Patents Examined by Prince Willis, Jr.
  • Patent number: 5558961
    Abstract: An alkali metal manganese oxide secondary cell is disclosed which can provide a high rate of discharge, good cycling capabilities, good stability of the cathode material, high specific energy (energy per unit of weight) and high energy density (energy per unit volume). The active material in the anode is an alkali metal and the active material in the cathode comprises an orthorhombic alkali metal manganese oxide which undergoes intercalation and deintercalation without a change in phase, resulting in a substantially linear change in voltage with change in the state of charge of the cell. The active material in the cathode is an orthorhombic structure having the formula M.sub.x Z.sub.y Mn.sub.(1-y) O.sub.2, where M is an alkali metal; Z is a metal capable of substituting for manganese in the orthorhombic structure such as iron, cobalt or titanium; x ranges from about 0.2 in the fully charged state to about 0.75 in the fully discharged state, and y ranges from 0 to 60 atomic %.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: September 24, 1996
    Assignee: Regents, University of California
    Inventors: Marca M. Doeff, Marcus Y. Peng, Yanping Ma, Steven J. Visco, Lutgard C. DeJonghe
  • Patent number: 5558809
    Abstract: The use of additives to produce polymer electrets with improved charge stability. In particular, the invention relates to the use of specific charge control agents used for toners that are blended with various polymers at suitable concentrations to enhance the charge lifetime of the electrets. The charge control agents include a triphenylmethane compound, a polymeric ammonium compound, and arylsulfide compound and azochromium complex.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: September 24, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Werner Groh, Hans-Tobias Macholdt, Baylor D. Gibson, James R. Walden, Clinton D. Felton
  • Patent number: 5558947
    Abstract: Rechargeable metal-air battery systems comprise a plurality of plate groups (40) disposed within a battery cell (12) and have input and output conduits (13, 14). A fluid electrolyte is circulated through the battery cell by a pump (22) and regenerated by a divester (20) for recirculation through the battery cell (12). The divester (20) divests the particles of active material suspended within the electrolyte of their oxide layer resulting from passivation caused by the electrolyte solution being saturated with oxide. The divester (20) performs its function by bringing the particles of active material into frictional contact with one another. The battery system (10) constructed in accordance with the present invention may be chemically recharged by removing the spent active material suspended within the electrolyte and replacing it with new active material.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: September 24, 1996
    Inventor: George D. Robison
  • Patent number: 5558807
    Abstract: A high temperature long bearing life grease is disclosed comprising a wax isomerate based base stock plus an antioxidant consisting of a metal salt and a diphenyl amine. The base stock may be 100% wax isomerate oil or mixture of wax isomerate oil and mineral oil boiling in the lube oil boiling range.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: September 24, 1996
    Assignee: Exxon Research and Engineering Company
    Inventor: Jeenok T. Kim
  • Patent number: 5556723
    Abstract: A negative electrode for use in a secondary battery is disclosed, comprising milled carbon fibers derived from mesophase pitch wherein the milled carbon fibers each has a fiber cut surface and a fiber axis intersecting with each other at cross angles, the smaller one thereof being at least 65.degree. on the average. This negative electrode does not suffer from property deterioration, irrespective of multiple repetitions of charge and discharge, from which a nonaqueous-electrolyte-loaded lithic secondary battery having excellent cycle characteristics can be fabricated.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: September 17, 1996
    Assignees: Kabushiki Kaisha Toshiba, Petoca, Ltd.
    Inventors: Takahisa Ohsaki, Norio Takami, Yoshiyuki Nishimura, Toshio Tamaki
  • Patent number: 5554586
    Abstract: A grease composition with a high yield comprises a lubricating oil and a polyurea thickener prepared by reacting a diisocyanate compound with a monoamine and a low molecular weight polyoxyalkylene diamine.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: September 10, 1996
    Assignee: Texaco Inc.
    Inventor: Samuel Pratt
  • Patent number: 5554458
    Abstract: An aluminum non-aqueous electrolyte secondary cell having excellent rechargeable characteristics and comprising an aluminum or an aluminum alloy negative electrode, characterized in that it comprises a negative electrode made from aluminum or an aluminum alloy, a non-aqueous electrolyte containing a non-aqueous solvent with an aluminum halide and an organic halide dissolved therein, and a positive electrode containing FeS.sub.2 as the active material.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: September 10, 1996
    Assignee: Sony Corporation
    Inventors: Kazuhiro Noda, Eishi Endo, Kenichi Takahashi
  • Patent number: 5554463
    Abstract: An expanded screen current collector is provided with side edges coined inwardly to prevent sharp tines formed along the side edges from damaging adjacent components within the electrochemical cell. The expanded screen current collector is formed by cutting a thin flat sheet of current collector material, such as titanium or stainless steel, to have a height somewhat greater than a height required for use within the electrochemical cell. The current collector material is cut and expanded, then the side edges are coined inwardly by an amount sufficient to reduce the height of the resulting expanded screen current collector to a height appropriate for use within the electrochemical cell. An active cathode material, such as polycarbonmonoflouride, is coated onto side surfaces of the expanded screen current collector. An electrode structure employing the expanded screen current collector having the coined edges is also described.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 10, 1996
    Assignee: Pacesetter, Inc.
