991
    Assignee: General Electric Company
    Inventor: Robert L. Fleischer
  • Molten metal transfer tube
    Patent number: 5011049
    Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having directly bonded to its outer surface wall a low density ceramic oxide shell.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: April 30, 1991
    Assignee: General Electric Company
    Inventors: Marcus P. Borom, Lawrence E. Szala, Milivoj Brun, Steven A. Miller, David P. Mourer
  • Hafnium containing niobium, titanium, aluminum high temperature alloy
    Patent number: 5006307
    Abstract: An alloy having high strength at high temperature is provided. The alloy has the following approximate composition in atom percent:______________________________________ niobium balance titanium 40-48% aluminum 12-22% hafnium 0.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: April 9, 1991
    Assignee: General Electric Company
    Inventor: Melvin R. Jackson
  • Hot shear cutting of amorphous alloy ribbon
    Patent number: 5005456
    Abstract: A method and apparatus for severing a stack of amorphous alloy ribbons in a softened state is disclosed. The method provides a smooth burr-free edge of close dimensional tolerance while preserving the desirable magnetic properties of the alloy. Resistance self-heating is applied to heat a localized portion of the stack to a temperature above the softening temperature of the alloy. Severing occurs adjacent the electrodes in an adjacent stack portion which is heated by diffusion from the directly heated stock portion.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: April 9, 1991
    Assignee: General Electric Company
    Inventors: Donald E. Ballard, Peter G. Frischmann, Alan I. Taub
  • Melt system for spray-forming
    Patent number: 5004153
    Abstract: A method for regulating the flow of liquid metal to an atomization zone is provided. The regulation is effected by imparting a high density flux to a stream of liquid metal as it descends toward the atomization zone. The high density flux is applied by a flux concentrator. The flux concentrator is a small sleeve-like element attached by parallel conductors to a larger sleeve-like element which acts as a secondary to primary coil extended through the larger sleeve element. By imparting high density flux to initiate a stream passing through the flux concentrator the cross sectional dimensions of the melt stream and the rate of flow of melt through the concentrator is regulated to values which are appropriate for a spray-form type of action.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: April 2, 1991
    Assignee: General Electric Company
    Inventor: Thomas F. Sawyer
  • Transfer tube
    Patent number: 5004629
    Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having a low density multi-layered ceramic oxide shell directly bonded to its outer surface wall.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: April 2, 1991
    Assignee: General Electric Company
    Inventors: Paul S. Svec, Marcus P. Borom, Lawrence E. Szala, Milivoj K. Brun, Steven A. Miller, David P. Mourer
  • Ferrite body containing metallization
    Patent number: 5000909
    Abstract: A composite comprised of a sintered matrix of spinel ferrite and a non-exposed continuous phase of elemental silver or Ag-Pd alloy ranging to 25 atomic % Pd is produced by co-firing a laminated structure of ferrite powder-containing tapes containing non-exposed metallization-forming material. The composite can be formed into a composite product which contains a continuous silver or Ag-Pd alloy phase with two end portions wherein only the end portions are exposed.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: March 19, 1991
    Assignee: General Electric Company
    Inventors: Richard J. Charles, Achuta R. Gaddipati
  • Hafnium containing high temperature Nb-Al alloy
    Patent number: 5000913
    Abstract: An alloy is provided having exceptional strength at very high temperatures of 1200.degree. C. and higher.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: March 19, 1991
    Assignee: General Electric Company
    Inventor: Melvin R. Jackson
  • Ferrite body containing metallization
    Patent number: 5001014
    Abstract: A composite comprised of a sintered matrix of spinel ferrite and a non-exposed continuous phase of elemental silver or Ag-Pd alloy ranging to 25 atomic % Pd is produced by co-firing a laminated structure of ferrite powder-containing tapes containing non-exposed metallization-forming material. The composite can be formed into a composite product which contains a continuous silver or Ag-Pd alloy phase with two end portions wherein only the end portions are exposed.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: March 19, 1991
    Assignee: General Electric Company
    Inventors: Richard J. Charles, Achuta R. Gaddipati
  • Dielectric compositions of devitrified glass containing small amounts of lead oxide and iron oxide
    Patent number: 4997795
    Abstract: An improved dielectric formulation for the fabrication of multilayer, integrated circuits which comprises a devitrifying zinc-magnesium-barium-aluminum-zirconium-phosphosilicate glass frit, a devitrifying zinc-magnesium-barium-aluminum-silicate glass frit, or a devitrifying zinc-magnesium-strontium-aluminum-silicate glass frit which are stabilized by the presence of from about 0.01 to about 1 weight percent each of lead oxide and iron oxide.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: March 5, 1991
    Assignee: General Electric Company
    Inventors: Kenneth W. Hang, Ashok N. Prabhu, Wayne M. Anderson
  • Method and apparatus for parting a deck of amorphous alloy ribbons
    Patent number: 4995919
    Abstract: A method and apparatus for parting a deck of amorphous alloy ribbons in one operation is disclosed. Force is applied to a deck of ribbons to place it under tension. A localized zone in the deck is compressed and rapidly heated to the softening temperature of the amorphous alloy. The deck separates along a seam within the zone due to the tensile force and localized rapid heating. A high quality edge is produced where the separated ribbon edges are free of burrs, meltbeads or substantial cracking and chipping.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: February 26, 1991
    Assignee: General Electric Company
    Inventors: Alan I. Taub, Peter G. Frischmann, Minyoung Lee
  • Y-Ba-Cu-O superconductor containing radioactive dopants
    Patent number: 4996192
    Abstract: A polycrystalline Y-Ba-Cu-O superconductor doped with sufficient .sup.235 U and/or .sup.239 Pu atoms is irradiated with thermal neutrons to produce from about 2.5.times.10.sup.14 to about 50.times.10.sup.14 fission events per cubic centimeter of superconductor.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: February 26, 1991
    Assignee: General Electric Company
    Inventor: Robert L. Fleischer