Patents Represented by Attorney Jane M. Binkowski

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  • Microporous insulating barrier system for electrode boiler output control
    Patent number: 4260874
    Abstract: A pair of boiler electrodes defines a volume therebetween to be filled with electrolyte to be heated by electrical current passage between the electrodes through the electrolyte. A microporous insulating barrier permeable to the electrolyte is disposed between the electrodes to limit current flow in the electrical current path between the electrodes to a level within the maximum allowable range of the electrode material, the barrier being spaced from the surface of the electrodes at least sufficiently to prevent concentration of current on the electrode surfaces. The barrier includes channels in the vertical direction to accommodate steam removal from the electrolyte.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: April 7, 1981
    Assignee: General Electric Company
    Inventor: Fritz G. Will
  • Process for producing a composite of polycrystalline diamond and/or cubic boron nitride body and substrate phases
    Patent number: 4247304
    Abstract: A shaped confined structure composed of a mass of diamond and/or cubic boron nitride crystals coated with elemental non-diamond carbon in contact with a carbonaceous substrate is infiltrated by fluid silicon producing a like-shaped composite of a polycrystalline body phase integrally bonded to a substrate supporting phase.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: January 27, 1981
    Assignee: General Electric Company
    Inventor: Charles R. Morelock
  • Alumina shell molds used for investment casting in directional solidification of eutectic superalloys
    Patent number: 4247333
    Abstract: An alumina investment casting mold has a microstructure characterized by the porous nature of the interconnecting alumina grains which is indicative of alumina-silica molds fired in a reducing atmosphere to remove the silica.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: January 27, 1981
    Assignee: General Electric Company
    Inventors: Glenn W. Ledder, Wayne D. Pasco, Paul S. Svec
  • Method for firing low density graphite/alumina compacts and cores
    Patent number: 4246215
    Abstract: A method of firing alumina-based ceramic core compacts includes firing the compact in a controlled atmosphere in a closed retort whereby at least a portion of the gas of the controlled atmosphere is caused to flow down, around and through the porous compact by aspiration.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: January 20, 1981
    Assignee: General Electric Company
    Inventors: Wayne D. Pasco, Frederic J. Klug, Marcus P. Borom
  • Process for electrolyte structure with strontium titanate matrix for molten carbonate fuel cells
    Patent number: 4242426
    Abstract: An electrolyte structure is produced composed of an electrolyte and a matrix of strontium titanate.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: December 30, 1980
    Assignee: General Electric Company
    Inventor: Ronald H. Arendt
  • Composite of polycrystalline diamond and/or cubic boron nitride body/silicon carbide substrate
    Patent number: 4242106
    Abstract: A shaped confined structure composed of a mass of diamond and/or cubic boron nitride crystals coated with elemental non-diamond carbon in contact with a supporting silicon carbide substrate is infiltrated by fluid silicon producing a like-shaped composite of a polycrystalline body component integrally bonded to the supporting silicon carbide substrate.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: December 30, 1980
    Assignee: General Electric Company
    Inventor: Charles R. Morelock
  • Polycrystalline diamond body/silicon carbide substrate composite
    Patent number: 4241135
    Abstract: A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon carbide ceramic substrate are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents sufficient to dimensionally stabilize the container and its contents. The resulting shaped substantially isostatic system of powder-enveloped container is hot-pressed whereby fluid eutectiferous silicon-rich alloy is produced and infiltrated through the interstices between the diamond crystals and contacts the contacting face of the silicon carbide substrate sufficiently producing, upon cooling, an adherently bonded integral composite.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: December 23, 1980
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Lawrence E. Szala, Robert C. DeVries
  • Method for minimizing the formation of a metal-ceramic layer during casting of superalloy materials
    Patent number: 4240828
    Abstract: A method for minimizing the formation of a reaction layer at the metal-ceramic interface comprises doping a superalloy material with the rare earth metal whose metal cation is in the ceramic material comprising the mold and/or core used in casting and directionally solidifying the superalloy material.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: December 23, 1980
    Assignee: General Electric Company
    Inventor: Irvin C. Huseby
  • Bone implant embodying a composite high and low density fired ceramic construction
    Patent number: 4237559
    Abstract: A composite high and low density fired ceramic article is employed as a bone implant. High density ceramic material forms the core or structural member of the composite. An integral inner portion of ceramic material having interconnected porosity encourages the growth of new bone marrow. An integral outer portion of porous ceramic material provides a means for bone and tissue attachment.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: December 9, 1980
    Assignee: General Electric Company
    Inventor: Marcus P. Borom
  • Polycrystalline diamond body/silicon nitride substrate composite
    Patent number: 4234661
    Abstract: A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon nitride ceramic substrate are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents sufficient to dimensionally stabilize the container and its contents. The resulting shaped substantially isostatic system of powder-enveloped container is hot-pressed whereby fluid eutectiferous silicon-rich alloy is produced and infiltrated through the interstices between the diamond crystals and contacts the contacting face of the silicon nitride substrate sufficiently producing, upon cooling, an adherently bonded integral composite.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: November 18, 1980
