Patents Examined by Prince Willis, Jr.
  • Patent number: 5698499
    Abstract: A composition of matter having the structure ##STR1## wherein R.sup.1, R.sup.2, R.sup.4, and R.sup.5 are independently a member selected from the group consisting of alkyl, cycloalkyl, aryl, aralkyl, and alkaryl, and R.sup.3 is alkylene. Lubricants and lubricant additives comprising the composition are also disclosed. The lubricants are preferably lubricating oils.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: December 16, 1997
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: John R. Baranski, Cyril A. Migdal
  • Patent number: 5695885
    Abstract: One embodiment of the present invention is a battery (17) (preferably configured in the form of a wrist band, headband, necklace, arm band or a waist band) for a personal electronic device (preferably a watch, a personal communications device, a personal television, or a personal radio), the battery located external to the personal electronic device and comprising: an outer surface (12); an anode (28); a cathode (30); and a connector (10) to electrically connect the battery to the personal electronic device. The battery of the present invention can be flexible. In addition the battery may further include a plurality of photovoltaic cells (22) disposed on the outer surface of the battery, whereby the battery and the photovoltaic cells are operable to supply power to the personal electronic device. Additionally, the plurality of photovoltaic cells would be operable to charge the battery during periods other than when the battery is supplying power to the personal electronic device.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: December 9, 1997
    Assignee: Texas Instruments Incorporated
    Inventor: Satwinder Malhi
  • Patent number: 5696065
    Abstract: The present invention is directed to provide an engine oil composition which fully exploits the performance of molybdenum dithiocarbamate (MoDTC), restricts degradation of MoDTC itself, and has a high MoDTC residual property even at the time of degradation, hence providing low friction and low wear for a long time, and which results in savings in fuel consumption. It is also directed to an engine oil composition having a high coefficient of friction and an extreme-pressure property under fluid lubricating conditions arising from extreme-pressures, in order to solve various problems encountered in friction. The engine oil compositions according to the present invention comprise a specific MoDTC, a specific zinc dithiophosphate and a base oil for engine oil as the essential components, and specific polyglycerin half esters may be further added.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: December 9, 1997
    Assignee: Asahi Denka Kogyo K. K.
    Inventors: Noriyoshi Tanaka, Aritoshi Fukushima, Yukio Tatsumi, Kazuhisa Morita, Yoko Saito
  • Patent number: 5693434
    Abstract: An electrochemical cell is provided with first (10) and second (11) electrodes and a solid polymer electrolyte (15) disposed therebetween. The solid polymer electrolyte is preferably fabricated by providing a linear powdered polymeric precursor material which is thereafter heated to temperatures sufficient to drive off moisture and in the presence of an electrolyte active species. The electrolyte active species is preferably an acidic electrolyte active species which has the effect of protonating the powdered polymeric precursor material. Electrochemical cells fabricated using these devices demonstrate performance characteristics far better than those available in the prior art.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: December 2, 1997
    Assignee: Motorola, Inc.
    Inventors: Changming Li, Ke Keryn Lian, Richard H. Jung
  • Patent number: 5693430
    Abstract: A nonaqueous electrolytic secondary battery has a seal whose transparency and permeability with respect to external gas or moisture can be suppressed to a low level and which has high reliability. The nonaqueous electrolytic secondary battery has an electrolytic solution injection port (32) for injecting a nonaqueous electrolytic solution and an expansion plug (4) for air-tightly sealing the electrolytic solution injection port. A metal seal (2) is arranged between the electrolytic solution injection port (32) and the expansion plug (4). The metal seal (2) is of a metal containing aluminum as a main component, or a stainless steel, and the expansion plug (4) is of stainless steel.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: December 2, 1997
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Satoshi Iwatsu, Tatsuo Shimizu, Hideya Takahashi, Yosuke Kita, Kiyoshi Katayama, Etsuo Ogami
  • Patent number: 5686198
    Abstract: A low cost, lanthanide-substituted, dimensionally and thermally stable, gas permeable, electrically conductive, porous ceramic air electrode composition of lanthanide-substituted doped lanthanum manganite is provided which is used as the cathode in high temperature, solid oxide electrolyte fuel cells and generators. The air electrode composition of this invention has a much lower fabrication cost as a result of using a lower cost lanthanide mixture, either a natural mixture or an unfinished lanthanide concentrate obtained from a natural mixture subjected to incomplete purification, as the raw material in place of part or all of the higher cost individual lanthanum. The mixed lanthanide primarily contains a mixture of at least La, Ce, Pr, and Nd, or at least La, Ce, Pr, Nd and Sm in its lanthanide content, but can also include minor amounts of other lanthanides and trace impurities. The use of lanthanides in place of some or all of the lanthanum also increases the dimensional stability of the air electrode.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: November 11, 1997
    Assignee: Westinghouse Electric Corporation
    Inventors: Lewis J. H. Kuo, Prabhakar Singh, Roswell J. Ruka, Theodore R. Vasilow, Raymond J. Bratton
  • Patent number: 5683831
    Abstract: A battery pack device which can be removably attached to a SPH-4 helmet and used to power an ANVIS night vision goggle device which is mounted on the helmet. The battery pack device includes a battery pack assembly with a bent-shaped housing that enables the battery pack assembly to conform to the shape of the helmet. The housing of the battery pack assembly is adapted to hold only two replaceable AA battery sets to minimize the weight of the battery pack device. The battery pack assembly also includes electrical circuitry for selecting one of the two battery sets to power the night vision device. A support assembly adapted to be permanently fastened to the helmet is provided for removably attaching the battery pack assembly to the rear of the helmet.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: November 4, 1997
    Assignee: ITT Defense, Inc.
