Mica Flake Patents (Class 428/363)
  • Patent number: 5460862
    Abstract: A spacer made of plastic material for building components, having at least two spaced apart panes that are fixedly connected to one another, consists of a hollow profiled member that is positioned between the panes. The hollow profiled member has sidewalls facing the panes, an interior wall facing the interior chamber between the panes, and an exterior wall facing outwardly. At least one first insert for inhibiting water vapor diffusion is provided. The at least one first insert is embedded in the sidewalls and the exterior wall. A second insert is embedded in the interior wall and is preferably of a material that inhibits water vapor diffusion, preferably a thin-walled foil made of metal or plastic.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: October 24, 1995
    Assignee: Thermix GmbH Isolierungssysteme fur Verglasungen
    Inventor: Ulrike Roller
  • Patent number: 5437450
    Abstract: A light weight golf club shaft is disclosed which has an average weight of not greater than 1.4 g per inch and which is composed of an inner tubular layer of a carbon fiber reinforced plastic having a fiber orientation angle of 40 to 50 degrees with respect to the longitudinal axis of the shaft and an outer tubular layer of a carbon fiber reinforced plastic provided around the inner layer and having a fiber orientation angle of 5 to 30 degrees. The inner layer is obtained from a prepreg sheet by a sheet winding method, while the outer layer is obtained from a roving carbon fibers by a filament winding method. The inner layer has been hardened before the winding of the roving. A reinforcing layer obtained from a prepreg and having a fiber orientation angle of 0 to 5 degrees is provided inside of the inner layer at the tip portion of the shaft.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: August 1, 1995
    Assignee: Somar Corporation
    Inventors: Tsuneo Akatsuka, Yoshihiro Motoki, Takashi Harada, Akira Suzawa
  • Patent number: 5427741
    Abstract: Containers for materials which are to be microwave heated such as in digesting or extracting operations, are made of thermoplastic material, such as a fluoropolymer, e.g., TEFLON.RTM. PFA, that is strengthened by reinforcing means that may be a fiber reinforced thermoplastic of high tensile strength, such as polyetherimide, e.g., ULTEM.RTM., with reinforcing continuous fibers in a matrix of such thermoplastic, which fibers are preferably of glass or other heat resistant and microwave transmissive material. The containers may be strengthened by incorporating the fiber reinforced thermoplastic in a wall or walls of the container or by inserting the container into a reinforcement, which is a sleeve or collar of the reinforced thermoplastic. In both such constructions the reinforcing means protects the container against peripheral or radial failure due to pressure that is generated by the microwave heating of the container contents.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: June 27, 1995
    Assignee: CEM Corporation
    Inventor: Jonathan P. Bennett
  • Patent number: 5419949
    Abstract: A flat, heat recoverable shrink object is comprised of a plurality of core strands placed in a parallel position and each having a polymeric, thermoplastic or crosslinked core around which is coiled a high tensile strength thread such as glass, metal, cotton polyamide etc. These core strands are combined with high strength threads extending transverse to the core strands and being e.g. interwoven or looped or just superposed; All these parts are embedded in a crosslinked, heated stretched and cooled-again polymer layer whereby the coiled helices are stretched accordingly. This flat object is applied to other objects for being heat shrunk thereon. The two high strength threads tear proof the object particularly during its being made.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: May 30, 1995
    Assignee: Yabelmetall Electro GmbH
    Inventors: Karl-Heinz Marx, Franz Grajewski
  • Patent number: 5407746
    Abstract: The application relates to deagglomerated and readily dispersible platelet-like substrates with a high degree of softness, which are characterized by a content of 0.5-20% by weight of spherical particles having a small diameter in comparison with the platelet-like substrate, and to a process for their preparation and their use.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: April 18, 1995
    Assignee: Merck Patent Gesellschaft Mit Beshrankter Haftung
    Inventors: Constanze Prengel, Johann Dietz, Angelika Thurn-Muller
