Patents Examined by J. M. Gray
  • Patent number: 6329055
    Abstract: There is disclosed a multilayer insulated wire which comprises a conductor and solderable extrusion-insulating layers made up of two or more layers for covering the conductor, wherein at least one insulating layer is formed by a mixture comprising 100 parts by weight of a resin (A), of at least one selected from the group consisting of polyetherimide resins and polyethersulfone resins, 10 parts by weight or more of a resin (B), of at least one selected from the group consisting of polycarbonate resins, polyarylate resins, polyester resins, and polyamide resin, and 15 to 200 parts by weight of an inorganic filler (C). There is also disclosed a transformer which utilizes the multilayer insulted wire. The multilayer insulated wire is excellent in heat resistance, solderability, high-frequency characteristic, and coilability, and it is favorably suitable for industrial production.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: December 11, 2001
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Atsushi Higashiura, Isamu Kobayashi, Naoyuki Chida
  • Patent number: 6322888
    Abstract: A process for producing sized glass yarns, which entails: a) drawing streams of molten glass from orifices located at a bottom of one or more dies, in a form of one or more fans of continuous filaments, b) assembling the filaments into one or more moving supports, wherein a first stable composition having a viscosity of between 0.5 and 250 cP is deposited onto the surface of the continuous filaments, and a second stable composition, supplied separately from the first and having a viscosity of between 0.5 and 300 cP, is deposited onto the surface of the filaments of the yarns, at the earliest during deposition of the first composition and at the latest during collection of the years, the difference in viscosity between the two compositions deposited being less than 150 cP, the mixture of the deposited compositions functioning as a sizing composition and being polymerizable at room temperature.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: November 27, 2001
    Assignee: Vetrotex France
    Inventors: Patrick Moireau, Bruno Gibello, Marc Roubin
  • Patent number: 6319604
    Abstract: A coated wire that includes an electrical conductor having an abrasion and varnish craze resistant lubricated coating. The coating is made of a ceramic particulate material dispersed in a polyamideimide binder. Ceramic particulate materials suitable for incorporation in the coatings include silicon nitride (Si3N4), aluminum nitride (AlN), and titanium nitride (TiN).
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: November 20, 2001
    Assignee: Phelps Dodge Industries, Inc.
    Inventor: James J. Xu
  • Patent number: 6319549
    Abstract: Provided is an improved optical glass fiber, ribbon unit having the capability of providing mid-span access to individual color-coated optical glass fibers contained therein by application of finger pressure from a human hand. The ribbon unit is made of a plurality of coated optical glass fibers each further coated with a cured color-composition; and a matrix material which binds the plurality of color-coated optical glass fibers together, wherein a bonding force between the cured color-composition and the coated optical glass fibers is greater than a bonding force between said cured color-composition and said matrix material, and wherein the matrix material has been selected or formulated to provide a modulus and Tg sufficiently high such that when opposing pressure is applied to the ribbon unit using the fingers of a human hand, the matrix material buckles and separates from said color-coated optical glass optical fibers instead of compressing and absorbing the opposing pressure.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: November 20, 2001
    Assignee: DSM N.V.
    Inventors: David M Szum, Adrianus G. M. Abel
  • Patent number: 6306500
    Abstract: There is disclosed a method for producing a porous optical fiber base material comprising depositing fine glass powder on a rotating member, wherein pore size of the deposited fine glass powder is controlled, and preferably, mode of the pore size is controlled to be 0.1 to 1 &mgr;m, or wherein a total amount of absorbed H2O amount and OH group amount on the fine glass powder per square meter of fine glass powder surface area is controlled to be 3.5×10−5 to 7.5×10−5 g. Such porous optical fiber base materials have an improved weight of fine glass powder deposited on the member per batch, or an improved fine glass powder deposit efficiency, which may greatly contribute to improvement of production ability and reduction of production cost.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: October 23, 2001
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Haruyoshi Kuwabara, Tadakatsu Shimada, Hideo Hirasawa
  • Patent number: 6299978
    Abstract: A semi-conducting composition for use as conductor shield in extruded coatings on high voltage electrical cables, and the resultant cables. The composition consists essentially of (a) a polymeric component of a blend of 0-99% by weight of polyolefin and 1-100% by weight of a ter-polymer of ethylene/ vinyl acetate (vinyl alcohol), (b) conducting carbon black, and (c) an antioxidant.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: October 9, 2001
    Assignee: Equistar Chemicals, LP
    Inventor: Haridos Sarma
  • Patent number: 6296936
    Abstract: An improved coform material having a plurality of synthetic fibers, a plurality of natural fibers commingled with the plurality of synthetic fibers and a treatment system including a surfactant selected from the group consisting of ethoxylated hydrogenated fatty oils, monosaccharides, monosaccharide derivatives, polysaccharides, polysaccharide derivatives, and combinations thereof, applied to the synthetic fibers. The integrated composite material is particularly suitable for use in personal care absorbent articles such as feminine hygiene products, diapers, training pants, absorbent underpants, and adult incontinence products.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: October 2, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ali Yahiaoui, Charles Edward Bolian, II, Daryl Steven Bell, Nancy Ann Secen
  • Patent number: 6294256
    Abstract: A composition of matter for use as dielectric shield in an electric power cable having insulation of XLPE, EPR or EPDM comprises: a base polymer which is a copolymer of ethylene with a mono-unsaturated ester; conductive carbon black in an amount to give the composition an electrical resistivity below 500 Am; and as an adhesion-adjusting additive, 1-20% by weight of the base polymer of a copolymer which consists essentially of ethylene and a comonomer having in its molecule at least one carbon-oxygen dipole, said copolymer having a molecular weight less than 20,000 Daltons but a melting point higher than 30° C. This new class of additive permits use of EVA's with lower vinyl acetate content than prior art additives and so enables the composition to have less rubbery physical properties.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: September 25, 2001
    Assignee: BICC General Cable Industries, Inc.