    Inventors: Albert Morton Baril, Roy Herbert Holmes, Mark Alan Bryant, Bradley Philippi
  • Patent number: 5683834
    Abstract: A nonaqueous secondary battery comprising positive and negative sheet electrodes, each composed of a collector coated with an electrode material mixture containing the respective active material and a nonaqueous electrolyte containing a lithium salt, wherein the electrode material mixture is present on both the inner and the outer sides of the collector and the coating thickness of the electrode material mixture on the inner side of the collector of the positive and/or negative electrode(s) is smaller than that of the electrode material mixture on the outer side of said collector. The battery is excellent in charge and discharge cycle characteristics, and the sheet electrodes have excellent winding properties when rolled up into cylinders.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: November 4, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Fujimoto, Yasuo Aotsuka
  • Patent number: 5681800
    Abstract: A biodegradable synthetic ester base stock which comprises a blend of the following base stocks: (A) the reaction product of: (1) a branched or linear alcohol having the general formula R(OH).sub.n, wherein R is an aliphatic or cyclo-aliphatic group having from about 2 to 20 carbon atoms and n is at least 2; and (2) mixed acids comprising about 30 to 80 molar % of a linear acid having a carbon number in the range between about C.sub.5 to C.sub.12, and about 20 to 70 molar % of at least one branched acid having a carbon number in the range between about C.sub.5 to C.sub.10 and wherein no more than 10% of the branched acids used to form the biodegradable synthetic ester base stock contains a quaternary carbon; wherein the ester base stock exhibits the following properties: at least 60% biodegradation in 28 days as measured by the Modified Sturm test, a pour point of less than -25.degree. C.; and a viscosity of less than 7500 cps at -25.degree. C.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: October 28, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Carolyn Boggus Duncan, Leah Katherine Meade
  • Patent number: 5679479
    Abstract: A battery separator for use in flooded cell type lead acid batteries comprising a backweb of a porous, acid resistant, embossable material with a plurality of ribs extending from at least one planar surface of the backweb. The ribs are located across the width of the backweb and extend in a direction substantially parallel to the longitudinal dimension of the backweb. Each rib is an embossed corrugated structure comprised of alternating ridges and furrows. The ridges and furrows are in non-parallel alignment to the longitudinal dimension of the separator, and preferably perpendicular thereto. The ribs are formed on a substantially flat battery separator backweb by passing the backweb through the nip formed by a pair of opposed embossing rollers.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: October 21, 1997
    Assignee: Amtek Research International LLC
    Inventors: James Young, Francis E. Alexander
  • Patent number: 5677084
    Abstract: The invention relates to an electrode suitable for a chargeable/dischargeable secondary battery in which a carbonaceous material capable of doping and dedoping of lithium ions is used as a negative electrode active material, wherein carbon fibers are used as the carbonaceous material in a form of an uni-directionally arranged body or in combination of electrically conductive foil or fibers, and further relates to a secondary battery using the electrode. The invention enables to provide a secondary battery having high capacitance and high outputtng property.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: October 14, 1997
    Assignee: Toray Industries, Inc.