  • Patent number: 5405668
    Abstract: An elongated structural element having an outer tubular casing with the hollow interior space filled with a plastic binder containing a plurality of elongated parallel strands of fiber reinforcement material extending lengthwise of the element; and a method for preparing such an element by filling a preformed tubular casing with a plastic binder in liquid form dispersed in which are parallel strands of reinforcing fibrous material, and allowing the plastic binder to solidify.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: April 11, 1995
    Inventor: Hartley Sandt
  • Patent number: 5399395
    Abstract: A multi-vane structure for incorporation in an aircraft gas turbine engine has vanes of complex geometry made of braided fibers which are continuous about the cavities defined by the vanes. These complex geometry parts are prepared by providing a plurality of removable mandrels, stacking the mandrels along a horizontal axis in a cavity end to cavity end configuration, braiding about the mandrels, cutting the mandrels adjacent the cavity end faces, side stacking the mandrels so the faces are placed in a parallel orientation and molding. Utilizing braided fibers instead of hand lay-up woven fibers eliminates seams and produces cavities having continuous fibers about the periphery thereof which substantially increases the strength and dimensional reproducibly of the part.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: March 21, 1995
    Assignee: Dow-United Technologies Composite Products Inc.
    Inventors: Thomas P. Forman, Rance B. Fox, George E. Sabak, Timothy A. Sands, Paul A. Vallier
  • Patent number: 5397611
    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: August 10, 1993
    Date of Patent: March 14, 1995
    Assignee: The Dexter Corporation
    Inventor: Raymond S. Wong
  • Patent number: 5397636
    Abstract: A hybrid laminated prepreg is disclosed, which comprises a resin layer, a decorative layer laminated thereon and having a pattern, and a transparent prepreg layer laminated on the decorative layer. In manufacturing a fiber reinforced composite resin material molding, the hybrid prepreg is laminated in a couple of layers on the outermost one of laminated layers of usual prepreg. Thus, it is possible to easily decorate the obtainable molding to readily provide an aesthetic sense to the appearance of the molding and also dispense with time-consuming operation of coating or the like. Further, unlike the coating or the like, it is possible to stably hold the aesthetic sense of the appearance for long time.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: March 14, 1995
    Assignee: Tonen Corporation
    Inventors: Makiji Miyao, Osamu Watanabe, Makoto Takezawa, Hiroshi Inoue
  • Patent number: 5395665
    Abstract: Woven plastic material is formed from woven strips of laminated multi-layer plastic film. Each strip has an inner layer of synthetic plastic material with a first melting temperature and two outer layers of synthetic plastic material on opposite sides of and bonded to the inner layer, the outer layers being of a synthetic plastic material with a second melting temperature lower than the first melting temperature. The woven strips comprise longitudinally-extending strips and transversely-extending strips interwoven therewith, and the outer layers of crossing longitudinally-extending strips and transversely-extending strips are bonded together at crossing locations.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: March 7, 1995
    Inventor: Mirek Planeta
  • Patent number: 5385767
    Abstract: A golf club shaft comprising a mandrel with a tapered surface as its outer circumference which is wound with three layers of prepreg sheets of high-strength fiber impregnate with synthetic resin. The middle layer is also wound with a separate string member. The inner layer fibers and the separate string member are arranged in a criss-cross pattern running generally in the longitudinal axial direction of the shaft. However, the fibers which are part of the middle and outer layers run unidirectionally only in the longitudinal axial direction of the shaft. No fibers run in a circumferential direction. In addition, the fiber and matrix of the outer layer become transparent after curing. Thus, even when the shaft is shrunk toward the center, no zigzag or wrinkles are generated in the string member found between the middle and outer layers nor in the outer layer fibers themselves.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: January 31, 1995
    Assignee: Daiwa Golf Co., Ltd.
