Mica Flake Patents (Class 428/363)
  • Patent number: 5866216
    Abstract: Sound absorbent fabric sleeves are formed from interthreaded, preferably braided, resilient, staple spun polymer yarns. Bulk and softness needed for sound absorption is provided through the staple fibers and resiliency desired for expansion capability and shape maintenance is provided through a resilient monofilament core. The yarns are sometimes referred to as dref mono/poly yarns. The sleeves can be heat set to better resist unraveling and maintain tubular shape. The yarns inherently resist fraying. A pressure sensitive or other adhesive layer or an elastomeric material or other material layer can be provided around all or part of the outsides of the sleeves. Spring clips can be provided extending through the tubes between the yarns to assist in mounting the sleeves or to modify them for uses other than sound absorption.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: February 2, 1999
    Assignee: Davlyn Manufacturing Co., Inc.
    Inventor: Gary L. Flasher
  • Patent number: 5858537
    Abstract: In one embodiment the article includes a metal support having a top surface, a well provided in the top surface of the support and extends downwardly into the support, the well is defined by a floor at the bottom thereof, second fibers anchored in spaced relationship in the floor of the well and extending therefrom to a level short of the top surface of the support, a diamond substrate disposed over and covering the well, the substrate is larger than the well and has portions thereof in direct or indirect contact with the support, a metal layer adhering to the substrate, first fibers anchored in spaced relationship in the metal layer and extending therefrom into the well to a level short of said well floor, the substrate being smaller than the support.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: January 12, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael A. Brown, Nelson Hyman
  • Patent number: 5856371
    Abstract: For the production of sandwich structure elements comprising non-cellular polyurethane layers and polyurethane foamed layers which are produced on a substrate by the application of layers to a substrate, it is proposed that at least the non-cellular polyurethane layers contain 15 to 55% by weight of mica. Sandwich structure elements are obtained which are particularly dimensionally accurate and which adhere well. The effect is believed to be based on a non-homogeneous curing reaction of the mixture which reacts to form polyurethane, due to the presence of mica.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: January 5, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Grimm, Heinz Hausmann, Hans Mandel, Ernst-Christoph Prolingheuer
  • Patent number: 5851613
    Abstract: An essentially homogeneous, water-resistant, water-absorbent rod, containing a cohesive spiral winding of water-resistant, water-absorbent sheet material, in which the rod can absorb at least 50% by weight of water when placed in water at 23.degree. C. for one minute. Methods for fabricating and using this rod are also described.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: December 22, 1998
    Assignee: Brandeis University
    Inventor: Daniel Perlman
  • Patent number: 5843543
    Abstract: A structure obtained by laying filaments on a convex axisymmetric surface to provide a hemispherical surface. The structure may include with a circular hole or a dead zone centered on an axis of the surface and may be formed by laying filaments along a geodesic path. The structure includes a first and second part, in which the first part includes the axis. The geodesic path formed by the filaments on the first part may be spaced a predetermined distance the opening or circular dead zone.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: December 1, 1998
    Assignee: Aerospatiale Societe Nationale Industrielle
    Inventors: Gerard Mathieu, Fran.cedilla.ois Monget
  • Patent number: 5843541
    Abstract: The present invention relates to liquid crystalline copoly(ester-imides) and a process for the preparation thereof. In particular, the invention relates to liquid crystalline copoly(esteri-imides) comprising structural units derived from N-(3'-hydroxyphenyl)-trimellitic acid imide or N-(4'-carboxyphenyl)trimellitic acid imides optionally in combination with aromatic dicarboxylic acids, dioles or hydroxy acids. The invention also concerns the use of these copolymers in polymer blends, in moulded articles, in fibres, filaments and sheets.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: December 1, 1998
    Assignee: OPTATECH Corporation
    Inventors: Heli Alanko, Hans Kricheldorf, Ari Salmela
  • Patent number: 5827430
    Abstract: A homogeneous mixture of a base and a binder material or fiber that is compressed to form a mat or sheet of selected porosity. The binder material has at least a surface with a melting temperature lower than that of the base fiber. The sheet is formed into a selected geometric shape and thermally fused to bind the base fiber into a porous filter element. The preferred shape is a helically wound tube of plural sheets, each sheet being self-overlapped and compressed to overlap another sheet. Each sheet preferably heated and compressed individually and the sheets may be selected to have different porosities and densities. The binder fiber is selected from the group consisting of thermoplastic and resin, and the base fiber is selected from the group consisting of thermoplastic and natural.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: October 27, 1998
    Assignee: Perry Equipment Corporation
    Inventors: Marney Dunman Perry, Jr., Stephen A. von Phul, Nolan Glover, H. C. Bradford, Floyd Roberts
  • Patent number: 5827585
    Abstract: An enclosure for electronic modules, comprising walls made of composite material including conductive fibers for shielding the enclosure interior from electromagnetic radiation, and means for securely mounting at least one module inside the enclosure with a fastener means, the mounting means comprising composite material.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: October 27, 1998
    Assignee: Simmonds Precision Products, Inc.