    Inventors: Nikola Marincic, Luka Rabadjija
  • Patent number: 5553465
    Abstract: A lubricant composition comprising as a base oil one or more ester oils, alkylbenzene oils and mineral oils, and a glycidyl ether compound having at least two epoxy groups is miscible in hydrofluorocarbon and hydrochlorofluorocarbon refrigerants such as R134a, etc. as replacing refrigerants of R12 and provides a stable operation of refrigeration compressor for a long period of time without causing corrosion and wear of a sliding portion of the compressor.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: September 10, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Katsumi Fukuda, Tadashi IIzuka, Reishi Naka, Hiroaki Hata, Masahiko Gommori, Yoshiharu Homma
  • Patent number: 5552244
    Abstract: A reversible high energy capacity battery and method of making that battery. A cathode is formed by packing a mixture of from about 10 to 90 weight percent finely divided sulfur and from about 90 to 10 weight percent finely divided graphite about an electrically conductive electrode, preferably in a porous enclosure. This cathode and a reactive metal anode are placed in a case of suitable configuration which is non-reactive with other components. An electrolyte is prepared by mixing particles of an ion exchange resin system including a polyalkyl sulfide, a resin substrate and agent selected from the group consisting of H.sub.2 S, HS.sup.-, S.sub.2.sup.- and mixtures thereof in a polar solvent, such as water. Buffering agents, conditioners and complexing agents may be added to the electrolyte to improve battery life and performance.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: September 3, 1996
    Assignee: Eric Blair Griffen
    Inventors: Eric B. Griffin, Jack V. Edling
  • Patent number: 5552068
    Abstract: A lubricant oil composition having balanced antiwear/extreme pressure and stability properties while providing friction reduction which comprises:(1) a major amount of a lubricating oil basestock; and(2) a minor amount of an amine phosphate salt of the formula: ##STR1## where R.sub.1 is C.sub.9 to C.sub.22, R.sub.2 and R.sub.3 are each independently C.sub.1 to C.sub.4 hydrocarbyl, R.sub.4 is c.sub.10 to c.sub.20 hydrocarbyl, and R.sub.5 is hydrogen to c.sub.10 to c.sub.20 hydrocarbyl; wherein the amine phosphate salt is soluble in the lubricant oil basestock at 25C, is a liquid at 25C, and the ratio of gram-atomic-equivalents of amine to phosphate in said salt is from about 1.0 to 1.2.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: September 3, 1996
    Assignee: Exxon Research and Engineering Company
    Inventor: Martin G. Griffith
  • Patent number: 5552241
    Abstract: Low temperature molten salt compositions comprised of a mixture of a metal halide, such as but not limited to aluminum trichloride, and a fluoropyrazolium salt, such as but not limited to 1,2-dimethyl-4-fluoropyrazolium chloride, which are resistant towards oxidation over a wide temperature gradient and are useful as electrolytes in electrochemical cells.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: September 3, 1996
    Assignee: Electrochemical Systems, Inc.
