Patents Examined by William R. Dixon, Jr.
  • Patent number: 5156927
    Abstract: A unitary fuel cell system for converting electric energy to chemical energy and for converting chemical energy to electric energy comprises a gas generating system for generating hydrogen by electrolysis, a storage arrangement for generated hydrogen, and a fuel cell having a solid polyelectrolytic film for generating electricity in response to the application thereto of hydrogen from the storage arrangement.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: October 20, 1992
    Inventor: Yoshiro Nakamats
  • Patent number: 5156679
    Abstract: A hydraulic cement admixture capable of air detrainment to structures formed therefrom comprising water-soluble alkylated alkanolamine salts.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: October 20, 1992
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ellis M. Gartner, David F. Myers
  • Patent number: 5156770
    Abstract: A solution for making a wear-resistant conductive contact patch for a faceplate panel of a color CRT which facilitates the electrophotographic manufacturing of a luminescent screen on the panel consists essentially of, in weight percent, solvent 22 to 70, conductive material 62 to 21, and the balance being other compatible additives.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: October 20, 1992
    Assignee: Thomson Consumer Electronics, Inc.
    Inventors: Charles M. Wetzel, Peter M. Ritt, Owen H. Roberts, Jr., Harry R. Stork
  • Patent number: 5156930
    Abstract: A battery equipped with an opening-sealing device for sealing an opening of a battery case. The opening-sealing device has a dish-like sealing plate having a downwardly protruding portion with a valve through-hole, a valve provided on the dish-like sealing plate so as to cover the valve through-hole, and a terminal cap provided on the valve having a cutter protruded downwardly toward the valve. The valve and terminal cap are firmly held by the dish-like sealing plate with a circumferential portion of the dish-like sealing plate being bent inwardly to the valve and the terminal cap. The valve has a three-layer construction comprising a metallic thin plate, a non-adhesion type resin film, and a heat-adhesion type resin film.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: October 20, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Fumio Daio, Masaki Kojima
  • Patent number: 5154764
    Abstract: An improved high-solids coating composition is disclosed containing at least about 65% by weight of non-volatile material comprising at least one curable organic resin and a drier effective amount of at least one hydrocarbon-soluble neodymium salt of an organic carboxylic acid. A method of curing high-solids coating compositions is also disclosed utilizing at least one hydrocarbon-soluble neodymium salt of an organic carboxylic acid.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: October 13, 1992
    Assignee: Mooney Chemicals, Inc.
    Inventors: Paul L. Cells, Dennis J. Olszanski
  • Patent number: 5154759
    Abstract: A polish formulation containing as components thereof at least one member selected from the group consisting of waxes, solvents, surfactants, thickening agents, abrasives, dyes, odorants and other ingredients normally used in making polishes. The improvement resides in incorporating into the polish formulation a novel reactive amine functional silicone polymer.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: October 13, 1992
    Assignee: Dow Corning Corporation
    Inventors: Martin E. Cifuentes, David B. Selley
  • Patent number: 5154767
    Abstract: A low brightness pigment and method is provided from a heretofore rejected waste kaolin stream. Kaolin processing rejects are high in iron-stained TiO.sub.2. After separating the stained TiO.sub.2 from the high brightness kaolin and concentrating the resulting fraction, the material can be processed to produce a low brightness pigment suitable of many applications where lower brightness is desirable, such as coating paper board without mottling.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: October 13, 1992
    Assignee: J. M. Huber Corporation
    Inventors: Albert C. Kunkle, Robert E. Hardy, Bobby R. Skipper
  • Patent number: 5154770
    Abstract: Perylenetetracarbimide mix-crystal pigments in the crystal lattice of the .alpha.-modification of N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) comprising 99-70 mole percent of the symmetrical diimide of the formula (1) and correspondingly 1-30 mole percent of the asymmetrically substituted diimide of the formula (2) ##STR1## process for their preparation and their use for coloring organic polymers.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: October 13, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ernst Spietschka, Helmut Troster
  • Patent number: 5154769
    Abstract: A black manganese/iron oxide pigment having a spinel structure and having the composition Mn.sub.x Fe.sub.3-x O.sub.4 wherein x has a value from 0.1 to 0.9, is prepared by the steps:a) oxidizing iron(II) salts or mixtures of iron(II) salts and manganese(II) salts, in solution or after reaction with alkaline precipitants, with manganese dioxide or other compounds containing manganese in high valency,b) additionally oxidizing the salts of (a) to establish an Fe(III) content therein with another oxidizing agent, andc) filtering, washing, drying and grinding the pigment;and the pigment is useful for pigmenting building materials to a black color.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: October 13, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Kuske, Gunter Buxbaum
  • Patent number: 5155092
    Abstract: In a ceramic superconducting composition, Ag20 is added thereto in an amount of 0.1 wt. % to 70 wt. % per mole of LaBa2Cu3O3-.delta.. The critical current density of the ceramic superconducting composition is affected by heat treatment conditions. The critical electric current density of the ceramic superconducting composition is increased when it is prepared through heat treatment while controlling the partial pressure of oxygen in a heat treatment atmosphere in steps with successive stages including a temperature-elevating step, a sintering step, a temperature-lowering step, and an annealing step.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: October 13, 1992
    Assignees: NGK Spark Plug Co., Ltd., International Superconductivity Technology Center
    Inventors: Fumio Mizuno, Izumi Hirabayashi
  • Patent number: 5152836