    Inventor: William Bernard Giannetti
  • Patent number: 5814386
    Abstract: The inventions relate to the field of machine manufacturing and more specifically, to shell-type construction of base members used in aviation engineering and rocketry, which operate under conditions of combined stressed state, to the methods of and mandrels for their manufacture.A load-carrying tube-shell comprises a cellular framework 1 made of spiral and annular strips 4, 5 crossing each other to define layers 3 of systems repeated over the thickness of the wall thereof so that stiffening ribs 6, 7 with criss-crosses 8, 9, 10 are thus formed, and outer coating layers 2 respectively made of unidirectional filaments 11 bound by a cured polymeric binder 12. Damping-absorbing layers 14 of resilient-elastic material such as rubber or polyurethane are disposed between the layers 3.A method of the manufacture of the tube-shell comprises a step of introducing intermediate continuous forming strips 20 placed beneath the layers 4, 5 laid down under tension.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 29, 1998
    Assignees: McDonnell Douglas Corporation, Crismb-Cat
    Inventors: Valery Vitalievich Vasiliev, Vladimir Alexandrovich Bunakov, Alexandr Fredeorovich Razin, Mikhail Sergeevich Artjukhov
  • Patent number: 5811359
    Abstract: Fire-retardant barrier structures. The fire-retardant barrier structures are useful for protecting military personnel and equipment from both fire and chemical and/or biological agents. The fire-retardant barriers are multilayer structures having desirable flammability characteristics and resistance to nuclear, chemical and/or biological agents. The preferred barriers also possess favorable durability properties and are printable.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: September 22, 1998
    Inventor: John C. Romanowski
  • Patent number: 5807914
    Abstract: The present invention relates to a glass fiber-reinforced polycarbonate resin composition comprising:(A) 70 to 92% by weight of an aromatic polycarbonate resin;(B) 1 to 20% by weight of an aromatic polycarbonate oligomer;(C) 3 to 20% by weight of a glass fiber comprising a short glass fiber having a fiber length of not more than 140 .mu.m and a long glass fiber having a fiber length of more than 140 .mu.m; and(D) 0.5 to 15% by weight of a composite rubber-based graft copolymer,halogen content in said resin composition being not more than 0.5% by weight based on total weight of said resin composition.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: September 15, 1998
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Naoto Obayashi, Tooru Watanabe, Hiroyoshi Maruyama
  • Patent number: 5804315
    Abstract: Provided is weld-obscuring, thermoplastic resin composition which when suitably molded substantially obscures the appearance of weld lines. The resin composition is made of a thermoplastic resin, about 0.01 to about 15.0 wt. % of a weld-obscuring agent having a refractive index greater than the refractive index of the thermoplastic resin in the visible light range, and about 0.1 to about 8 wt. % of glitter material having an average particle size in the range of about 5 to about 120 .mu.m. X is between (10.6-(Y/11.4 .mu.m)) wt. % and about 0.1 wt. % when Y.gtoreq.30 .mu.m, and when Y is<30 .mu.m, X is between about 0.1 wt. % and about 8 wt. %, wherein X is the amount of glitter material added and Y is the average particle size of the glitter material. Also provided is a molded article made of the resin composition.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: September 8, 1998
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masahiro Takimoto, Mayumi Maeda, Masato Kobayashi, Ikutaro Iizuka, Mitsuhiro Isomichi
  • Patent number: 5800884
