Including Metal Or Compound Thereof (excluding Glass, Ceramic And Asbestos) Patents (Class 428/379)
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Patent number: 5804309Abstract: A charging roll which is held in contact with an outer circumferential surface of an image bearing medium for charging the surface of the image bearing medium by application of a DC voltage and an AC voltage which is superimposed on the DC voltage, the charging roll comprising: a center shaft; an electrically conductive base layer formed on an outer circumferential surface of the shaft; an outer structure formed on an outer circumferential surface of the conductive base layer; and the charging roll having Asker C hardness of less than 48 degrees as measured upon application of 1 kg load thereto and micro rubber hardness in a range of 65-85 degrees as measured upon application of 33.85 g load thereto.Type: GrantFiled: March 18, 1997Date of Patent: September 8, 1998Assignee: Tokai Rubber Industries, Ltd.Inventors: Tetsuya Itoh, Takafumi Yamamoto, Hiroki Sugiura, Atsuhiro Kawano, Wataru Imamura, Saburou Hayashi
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Patent number: 5795652Abstract: Insulated electrical cables which are suitable for use in gasoline fuel tanks comprise a stranded conductor which is blocked by a polysulfide and is covered by polyamide insulation.Type: GrantFiled: December 6, 1996Date of Patent: August 18, 1998Assignee: Raychem CorporationInventors: James Bell, Steven C. Zingheim
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Patent number: 5789080Abstract: Process for treating a body of steel to promote its adherence to a composition which includes at least a rubber, containing the following points:a body at least the surface of which is of stainless steel is used, this steel containing at least 0.02% and at most 0.2% carbon, at least 3% and at most 20% nickel, at least 12% and at most 28% chromium, the sum of the nickel and the chromium being at least equal to 20% and at most equal to 35%, all of these percentage values being by weight; the structure of the steel includes at least 20% by volume of martensite and is without austenite or it comprises less than 80% thereof by volume;the surface of the body is activated and then treated with at least one starting silane so that it is covered with a film constituted only, or substantially only, of one or more silanes, in such a manner that this surface treated in this way can be placed directly in contact with the composition.Type: GrantFiled: March 22, 1996Date of Patent: August 4, 1998Assignee: Compagnie Generale des EstablissementsInventors: Bruno Grimberg, David Lenabour, Patrice Person, Corinne Tonon
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Patent number: 5786080Abstract: Compositions and methods for the deposition of ettringite (3CaO-Al.sub.2 O.sub.3 .multidot.3Ca(SO.sub.4).multidot.30-32H.sub.2 O) onto the surfaces of fibers, aggregates, and other fillers. The ettringite is produced in situ within an aqueous suspension while in proximity to the fibers, aggregates, or other fillers to form a mineralized composite material comprising ettringite coated fibers, aggregates or other fillers. Ettringite treated fibers, aggregates, or other fillers are formed by adding chemical reactants such as calcium oxide and aluminum sulfate, which react together in the presence of water to form ettringite, which then precipitates onto the surface of the fibers or other substrates being treated.Type: GrantFiled: April 3, 1996Date of Patent: July 28, 1998Assignee: E. Khashoggi IndustriesInventors: Per Just Andersen, Shaode Ong, Simon K. Hodson
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Patent number: 5786086Abstract: A conductive wire coated with an improved electrical insulation and methods for the preparation of same. The methods involve coating a conductive wire with an insulating material that comprises a curable acrylate-modified aminoamide resin. The insulated conductive wires possess highly desirable properties, including, for example, desirable dielectric strength, heat-resistance, flexibility, mechanical properties and/or uniformity.Type: GrantFiled: January 2, 1996Date of Patent: July 28, 1998Assignee: Union Camp CorporationInventors: Charles Richard Frihart, Joseph Kliwinski
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Patent number: 5773145Abstract: A power cable is disclosed, which comprises a conductor having thereon an insulating layer which comprises a composition comprising from 25 to 35% by weight based on the total amount of the composition of an ethylene-vinyl acetate copolymer resin having a vinyl acetate content of from 25 to 33% by weight, and from 65 to 75% by weight based on the total amount of the composition of polyethylene, the polyethylene containing in the molecule thereof vinyltrimethoxysilane by copolymerization or graft polymerization, the composition containing an organo heavy metal compound as a cross-linking catalyst, the insulating layer is cross-linked by the cross-linking reaction of trimethoxysilane groups in the polyethylene in the presence of water.Type: GrantFiled: September 22, 1997Date of Patent: June 30, 1998Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yoshiyuki Inoue, Mineya Kuno, Takeshi Fukui, Shigeki Ohsawa