    Inventors: Jun Tsukamoto, Takeji Nakae, Tatsuhiko Suzuki, Mikio Nii, Masayuki Kidai
  • Patent number: 5677086
    Abstract: The invention provides a cathode material for lithium secondary battery containing lithiated nickel dioxide having excellent charge/discharge characteristics and a process for producing the lithiated nickel dioxide, and a lithium secondary battery. That is, the cathode material for lithium secondary battery contains lithiated nickel dioxide having .alpha.-NaFeO.sub.2 structure and shows a coulomb efficiency of 85% or higher at the first charging and discharging, and the process for producing lithiated nickel dioxide comprises dispersing a nickel compound in a lithium nitrate solution, then evaporating the solvent to obtain a mixture of lithium nitrate and the nickel compound and firing the mixture in an atmosphere containing oxygen.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: October 14, 1997
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tomoari Satoh, Kenji Nakane, Yasunori Nishida
  • Patent number: 5674819
    Abstract: This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described which are prepared by reacting a terpolymer derived from a mixture of monomers comprising ethylene, an alpha-olefin containing 3 to about 20 carbon atoms, and a non-conjugated polyene with an alpha,beta-monounsaturated dicarboxylic acid or reactive derivative thereof. These carboxylic compositions may be used in lubricating oil or fuel compositions or may be used to form carboxylic derivative compositions which are useful in lubricating oil and fuel compositions.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: October 7, 1997
    Assignee: The Lubrizol Corporation
    Inventors: Matthew R. Sivik, David E. Ripple
  • Patent number: 5672443
    Abstract: A battery sealing cap having a base with a top surface and a bottom surface, an annular rim attached to and extending outward from the top surface of the base, and a central portion having a first end and a second end attached to and generally located on the base such that the first end extends outward from the top surface and the second end extends outward from the bottom surface. The battery sealing cap also includes a centrally located channel with a longitudinal axis extending from the first end to a closed bottom portion at the second end, the closed bottom portion having a tab extending into the channel which is out of alignment with the longitudinal axis of the channel.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: September 30, 1997
    Assignees: Phillips Plastics Corporation, Rayovac Corporation
    Inventors: Timothy L. Salisbury, Charles A. Draheim, Joseph L. Passaniti
  • Patent number: 5672571
    Abstract: A grease composition for constant velocity joints comprises (a) a base oil; (b) a lithium-containing thickener selected from the group consisting of lithium soap and lithium complex soap; (c) an organic molybdenum compound selected from the group consisting of molybdenum dithiophosphates and molybdenum dithiocarbamates; (d) a zinc dithiophosphate; (e) a sulfur-phosphorus extreme pressure agent free of any metal; and (f) a calcium salt selected from the group consisting of calcium salts of oxidized waxes, calcium salts of petroleum sulfonates and calcium salts of alkyl aromatic sulfonates. The grease composition for constant velocity joints exhibits a substantially improved effect of reducing friction coefficient and a substantially improved effect of reducing the axial force proportional to the third order component of rotation.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: September 30, 1997
    Assignee: Kyodo Yushi Co., Ltd.
    Inventors: Ko Hatakeyama, Shinya Kondo
  • Patent number: 5672445
    Abstract: The present invention provides a lithium secondary cell containing a positive electrode including a material which occludes and exudes lithium; a negative electrode containing a negative material including graphite; and a separator disposed between the positive and negative electrodes; wherein the quantity of lithium occluded in the negative material in a fully-charged state is less than 55% of the theoretical lithium occlusion capacity of the negative electrode.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: September 30, 1997
    Assignee: Japan Storage Battery Co., Ltd.
    Inventors: Kazuhiro Nakamitsu, Hisashi Tukamoto, Shigeo Komatsu, Toshimichi Nakamura
  • Patent number: 5670267
    Abstract: An auxiliary battery storage pack is inserted in the main battery storage pack for a portable computer in place of the specially designed battery so that the user can install ordinary batteries therein. The auxiliary pack adapts the internal size of the main battery storage pack so that it can receive batteries of various size, and connects the contact springs of the computer, through the main battery pack, with corresponding electrodes of the ordinary batteries.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: September 23, 1997
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Cheon-Yeol Lee
  • Patent number: 5670275
    Abstract: A secondary battery is comprised of a positive electrode having a material intercalating alkali earth metal ions or lanthanoid metal ions reversibly, a negative electrode having a carbon composition intercalating those ions reversibly and an electrolyte having an organic solvent and a solute. The solute includes an alkali earth metal salt or a lanthanoid metal salt. The organic solvent is selected from a group comprising ethylene carbonate (EC), dimethyl carbonate (DMC) and vinylene carbonate (VC). The carbon composition is selected from a group comprising coke, refined coke with 99% or more purity, organic compound produced by calcined cellulose, graphite and glassy carbon.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: September 23, 1997
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masahisa Fujimoto, Koji Nishio, Toshihiko Saitoh
  • Patent number: 5670273
    Abstract: A method of fabricating electrochemical cells and batteries wherein the successive anode and cathode layers are separated by a polymeric electrolyte layer having a protruding polymer edge around its perimeter which reduces the likelihood of inadvertent contact between the anode and cathode current collectors is provided. The polymer edge functions as a non-conducting physical barrier positioned between adjacent current collectors.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: September 23, 1997
    Assignee: Valence Technology, Inc.
    Inventors: David A. Velasquez, Douglas B. Holmes, E. Lawrence Goglin
  • Patent number: 5670463
    Abstract: A light-duty, multi-purpose lubricant particularly formulated for use on the diverse bearing surfaces mechanisms which operate in a dirty or dusty environment, such as bicycle chains. The lubricant comprises an insoluble soap, preferably Calcium Stearate in suspension in a volatile solvent-based solution of paraffin wax, petrolatum and a surfactant. After application and evaporation of the solvent the composite dry lubricant exhibits good penetration and load bearing properties without the dirt-retaining character of greases. The optional surfactant is surrounded and deactivated by the other components so that the dried lubricant is water repelling. The undissolved particles of soap combine with dirt particles to break-down portions of the lubricant into a dry flaky dust which is sloughed off the mechanism. Soluble waxes having different solid phase crystalline structures may be blended with the paraffin to reduce the rate of sloughing.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: September 23, 1997
    Inventor: Paul D. Maples