    Inventor: Akira Noguchi
  • Patent number: 5380571
    Abstract: A hose including at least an inner tube, a reinforcing layer and an outer cover, wherein the inner tube and the outer cover are individually composed of a thermoplastic elastomer comprising a vulcanized rubber dispersed in a thermoplastic resin, M.sub.p defined by the following formula (I) is not greater than 70 kgf/cm.sup.2, and flexural rigidity of the hose at a bending radius four times the outer diameter of the hose is 1 kgf or less: ##EQU1## wherein t.sub.1 and t.sub.2 are the thickness of the inner tube and the outer tube (mm), respectively, and M.sub.1 and M.sub.2 are stress (kgf/cm.sup.2) at 25% elongation of the inner tube and the outer cover, respectively.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: January 10, 1995
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Osamu Ozawa, Hiroyuki Miyade, Tetsu Kitami
  • Patent number: 5380360
    Abstract: Disclosed are a flaky pigment in which the surfaces of fine flaky grains, as a pigment base, have been coated with ultra-fine barium sulfate grains having a mean grain size of 0.1 .mu.m or less. The pigment is produced by a process comprising reacting:(a) an aqueous solution containing a complexing agent capable of forming a complex compound with barium ion, as dissolved therein;(b) an aqueous solution containing a water-soluble barium compound as dissolved therein; and(c) an aqueous solution containing sulfate ion. The invention involves this method of preparing the flaky pigment, and use of the pigment in pigment coloration of cosmetics, top coats for cars, plastics, printing inks, domestic electrical appliances, coating materials and coating paints for building materials.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: January 10, 1995
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Tamio Noguchi, Yumiko Waragai
  • Patent number: 5363929
    Abstract: This invention relates to a composite torque shaft for connecting a downhole fluid motor to the drill bit at the end of a drill string. The composite torque shaft comprises an elongate matrix body with oriented fibers fixed therein. The fibers are particularly oriented to provide the composite torque shaft with significant torque strength and stiffness while allowing bending flexibility. Accordingly, the composite torque shaft converts the gyrating and rotating motion of the rotor in the fluid motor to the pure rotation of the drill bit.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: November 15, 1994
    Assignee: Conoco Inc.
    Inventors: Jerry G. Williams, Monib M. Monib, Mamdouh M. Salama, David H. Schwartz, Edward G. Dew
  • Patent number: 5360503
    Abstract: The semi-finished product according to the invention consists exclusively of liquid crystal thermoplastic polymers (LCP), whereof at least one first liquid crystal thermoplastic polymer (LCP) is in the form of fibers (18) and has a given melting point, and whereof at least one second liquid crystal thermoplastic polymer (LCP) (16) has a melting point below that of the first LCP. This semi-finished product is in particular a fabric. By simply heating under pressure at a temperature equal to the melting point of the second LCP, followed by cooling, a composite material with improved mechanical and physicochemical performance characteristics are obtained.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: November 1, 1994
    Assignee: Aerospatiale
    Inventor: Rene L. Coffy
  • Patent number: 5346731
    Abstract: A fiber-reinforced rubber article has a rubber body portion with a fiber reinforcement embedded therein. The fiber reinforcement includes a plurality of tubular braided cords braided by yarns. Each of the tubular braided cords is braided by more than three yarns at a braid angle in a range between 10.degree. and 35.degree., wherein said braid angle is an angle between a yarn of the tubular braided cord and the axial line of the tubular braided cord. Each tubular braided cord also has a fistulous center hole defined by the tubular braided cord.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: September 13, 1994
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Yasuyuki Nakanishi
  • Patent number: 5340625