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Patent number: 5766761Abstract: A cable construction comprising the following components: (i) a plurality of insulated electrical conductors having interstices therebetween, said insulation comprising (a) one or more polyolefins selected from the group consisting of polyethylene, polypropylene, and mixtures thereof, and, blended therewith, (b) a mixture containing one or more alkylhydroxy-phenylalkanoyl hydrazines and one or two functionalized hindered amines; (ii) hydrocarbon cable filler grease within the interstices; and (iii) a sheath surrounding components (i) and (ii) wherein said hindered amines have the following structural formulae in which n is about 2 to about 10: ##STR1##Type: GrantFiled: December 11, 1996Date of Patent: June 16, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Jeffrey Morris Cogen, Michael John Keogh, Geoffrey David Brown
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Patent number: 5763079Abstract: A manufacturing method of combining wires and fibers to fabricate fiber reinforced composites is disclosed. The fibers are drum wound on an adhesive-coated substrate followed by coating with a barrier layer to preserve the fiber spacing. A layer of the adhesive material is then applied to the fiber wrap and wire is wound therearound. A series of increasingly viscous tacky materials can then be applied to the wire wraps so that all gaps between the wires are filled. The inventive method can be used to form standard wire/fiber preforms, variable spacing wire/fiber preforms, ring preforms and wire only preforms which can be processed into fiber reinforced composite materials.Type: GrantFiled: May 23, 1995Date of Patent: June 9, 1998Assignee: Atlantic Research CorporationInventors: William M. Hanusiak, Lisa B. Hanusiak, Jeffrey M. Parnell, Steven R. Spear, Charles R. Rowe
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Patent number: 5759688Abstract: The present invention provides an article comprising a plurality of silicon carbide containing fibers in an inhibited carbon matrix.The present invention also provides a shaped material for structural applications comprising a plurality of silicon carbide containing fibers in a carbon matrix formed by impregnating said fibers with an organic resin and staging to form a prepreg, shaping and curing said prepreg to form a laminate, carbonizing said shaped laminate to form a carbonized part, and densifying said carbonized part by chemical vapor infiltration to form a component.Type: GrantFiled: October 1, 1993Date of Patent: June 2, 1998Assignee: SGL Carbon Composites, Inc.Inventors: Sam Lee, Paul V. Mosher
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Patent number: 5759686Abstract: A vinyl chloride resin composition providing a rubbery elastic material small in temperature dependence of hardness which is composed mainly of 100 parts by weight of a vinyl chloride resin comprising 8-90% by weight of a tetrahydrofuran-insoluble gel fraction and the remainder of a tetrahydrofuran-soluble fraction, 10-200 parts by weight of a copolyester resin and 25-200 parts by weight of a plasticizer, and tubes and curl cords obtained using the composition.Type: GrantFiled: June 2, 1997Date of Patent: June 2, 1998Assignee: Sumitomo Bakelite Company LimitedInventor: Keisuke Yagi
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Patent number: 5756207Abstract: Processes for coating substrates, in particular substrates including shielded surfaces, with transition metal oxide-containing coatings are disclosed. Such processes comprise contacting a substrate with a transition metal oxide precursor, preferably maintaining the precursor coated substrate at conditions to equilibrate the coating, and then oxidizing the precursor to form a substrate containing transition metal oxide. Also disclosed are substrates coated with transition metal oxide-containing coatings for use in various applications.Type: GrantFiled: June 6, 1995Date of Patent: May 26, 1998Assignee: Ensci Inc.Inventors: Thomas J. Clough, Victor L. Grosvenor, Naum Pinsky
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Patent number: 5756208Abstract: This invention relates to a high-strength ceramic fiber composite with a high temperature stability and an improved oxidation stability and to a process for producing it.Type: GrantFiled: March 17, 1995Date of Patent: May 26, 1998Assignee: Dornier GmbHInventors: Tilman Haug, Holger Godeke, Peter Greil, Daniel Suttor
