Patents Represented by Attorney Joseph T. Cohen
  • Patent number: 4368106
    Abstract: Electrically conductive solid, dense feed-through paths for the high-speed low-loss transfer of electrical signals between integrated circuits of a single silicon-on-sapphire body, or between integrated circuits of several silicon-on-sapphire bodies, are provided by an electroforming method.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: January 11, 1983
    Assignee: General Electric Company
    Inventor: Thomas R. Anthony
  • Patent number: 4366089
    Abstract: The life of a calcium-nickel phosphate catalyst used for dehydrogenation purposes can be increased by treating the catalyst with a mixture of air, phenol, water, and isopropylphenol at elevated temperatures.
    Type: Grant
    Filed: May 6, 1981
    Date of Patent: December 28, 1982
    Assignee: General Electric Company
    Inventor: Herman O. Krabbenhoft
  • Patent number: 4366207
    Abstract: Polycarbonate resins, can be stabilized against the adverse influence of UV light by incorporating either directly into the resin or by means of a coating on the surface of the resin, an effective amount of a certain class of cyano stabilizers.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: December 28, 1982
    Assignee: General Electric Company
    Inventor: Blair T. Anthony
  • Patent number: 4361631
    Abstract: Electrode material composed of metal encapsulated substrate particles for making into an electrode for a molten carbonate fuel cell is produced by electroless plating of a metal electrochemically active for the reactions of the cell onto a substrate particle which is non-sintering at the operating temperatures of the cell.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: November 30, 1982
    Assignee: General Electric Company
    Inventors: Charles D. Iacovangelo, Kenneth P. Zarnoch
  • Patent number: 4361542
    Abstract: Zircon, ZrSiO.sub.4, is retrieved from zircon sand comprised of ZrSiO.sub.4 crystals and contaminants including SiO.sub.2 and iron by comminuting an aqueous slurry of the sand with iron means exposing the contaminants, admixing the resulting comminuted sand slurry with concentrated nitric and hydrochloric acids producing ferric chloride in solution thereby removing its iron component, admixing the resulting suspension with a flocculating agent agglomerating the suspended particles, admixing the resulting agglomerated mass with concentrated hydrofluoric acid to dissolve its SiO.sub.2 component, recovering the resulting ZrSiO.sub.4, washing it with water and drying.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: November 30, 1982
    Assignee: General Electric Company
    Inventor: Ronald H. Arendt
  • Patent number: 4360477
    Abstract: Alkanols can be carbonylated with carbon monoxide and oxygen at elevated temperatures in the presence of certain copper salts to form dialkyl carbonates. The invention also covers the carbonylation by recycling of the azeotropic mixture of methanol and the corresponding dimethyl carbonate.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: November 23, 1982
    Assignee: General Electric Company
    Inventors: John E. Hallgren, Gary M. Lucas
  • Patent number: 4356290
    Abstract: Linear, branched, and/or cross-linked block polymers of polyphenylene oxides and aromatic polyformals. These block polymers can be molded, calendered, or extruded as films, sheets, fibers, laminates or other useful articles of manufacture.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: October 26, 1982
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Patent number: 4353755
    Abstract: The yield strength and tensile strength of a duplex stainless steel alloy body are substantially increased and its anisotropy is substantially reduced by heating it until it is completely ferritic or nearly so and then aging it to cause fine austenitic precipitates to form throughout the body.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: October 12, 1982
    Assignee: General Electric Company
    Inventor: Harvey D. Solomon
  • Patent number: 4353953
    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 integrallay bonded to a substrate supporting phase.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: October 12, 1982
    Assignee: General Electric Company
    Inventor: Charles R. Morelock
  • Patent number: 4351966
    Abstract: Bisphenol-A waste stream derived from the reaction of phenol and acetone in the presence of an acidic condensing agent can be treated with a molecular sieve to obtain good yields of phenol present in the effluent stream either in isolated form or as part of the compounds present in the waste stream.
