Patents Represented by Attorney Charles T. Watts
  • Patent number: 5523051
    Abstract: Fresh urine to be tested eventually for detection of abuse-type drugs is preserved at room temperature for as long as six months by adding to the urine a small amount of a methanol solution of methyl and propyl parahydroxybenzoic acids.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: June 4, 1996
    Inventor: Jacob J. Gibson
  • Patent number: 5350815
    Abstract: A bare copper conductor is provided with a tenaciously adhering epoxy resin by heating and curing in situ on the conductor a coating of a solution of cycloaliphatic epoxy resin, a hardener, stannous octoate as a catalyst, and a phenolic accelerator.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: September 27, 1994
    Assignee: General Electric Company
    Inventors: Mark Markovitz, William E. Tomak
  • Patent number: 5320687
    Abstract: A high purity martensitic stainless steel alloy containing only critically limited amounts of minor elements including manganese, silicon, tin, phosphorus, aluminum, antimony and arsenic has high strength and toughness and unique resistance to both reversible and irreversible embrittlement.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: June 14, 1994
    Assignee: General Electric Company
    Inventors: Christine M. Kipphut, Joseph J. Pepe, Robin C. Schwant
  • Patent number: 5314984
    Abstract: Low viscosity, solventless, thermosetting resin compositions of bismaleimide resin composition and epoxy resins have unique heat stability and special utility as insulation for electric conductors to be used in the 200.degree.-250.degree. C. temperature range.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: May 24, 1994
    Assignee: General Electric Company
    Inventors: Mark Markovitz, Jeffrey D. Sheaffer
  • Patent number: 4178022
    Abstract: Tapered stainless steel spool pieces are welded to the ends of stainless steel pipe lengths at the factory to provide subassemblies which are then annealed and thereafter in the field are positioned with the larger free ends of opposed spool pieces disposed to receive weld metal uniting the subassemblies while coolant liquid is maintained in contact with the inside surfaces of the spool pieces.
    Type: Grant
    Filed: July 12, 1977
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventor: Rodney E. Hanneman
  • Patent number: 4173551
    Abstract: Aromatic onium salts, such as diaryliodonium salts, have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when used in combination with various cocatalysts such as organic acids and copper salts.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: November 6, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello
  • Patent number: 4171339
    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: April 17, 1978
    Date of Patent: October 16, 1979
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Lawrence E. Szala, Robert C. De Vries
  • Patent number: 4170711
    Abstract: Monomeric and polymeric halogenated organic compounds derived from 2,2',6,6'-tetrabromo-3,3',5,5' -tetraalkyl-4,4'-biphenols are described. The derivatives are useful in their monomeric and polymeric form as flame retardant additives and/or concentrates for normally flammable resinous materials. The thermal stability at elevated temperatures of the brominated biphenol derivatives advantageously benefits polymeric compositions containing the brominated biphenol derivatives especially when the polymeric compositions are molded into three dimensional articles, or formed into films, sheeting or shaped into fibers, laminates or reinforced plastics by conventional techniques.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: October 9, 1979
    Assignee: General Electric Company
    Inventors: Charles M. Orlando, Francois A. Lavallee
  • Patent number: 4168957
    Abstract: A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy 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 producing, upon cooling, an adherently bonded integral body.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: September 25, 1979
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Lawrence E. Szala, Robert C. De Vries
  • Patent number: 4167536
    Abstract: Polymeric compositions containing organosiloxane units, carbonate units and a phenolphthalein nucleus are found to be both thermally processable and possess excellent flame resistance and smoke properties.