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Lawrence E. Szala, Robert C. DeVries
  • Molten salt synthesis of orthorhombic lead metaniobate powder
    Patent number: 4234558
    Abstract: A mixture of lead oxide, niobium pentoxide and an alkali chloride salt solvent is heated to melt the chloride salt solvent in which the lead oxide and niobium pentoxide dissolve and react precipitating orthorhombic lead metaniobate.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: November 18, 1980
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Molten salt synthesis of alkali niobate powders
    Patent number: 4234557
    Abstract: A mixture of niobium pentoxide, an oxide of an alkali selected from the group consisting of sodium, potassium, lithium and mixtures thereof, and an alkali chloride salt solvent is heated to melt the chloride salt solvent in which the niobium oxide and alkali oxide dissolve and react precipitating the alkali niobate.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: November 18, 1980
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Molten salt synthesis of modified alkali niobate powders
    Patent number: 4234436
    Abstract: A mixture of niobium pentoxide, an oxide of sodium or potassium, an oxide of lead or cadmium, and an alkali chloride salt solvent is heated to melt the chloride salt solvent in which all of the oxides dissolve and react precipitating modified alkali niobate.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: November 18, 1980
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Molten salt synthesis of barium and/or strontium titanate powder
    Patent number: 4233282
    Abstract: A particulate mixture of an alkali chloride solvent salt, titanium oxide and an alkaline earth reactant selected from the group consisting of barium oxide, strontium oxide, and mixtures thereof, is heated to melt the chloride salt solvent in which the titanium oxide and alkaline earth reactant dissolve and react precipitating a titanate selected from the group consisting of barium titanate, strontium titanate and mixtures thereof.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: November 11, 1980
    Assignee: General Electric Company
    Inventor: Ronald H. Arendt
  • Polycrystalline diamond body and process
    Patent number: 4231195
    Abstract: An adherently bonded polycrystalline diamond body is produced by forming a charge composed of a mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy wherein the alloy is in contact or in association with hexagonal boron nitride, confining such charge within a reaction chamber, subjecting the confined charge to a pressure of at least 25 kilobars, heating the pressure-maintained charge to a temperature sufficient to melt the alloy and at which no significant graphitization of the diamond occurs whereby the alloy infiltrates through the interstices between the diamond crystals producing said body.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: November 4, 1980
    Assignee: General Electric Company
    Inventors: Robert C. DeVries, Minyoung Lee, Lawrence E. Szala, Roy E. Tuft
  • Dressing and conditioning resin-bonded diamond grinding wheel
    Patent number: 4226055
    Abstract: A method comprising contacting a wetting liquid with the surface of a resin-bonded diamond grinding wheel, wetting and forming a film on the face of the resin component of the wheel surface, and grinding and resulting wetted wheel surface with a silicon carbide or silicon nitride ceramic body generating ceramic chips which adhere to said wetted resin face forming a slurry layer thereon which simultaneously dresses and conditions said wheel during grinding.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: October 7, 1980
    Assignee: General Electric Company
    Inventors: Rangachary Komanduri, William R. Reed, Jr.
  • Sintering of silicon nitride using Be additive
    Patent number: 4225356
    Abstract: A particulate dispersion of silicon nitride and beryllium additive is formed into a green body and sintered at a temperature ranging from about 1900.degree. C. to about 2200.degree. C. in a sintering atmosphere of nitrogen at superatmospheric pressure producing a sintered body with a density ranging from about 80% to about 100%.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: September 30, 1980
    Assignee: General Electric Company
    Inventors: Svante Prochazka, Charles D. Greskovich, Richard J. Charles, Robert A. Giddings
  • Polycrystalline diamond and/or cubic boron nitride body and process for making said body
    Patent number: 4220455
    Abstract: A shaped confined mass of diamond and/or cubic boron nitride crystals coated with elemental non-diamond carbon, under a partial vacuum, is infiltrated by fluid silicon producing a like-shaped product wherein the crystals are bonded together by a medium comprised of silicon carbide and elemental silicon.
    Type: Grant
    Filed: October 24, 1978
    Date of Patent: September 2, 1980
    Assignee: General Electric Company
    Inventors: Philippe D. St. Pierre, Charles R. Morelock, John D. Birle
  • Process of making electrolyte structure for molten carbonate fuel cells
    Patent number: 4216278
    Abstract: An electrolyte structure is produced by forming matrix material powder into a blank at room temperature and impregnating the resulting matrix blank with molten electrolyte.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: August 5, 1980
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Composite of bonded cubic boron nitride crystals on a silicon carbide substrate
    Patent number: RE30503
    Abstract: A mass of cubic boron nitride (CBN) crystals, aluminum or aluminum alloy and a silicon carbide ceramic substrate are disposed in a container which is placed within a pressure-transmitting powder medium. Pressure ranging from about 20,000 psi to about 200,000 psi is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents. To the resulting shaped substantially-isostatic system of powder-enveloped container, heat and pressure are applied simultaneously whereby the aluminum or aluminum alloy is liquefied and infiltrated through the interstices between the CBN crystals and diffused into the contacting face of the silicon carbide substrate sufficiently to produce, upon cooling, an adherently bonded integral composite.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: February 3, 1981
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Lawrence E. Szala