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Patent number: 5753368Abstract: The bonding between concrete and fibers is enhanced by using a fiber coating material selected from certain glycol ethers, having at least three carbon atoms in an oxyalkylene group, and glycerol ethers. The present invention pertains to such coated fibers, a method for modifying a concrete using the coated fibers, and a cementitious composition containing the coated fibers.Type: GrantFiled: August 22, 1996Date of Patent: May 19, 1998Assignee: W.R. Grace & Co.-Conn.Inventors: Neal S. Berke, Kevin J. Folliard, Awdhoot Vasant Kerkar, Brian Scott Gilbert
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Patent number: 5750255Abstract: A high strength rock wool obtained by preliminarily calcining the starting material comprising industrial wastes such as shot and the like generated in the course of the production of a rock wool in a calcination temperature region of from 1,000.degree. to 1,250.degree. C. for a time of at least 1 minute but within 60 minutes in an oxidizing atmosphere, immediately crushing and pulverizing the resulting block-shaped calcined product, introducing the resulting particle-shaped calcined product into an electric furnace to melt the same and fiberizing the resulting melt by a spinner wheels and a process for producing the same. The said rock wool has a high strength appropriate to utilize in a thermal insulation material, a sound absorbing material and various reinforcing fibers.Type: GrantFiled: July 9, 1996Date of Patent: May 12, 1998Assignee: Nitto Boseki Co., Ltd.Inventors: Shizuo Yoshida, Masakazu Tamura, Eiichi Sakamoto, Akira Okada, Atsushi Yamasawa
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Patent number: 5750225Abstract: A vapor barrier laminate for use in insulation applications as a facing material. A fiberglass yarn or scrim is positioned between layers of kraft paper. An aluminum foil is adhered directly to the outer kraft paper layer. The paper to foil bond and the paper to paper bond are accomplished with a flame retardant adhesive. The resulting heavier and thicker laminate provides increased rigidity, a smoother outer surface for better abrasion resistance, and a greater tensile strength. Use of the laminate in duct board facing improves the strength of the duct board while facilitating tape adherence for sealing gaps between board sections.Type: GrantFiled: May 26, 1995Date of Patent: May 12, 1998Assignee: Compac CorporationInventor: Charles J. Petty
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Patent number: 5750257Abstract: An insulated electrical wire coated with a polyamide-imide insulating material which is a copolymer of anhydrotrimellitic acid, aliphatic and aromatic dicarboxylic acids and a diisocyanate, with a molar ratio of the acids to the diisocyanate of from about 0.9:1.0 to about 1.1:1.0 and optionally further containing from about 1 part wt. to about 30 parts wt. of an epoxy resin per each 100 parts of the copolymer. Optionally the aforementioned insulation can be an interior, first coating, coated by a second coating of a polyamide, polyamide-imide, and when the first coat does not contain an epoxy, then a polyimide.Type: GrantFiled: June 27, 1996Date of Patent: May 12, 1998Assignees: Optec Dai-Itchi Denko Co., Ltd., Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Hideo Doshita, Masahiro Koyano, Akihiro Goto, Kazuhisa Ishimoto, Makoto Tai
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Patent number: 5731082Abstract: A cable comprising one or more electrical conductors or a core of one or more electrical conductors, each conductor or core being surrounded by a layer of insulation comprising a multimodal copolymer of ethylene and one or more alpha-olefins, each alpha-olefin having 3 to 8 carbon atoms, the copolymer having a broad comonomer distribution as measured by TREF with a value for the percent of copolymer, which elutes out at a temperature of greater than 90 degrees C., of greater than about 5 percent; a WTGR value of less than about 20 percent; a melt index in the range of about 0.1 to about 30 grams per 10 minutes; and a density in the range of 0.880 to 0.950 gram per cubic centimeter, and being prepared by a low pressure process.Type: GrantFiled: June 24, 1996Date of Patent: March 24, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Laurence Herbert Gross, Alfred Mendelsohn
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Patent number: 5725950Abstract: A process for the preparation of carbon and/or silicon coated ceramic fibers is disclosed involving contact of a preceramic fiber with a hydrocarbon or a silane which decomposes at a temperature no higher than 500.degree. C. at 1 atmosphere.Type: GrantFiled: September 19, 1986Date of Patent: March 10, 1998Assignee: Hoechst Celanese Corp.Inventors: Paul Foley, Linda C. Sawyer