    Inventor: Mark Richard Easter
  • Patent number: 6287692
    Abstract: A crosslinked coating composition that demonstrates excellent resistance to fuel, flame and high temperature in addition to good mechanical properties including high flexibility, high elongation and tensile strength, abrasion and pinch resistance is provided. The composition is based on a blend of HDPE homopolymers and high-VA-content EVA copolymers and is useful as an insulating material for wires or cables used in automotive gas-tank passthrough applications.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: September 11, 2001
    Assignee: Judd Wire, Inc.
    Inventors: Jiazhong Luo, Anthony E. Listro
  • Patent number: 6284374
    Abstract: Disclosed are a strippable semiconductive resin composition adapted for formation of a semiconductive layer having a volume resistivity of not more than 5000 &OHgr;·cm at room temperature, the composition comprising: a polymer component (a), with a number average molecular weight of not less than 3×104 or a weight average molecular weight of not less than 3×105 and a melting point of 60 to 80° C., composed mainly of an ethylene/vinyl acetate copolymer, or a polymer component (b) composed mainly of 99 to 50 parts by weight of the ethylene/vinyl acetate copolymer and 1 to 50 parts by weight of a polyolefin having a melting point of 120° C. or above; and conductive carbon black compounded with the polymer component (a) or (b), and a wire and cable comprising the strippable semiconductive resin composition as an outer semiconductive layer.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: September 4, 2001
    Assignee: Hitachi Cable Ltd.
    Inventors: Takanori Yamazaki, Kiyoshi Watanabe
  • Patent number: 6280841
    Abstract: A package of polyurethane elastic yarn for heat bonding which weighs more than 1 kg and measures such that the diameter-to-width ratio is greater than 0.5 and which is obtained from polyurethane elastic yarn by giving it 3.0-10.0 wt % of a finishing agent and then winding it up, said finishing agent is polypropylene glycol-based polyol used alone or composed of component (A) which is a polypropylene glycol-based polyol and component (B) which is a reaction product of a polypropylene glycol-based polyol and an organic diisocyanate compound. The finishing agent contains component (B) in an amount less than 30 wt % and have an apparent viscosity of 50-250 mPa·s at 30° C. and a surface tension of 30-45 dyn/cm.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: August 28, 2001
    Assignee: Fuji Spinning Co., Ltd.
    Inventors: Fumio Miyazawa, Nobuya Morishita, Keiko Noda
  • Patent number: 6270893
    Abstract: A fiber product of discontinuous fibers coated with a binder containing carboxyl groups and solid particles of superabsorbent material adhered to the fibers by the carboxyl group containing binder.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: August 7, 2001
    Assignee: Weyerhaeuser Company
    Inventors: Richard H. Young, Sr., Amar N. Neogi, Michael R. Hansen
  • Patent number: 6270878
    Abstract: A wipe product comprises a substrate and functional additive, preferably a high internal phase inverse emulsion, disposed in a discontinuous pattern on the substrate such that the pattern provides areas coated with the emulsion and areas free of the emulsion. When the product is wound into a roll, any two adjacent layers in the roll have their areas coated with the functional additive offset relative to each other. This improves water-retaining characteristics and roll compressibility characteristics of the product. Preferably, the functional additive of one layer is supported by the areas free of the functional additive of the adjacent layer. During the use, upon the application of pressure to the wipe, the emulsion locally expresses water useful for cleaning. The discontinuous pattern of the emulsion provides regions of the substrate which are wetted during use and regions which may remain dry. The wetted regions transfer water to the surface to be cleaned.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: August 7, 2001
    Assignee: The Procter & Gamble Company
    Inventors: George Vincent Wegele, Steven Lee Barnholtz
  • Patent number: 6265065
    Abstract: A corrosion-resistant joint for use on concrete reinforcing rods and a method to create such a joint are provided. Metal reinforcing bars are typically coated to resist corrosion. However, cutting, welding and mechanical joining of these rods disturbs the anticorrosion coating and introduces sites of potential corrosion. The corrosion-resistant joint comprises a first rod joined to a second rod with a two-layered plastic sleeve slid over the joint. A corrosion-resistant joint is created by heating the joint, causing the inner layer of the sleeve to liquefy while the outer layer shrinks, forcing the liquid inner layer into the intricacies of the joint creating a corrosion barrier. Ends of rods and regions of a rod from which the anticorrosion coating has been accidentally removed can also be protected from corrosion.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: July 24, 2001
    Inventor: James P. McCallion
  • Patent number: 6261687