    Abstract: A gloss coating composition comprising radiation curable oligomers and monomers, and photosensitizers in a homogeneous mixture having a viscosity in the range of 4500 to 8000 cps; wherein the presence of the photosensitizers causes polymerization of the radiation curable oligomers and monomers when exposed to an ultraviolet light source. The coating composition is applied to at least one surface of a substrate and exposed to an ultraviolet light source resulting in curing of the composition onto the substrate surface without substantial penetration into the substrate surface forming a gloss coated substrate.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 1, 1998
    Assignee: International Paper Company
    Inventors: Guy D'Anna, Stephen H. Monroe, Peter J. Angelini, James A. Goettmann, John R. Boylan
  • Patent number: 5798151
    Abstract: Methods and apparatus for continuously extruding a hydraulically settable mixture and simultaneously placing continuous filaments within the extruding mixture to yield articles having a filament-reinforced, hydraulically settable matrix. The filaments can be placed within the mixtures in a parallel configuration, a helical configuration, or combinations thereof, in order to yield an article having the desired properties of, e.g., tensile strength, flexural strength, hoop strength, burst strength, toughness, and elongation ability. The desired properties of the hydraulically settable mixture, as well as of the cured hydraulically settable matrix of the hardened article, may also be adjusted by including varying amounts and types of aggregates, discontinuous fibers, binders, rheology-modifying agents, dispersants, or other admixtures within the hydraulically settable mixture.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: August 25, 1998
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5795635
    Abstract: An oil hose comprised of (i) an inner layer made of a vulcanized hydrogenated nitrile rubber composition, an intermediate layer made of a vulcanized unsaturated nitrile-conjugated diene copolymer rubber composition, and an outer layer made of a vulcanized ozone-resistant rubber composition, or (ii) an inner layer made of a vulcanized rubber composition comprising a hydrogenated copolymer rubber composed of an unsaturated nitrile, a conjugated diene and a copolymerizable ethylenically unsaturated monomer, and an outer layer made of a vulcanized ozone-resistant rubber composition. This hose has good oil resistance, thermal resistance and copper ion resistance, and caulking in the portion thereof connected to a copper pipe is strong and oil leakage at a low temperature is prevented.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: August 18, 1998
    Assignee: Nippon Zeon Co., Ltd.
    Inventor: Yasunori Iwasaki
  • Patent number: 5783272
    Abstract: A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: July 21, 1998
    Assignee: Dexter Corporation
    Inventor: Raymond S. Wong
  • Patent number: 5780075
    Abstract: The present invention relates to a mandrel for manufacturing a part made from a composite material according to the filament winding technique.The mandrel includes a composite material layer whose threads are wound circumferentially round a metallic casing.The overall thermal expansion of the mandrel according to the invention is close to the expansion of the reinforcing fibers of the parts manufactured on the mandrel.The invention further relates to a use of the mandrel for manufacturing curved elongated profiles.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: July 14, 1998
    Assignee: Institut Francais du Petrole
    Inventor: Michel Huvey
  • Patent number: 5773503
    Abstract: The present invention relates to a compacted mineral filler pellet and a method of making the same. The present invention also relates to a method of making a polymeric compound which includes a compacted mineral filler pellet.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: June 30, 1998
    Assignee: Luzenac America, Inc.