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Patent number: 5725953Abstract: An insulating material comprised of a benzimidazole-based polymer layer and a fluorine-containing rubber layer. This material is heat-resistant and is especially useful for use in electric wires. To manufacture such wires, a varnish solution is prepared by dissolving partially polymerized benzimidazole-based polymers in a solvent, then adding a polymerization initiator thereto. Subsequently, an electric wire is soaked in the solution and heated to cross-link the benzimidazole-based polymers. By repeating this procedure, the electric wire is coated with any desired thickness of a benzimidazole-based polymer layer. This coated wire is further coated with a fluorine-containing rubber layer to obtain a heat-resistant electric wire that is also resistant to dielectric breakdown.Type: GrantFiled: May 17, 1996Date of Patent: March 10, 1998Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasuhiko Onishi, Takashi Itoh, Yoshihiro Tamura
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Patent number: 5721047Abstract: Discrete carbon or other electrically conductive fibers are added to a fluid formulation of settable resin in a bath, and a number of tows of non-conductive fibers, for example glass, are drawn through the bath, entraining and partly aligning the conductive fibers and being wetted by the resin. The tows are then bunched into a bundle, causing most of the conductive fibers and concentration zones to render the moulded product conductive to electrostatic charge.Type: GrantFiled: January 25, 1995Date of Patent: February 24, 1998Assignee: Applied Research of Australia Pty LtdInventors: Edward Philip Thicthener, Peter John Hastwell
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Patent number: 5718974Abstract: A cable comprising one or more communications media or electrical conductors, or a core of two or more communications media or electrical conductors, each communications medium, electrical conductor, or core being surrounded by at least two layers, an inner insulating layer and an outer jacketing layer, is disclosed. The jacketing layer comprises an in situ blend of two copolymers of ethylene and one or more alpha-olefins having 3 to 12 carbon atoms. The blend has an Mw/Mn ratio in the range of about 8 to about 22; a melt index in the range of about 0.2 to about 3.5 grams per 10 minutes; a melt flow ratio in the range of about 55 to about 135; a molecular weight in the range of about 90,000 to about 250,000; and a density of at least 0.915 gram per cubic centimeter.Type: GrantFiled: June 24, 1996Date of Patent: February 17, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Chester J. Kmiec
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Patent number: 5712034Abstract: A rubber article has a body consisting of rubber and a reinforcement structure with cables embedded in the rubber body. The cables have at least one inner layer with at least one first filament wherein at least one first filament consists of a metallic alloy. The outermost layer has second filaments embedded adhesively in the rubber body. All of the first and second filaments that consist of a metallic alloy are coated with a corrosion-protective coating. The corrosion-protective coating for at least one of the first filaments consists of an intrinsically conductive polymer.Type: GrantFiled: June 26, 1996Date of Patent: January 27, 1998Assignee: Continental AktiengesellschaftInventors: Hendrik Stevens, Bernd Kaiser, Klaus Kleinhoff
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Patent number: 5709943Abstract: The present invention provides biological assay and adsorption supports comprising an inert substrate supporting a nanostructured surface comprising metal coated, oriented, discrete submicron-size whiskers. Optionally, conformally metal coated whiskers may be partially encapsulated or conformally coated with a second material. The nanostructured surface adsorbs biomolecules rapidly at high levels of tight binding without vortexing or agitation. Advantageously, the bound biomolecules retain their biological activity.Type: GrantFiled: May 4, 1995Date of Patent: January 20, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Patrick L. Coleman, Mark K. Debe, Julie B. Stahl
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Patent number: 5710475Abstract: Metallic conductors of electricity, such as stator bars in turbine generators, are coated with an insulating composition comprising a high temperature-resistant thermoplastic resin, such as a polyimide or polyethersulfone, having uniformly dispersed therein boron nitride or aluminum nitride in a proportion effective to provide a high thermal conductivity. Boron nitride is preferred by reason of its extremely high thermal conductivity, viscosity-decreasing properties and other advantages.Type: GrantFiled: November 22, 1995Date of Patent: January 20, 1998Assignee: General Electric CompanyInventors: Patricia Chapman Irwin, Charles Edward Baumgartner, Donald Allen Bolon