    Abstract: A layout and manufacturing method for fiber-reinforced, laminated composite shells utilizes as a reinforcement a nested assembly of braided sleeves. The original sleeve diameters are selected individually such that, upon being deformed into the final shape, the fibers acquire angular orientations prescribed by the shell design. Shells of desired shapes are obtained either by pulling the sleeves on a rigid mandrel or, alternately, by statically defoming the nested sleeve assembly, thereby eliminating the use of mandrels. The statical means involve proper combinations of tensile edge forces and surface loads exerted, e.g., by a pressurized bladder or by spinning the assembly. In one embodiment, the sleeves are tensioned and, if necessary, vibrated prior to matrix curing so as to force the fibers to approach geodesic trajectories (isotensoid layout). By releasing the sleeve tension after curing, a favorable compressive prestress is induced in the matrix material.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: August 23, 1994
    Inventors: Y. Jack Weitsman, Edward N. Kuznetsov
  • Patent number: 5338588
    Abstract: The present invention contemplates a method of making a hollow section fiber reinforced composite assembly useful as a structural component wherein a first rigid, fiber reinforced, EB (electron beam) curable-thermoplastic composite member is formed by liquid castable molding (LCM) thermoplastic-forming material about a fiber reinforcement and a second rigid, fiber reinforced, EB curable-thermoplastic composite member is similarly formed. An EB-curable adhesive material is provided at an interface between the assembled composite members. The composite members are then partially fusion bonded (e.g. ultrasonic tack welded) together at regions of the interface devoid of adhesive to form a hollow section for subsequent curing. The hollow section is subjected to irradiation by high energy electrons effective to cure the adhesive material and the partially bonded first and second fiber reinforced, EB curable-thermoplastic members to a thermoset condition useful in structural applications.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: August 16, 1994
    Assignee: Ticom Corporation
    Inventor: Charles R. Billiu
  • Patent number: 5338604
    Abstract: Fishing rod stock is manufactured by winding three prepreg sheets around a mandrel to form three resin layers including high strength fibers. The first resin layer is formed over an entire axial length of the fishing rod stock. The second resin layer is formed on a rearward portion of the fishing rod stock. The third resin layer is smaller than the second resin layer and formed on a rearward region of the fishing rod stock. The high strength fiber of the second resin layer has a higher modulus of elasticity than the high strength fiber of the first resin layer. The high strength fiber of the third resin layer has a higher modulus of elasticity than the high strength fiber of the second resin layer. The high strength fibers of the second and third resin layers progressively increase in quantity toward a rear end of the fishing rod stock.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 16, 1994
    Assignee: Shimano Inc.
    Inventor: Toshihiko Yasui
  • Patent number: 5334426
    Abstract: This invention provides a shaped ceramic composite article comprising ceramic oxide fiber(s), a first coating comprising a carbonaceous matrix which includes boron nitride particles in contact therewith, and a second coating comprising silicon carbide. The inventive composite article is useful in applications requiring good heat resistance and mechanical properties, such as gas fired radiant burner tubes, gas burner nozzle liners, heat exchangers, thermowells, core busters or flame dispersers, and other gas fired furnace components.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: August 2, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Robert G. Smith
  • Patent number: 5332606
    Abstract: A method of manufacturing filament-wound tubes or shafts includes drywinding a plurality of elongate mandrels with the filament, inserting the filament wound mandrels into respective elongate hollow molds of a mold complex, and injecting resin such as epoxy resin under pressure into the hollow molds into intimate contact with the filament. Heat is then supplied to the mold complex to heat the resin to a predetermined temperature and for a predetermined period of time to cure the resin and thereby form the tubes or shafts. The mandrels and tubes or shafts are removed from the hollow molds and then the mandrels are removed from the tubes or shafts. Many of these activities are carried out in parallel to increase the manufacturing throughput of the tubes or shafts.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: July 26, 1994
    Assignee: Edo Sports, Inc.
    Inventor: Terry V. Pearce
  • Patent number: 5330807
    Abstract: Composite laminated tubing with low coefficient of thermal expansion and preferably a Poisson's ratio near 0.5 is used for production tubing which is subject to substantial expansion and contraction.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: July 19, 1994
    Assignee: Conoco Inc.