    Inventors: William P. Steen, David R. Bloomfield
  • Patent number: 5773131
    Abstract: A paper product has a base body with an upper surface and a bottom surface. A primer coating is applied in the form of a primer coating mixture to at least one of the upper and the bottom surfaces of the base body. A cover coating is applied to the primer coating. The primer coating mixture is selected from the group consisting of a first composition comprised of water, amorphous silicon dioxide, aluminum dioxide, polyvinyl alcohol, and a copolymer of butadiene/styrene and acrylonitrile, and a second composition comprised of water, a silicon compound selected from the group consisting of silicic acid and silica gel, polyvinyl alcohol, and a copolymer of butadiene-styrene and acrylonitrile.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: June 30, 1998
    Inventor: Bernhard Dettling
  • Patent number: 5771680
    Abstract: A stiffened composite is provided exhibiting multi-directional reinforcement with continuous long fibers. The composite has a substrate and serpentine stiffeners adhered thereto. The stiffeners merge toward, join with and diverge from adjacent stiffeners to provide a stiffener matrix on the substrate. The serpentine stiffener permit the matrix to exhibit multi-directional reinforcement with the continuous long fibers within the serpentine ribs. The composite structures are useful as aircraft bypass ducts, and as other composite products.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: June 30, 1998
    Assignee: General Electric Company
    Inventors: Ahmad P. Zahedi, Stephen C. Mitchell
  • Patent number: 5768847
    Abstract: Concrete structures, such as beams, columns, decks, walls, and the like are reinforced by advanced fibrous composite, concrete reinforcing devices, embedded in concrete, the devices comprising, respectively, at least one continuous band of tow, yarn, or strand of high strength, high modulus, fibrous laminate material having a multitude of very fine structural filaments as laminae bonded together in endless belt formation, such band or bands forming a bar of endless belt formation having at least two length portions extending longitudinally in substantially coextensive spaced relationship as load-bearing tendons, with end portions continuing around opposite ends of the device in unbroken continuity. The tendons of the bar may be either straight or deflected and may be pre-tensioned or post-tensioned. A band may be interlaced as a continuous perimeter, mesh shell.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: June 23, 1998
    Inventor: Frederick J. Policelli
  • Patent number: 5766710
    Abstract: The biodegradable mesh and film stent for use in blood vessels is formed of a sheet of a composite mesh material formed of biodegradable high strength polymer fibers bonded together with a second biodegradable adhesive polymer, and laminated on at least one side with a thin film of a third biodegradable polymer. The biodegradable mesh and film material is formed as a sheet and cut in a shape that can be used as a stent, such as a "belt-buckle" type shape, the ends of which can be joined in a contractible, expandable loop. In the method of making the biodegradable composite mesh and film stent, the composite mesh is preferably formed from a weave formed of high strength biodegradable polymeric fibers, and a plurality of low temperature melting biodegradable polymeric fibers. In an alternate embodiment, the high strength fibers are commingled with the low temperature melting fibers. In another alternate embodiment, the high strength fibers are coated with the low temperature melting polymer.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: June 16, 1998
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Todd Hanson Turnlund, Robert Paul Eury
  • Patent number: 5763027
    Abstract: An insensitive composite pressure vessel for containing an energetic compound includes at least two fibers having different temperature resistance characteristics. A dynamic fiber loses a substantial portion of its tensile strength at a transformation temperature which is preferably substantially less than the combustion temperature of the energetic compound, whereas a stable fiber retains substantially all of its tensile strength at temperatures exceeding the transformation temperature. Hence, a pressure vessel formed of dynamic fibers and stable fibers has sufficient burst strength to resist operating pressures under normal conditions. The vessel loses strength and develops additional orifices to vent combustion products from the energetic compound in the event of an external fire, thereby allowing unintentionally ignited rocket motors to burn substantially in place.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: June 9, 1998
    Assignee: Thiokol Corporation
    Inventors: Mark L. Enders, Tony T. Robinson
  • Patent number: 5759660
    Abstract: A plastic covered article for a railing which includes an elongate core encased in a seamless, plastic casing. The casing is heat shrunk to conform with the exterior surface of the core. The core is thereby covered along its length with a weather-resistant casing which requires no periodic field maintenance.The railing articles of the present invention are fabricated by heating a tube of plastic material and causing the tube to expand. The elongate core is inserted into the expanded tube to encapsulate the core. The tube encapsulating the core is again heated to shrink the tube tightly against the core such that the tube conforms to the exterior surface of the core.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 2, 1998
    Assignee: Associated Materials, Inc.
