Patents by Inventor Ronald H. Arendt

Ronald H. Arendt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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 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 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 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
  • 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
  • Molten salt synthesis of lithium meta-aluminate powder
    Patent number: 4201760
    Abstract: A particulate mixture of an alkali chloride solvent salt, a lithium salt reactant selected from the group consisting of lithium hydroxide, lithium nitrate, lithium carbonate and mixtures thereof, and an aluminum salt reactant selected from the group consisting of aluminum hydroxide, alpha-alumina, gamma-alumina and mixtures thereof is heated to melt the chloride salt solvent in which the lithium and aluminum salt reactants dissolve and react precipitating lithium meta-aluminate.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: May 6, 1980
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Molten salt leach for removal of inorganic cores from directionally solidified eutectic alloy structures
    Patent number: 4162173
    Abstract: Cores made of either Y.sub.2 O.sub.3, Y.sub.3 Al.sub.5 O.sub.12, LaAlO.sub.3, MgAl.sub.2 O.sub.4 or Al.sub.2 O.sub.3 are removed from castings of advanced superalloy materials by immersion in a molten salt bath of either Li.sub.3 AlF.sub.6 or a mixture of CaF.sub.2 -NaF.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: July 24, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Marcus P. Borom, Irvin C. Huseby, Frederic J. Klug
  • Coated silicon-iron product and process therefor using calcium formate
    Patent number: 4160708
    Abstract: A relatively thin coat of calcium metaborate is electrolytically-applied from a solution of calcium formate with boric acid directly to the surface of a boron-containing electrical steel and a substantially thicker overcoat of Mg(OH).sub.2 is electrolytically-deposited on the calcium metaborate coating to provide a duplex coating about 0.2 mil thick.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Silicon-iron production and composition and process therefor
    Patent number: 4160705
    Abstract: A boron-containing magnesium hydroxide coating is electrolytically applied to a boron-containing electrical steel through the use of an electrolyte at 90.degree. C. which is an aqueous solution of magnesium formate and magnesium metaborate containing magnesia as a solid second phase and having a pH in the range from 8.0 to 9.0.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Coated silicon-iron product and process therefor using magnesium formate and metaborate
    Patent number: 4160706
    Abstract: A boron-containing electrical steel sheet is provided with an electrolytically-deposited boron-containing Mg(OH).sub.2 primary coating about 0.05 mil thick and a secondary coating of electrolytically-deposited Mg(OH).sub.2 about 0.15 mil thick. Magnesium formate is employed as the water-soluble magnesium salt in preparing the electrolytes.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 10, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Molten salt synthesis of lead zirconate titanate solid solution powder
    Patent number: 4152281
    Abstract: Sodium chloride and/or potassium chloride is added to an aqueous suspension of the oxides of lead, titanium and zirconium and stirred until the suspension converts to a gel which is then heated evaporating the water and melting said chloride in which the oxides dissolve and react precipitating lead zirconate titanate.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: May 1, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Molten salt synthesis of modified lead zirconate titanate solid solution powder
    Patent number: 4152280
    Abstract: Sodium chloride and/or potassium chloride is added to an aqueous suspension of the oxides of lead, titanium, zirconium and cationic modifier and stirred until the suspension converts to a gel which is then heated, evaporating the water and melting said chloride in which the oxides dissolve and react precipitating modified lead zirconium titanate.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: May 1, 1979
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Joseph H. Rosolowski
  • Method for removing Y.sub.2 O.sub.3 or Sm.sub.2 O.sub.3 cores from castings
    Patent number: 4119437
    Abstract: A weakly acid solution of either NH.sub.4 NO.sub.3, NH.sub.4 Cl, NH.sub.4 HSO.sub.4, CH.sub.3 COOH or equimolar CH.sub.3 COOH -- CH.sub.3 COONa is employed to remove cores of either Y.sub.2 O.sub.3 or Sm.sub.2 O.sub.3 from castings of advanced superalloy materials. A molten salt bath may be used thereafter to remove reaction products formed by the reaction of the materials of the core and the metal casting.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: October 10, 1978
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Irvin C. Huseby, Marcus P. Borom
  • Silicon-iron production and composition and process therefor
    Patent number: 4116730
    Abstract: A boron-containing magnesium hydroxide coating is electrolytically applied to a boron-containing electrical steel through the use of an electrolyte at 90.degree. C which is an aqueous solution of magnesium acetate and magnesium metaborate containing magnesia as a solid second phase and having a pH in the range from 8.0 to 9.0.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: September 26, 1978
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Patrick F. Aubourg
  • Coated silicon-iron product and process therefor
    Patent number: 4097343
    Abstract: A boron-containing electrical steel sheet is provided with an electrolytically-deposited boron-containing Mg(OH).sub.2 primary coating about 0.05 mil thick and a secondary coating of electrolytically-deposited Mg(OH).sub.2 about 0.15 mil thick.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: June 27, 1978
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Boron-containing electrical steel having a calcium borate coating and magnesia overcoating, and process therefor
    Patent number: 4096001
    Abstract: A relatively thin coat of calcium metaborate is electrolytically-applied directly to the surface of a boron-containing electrical steel and a substantially thicker overcoat of Mg(OH).sub.2 is electrolytically-deposited on the calcium metaborate coating to provide a duplex coating about 0.2 mil thick.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: June 20, 1978
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Matthew J. Curran
  • Molten salt leach for removal of inorganic cores from directionally solidified eutectic alloy structures
    Patent number: 4082566
    Abstract: Cores made of either Y.sub.2 O.sub.3, Y.sub.3 Al.sub.5 O.sub.12, LaAlO.sub.3, MgAl.sub.2 O.sub.4 or Al.sub.2 O.sub.3 are removed from castings of advanced superalloy materials by immersion in a molten salt bath of either Li.sub.3 AlF.sub.6 or a mixture of CaF.sub.2 -- NaF.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: April 4, 1978
    Assignee: General Electric Company
    Inventors: Ronald H. Arendt, Marcus P. Borom, Irvin C. Huseby, Frederic J. Klug