Patents Examined by Harris A. Pitlick
  • Patent number: 4242218
    Abstract: Stripping solutions, free from phenol compounds, comprising at least 30 weight percent of an unsubstituted or alkyl substituted aryl sulfonic acid have been found effective for removal of organic polymeric substances from inorganic substrates. The novel compositions comprise 30-80 percent of one or more of the sulfonic acids in admixture with chlorinated aryl compounds, alkylaryl compounds having 1-14 alkyl carbons, an isoparaffinic hydrocarbon, or mixtures thereof.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: December 30, 1980
    Assignee: Allied Chemical Corporation
    Inventor: John E. Vander Mey
  • Patent number: 4240917
    Abstract: A transformer is disclosed which comprises a tank comprising a laminated magnetic core and a winding immersed in a fluid which comprises bright stock catalytically hydrogenated to an aromaticity of 5 to 30 percent. This fluid provides inexpensive insulation for transformers without the need for additives to obtain acceptable physical and electrical properties.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: December 23, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Henry A. Pearce, Jr., Edward J. Walsh
  • Patent number: 4239638
    Abstract: Poly-alpha-olefin oils having high flash points useful as heat transfer fluids in solar and industrial applications.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: December 16, 1980
    Assignee: Uniroyal, Inc.
    Inventors: David Beretta, Frederick C. Loveless, Walter Nudenberg
  • Patent number: 4239660
    Abstract: Laundry detergent compositions offering improved removal of particulate and greasy/oily soils, containing mixtures of selected nonionic and hydrolyzable cationic surfactants, together with specifically defined alkalinity sources, are disclosed. This invention permits the formulation of compositions which are alkaline in the laundry solution, and in which hydrolyzable cationic surfactants are stable during long periods of storage.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: December 16, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Gary W. Kingry
  • Patent number: 4239659
    Abstract: Laundry detergent compositions, which are either free of phosphate materials or contain only low levels of such materials, containing a nonionic surfactant, preferably specific alcohol ethoxylate nonionic surfactants, together with selected single long chain (C.sub.20 --C.sub.30) alkyl cationic surfactants, are disclosed. These compositions provide both excellent particulate and greasy/oily soil removal and, additionally, provide fabric softening, static control, color fidelity, and dye transfer inhibition benefits to fabrics laundered therewith. A process for laundering fabrics, using these compositions, is also disclosed.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: December 16, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Alan P. Murphy
  • Patent number: 4238343
    Abstract: A synthetic oil useful as an insulating fluid in electrical apparatus is prepared by reacting an aromatic compound with the oligomers of four to 12 carbon alpha-olefins containing predominantly at least about 30 carbon atoms up to about 60 carbon atoms. A synthetic insulating oil for electrical power transformers is prepared by reacting benzene in a 1:1 molar ratio with a tetramerpentamer mixture obtained by the oligomerization of 1-decene.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: December 9, 1980
    Assignee: Gulf Research & Development Company
    Inventor: John P. Pellegrini, Jr.
  • Patent number: 4237023
    Abstract: Aqueous heat-storage compositions useful in space heating applications are disclosed which contain a phase-change material which absorbs and stores heat as it is heated above its phase-change temperature and releases stored heat as it is cooled below its phase-change temperature. These compositions include fumed silicon dioxide which acts as a stabilizing agent and provides dramatically prolonged heat-storage efficiency for these compositions as they undergo repetitive cycling through their phase-change temperature. Articles containing such compositions and methods of forming such compositions are additionally disclosed.
    Type: Grant
    Filed: March 20, 1979
    Date of Patent: December 2, 1980
    Assignees: Massachusetts Institute of Technology, Cabot Corporation
    Inventors: Timothy E. Johnson, John Giuffrida
  • Patent number: 4235734
    Abstract: A liquid, foamable acid composition is described which comprises a liquid foaming agent (i.e., a surfactant) and an alkanol or an inertly-substituted alkanol dissolved in an aqueous acid. The foamed compositions find utility, for example, in cleaning ferrous surfaces.