    Inventor: Mark L. Coulis
  • Patent number: 5753330
    Abstract: A cylindrically shaped product having superior filtrability, water-permability, etc., a process for producing the same in a good efficiency, and a filter and a draining material using the same are provided, the cylindrically shaped product obtained by winding multi-component, conjugate spun-bonded long fibers, consisting of at least two components of a lower melting resin component and a higher melting resin component, the melting temperature difference therebetween being 10.degree. C. or higher, and cylindrically shaped product having been hot-melt-adhered by the lower melting resin component.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: May 19, 1998
    Assignee: Chisso Corporation
    Inventors: Taiju Terakawa, Satoshi Ogata
  • Patent number: 5753324
    Abstract: A fiber-reinforced composite cylindrical form formed by winding up unidirectional prepreg sheets around a mandrel according to such four patterns as to set the fiber winding angles of the resulting layers thereof at 0.degree., 90.degree., 40.degree. to 50.degree., and -40.degree. to -50.degree. with the longer direction thereof, and then heat-curing said layers of said prepreg sheets.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: May 19, 1998
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Kenichi Aoyagi, Hiroshi Onoda, Hidetoshi Takagi, Tetsufumi Ikeda
  • Patent number: 5753345
    Abstract: In an adsorbing body for humidity and odorous gas exchange such as an adsorbing sheet for dehumidification, an adsorbing element for dehumidification or an adsorbing element for total heat energy exchange, a sheet or a honeycomb laminate is impregnated or coated with silica sol containing, as solid content, not more than 30% of the silica sol weight of minute silica particles not larger than 120 .ANG. in diameter which contain many stable silanol radicals on the surface and 0.01-1% of alkali metal ion Na.sub.2 O. It is then dried to rigidly fix silica gel. Other humidity adsorbing or absorbing agents such as zeolite, organic high-polymer electrolyte, etc. may be mixed in said silica sol. Silica gel with excellent humidity adsorbing ability can be strongly adhered to a sheet or a honeycomb laminate in an extremely simple method.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: May 19, 1998
    Assignee: Kabushiki Kaisha Seibu Giken
    Inventors: Toshimi Kuma, Noriaki Shirahama, Hiroaki Izumi
  • Patent number: 5753024
    Abstract: Tin-containing grey pigments of high opacity, processes for their preparation and use thereof.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: May 19, 1998
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Reiner Vogt, Klaus Bernhard, Gerhard Pfaff, Matthias Kuntz, Susanne Rudolph, Sylvia Schmidt
  • Patent number: 5744206
    Abstract: Braided tubular sleeving with at least two rib strands braided into and around the circumference, optionally encased in a smooth unribbed braid, and in one aspect coated with a vermiculite coating.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: April 28, 1998
    Assignee: Vitrica, S.A. de C.V.
    Inventors: Jaime Ellstein Russek, Marcelo Mejia Garcia
  • Patent number: 5728299
    Abstract: The cartridge filter of the present invention is a filter comprising a wound and laminated composite non-woven fabric containing heat fusible fibers, wherein the delamination strength between layers of the laminated composite non-woven fabric of said filter increases continuously or discontinuously from the outer layer toward the inner layer, the delamination strength of the inner layer-exceeds 1000 gf/5 cm, and the delamination strength of the outer layer is 5 to 1000 gf/5 cm. This cartridge excels in filtering life, filtering accuracy, and pressure resistance.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: March 17, 1998
    Assignee: Chisso Corporation
    Inventors: Shinichi Tokudome, Satoshi Ogata, Katsuhiro Shishikura
  • Patent number: 5728438
    Abstract: An improved shrinkable covering made of a shrinkable plastic compound having an inlay of non-recoverable threads and recoverable threads has the recoverable threads arranged with excess length, preferably in helical form, and extending in the stretching and shrinking direction of the covering. As a consequence of this excess length, the recoverable threads are not subjected to any additional stretching during the stretching process of the covering. The recoverable threads act as "swelling agents" in the shrinking process and seal off any longitudinal capillary cavities which may be produced during the production process of the shrinkable covering.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: March 17, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hans-Juergen Meltsch, Ulrich Affolderbach
  • Patent number: 5725920