    Inventor: Jerry G. Williams
  • Patent number: 5328742
    Abstract: A rod includes an inner layer and an outer layer. The inner layer is formed by winding on a mandrel a prepreg sheet including reinforcing fibers oriented axially of the rod and having a width extending over an entire length of the rod. The outer layer is formed by winding a prepreg tape including reinforcing fibers oriented longitudinally thereof. The prepreg tape is wound a plurality of times over the prepreg sheet from a tip end region to a butt end region of the rod. Adjacent winds of the prepreg tape partly overlap each other in the tip end region, and are spaced from each other axially of the rod in the butt end region.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: July 12, 1994
    Assignee: Shimano Inc.
    Inventor: Takayuki Tukihara
  • Patent number: 5319003
    Abstract: A process for making a composite article having improved mechanical properties such as fatigue life, which process comprises contacting at least one continuous filament with a mixture comprising a resin and a strain relieving polymer.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: June 7, 1994
    Assignees: Union Carbide Chemicals & Plastics Technology Corporation, Owens-Corning Fiberglas Technology Inc.
    Inventors: Jaime A. Gomez, Glenn R. Magrum, Eric R. Pohl, Frederick D. Osterholtz, Joshua B. Sweeney, Leonard J. Adzima, Martin C. Flautt, Paul R. Krumlauf
  • Patent number: 5312660
    Abstract: Fibrous substrates for the production of carbon and/or ceramic (including mixtures of these) fiber reinforced carbon and/or ceramic (including mixtures of these) composites and to methods of manufacture of same. A shaped filamentary structure comprising at least a first braided filamentary tape layer of a width generally corresponding to that of the filamentary structure to be formed, the first braided filamentary tape layer superposed upon and joined to least one other filamentary layer by needlepunching to produce cross-linking of the layers by filaments displaced out of the layers and extending in a direction generally perpendicular to the faces of the layers, and methods of making same. The structure may include a plurality of hellically wound braided tapes arranged to form a flat, hollow annulus having a plurality of interleaved braided layers. The structure may be used in the production of friction discs.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: May 17, 1994
    Assignee: The B. F. Goodrich Company
    Inventors: Edward L. Morris, Ronnie S. Liew
  • Patent number: 5304421
    Abstract: A spectacle frame component of fibre-reinforced synthetic resin comprising only a single peripheral tubular braid woven from threads made up of a number of long parallel carbon monofilaments, similar to taffeta, at an angle between 15.degree. and 45.degree. to the longitudinal axis of the component.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: April 19, 1994
    Assignee: L'Amy S.A.
    Inventors: Marc Lamy, Jean-Philippe Caspar
  • Patent number: 5300337
    Abstract: Wraparound sleeves formed by weaving, knitting or braiding for the protection of elongated articles, such as cables and hoses, are disclosed. The tubes are provided with closure means comprising multifilament, bulky yarn interlaced in the sleeving material and relatively unconfined along one of its marginal edges and of Velcro brand hook tape or similar hook type elements disposed along the other marginal edge.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: April 5, 1994
    Assignee: The Bentley-Harris Manufacturing Company
    Inventors: Hubert Andrieu, Daniel G. Caudron, Harry F. Gladfelter, Marie C. Tresslar, Denis H. T. Van Wassenhove, Michael A. Ford
  • Patent number: 5297591
    Abstract: A hollow fiber bundle in which the hollow fibers are in the form of warp threads of woven hollow fiber tapes. The plurality of hollow fibers are held together by a low density, double weft thread. The hollow fiber bundles may form an angle with the lengthwise axis of the bundle such that adjacent woven hollow fiber tapes form an angle of intersection with one another or alternatively, the hollow fiber tapes may be made into partial bundles and the partial bundles assembled together so that the hollow fibers are arranged essentially parallel to one another and the lengthwise axis of the bundle. In both cases, the presence of weft threads ensures that the hollow fibers will not slide into the spaces between adjacent hollow fibers.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: March 29, 1994
    Assignee: Akzo N.V.