    Type: Grant
    Filed: July 21, 1978
    Date of Patent: September 11, 1979
    Assignee: General Electric Company
    Inventor: Arnold Factor
  • Patent number: 4167399
    Abstract: A cavity of predetermined size is formed in a compressed pressure transmitting powder medium, a mass of diamond crystals in contact with a mass of elemental silicon are disposed within the cavity and additional pressure transmitting powder is placed over the cavity and its contents producing a powder-enveloped cavity. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the cavity therein and its contents sufficient to dimensionally stabilize the cavity and its contents. The resulting shaped substantially isostatic system of powder-enveloped diamond and silicon is hot-pressed to liquefy and infiltrate the silicon through the interstices between the diamond crystals producing, upon cooling, an adherently bonded integral body.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: September 11, 1979
    Assignee: General Electric Company
    Inventors: Minyoung Lee, Laurence E. Szala, Robert C. DeVries
  • Patent number: 4165422
    Abstract: New polymers comprising acyl capped quinone-coupled polyphenylene oxides are described. The resulting new polymers have improved color and in combination with styrene resins provide thermoplastic compositions having improved chemical and physical properties.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: August 21, 1979
    Assignee: General Electric Company
    Inventor: Dwain M. White
  • Patent number: 4164424
    Abstract: A core for investment casting directionally solidified eutectic and superalloy material consists of alumina which has a porous microstructure in which the grain morphology is characteristic of grains which have undergone vapor phase transport action.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: August 14, 1979
    Assignee: General Electric Company
    Inventors: Frederic J. Klug, Wayne D. Pasco, Svante Prochazka
  • Patent number: 4163833
    Abstract: There is provided, a method for making cyclic poly-formal substantially free of linear polyformal by agitating a plural phase mixture of an aqueous alkali metal salt solution of bisphenol in contact with methylene halide and a phase transfer catalyst. The cyclic polyformal can be used to make wire coating compositions.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: August 7, 1979
    Assignee: General Electric Company
    Inventor: Donald S. Johnson
  • Patent number: 4163037
    Abstract: Foamable blends are provided of high performance thermoplastic polymers such as polycarbonates, polyesters, etc., and an effective amount of a dihydrooxadiazinone blowing agent. The blends can be melt extruded into pellets and sheet and converted into thermoplastic foam structures in accordance with conventional injection molding techniques.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: July 31, 1979
    Assignee: General Electric Company
    Inventor: George E. Niznik
  • Patent number: 4162918
    Abstract: Less than 3 weight percent of a rare earth metal is employed in doping a directionally solidified eutectic alloy or a superalloy material to minimize the formation of a metal-ceramic reaction layer during casting and solidification thereof.
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: July 31, 1979
    Assignee: General Electric Company
    Inventor: Irvin C. Huseby
  • Patent number: 4163030
    Abstract: This invention is concerned with a new class of polyetheramide-imide phenolic resin blends. More particularly, the invention is concerned with polyetheramide-imide phenolic resin blends which exhibit melt viscosities suitable for solventless-dry powder coating and curing of polyether-imide insulating films on various substrates. The polyetheramide-imide phenolic resin blends are also suitable for the manufacture of filaments, fibers, films, molding compounds, coatings, etc.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: July 31, 1979
    Assignee: General Electric Company
    Inventors: Eugene G. Banucci, Edith M. Boldebuck
  • 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
  • Patent number: 4161469
    Abstract: A blend comprising a polyalkylene terephthalate resin and an organopolysiloxane-polycarbonate block copolymer having improved impact and heat distortion properties. The polymer blends can be molded or formed into films, sheets, fibers, laminates, or other improved molded articles of manufacture including reinforced articles by conventional techniques.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: July 17, 1979
    Assignee: General Electric Company
    Inventors: Donald G. LeGrand, Albert F. Yee
  • Patent number: 4161478
    Abstract: Onium salts of Group VIa elements having an MF.sub.6 -anion, where M is selected from P, As and Sb, have been found to be photo active under ultraviolet light. These onium salts can be employed as cationic photoinitiators when used with a variety of organic resins and cyclic organic compounds.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: July 17, 1979
    Assignee: General Electric Company
    Inventor: James V. Crivello