    Abstract: Fiber-reinforced resin pipes and pipe fittings have a structural pipe wall formed from helically wound reinforcing fiber that is bonded together with a polymer resin. An intermediate layer is disposed around the structural pipe wall, and a fiber-reinforced layer is disposed around the intermediate layer. The intermediate layer is formed from material selected from the group consisting of impact attenuating and impact absorbing materials. The fiber-reinforced resin layer comprises layers of helically wound reinforcing fiber bonded together with a polymer resin. The materials selected to form the fiber-reinforced resin layer can be the same or different from that used to form the structural pipe wall. The pipe may comprise a single intermediate and fiber-reinforced layer disposed around the structural pipe wall, or may comprise an impact resistant jacket disposed around the structural pipe wall, wherein the jacket is made up of alternating intermediate and fiber-reinforced resin layers.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: March 10, 1998
    Assignee: Ameron International Corporation
    Inventors: Ralph S. Friedrich, Duane G. Hemphill, Joie L. Folkers, Brian M. Francis, Gordon G. Robertson
  • Patent number: 5721030
    Abstract: A tubular member for use as a fishing rod, a golf club shaft or the like, in which the member is formed of a plurality of layers containing carbon fiber impregnated with resin, with the layers being overlaid one on another. According to the present invention, the tubular member includes an inner layer formed of carbon fiber and resin and configured into a tubular shape, an intermediate layer including a plurality of layers formed of carbon fiber and resin, and an outer layer formed of carbon fiber and resin and configured into a tubular shape. At least one of the plurality of layers together forming the intermediate layer contains pitch type carbon fiber.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: February 24, 1998
    Assignee: Shimano, Inc.
    Inventor: Muneki Okada
  • Patent number: 5718973
    Abstract: A tubular intraluminal graft for repairing body conduits, made from at least one layer of porous expanded PTFE film that has a microstructure having fibrils oriented in at least two directions which are substantially perpendicular to each other. The tubular intraluminal graft has a wall thickness of less than about 0.25 mm and may have a longitudinally or helically oriented seamline. Additional reinforcing components such as reinforcing ribs or braids may also be provided.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: February 17, 1998
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: James D. Lewis, David J. Myers
  • Patent number: 5716553
    Abstract: The disclosure relates broadly to a new class or type of electroconductive powders (ECP), designated as Polytype ECP (PECP), comprising intimate mixtures of several types of ECP powders. PECP mixtures possess a lower electrical resistivity, or a higher electroconductivity, than would be expected from the weighted average of the component ECP powders. PECP are multi-component and may contain many different types of ECP. ECP components of the PECP can be selected from at least one member of the group consisting of crystallites of tin oxide containing antimony in solid solution, crystallites of antimony-containing tin oxide with uniformly distributed amorphous silica, two dimensional networks of crystallites of antimony-containing tin oxide in a unique association with amorphous silica or silica-containing material, filler materials, metal coated powders, conventional ECP materials such as carbon, aluminum powder, among others.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: February 10, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Oswald Robert Bergmann, Carl Chen, Howard Wayne Jacobson
  • Patent number: 5711960
    Abstract: This invention provides an implant material which has high mechanical strength and durability in three-dimensional directions and a function to synchronize with deformation characteristics of surrounding biological tissues, is capable of being penetrated by biological tissues into its fabric space, and does not cause foreign body reaction or can positively connect with biological tissues, so that it can be implanted in the living body for a prolonged period of time. It uses, as a base material, a biocompatible bulk structure of a three-dimensionally woven or knitted fabric of organic fibers or a composite fabric thereof, and its void ratio in the fabric is preferably set to 20 to 90 vol %. More preferably, the surface of organic fibers which constitute the bulk structure is biologically activated or inactivated.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: January 27, 1998
    Assignee: Takiron Co., Ltd.
    Inventor: Yasuo Shikinami
  • Patent number: 5712010
    Abstract: Braided tubular sleeving with at least two rib strands braided into and around the circumference, optionally encased in a smooth unribbed braid, and in one aspect having a collar or ferrule at one or both ends. It is also a kit comprising a section of the sleeving and a collar or collars and a method of protecting tubing, hose and wire bundles with such sleeving.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: January 27, 1998
    Assignee: Vitrica, S.A. de C.V.