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Patent number: 5707753Abstract: A pulse generating element formed of a switchable magnetic wire is worked so as to have an arcuate shape such that the ratio R/d between the radius of curvature R and diameter d of the wire in a state free from external force ranges from 65 to 95. This is achieved by subjecting a wire of a ferromagnetic material, such as Fe--Co--V, to drawing-bending work. The pulse generating element, which is obtained by cutting the switchable magnetic wire to a predetermined length, is restricted to a substantially straight state by a retaining member, and undergoes a drastic flux reversal when it is subjected to an alternating field.Type: GrantFiled: November 2, 1995Date of Patent: January 13, 1998Assignee: NHK Spring Co., LtdInventors: Tatsuya Kurihara, Itsuo Takeuchi, Tsukasa Higashi, Hajime Arai
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Patent number: 5698323Abstract: A cable comprising one or more electrical conductors or communications media, or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a composition, which is essentially halogen and antimony free, comprising:(a) a copolymer of ethylene and an unsaturated ester comonomer selected from the group consisting of:(i) an alkyl acrylate;(ii) an alkyl methacrylate; and(iii) a vinyl carboxylatewherein (A) the alkyl group has 1 to 8 carbon atoms and the carboxylate group has 2 to 8 carbon atoms;(B) the copolymer is, optionally, modified with an anhydride of an unsaturated aliphatic diacid having 4 to 20 carbon atoms;(C) the copolymer has an ester content in the range of about 5 to about 50 percent based on the weight of the copolymer and a melt index in the range of about 0.Type: GrantFiled: March 28, 1996Date of Patent: December 16, 1997Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Michael John Keough, Sundaresan Ramachandran, Geoffrey David Brown
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Patent number: 5691058Abstract: An electrically insulated coil, characterized in that an electrical insulation layer wound around an electrical conductor is formed by laminating layers of glass flakes having a thickness of 0.2-1 .mu.m and a diameter of 40-250 .mu.m on a backing member of a sheet-like electrical insulation material and by impregnating with a semi-cured thermosetting resin. An electrically insulated coil is provided, having an excellent partial discharge resistance as well as having a high dielectric break down strength even when subjected to a large mechanical distortion.Type: GrantFiled: January 9, 1995Date of Patent: November 25, 1997Assignee: Hitachi, Ltd.Inventors: Hiroshi Miyao, Yutaka Higashimura, Makoto Takamura, Takanori Satoo, Hiroyuki Kamiya, Mitsuru Onoda
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Patent number: 5688601Abstract: An electrical component comprising an electrical component having an exterior protective layer on at least a portion of a surface. The layer is a cured copolymer of a reaction between at least one oligomer having a terminal ethylenically unsaturated group and at least one monomer having a terminal ethylenically unsaturated group. Alternatively, the layer is a cured copolymer of a reaction between at least two oligomers having a terminal ethylenically unsaturated group. The copolymerization reaction is preferably in the presence of a free radical initiator curing agent and a transition metal catalyst.Type: GrantFiled: March 25, 1994Date of Patent: November 18, 1997Assignee: Caschem, Inc.Inventors: Douglas A. Usifer, Melvin Brauer, James C. Chang, Yuan Chieh Chu
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Patent number: 5688597Abstract: A tire cord which is improved in rubber penetration. The cord has at least four filaments twisted together so as to form a core and a sheath surrounding the core. The filaments change place repeatedly along the longitudinal direction of the cord such that one of the filaments forms the core in a portion, but in a different portion of the cord, the same filament forms part of the sheath.Type: GrantFiled: August 1, 1995Date of Patent: November 18, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Masatsugu Kohno
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Patent number: 5688596Abstract: An aromatic polyamide filament includes extremely fine inorganic material having a high refractive index of 2.0 or more and an extremely fine average particle size of 0.3 .mu.m or less and dispersed, in an amount of 0.1 to 5% based on the total weight of the filament, in at least a surface portion of an aromatic polyamide filament matrix; has an individual filament thickness of 0.5 to 50 deniers, a tensile strength of 18 g/d or more, an ultimate elongation of 3.5% or more and an initial modulus of 450 g/d; and exhibits an enhanced weathering resistance derived from the high ultraviolet ray-reflecting, shielding and absorbing properties of the extremely fine inorganic particles dispersed in the filament matrix.Type: GrantFiled: March 20, 1995Date of Patent: November 18, 1997Assignee: Teijin LimitedInventors: Osamu Makino, Toshitsugu Matsuki, Toshihiro Santa