    Abstract: A hydraulic calcium phosphate cement composition contains as main ingredients powders of calcium tertiary phosphate and calcium secondary phosphate with a molar ratio of Ca/P of 1.400 to 1.498. The calcium tertiary phosphate contains .alpha.-type calcium tertiary phosphate and .beta.-type calcium tertiary phosphate. The cement composition may contain a hardening liquid including water.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: October 6, 1992
    Assignee: Mitsubishi Materials Corporation
    Inventors: Masahiro Hirano, Hiroyasu Takeuchi
  • Patent number: 5152810
    Abstract: Abrasive tools with a mixture of more than 9% but less than about 65% superabrasive and from about 56% down to 0.5% of a microcrystalline alumina in a bond material show surprising advantages.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: October 6, 1992
    Assignee: Norton Company
    Inventors: Charles V. Rue, Leonard G. Pukaite, Krishnamoorthy Subramanian
  • Patent number: 5151125
    Abstract: Disclosed is an aqueous metallic coating composition which significantly reduces the production of hydrogen gas and does not have the problems which are brought about from hydrophobic segments. The composition can be stored for a long period of time and provide a metallic coating having good appearance and film properties (e.g. water resistance and adhesive properties with substrates). The aqueous coating composition of the present invention comprises(a) an acryl resin having a number average molecular weight of 1,000 to 50,000, an acid value of 15 to 200 and a hydroxyl value of 20 to 200, prepared by copolymerizing an ethylenic monomer and a phosphate monomer represented by ##STR1## [wherein X represents a hydrogen atom or a methyl group, Y represents an alkylene group having 2 to 4 carbon atoms and n is an integer of 3 to 30.] and(b) a pigment;the acryl resin being present in an amount of 2 to 500 parts by weight, based on 100 parts by weight of the pigment.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: September 29, 1992
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Teruaki Kuwajima, Shinichiro Umeda, Masakazu Watanabe, Sakuichi Konishi
  • Patent number: 5151122
    Abstract: An antibacterial ceramic material wherein at least one ceramic selected from the group consisting of hydroxyapatite, calcium phosphate, calcium hydrogen phosphate, calcium carbonate, calcium silicate and zeolite is made to absorb and tightly retain at least one liquified metal salt selected from the group consisting of salts of silver, copper and zinc, after which heat firing at elevated temperatures is performed.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 29, 1992
    Assignee: Kabushiki Kaisha Sangi
    Inventors: Kiminori Atsumi, Tomoki Saito, Masaaki Komori
  • Patent number: 5151107
    Abstract: Superabrasive cutting elements, backed compacts and methods for their manufacture are disclosed wherein metal coated superabrasive particles are cemented under HPHT conditions. The superabrasives bond to the metal of the coating and the metal coatings of adjacent particles bond to each other forming a matrix. A binding aid with thermal expansion characteristics close to that of the superabrasive particle can be infiltrated through or otherwise mixed with the particles to assist in the bonding between the metal coatings and to fill in voids. Catalyst and non-catalyst binding aids can also be used. Uncoated, smaller superabrasive particles can be interstitially dispersed among the coated particles to increase the superabrasive concentration and can self bond to form a cemented/sintered structure. Tungsten is a preferred metal coating and silicon is a preferred binding/sintering aid. The superabrasive can be diamond, cubic boron nitride, boron doped diamond or crushed, sintered polycrystalline aggregates.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: September 29, 1992
    Assignee: Norton Company
    Inventors: Hyun S. Cho, Chien-Min Sung, Leo Merrill, Sy-Hwa Chen
  • Patent number: 5151128
    Abstract: An ink includes: a recording agent; a liquid carrier medium; and an alkylether of polyoxyethylene-polyoxypropylene random polymer having the following general formula [I]:R.sub.1 --(X)--O--R.sub.2 [I]wherein R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group, with the proviso that they cannot both be a hydrogen atom, and X is a random polymer of ethylene oxide and polypropylene oxide.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: September 29, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyouko Fukushima, Koromo Shirota, Shouji Koike
  • Patent number: 5151131
    Abstract: Oil field cement liquid fluid loss control additives and methods of field preparing such additives prior to preparing a cement composition containing the additive are provided. The method of field preparing the liquid fluid loss control additive comprises admixing an organophilic clay suspending agent with a liquid hydrocarbon, combining a surfactant with the mixture and then combining at least one hydrophilic polymer with the mixture to form the additive.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 29, 1992
    Assignee: Halliburton Company
    Inventors: John Burkhalter, Jolinda K. Suson
  • Patent number: 5151127
    Abstract: Fire retardation and wood preservation compositions having inorganic salts encapsulated by a water-based acrylic resin solution. The salts are carried by water into the wood or cellulose product to be treated. After the water evaporates, the inorganic salts are retained in the treated wood and not leached from or washed out of the wood product. The component compounds of the compositions are mixed in specific sequences to avoid coagulation of the mixture.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: September 29, 1992
    Inventor: Duncan C. Thompson
  • Patent number: 5151129
    Abstract: A process for the production of a pigment composition comprising precipitating a pigment coupling component from alkaline solution by adding to it an acid, in the presence of a pre-formed, water-soluble azo dyestuff; and subsequently coupling the precipitated coupling component, containing the azo dyestuff, with a pigment diazo or tetrazo component, ensuring that at no time is any substantial amount of uncoupled diazo or tetrazo component present, to form a pigment composition containing the water-soluble azo dyestuff.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 29, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Donald J. Morrison, David McGregor, James M. McCrae
  • Patent number: 5151108
    Abstract: Disclosed is a method of producing porous vitrified grinder, where melamine cyanurate is used as a pore-imparting agent. The grinder has a long life and has an improved grinding capacity.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: September 29, 1992
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Motohide Kitahara, Hiroshi Ozaki, Kouji Shishido