    Inventors: Jaime Ellstein Russek, Marcelo Mejia Garcia
  • Patent number: 5709917
    Abstract: A hollow composite rod manufactured in a pultrusion manufacturing process includes a hollow interior space that may be filled with a liquid, such as water or oil, and subsequently sealed to greatly increase the strength of a resultant rod assembly. The composite rod includes a high strength, pultruded fiber-resin jacket that, at each end, is molded about a reinforced insert to create a fluid-tight seal therebetween. Threaded access apertures are provided through either the reinforced inserts or the jacket itself, to permit the filling or draining of fluid relative to the hollow interior space. Reinforcing sleeves or caps may be molded over a portion of the jacket's exterior to improve the composite rod's resistance to cutting and chipping-type damage.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: January 20, 1998
    Inventor: Joseph Allen Carmien
  • Patent number: 5705241
    Abstract: A rod with a tubular, fibre-composite wall, cut into two parts has actively controllable, pressure- and tension-generating elements which are effective in an axial direction of the rod, provided therebetween. An exterior pressure-generating element, which effects an elongation, takes the form of a cylindrical ring and is disposed on the outside of the rod elements. For the cylindrical ring, stop shoulders are formed on the outside of each of the rod elements. A second force-generating element is disposed inside the rod. Disposed in each of the two rod elements are loops or bends which are axially fixed to the rod elements and are guided around the axially opposite ends of the second force-generating element so that they in each case overlap or extend around the end of the second element which is directed axially away from the rod element in which the loops are fixed. Upon elongation of the second element, tensile forces are exerted upon the two rod elements and draw said two rod elements together.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: January 6, 1998
    Assignee: Deutsche Forschungsanstalt fur Luft-und Raumfahrt e.V.
    Inventor: Rainer Schutze
  • Patent number: 5700533
    Abstract: The invention is directed to a fiber braid having at least a first fiber extending spirally along an imaginary axis such that the first fiber forms a predetermined angle with the imaginary axis and at least a second fiber interlaced with the first fiber and extending spirally and coaxially with the first fiber such that the second fiber and the first fiber form a tubular network, with the imaginary axis serving as the axis. At least a third fiber is added to the tubular network so that it extends in a direction parallel to the axis of the tubular network, and is interlaced through a selected number of openings in the tubular network.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: December 23, 1997
    Inventor: Chin-San You
  • Patent number: 5698278
    Abstract: A hose having an inner tube layer comprised of an elastomeric layer having embedded therein a screen mesh and a wire helix.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: December 16, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jacques Bernard Emond, Andre George Cook
  • Patent number: 5693134
    Abstract: An interference pigment comprising a platelet-shaped substrate coated with titanium dioxide and additionally oxidic compounds of copper and manganese, whereby the pigment powder color is dark gray.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: December 2, 1997
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventor: Alfred Stephens
  • Patent number: 5688571
    Abstract: An axially extending composite tubular member having a plurality of plies and having primary bending stiffness along a longitudinal axis, has at least one interior ply having a matrix material and a first fiber component with fibers oriented at an angle relative to the longitudinal axis of between thirty degrees and sixty degrees, and more particularly between forty degrees and fifty degrees. An internal weblike reinforcement spans across the tubular interior of the member between and is secured to two spaced apart wall portions. The first fiber component provides significant torsional stiffness to the composite member and the internal weblike reinforcement provides significant impact resistance to the composite member.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: November 18, 1997
    Assignee: Composite Development Corporation
    Inventors: Peter A. Quigley, Stephen C. Nolet
  • Patent number: 5686155
    Abstract: A main body of a hollow cylindrical member is formed of a wound preimpregnation sheet made of reinforcing fibers impregnated with synthetic resins. A synthetic resins layer with a metallic member is provided onto an outer periphery of the main body for reinforcing and/or decorative property. The metallic member is in the form of a thin film bonded to an outer periphery of the synthetic resins layer or a net-like metallic member embedded in the layer.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 11, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Hiroyasu Suzue, Yuichi Aizawa
  • Patent number: 5674586