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Patent number: 5674614Abstract: A varnish-coated electric wire includes cured coatings of polybenzimidazole. The polybenzimidazole coatings are cured utilizing a polymerization initiator. The varnish-coated electric wire has a high heat-resistance.Type: GrantFiled: June 1, 1995Date of Patent: October 7, 1997Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yasuhiko Onishi, Kazuo Iura, Atsushi Maeno, Takashi Itoh, Kazunori Tsuji
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Patent number: 5665463Abstract: Thermodynamically stable ceramic composites are provided for use in high temperature reactive environments. A phosphate selected from monazites and xenotimes functions as a weak bond material in the composite. Monazite comprises a family of minerals having the form MPO.sub.4, where M is selected from the larger trivalent rare earth elements of the lanthanide series (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, and Tb) and coupled substituted divalents and tetravalents such as Ca or Sr with Zr or Th. Xenotimes are phosphates similar to monazite where M is selected from Sc, Y, and the smaller trivalent rare earth elements of the lanthanide series (Dy, Ho, Er, Tm, Yb, and Lu).Type: GrantFiled: January 26, 1996Date of Patent: September 9, 1997Assignee: Rockwell International CorporationInventors: Peter E. D. Morgan, David B. Marshall
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Patent number: 5654100Abstract: An offset rubber-blanket sleeve having a support sleeve in the form of a layered body. The layered body is produced from a plastic, preferably rubber, as a base material and the base material is reinforced by layer inserts embedded therein. Additionally, a rubber layer is vulcanized on the support sleeve.Type: GrantFiled: May 31, 1996Date of Patent: August 5, 1997Assignee: MAN Roland Druckmaschinen AGInventors: Ingo Kobler, Eduard Hoffmann, Wolfgang Prem
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Patent number: 5654089Abstract: Clad fibrous vanadium pentoxide, antistat layers containing clad fibrous vanadium pentoxide and imaging elements containing such antistat layers.Type: GrantFiled: June 7, 1995Date of Patent: August 5, 1997Assignee: Eastman Kodak CompanyInventor: Sylvia Alice Gardner
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Patent number: 5654095Abstract: A pulsed voltage surge resistant magnet wire comprising a conductor, a continuous and concentric and flexible uniform coat of base insulation material superimposed on the conductor and an essentially continuous and concentric and uniform pulsed voltage surge shield overlaying the coat of base insulation material.Type: GrantFiled: June 8, 1995Date of Patent: August 5, 1997Assignee: Phelps Dodge Industries, Inc.Inventors: Weijun Yin, Donald J. Barta
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Patent number: 5654098Abstract: A superconducting wire saved in weight and enhanced in mechanical properties is provided without damaging electric and thermal characteristics as an Al stabilizer, and further a method for producing the same, a high strength Al sintered alloy and powders used for the process are provided. A superconducting wire comprising an Al alloy of a high purity Al in which a small amount of ceramic ultrafine particles are dispersed and superconducting filaments embedded in the Al alloy, in which a large number of the ceramic ultrafine particles are dispersed in the area of 1 .mu.m.sup.2, and the areas of 1 .mu.m.sup.2 in which a large number of the ceramic ultrafine particles are dispersed, are formed over nearly the whole of the alloy.Type: GrantFiled: June 7, 1996Date of Patent: August 5, 1997Assignee: Hitachi, Ltd.Inventors: Yasuhisa Aono, Fumio Iida, Shinzo Ikeda, Takahiko Kato, Masakiyo Izumiya, Hideyo Kodama
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Patent number: 5654062Abstract: The present invention relates to an insulating composition for electrical cable comprising a mixture of an ethylene-alkyl acrylate or ethylene-vinyl acetate copolymer and of a polymeric compound, said polymeric compound being an ethylene-alkyl acrylate-maleic anhydride terpolymer or an ethylene-vinyl acetate-maleic anhydride terpolymer, and usual additives such as, for example, a crosslinking agent, its use for the preparation of an insulation sheath of electrical cables and the insulation sheath obtained.Type: GrantFiled: June 7, 1995Date of Patent: August 5, 1997Assignee: Elf Atochem S.A.Inventors: Jean Michel Chabagno, Gerard Junca, Philippe Montagne, Jean Pourtau