    Type: Grant
    Filed: November 30, 1978
    Date of Patent: November 25, 1980
    Assignee: The Dow Chemical Company
    Inventor: Gary A. Scherubel
  • Patent number: 4234439
    Abstract: A dielectric composition for influencing electric fields comprising a dielectric base material having electrically conductive and electrically insulating platelet-shaped particles and stress control devices made therefrom.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: November 18, 1980
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dieter Kehr, Juergen Goebell
  • Patent number: 4233170
    Abstract: A non-flammable hydraulic fluid comprises a water soluble alkylene oxide adduct of a nitrogen-free polyhydric alcohol having at least five hydroxyl groups, water and a glycol.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: November 11, 1980
    Assignee: Sanyo Chemical Industries, Limited
    Inventors: Fumihide Genjida, Toyoaki Nasuno, Hideo Kobayashi, Motohiko Ii
  • Patent number: 4231885
    Abstract: Peat moss is used in a thermal energy storage composition to provide a network in which to trap an incongruently melting salt hydrate capable of storing thermal energy as latent heat of phase change. The peat moss network is effective in preventing the segregation of a dehydrated form of the salt between heating and cooling cycles. In a preferred embodiment that salt hydrate is the decahydrate of sodium sulphate. A nucleating agent such as sodium tetraborate decahydrate is included to prevent supercooling in the composition, and promote crystallization of the decahydrate of sodium sulphate.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: November 4, 1980
    Assignee: Saskatchewan Minerals
    Inventor: Philip G. Rueffel
  • Patent number: 4231884
    Abstract: A water retardant composition comprising a mixture of a low density granular mineral material coated with a water repellant material, and a finally divided limestone or other carbonate or silicate mineral particles also coated with a water repellant material. The low density granular mineral material is preferably selected from the group consisting of expanded perlite, expanded vermiculite, expanded shale and pumice rock. The carbonate or silicate mineral particles are preferably selected from the group consisting of talc, clay, sericite, unexpanded perlite, magnesium silicate and aluminum silicate. Preferably, the low density granular mineral material is coated with a silicone or asphalt, while the limestone or other carbonate or silicate mineral material is preferably coated with a silicone or a salt of stearic acid.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: November 4, 1980
    Assignee: American Gilsonite Company
    Inventor: Carl B. Dorius
  • Patent number: 4230605
    Abstract: The high gloss of vinyl composition floor coverings having a no-wax coating is maintained by using a cleaner consisting essentially of an aqueous emulsion polymerized alkali-soluble terpolymer having an average molecular weight of about 23,000, the terpolymer being an addition polymer based on about 51% by weight methyl methacrylate, 31% by weight butyl acrylate, and 18% by weight acrylic acid; a mixture of 50% by weight of the reaction product of 1 mole of coconut oil to 2 moles diethanolamine and 50% by weight of the reaction product of 1 mole dodecylbenzenesulfonic acid to 1 mole diethanolamine; an organic solvent; an aqueous ammonia solution; and water. Before being used as a cleaner the cleaner is preferably diluted to between about 0.5 to 0.10 percent solids.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: October 28, 1980
    Assignee: Armstrong Cork Company
    Inventors: Arlene D. Connolly, James M. Eshleman, Edgar W. Knaub
  • Patent number: 4230590
    Abstract: Heavy duty detergent compositions, particularly for imparting improved softness and detersive effects to fabrics laundered therewith, said composition including in addition to conventional builder and principally anionic surfactant components, fatty acid soap, a minor quantity of cellulose ether, and cationic softener of the di-lower-di-higher alkyl quanternary ammonium and/or heterocyclic imide type, e.g., imidazolinium, the weight ratio of soap to softener being about 8:1 to 1:3 preferably 5:1 to 1:2 more preferably 3:2:2:3, e.g. about unity. The soap cellulose ether mixture is preferably in the form of a spaghetti, flake, or other shape and is present in the product composition as substantially homogeneously dispersed, discrete particles.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: October 28, 1980
    Assignee: Colgate Palmolive Company
    Inventor: Harold E. Wixon
  • Patent number: 4228023