    Inventor: Ulrich Baurmeister
  • Patent number: 5296168
    Abstract: An electroconductive powder composition of antimony-containing tin oxide with an outer layer of hydrous metal oxide having an isoelectric point in the range from about 5 to 9.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: March 22, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Howard W. Jacobson
  • Patent number: 5281454
    Abstract: A novel joint for connecting a closed composite adherend utilizes complementary scarf surfaces on the adherends and then bonds the adherends together. The angle of the scarf is determined by the materials used and the expected loads. Preferably, constant stiffness is achieved through the joint. In alternative embodiments, lap joint areas are included to create localized stress free zones. A method of creating the scarf surfaces utilizes a wrapping technique in which the edges of a lamina of composite material are prepared so as to provide a desired edge termination which permits each layer to be bonded to the adjacent adherend.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: January 25, 1994
    Assignee: Kaiser Aerospace & Electronics Corporation
    Inventor: Brad A. Hanson
  • Patent number: 5256459
    Abstract: A printing sleeve comprises a cylindrical tube of polymeric material reinforced with overlapping, closely touching windings of fibrous reinforcing material with at least one winding extending in each direction. The windings are wound in a helical pattern at a wind angle of about 40.degree..
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: October 26, 1993
    Assignee: American Roller Company
    Inventor: James R. Carlson
  • Patent number: 5240610
    Abstract: A flexible tubular filtering material possessing a braided cord structure wherein a number of yarns are intercrossed with each other in the right and the left directions and braided into a cylindrical form, or said material additionally with the fiber assembly layer installed around the cylindrical periphery of the filtering material, which is free of bending obstruction and shows little textural change in the outer and inner peripheries of the curved portion against bend formation, and which possesses high particle removal efficiency and long service life; and a flexible filter element comprising this filtering material in a flexible casing.They are useful for liquid filters, specifically as a fuel filter for automobiles.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: August 31, 1993
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yatsuhiro Tani, Toshiaki Hayashi
  • Patent number: 5238716
    Abstract: A composite beam having high compressive and tensile strength is disclosed. The beam is also very lightweight, has a high modulus of elasticity, and is able to support heavy loads in applications such as in use in aerial lift devices. High dielectric resistance is also a very important property exhibited by the beam. There are three structural layers in the beam including an inner layer comprising a wound filament, a middle layer comprising a plurality of plates, and an outer layer also comprising a woven or a non-woven material.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: August 24, 1993
    Inventor: Yutaka Adachi
  • Patent number: 5232775
    Abstract: A semi-conductive, static-dissipative polymeric composite comprising an insulative polymeric resin, and from about 5 to about 60 volume percent of a particulate filler having thin-film, inorganic coatings of semi-conducting material, such composites having volume resistivities of from about 1.times.10.sup.4 --to about 1.times.10.sup.14 ohm-cm. In preferred semi-conductive, static-dissipative polymeric composites, the particulate filler has a thin-film coating of a semi-conducting material selected from the group consisting of transition metal oxides, carbides and nitrides.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: August 3, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Craig S. Chamberlain, William J. Clatanoff, Christopher A. Schmolze
  • Patent number: 5227208
    Abstract: A method is disclosed for forming an integrally wound joint structure with filament wound composite structure at an adjacent end of the integrally wound joint structure and having means for attaching said integrally wound joint structure to another structure provided at other end of said joint structure. The joint structure includes filament winding over a joint tube or joint solid with appropriately sized and spaced grooves running circumferentially around the outer surface of the joint structure. A curable resin is employed in filament winding to complete an assembly which is placed in a conventional oven and allowed to cure.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: July 13, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Lawrence C. Thongs, Jr.