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Patent number: 5650208Abstract: A laminated window includes at least one rigid external substrate (5) and a sheet made of flexible plastic material (6) which is adjacent to the substrate (5). The window is equipped with an electrostatic protection circuit which is capable of dissipating the charges which have accumulated on the external sheet (7). This circuit includes conducting elements (2) which cross through at least the substrate and at least one part of the sheet made of plastic material (6). The conducting elements (2) are connected to a collector element (3) which is connected to the ground (4) and embedded in the sheet made of flexible plastic material (6).Type: GrantFiled: June 26, 1995Date of Patent: July 22, 1997Assignee: Saint-Gobain VitrageInventors: Pierre Chaussade, Thierry Mannevy-Tassy
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Patent number: 5648168Abstract: A corona electrode, such as a roller electrode, having an outer dielectric layer and an undercoat of a copper layer that permits the electrode to operate at a lower temperature for a specific power input over a similar electrode without the copper undercoat.Type: GrantFiled: January 18, 1996Date of Patent: July 15, 1997Assignee: Praxair S.T. Technology, Inc.Inventors: Russell Bruce Hatch, Keith Edward Bowen
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Patent number: 5639549Abstract: Disclosed is a fixing roll, comprising a core metal, a heat resistant elastic layer formed to cover the circumferential outer surface of the core metal, and a surface layer formed to cover the circumferential outer surface of the heat resistant elastic layer, the surface layer being formed of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin film of a double layer structure consisting of an inner layer having a volume resistivity of 10.sup.11 .OMEGA..cm or less and an outer layer having a thickness falling within a range of between 3 .mu.m and 50 .mu.m, and the entire thickness of the resin film falling within a range of between 20 .mu.m and 500 .mu.m.Type: GrantFiled: May 8, 1992Date of Patent: June 17, 1997Assignee: Kinyosha Co., Ltd.Inventors: Noritomo Fukunaga, Michiyoshi Kurosawa
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Patent number: 5620798Abstract: A new design for an aluminum stabilized superconductor which embeds the superconducting cable within a high purity aluminum stabilizer. This stabilizer is, in turn, partially surrounded by an aluminum alloy sheath. The aluminum alloy sheath is constructed and arranged so that at least one exterior surface of the stabilizer is open for exposure to a coolant. Preferably, this open exterior surface of the stabilizer will be knurled for greater cooling efficiency.Type: GrantFiled: May 17, 1995Date of Patent: April 15, 1997Assignee: The Babcock & Wilcox CompanyInventors: Xianrui Huang, Gregory A. Lehmann, Yury Lvovsky, Ronald G. Wood
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Patent number: 5614319Abstract: There is disclosed an insulating composition comprising a mixture of a polyolefin, such as polyethylene or polypropylene, and a partially fluorinated copolymer such as ethylene-chlorotrifluoroethylene (ECTFE) or ethylene-trifluoroethylene (ETFE) in an amount from about 3.0% to about 50% by weight polyolefin. Such mixture may be used as either a solid or foamed insulation over a metallic conductor in a plenum-type communications cable. Such an insulation has been found to have improved mechanical and electrical properties over insulations consisting of 100% ECTFE or ETFE. Specifically, the insulation exhibits improved elongation performance and lower dielectric constant and dissipation factor values. These insulated wires may be used in the transmission of electronic signals, such as voice, data or video, and possess unique properties in electrical, fire safety and cost performance.Type: GrantFiled: May 4, 1995Date of Patent: March 25, 1997Assignee: CommScope, Inc.Inventors: Rob Wessels, Gary Craton, Neeli Soundararajan
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Patent number: 5599624Abstract: Fibers having reduced surface roughness have a continuous coating of a silicone resin that undergoes pyrolysis in hydrogen or helium to form a hard, amorphous solid coat containing silicon, oxygen, and carbon. This silicon oxycarbide glass coating has exceptional high temperature strength and chemical stability compared to even vitreous silica. The coating is resistant to crystallization and oxidation at temperatures above 1000.degree. C.Type: GrantFiled: July 3, 1995Date of Patent: February 4, 1997Assignee: General Electric CompanyInventor: Svante Prochazka