    Abstract: Novel insulating oil compositions comprising a major amount of an insulating oil and a minor amount of a diarylalkane.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: October 14, 1980
    Assignee: Gulf Research & Development Company
    Inventors: Johann G. D. Schulz, Anatoli Onopchenko, William A. Kofke
  • Patent number: 4228024
    Abstract: Novel insulating oil compositions comprising a major amount of an insulating oil and a minor amount of a product obtained as a result of a process which comprises reacting benzene with ethylene in the presence of an alkylation catalyst to obtain a reaction mixture containing largely unreacted benzene, ethylbenzene, polyethylbenzenes, 1,1-diphenylethane and heavier material, separating at least benzene, ethylbenzene and polyethylbenzenes from said reaction mixture and thereafter recovering from said heavier material a fraction whose boiling points fall within a temperature range of about 255.degree. to about 420.degree. C. as said product.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: October 14, 1980
    Assignee: Gulf Research & Development Company
    Inventors: Johann G. D. Schulz, Anatoli Onopchenko, William A. Kofke
  • Patent number: 4228042
    Abstract: Novel, biodegradable cationic surface-active agents are disclosed. These compounds, when used in laundry detergent compositions together with selected nonionic surfactants, provide excellent removal of particulate and greasy/oily soils, as well as providing fabric softening, static control, and dye transfer inhibition benefits to the laundered fabrics.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: October 14, 1980
    Assignee: The Procter & Gamble Company
    Inventor: James C. Letton
  • Patent number: 4226735
    Abstract: A dielectric ceramic composition consists essentially of strontium titanate, magnesium titanate, bismuth oxide, titanium oxide, and lead oxide, these components being present in the following compositional proportion when expressed by the formulas, SrTiO.sub.3, MgTiO.sub.3, Bi.sub.2 O.sub.3, TiO.sub.2 and Pb.sub.3 O.sub.4, respectively:______________________________________ SrTiO.sub.3 30.0-60.0 wt % MgTiO.sub.3 2.0-32.0 wt % Bi.sub.2 O.sub.3 10.0-34.0 wt % TiO.sub.2 3.0-15.0 wt % Pb.sub.3 O.sub.4 2.0-20.0 wt % Pb.sub.3 O.sub.4 /MgTiO.sub.3 0.625-10.0 (weight ratio) ______________________________________The composition exhibits high permittivity, small dielectric loss, small dependency of permittivity on temperature, and high dielectric breakdown voltage in combination, so that it makes it possible to produce physically small capacitors with large capacity and high rating voltage. The process for production of the composition is characterized by the use of MgTiO.sub.3 and Pb.sub.3 O.sub.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: October 7, 1980
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yukio Sakabe
  • Patent number: 4225747
    Abstract: An insulating fluid for impregnating the solid insulation of an oil-filled electric power cable, particularly for a cable to be submerged in water, which comprises at least one lower aliphatic derivative of napthalene, preferably, 1 methylnapthalene or 1, 2, 3, 4-tetrahydronapthalene, or mixtures thereof or a mixture of one or more lower aliphatic derivatives of naphthalene with a conventional impregnating fluid. In the latter case, the derivative is present in a significant amount and preferably, is present in an amount sufficient to provide a specific gravity substantially equal to the specific gravity of water. Also, an electric power cable having its insulation impregnated with such insulating fluid.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: September 30, 1980
    Assignee: Industrie Pirelli Societa per Azioni
    Inventor: Bernardino Vecellio
  • Patent number: 4222885
    Abstract: Method for producing a dielectric having perowskite structure comprising stoichiometric alkaline earth titanates, alkaline earth zirconates, alkaline earth stannates and mixed crystals thereof, wherein an admixture of eutectic-forming compounds which are capable of forming CuO.MeO.sub.x when sintered in an oxygen atmosphere, which cannot in practice be built into the perowskite lattice, are added to the stoichiometric perowskite structure and wherein the mixture of compounds is sintered at a partial oxygen pressure of 0.2 to 1 Bar in the temperature range from 1000.degree.-1250.degree. C., MeO.sub.x in the above-mentioned formula being the oxide of at least one element of group III, V, VI or VII of the Periodic System of Elements (P.S.E.).
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: September 16, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Detlev Hennings, Herbert Schreinemacher