    Type: Grant
    Filed: June 8, 1971
    Date of Patent: September 28, 1982
    Assignee: General Electric Company
    Inventor: John W. Flock
  • Patent number: 4349621
    Abstract: A process for X-ray microlithography useful in the manufacture of microelectronic devices is provided. In the process, a mask in the form of a thin film of a eutectic is interposed between a source of X-rays and a substrate to selectively expose a layer of X-ray sensitive resist situate on the surface of the substrate. After exposure, the resist is developed to yield in the resist a replica of the submicron minimum feature size pattern of the mask.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: September 14, 1982
    Assignee: General Electric Company
    Inventor: Harvey E. Cline
  • Patent number: 4349485
    Abstract: An enhanced catalytic aromatic carbonate process which comprises contacting a phenol, carbon monoxide, an oxidant, a base, the Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum, and a manganese tetradentate redox co-catalyst. The resulting aromatic mono- and/or poly-carbonates are useful in the preparation of polycarbonates or as polycarbonates per se, respectively, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: September 14, 1982
    Assignee: General Electric Company
    Inventor: John E. Hallgren
  • Patent number: 4349486
    Abstract: A monocarbonate transesterification process comprising contacting in the presence of a base, a beta-fluoroaliphatic carbonate and a compound selected from the class consisting of monohydroxy aliphatic alcohols, phenols and ortho-positioned dihydroxy aromatic compounds. The resulting monocarbonates are useful as monocarbonates, per se, or useful in the preparation of polycarbonates which can be molded or formed into films, laminates or reinforced plastics by conventional techniques.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: September 14, 1982
    Assignee: General Electric Company
    Inventors: Daniel J. Brunelle, William E. Smith
  • Patent number: 4347429
    Abstract: An electrode boiler containing an aqueous electrolyte is provided with a pair of spaced electrodes immersed in the electrolyte and connected to an AC power source. Each electrode comprises an electrically conductive metal substrate having adhered to one face thereof a microporous electrochemically active mass comprising a reversible electrode couple covering essentially the entire face and being present in such quantity that at least some of each member of the electrode couple is present at all times during use. The electrodes are arranged with the active masses facing each other and in contact with the electrolyte. The electrode couple consists essentially of a material which is electrochemically reversibly oxidized and reduced in response to alternating current flow therethrough from one electrode to the other; thereby allowing high current density use without promoting corrosion or erosion of the electrodes.
    Type: Grant
    Filed: June 28, 1979
    Date of Patent: August 31, 1982
    Assignee: General Electric Company
    Inventor: Fritz G. Will
  • Patent number: 4346249
    Abstract: Para-isopropenylphenol can be obtained by dehydrogenation of para-isopropylphenol in the presence of a calcium-nickel phosphate catalyst, phenol, and water.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: August 24, 1982
    Assignee: General Electric Company
    Inventor: Herman O. Krabbenhoft
  • Patent number: 4345010
    Abstract: An electrolyte solution consisting essentially of butylated hydroxytoluene in an amount of about 1.5% by weight to less than 4% by weight of a solution of 1,3-dioxolane and a lithium salt is used as an electrolyte in a secondary electrochemical cell wherein the active material of one of the electrodes is lithium metal.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: August 17, 1982
    Assignee: General Electric Company
    Inventor: Paul G. Glugla
  • Patent number: 4341849
    Abstract: Sodium resistant sealing glasses have aluminoborate glass compositions in which glass stability is improved by the incorporation of specific mixtures of modifying alkali earth oxides of calcium oxide, strontium oxide and barium oxide. These modifying alkali earth oxides are present in a total weight percent range from 15 to 40 weight percent of the glass composition.Also disclosed is the employment of the above glasses as seals in sodium-sulfur cells.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: July 27, 1982
    Assignee: General Electric Company
    Inventors: Dong-Sil Park, Manfred W. Breiter, Bruce S. Dunn, Louis Navias
  • Patent number: 4338144
    Abstract: Silicon-iron sheet products having good magnetic properties can be produced from low nitrogen alloy sheet material by heating in a nitrogen-bearing hydrogen atmosphere to a temperature sufficient to effect secondary recrystallization and thereafter heating to a higher temperature in a hydrogen atmosphere to effect removal of residual carbon, nitrogen, and sulfur.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: July 6, 1982
    Assignee: General Electric Company
    Inventor: Howard C. Fiedler
  • Patent number: 4334050
    Abstract: Linear arene polysulfonyl halide coupled block polymers of polyphenylene oxides and aromatic polyformals. These block polymers can be molded, calendered, or extruded as films, sheets, fibers, laminates or other useful articles of manufacture.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: June 8, 1982
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Patent number: 4334165
    Abstract: An electrical commutator having a plurality of spaced apart commutator bars is disclosed. The commutator bars are formed from a composite of an electrically conductive copper portion bonded, for example by brazing or electron beam welding, at an interface to a steel body which is geometrically designed to reduce the bending and longitudinal stiffness of the body, whereby the shear stress at the interface is reduced during operation.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: June 8, 1982
    Assignee: General Electric Company
    Inventor: William G. Moffatt