  • Patent number: 5217770
    Abstract: Fibrous substrates for the production of carbon and/or ceramic (including mixtures of these) fiber reinforced carbon and/or ceramic (including mixtures of these) composites and to methods of manufacture of same. A shaped filamentary structure comprising at least a first braided filamentary tape layer of a width generally corresponding to that of the filamentary structure to be formed, the first braided filamentary tape layer superposed upon and joined to least one other filamentary layer by needlepunching to produce cross-linking of the layers by filaments displaced out of the layers and extending in a direction generally perpendicular to the faces of the layers, and methods of making same. The structure may include a plurality of hellically wound braided tapes arranged to form a flat, hollow annulus having a plurality of interleaved braided layers. The structure may be used in the production of friction discs.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: June 8, 1993
    Assignee: The B. F. Goodrich Company
    Inventors: Edward L. Morris, Jr., Ronnie S. Liew
  • Patent number: 5215795
    Abstract: An shock-absorbing air bag for an automobile or aircraft, has a high heat and flame resistance and satisfactory mechanical strength and comprises a high density woven fabric composed of warps and wefts each comprising (a) 0 to 90% by weight of thermoplastic synthetic fibers, for example, polyester fibers, having a denier or 5 or less and a Young's modulus of 1300 kg/mm.sup.2 or less, and (b) 10 to 100% by weight of heat resistant organic fibers, for example, aramid fibers, having a denier of 2 or less and a thermal decomposition temperature of 300.degree. C. or more, the woven fabric preferably having a high cover factor of 1900 or more.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: June 1, 1993
    Assignee: Teijin Limited
    Inventors: Mitsuo Matsumoto, Nobuo Takahashi, Hideo Nakagawa, Masayuki Takahashi, Kunio Nishimura
  • Patent number: 5204078
    Abstract: The present invention is a method for producing swellable or nonswellable fluorine mica at a relatively lower temperature by heating a powdery mixture comprising 10 to 35% by weight of an alkali silicofluoride as the main component optionally together with an alkali fluoride and the balance of talc. This fluorine mica is used for pigments, etc.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: April 20, 1993
    Assignees: Co-Op Chemical Co., Ltd., The Agency of Industrial Science and Technology
    Inventors: Hiroshi Tateyama, Kinue Tsunematsu, Kunio Kimura, Hideharu Hirosue, Kazuhiko Jinnai, Takashi Furusawa
  • Patent number: 5204163
    Abstract: A sheet for formation of a burned pattern and a burning label are disclosed. The sheet comprises a shape retaining layer comprising an organic binder and glass powder which is retained in a sheet form by the organic binder, the shape retaining layer further comprising mica powder covered with an oxide type ceramic compound.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: April 20, 1993
    Assignee: Nitto Denko Corporation
    Inventors: Hiroshi Nakatsuka, Kazuhiro Tajiri, Takafumi Sakuramoto, Yozo Oishi
  • Patent number: 5192613
    Abstract: Electrographic recording element with reduced humidity sensitivity comprising(1) a base, e.g., paper, polymer film,(2) a conductive layer of a continuous coating of an electroconductive composition comprising(a) polymeric binder,(b) electroconductive powder comprising amorphous silica or a silica-containing material in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from 1 to about 30% by weight of tin oxide; and(3) a dielectric layer.Mixtures of two or more different sized electroconductive powder particles can be used.The electrographic recording element is useful for recording high-speed computer element, e.g., in geophysical mapping, weather map printing, architectural and engineering drawings, etc.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: March 9, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ray A. Work, III, Clifford E. Milner, Sarah J. Kintner, James E. Genthe, Stephen Strella, Charles R. Iacovella
  • Patent number: 5188872
    Abstract: A composite member (10) features a unique ply geometry which contributes to improved bending strength. The composite is constructed of a plurality of plies, each comprising a fiber component disposed within a polymer matrix. An inner ply (16) has a fiber component (18) which has fibers which are circumferentially extending. An intermediate ply (22) has first axially extending fibers (24) which are disposed about the circumference of the composite, as well as second axial fibers (30) which are interwoven with helically oriented fibers (36) and embedded in a polymer matrix (14). An outer layer (38) is similar to the inner layer as it features circumferentially extending fibers (40) which are embedded in a polymer matrix.The composite materials may be used to manufacture a wide range of items which require light weight combined with high strength.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: February 23, 1993
    Assignee: Fiberspar, Inc.