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Patent number: 5595801Abstract: A shielding system for an enclosure wherein strips of shielding material including a layer of metal, for example, metal foil or gauge metal, are placed on the walls of the enclosure in an overlapping or abutting relationship, with shielding tape between the overlapped portions or overlying the butted seam. The shielding tape preferably consists of an electrically conductive nonwoven mat of entangled fibers which is laminated on one side to metal foil and which is bonded on the other side to the metal substrates using nonconductive adhesive. The entangled fibers penetrate the nonconductive adhesive and contact the surface of the metal substrate to provide an electrical continuity that seals the seam against leakage of electromagnetic radiation.Type: GrantFiled: September 3, 1993Date of Patent: January 21, 1997Assignee: International Paper CompanyInventors: Lawrence J. Fahy, Peter J. Angelini, David A. Diermeier, John Marconi
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Patent number: 5591524Abstract: The invention relates to a yarn guidance rod and to a device for the laying of a yarn on a cross-wound bobbin in a textile machine. A plurality of winding stations installed next to each other is serviced by a yarn guidance rod made of a carbon fiber reinforced plastic which can be moved back and forth. The yarn guidance rod is provided with a sheathing. The yarn guidance rod has segments made of a highly heat-expandable material in order to achieve heat compensation as compared with the textile machine.Type: GrantFiled: March 27, 1995Date of Patent: January 7, 1997Assignee: Rieter Ingolstadt Spinnereimaschinenbau AGInventors: Romeo Pohn, Siegmar Braun
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Patent number: 5571621Abstract: An infrared radiation-interactive article comprising a supported or unsupported oxidizable metal film of an infrared radiation-interactive size and shape, with an oxidation-promoting salt in contact with the metal film, arranged so that in exposure to ambient moisture, the metal film is oxidizable to an infrared radiation non-interactive form. The article of the invention may be employed to carry out a method of generating a transient infrared radiation response, e.g., an infrared radiation reflectance signature, or infrared radiation absorption, at a selected locus receiving infrared radiation incident thereon, by disposing at the locus an infrared radiation interactively-effective amount of such infrared radiation-interactive article.Type: GrantFiled: June 7, 1995Date of Patent: November 5, 1996Assignee: Advanced Technology Materials, Inc.Inventors: Ward C. Stevens, Edward A. Sturm
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Patent number: 5567516Abstract: The textile silica sliver is produced by a continuous process of the dry spinning of sodium silicate filament yarn, direct formation of sodium silicate silver by the drum drawing process, transformation to textile silica sliver in a post-treatment line, and direct winding on of the sliver. The various textile products manufactured from textile silica slivers or staple fiber yarns made therefrom are suitable for application in insulation and heat protection up to 1100.degree. C., substitute for asbestos and improve energy efficiency.Type: GrantFiled: May 10, 1995Date of Patent: October 22, 1996Inventor: Hans-Dieter Achtsnit
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Patent number: 5567505Abstract: Means for applying a plastic finishing layer to the surface of a composite article comprising an extruded plastic-based solid body reinforced by one or more bundles of reinforcing fibers, these bundles being affixed to its surface, comprising a ring (1), the entry diameter (2) of which is greater than its exit diameter (3), the internal surface (4) of the said ring furthermore providing a decreasing variation in the internal diameter between its entry and its exit; method of applying a finishing layer, in which method these means are used, and coated composite article.Type: GrantFiled: August 14, 1995Date of Patent: October 22, 1996Assignee: Solvay (Soci et e Anonyme)Inventors: Claude Dehennau, Serge Dupont
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Patent number: 5567537Abstract: A magnetic core element for use in a thin antenna. The magnetic core element has a thickness of 25 .mu.m or less and is made of a particular amorphous alloy strip or a particular nano-crystalline alloy strip. A thin antenna having a laminated magnetic core made of the magnetic core elements is highly resistant to deformation and has a high Q-value.Type: GrantFiled: April 11, 1995Date of Patent: October 22, 1996Assignee: Hitachi Metals, Ltd.Inventors: Yoshihito Yoshizawa, Shunsuke Arakawa
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Patent number: 5560986Abstract: A composite of a thermoplastic copolymer of tetrafluoroethylene and perfluoro(propyl vinyl ether), and a porous membrane of polytetrafluoroethylene, at least a portion of the thermoplastic copolymer being dispersed within the pores of the porous polytetrafluoroethylene. The composite is useful as insulation for wire and cable.Type: GrantFiled: May 31, 1994Date of Patent: October 1, 1996Assignee: W. L. Gore & Associates, Inc.Inventor: William P. Mortimer, Jr.