    Abstract: A pressure tolerant composite panel has an inner fiber reinforced layer, an outer fiber reinforced layer and an core disposed therebetween. In one embodiment of the invention, the inner layer has weakening structures incorporated at the peripheral edges thereof, and has an outer layer of a different and lower modulus of elasticity than the inner layer to provide some degree of elongation. When high internal forces are encountered, the weakening structures allow the inner layer to separate, with the outer layers stretching to absorb the forces without failure. Optionally, strengthening straps are position about the panel such that it is compartmentalized into discrete sections to contain damage in localized areas. In an alternative embodiment of the invention, the inner core is produced of a crushable material which has a yield strength sufficient to provide structural support under normal operating conditions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 7, 1997
    Assignee: United Technologies Corporation
    Inventors: Darryl Mark Toni, Bruce Henry Barr, Edward Joseph Fabian, Bruce Fredric Kay, Joaquin Terceno, Kenneth Morgan Furnes, Alan Lee Dobyns
  • Patent number: 5665441
    Abstract: A main body of a hollow cylindrical member is formed of a wound preimpregnation sheet made of reinforcing fibers impregnated with synthetic resins. A synthetic resins layer with a metallic member is provided onto an outer periphery of the main body for reinforcing and/or decorative property. The metallic member is in the form of a thin film bonded to an outer periphery of the synthetic resins layer or a net-like metallic member embedded in the layer.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: September 9, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Hiroyasu Suzue, Yuichi Aizawa
  • Patent number: 5660901
    Abstract: An orientable in situ expandable layer comprisinga) a blend of incompatible, in situ-expandable thermoplastic particles and a thermosettable matrix resin for the in situ-expandable thermoplastic particles which blend has the capacity of expansion in height, width and length directions andb) other insoluble and matrix-resin incompatible solid particles uniformly incorporating throughout the resin matrix, which other insoluble and matrix-resin incompatible solid particles have (i) an aspect ratio of length/width greater than 1, that defines a longitudinal axis (length) of the particles which longitudinal axis is not greater than about one inch (2.54 cm.), and (ii) thermal stability at the temperature of expansion of the resin and insolubility in the resin, and (iii) an orientation in the thermosettable resin of their length in one or two directions.Moldable compositions and methods of making the compositions and molded article from the compositions are disclosed.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: August 26, 1997
    Assignee: Dexter Corporation
    Inventor: Raymond S. Wong
  • Patent number: 5646205
    Abstract: An ionomer for an ion complex membrane useful for the separation of water-organic solvent by osmosis or low pressure osmosis as well as by pervaporation and a method for producing ion complex membrane therefrom are disclosed. The ionomer for producing ion complex membrane can be prepared by heat polymerization of an alkyl compound having pyridyl groups such as 1,3-di(4-pyridyl) propane at both terminal ends with a dihaloalkane compound such as dibromooctane and dichloroheptane having two halogen atoms at both terminal ends or with one or two halogen atoms affixed to intermediate carbon atoms in a polar solvent such as acrylonitrile. An ion complex membrane can be produced by preparing a membrane of a polycation or polyanion in a solution casting method and dipping the membrane in a solution of polycation or polyanion for 24 hours to give an ion complex membrane. This ion complex membrane may be a single membrane or composite membrane. Composite membrane includes a plain membrane and a hollow fiber membrane.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: July 8, 1997
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kew Ho Lee, Jung Hoon Kim, Jong Geon Jegal
  • Patent number: 5645906
    Abstract: A cable splice case or other article for environmental sealing comprises a composite material having multifilament fibres therein, which fibres are blocked in order to prevent passage of fluid through the material in a direction parallel to its major surfaces.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: July 8, 1997
    Assignee: Raychem Limited
    Inventors: George Barry Park, Frank James Lowe, George Michael John Ganbuehler, Norman Hutt, Stephen Alan Webb, Hendrick Graulus
  • Patent number: 5639527
    Abstract: A braided wire sheathing is formed with a chrome appearance. This is done by using a silverplated wire coated with a clear enamel tinted with a preferably blue coloring material that is insufficiently present to make the wire look blue, but sufficiently present to give the wire a chrome appearance. When such wire is braided into sheathing, the sheathing also has a chrome appearance.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: June 17, 1997
    Inventor: Scott L. Hurwitz