    Inventors: Gleb Mamantov, deceased, Josip Caja, Thanthrimudalige D. J. Dunstan
  • Patent number: 5549715
    Abstract: A method for bleaching textile material, including preparing an aqueous alkaline solution of a bleaching agent composed of formamidine sulfinic acid and at least one carbohydrate having a general total formula C.sub.n H.sub.2n O.sub.n, the formamidine sulfinic acid and the at least one carbohydrate having a weight ratio with respect to one another which ranges from 80:20 to 99:1; and bleaching textile material composed at least in part of cellulose materials by contacting the textile material with the bleaching agent at a temperature above 50.degree. C. therefor.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: August 27, 1996
    Assignee: Degussa Austria GmbH
    Inventor: Vinzenz Olip
  • Patent number: 5547594
    Abstract: This invention relates to lubricants for polyethylene snow sliders which comprise fluorinated disulfides of the formula[R.sub.f (CH.sub.2).sub.m S].sub.2having a melting point of at least 25.degree. C. at most 60.degree. C., a fluorine content of at least 61% and at most 68% and wherein R.sub.f is independently a straight or branched perfluoroalkyl group.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: August 20, 1996
    Inventor: Athanasios Karydas
  • Patent number: 5547592
    Abstract: A lubricant for metal working comprising a dicarboxylic acid represented by the following general formula (I) or its amine salt or its alkali metal salt and a sulfur extreme pressure agent: ##STR1## wherein R.sub.1 stands for COOH or H; and R.sub.2 stands for H when R.sub.1 is COOH and COOH when R.sub.1 is H.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: August 20, 1996
    Assignee: Asahi Denka Kogyo Kabushiki Kaisha
    Inventors: Kenichi Nakagawa, Michiyoshi Sugioka, Koichi Ito
  • Patent number: 5547783
    Abstract: The present invention provides a valve-regulated lead-acid battery in which the theoretical capacity (Ah) of the negative active material in the battery is less than that of the positive active material, the amount of a conductive additive, such as carbon, added into the negative active material is in the range of 0.5 weight % to 7.5 weight % of the negative active material, and the conductive additive is carbon, acetylene black, polyaniline, tin powder, tin compound powder, etc. having an average particle diameter of 100.mu. or less.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: August 20, 1996
    Assignee: Japan Storage Battery Company, Limited
    Inventors: Takayuki Funato, Katsuhiro Takahashi
  • Patent number: 5547476
    Abstract: A home dry cleaning process is provided. Thus, a carrier sheet releasably impregnated with solvents such as butoxy propoxy propanol, 1,2-octanediol as a wetting agent, water and an emulsifier is placed in a plastic bag with soiled garments and tumbled in a hot-air clothes dryer. The garments are cleaned and refreshed.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: August 20, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Michael P. Siklosi, Timothy C. Roetker
  • Patent number: 5542950
    Abstract: A surfactant composition for use in scouring and bleaching textile materials containing:(a) from about 94.0 to about 6.0% by weight of an alkyl polyglycoside having the general formula IRO (Z).sub.a (I)wherein R is a monovalent organic radical having from about 8 to about 16 carbon atoms; Z is a saccharide residue having 5 to 6 carbon atoms; and a is a number having a value from about 1 to about 6,(b) from about 6.0 to about 94.0% by weight of a synthetic alkoxylated C.sub.11 -C.sub.15 linear alcohol, or(c) from about 6.0 to about 94.0% by weight of a chlorine-capped ethoxylated isodecyl alcohol, and(d) the remainder water, all weights being based on the weight of the composition.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: August 6, 1996
    Assignee: Henkel Corporation
    Inventors: Howard Cole, Kristina W. Erler, Kenneth L. Smith, Brian C. Francois
  • Patent number: 5543068
    Abstract: A lubricating oil for flon compressor includes, as a main ingredient, a compound represented by a formula (I):R.sub.1 --[--O--(R.sub.2 O).sub.y --(CH.sub.2 CH.sub.2 O).sub.z --H].sub.x (I)in which R.sub.1 denotes a hydrocarbon residue derived from a C.sub.1-8 alcohol having a valence of 1 to 4, R.sub.2 denotes a C.sub.3-4 branched alkylene group, x denotes an integer of 1-4, and y and z each independently denote a positive number, R.sub.2 O units and CH.sub.2 CH.sub.2 O units are block copolymerized in an order shown in the formula (I), z/(y+z) is more than 0 but not more than 0.3. The lubricating oil has a kinetic viscosity of 2-30 cSt at 100.degree. C. A mixture of the oil having the formula (I) with a lubricating oil having a formula (II): R.sub.3 --[--O--(R.sub.4 O).sub.m --(CH.sub.2 CH.sub.2 O).sub.n --R.sub.5 ].sub.l may be also used. In the formula (II), R.sub.3 denotes a hydrocarbon residue derived from a CI-s alcohol having one to four hydroxyl groups, R.sub.4 denotes a C.sub.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: August 6, 1996
    Assignees: Japan Energy Corporation, Nissan Motor Co., Ltd.
    Inventors: Takashi Kaimai, Hiroki Tawaki, Sumio Yokoo, Yoshie Arakawa
  • Patent number: 5540851
    Abstract: Dispersant-viscosity improvers for lubricating oil compositions comprise the reaction product of reactants comprising(a) an oil soluble ethylene-alpha olefin copolymer wherein the alpha olefin is selected from the group consisting of C.sub.3-28 alpha olefins, said polymer having a number average molecular weight ranging from about 30,000 to about 300,000 grafted with an ethylenically unsaturated carboxylic acid or functional derivative thereof;(b-1) at least one polyester containing at least one condensable hydroxyl group; and(b-2) at least one polyamine having at least one condensable primary or secondary amino group, and optionally further comprising (c) at least one hydrocarbyl substituted carboxylic acid or anhydride.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: July 30, 1996
    Assignee: The Lubrizol Corporation
    Inventor: Richard M. Lange