    Abstract: In one embodiment, the present invention relates to a substrate for an electrical device including a coating, wherein the coating comprises an oxygen plasma resistant polymer prepared from a mixture containing a polymerization material and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor. In another embodiment, the present invention relates to a component for an electrical device comprising an oxygen plasma resistant polymer prepared from a mixture containing a polymerization material and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor. In yet another embodiment, the present invention relates to a microelectronic device comprising an oxygen plasma resistant polymer prepared from a mixture containing a polymerization material and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: July 17, 2001
    Assignee: Reliance Electric Technologies, LLC
    Inventors: Hong-Son Ryang, Young Jin Chung, Joseph T. Snyder, II, An-Min Jason Sung
  • Patent number: 6258904
    Abstract: There is provided a catalyst containing a transition metal precursor having the formula (C5R15)MX3, an alcohol, a substituted bulky phenol, an aluminoxane, and optionally a support or spray drying material. There is also provided a polymerization process employing the catalyst composition, a polymer produced using the catalyst, and a cable produced therefrom.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: July 10, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Xinlai Bai, Elizabeth Clair Fox
  • Patent number: 6248445
    Abstract: A polyamide/polyurethane composite filament yarn, contains a filament having a polyamide sheath component and a polyurethane eccentric core component exposed, through a neck portion of uniform width, on the surface of the filament. The filament is manufactured by a process comprising inserting, immediately before extruding from a spinneret orifice, a molten polyurethane flow, at an oblique angle from above, into a molten polyamide flow flowing down in a conduit, so that a small part of the polyurethane flow radially projects in a restricted width through the thinnest portion of the polyamide flowing flows down the inner wall of the conduit.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: June 19, 2001
    Assignee: Kanebo, Ltd.
    Inventors: Yukio Yamakawa, Soichiro Tanaka, Koji Itonaga, Yasushi Nakai
  • Patent number: 6248443
    Abstract: A process for the preparation of a carbon yarn product includes the steps of pyrolizing raw carbonaceous yarn comprising a plurality of carbon fibers, at a temperature above about 650° F.; flexing the pyrolized yarn to substantially break fiber-to-fiber bonding between the fibers; and, exposing the yarn to a temperature sufficient to carbonize the pre-carbonized yarn to a final and higher carbon assay. A flexible yarn element (10) includes a plurality of carbon filaments (11) wherein each filament (11) is in contact with at least one other filament 11. A sizing material at least partially coats the plurality of filaments (11), wherein the sizing material of each filament (11) is substantially separated from the sizing material of the at least one other filament (11) in contact therewith.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: June 19, 2001
    Assignee: Hitco Carbon Composites, Inc.
    Inventors: Ramon B. Fernandez, Kenneth A. DeVane
  • Patent number: 6248446
    Abstract: A non-halogenated flame-retarded covered wire is provided which includes a conductor and an insulating cover layer consisting of a first layer directly put into contact with the conductor and a second layer arranged outside the first layer, wherein the first layer is made of a flame-retarded polyolefin composition with Shore D hardness of under 60 and Oxygen Index of 24% and over, the second layer is made of a polyolefin composition with Shore D hardness of 60 and over, and thicknesses of the first and second layers are 30 &mgr;m and over and between 65 &mgr;m and 150 &mgr;m, respectively. Thus, a non-halogenated flame-retarded covered wire, which is lightweight and is capable of diameter-reducing and wherein all of abrasion resistance, flame retardance, oil resistance, and bending resistance can be satisfied as a thin layer covered wire for motor vehicle use, can be realized.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: June 19, 2001
    Assignee: Yazaki Corporation
    Inventors: Norio Kikuchi, Yasuo Kanamori
  • Patent number: 6245426
    Abstract: An electric device comprising a conductor and a porous conductor insulation impregnated with a dielectric fluid. Where the dielectric fluid comprises; a polymer; and a hydrocarbon-based fluid. The dielectric fluid being composed such that a part of the polymer molecule interacts with the hydrocarbon based fluid or another part in the polymer molecule in such a way that the dielectric fluid; at temperatures within a first low temperature range is in a highly viscous and elastic, essentially gelled, state; at elevated temperatures within a second higher temperature range, is in low viscosity easy flowing and essentially newtonian state; and that the viscosity of the dielectric fluid is, over a third limited temperature range, the transition range, changed between the low viscosity state and the highly viscous state. The transition range comprises temperatures between the first and the second temperature ranges.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: June 12, 2001
    Assignee: ABB Research Ltd.
    Inventors: Anna Kornfeldt, Bengt Kronberg