    Inventor: Peter A. Quigley
  • Patent number: 5186992
    Abstract: An expandable braided product having greatly reduced tendency to splay at its ends when cut is provided by coating the braided product with a thin layer of elastomeric material which provides the desired anti-splaying property, while retaining the expandable characteristic whereby the product expands laterally when compressed longitudinally and when released returns to its original size and shape.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: February 16, 1993
    Assignee: The Bentley-Harris Manufacturing Company
    Inventor: J. Sellers Kite, III
  • Patent number: 5183704
    Abstract: Lamellar-structured highly microporous silicate compositions are provided which can be used as insulative articles and insulation material. The silicate is in the form of lamellae selected from the group consisting of mica and vermiculite. The silicate lamellae form the microporous structure, by forming the pore walls with the lamellae. Processes are described which prepare these compositions by removing the water from flocculated or unflocculated aqueous dispersions of chemically delaminated silicates while the arrangement of the lamellae in the dispersion is largely preserved, resulting in the highly microporous lamellar structure.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: February 2, 1993
    Assignee: Armstrong World Industries, Inc.
    Inventors: Walter J. Bohrn, Kimberly S. Diffenbaugh, Shelly N. Garman, Jatin C. Khanpara
  • Patent number: 5182147
    Abstract: A composite hose comprising an inner helical core (1) made of metal, a plurality of layers of plastics material fibres and films (2, 2a, 2b, 2c) wound on the helical core (1), at least one layer of glass cloth (3) and at least one layer (4) of aluminium foil disposed adjacent one another and wound onto the layers of plastics material fibres and films (2) and an outer helical former (7) made of metallic material.In an alternative embodiment, at least one layer of ceramic fibres (5) is wound around the plastics material, which layer (5) is covered by at least one winding of a protective layer (6a; 6b).Such hoses are made by winding the layers successively one upon another on a rotating mandrel.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: January 26, 1993
    Assignee: Dantec Ltd.
    Inventor: Eric J. Davis
  • Patent number: 5178923
    Abstract: Wraparound sleeves formed by weaving, knitting or braiding for the protection of elongated articles, such as cables and hoses, are disclosed. The tubes are provided with closure means comprising multifilament, bulky yarn interlaced along one marginal edge of the sleeving material and of Velcro hook tape or other hook type elements disposed along the other marginal edge. In one embodiment of the invention, the interlaced multifilament, bulky yarn is disposed along both marginal edges with the Velcro tape fastened to one side of the bulky yarn on one marginal edge. Intermediate bands or rows of multifilament yarn may be provided so that to accommodate bundles of irregular cross-sectional tape. When the sleeving material is provided in rolls, the hooks on one side of the web interengage with the bulky multifilament yarn surface exposed on the other side of the web so that the web is held in rolled up form except when deliberately unwrapped.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: January 12, 1993
    Assignee: Textilver S.A.
    Inventors: Hubert Andrieu, Daniel G. Caudron, Harry F. Gladfelter, Marie C. Tresslar, Denis H. T. Van Wassenhove
  • Patent number: 5169442
    Abstract: The invention relates to a bluish green pigment comprising a flaky fine powder as a substrate, in which the substrate is coated with a metal oxide composite composed of oxides of magnesium, calcium, cobalt and titanium in a coated amount of from 5 to 70% by weight on the basis of the total pigment.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: December 8, 1992
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Tamio Noguchi, Yumiko Waragai
  • Patent number: 5156396
    Abstract: A light weight, high strength carbon fiber golf culb shaft includes inner, intermediate and outer tubular layers formed of carbon fiber-reinforced plastic. The intermediate layer is formed of high modulus, high strength carbon fibers having a modulus of 35000 kg/mm.sup.2 or more while the outer layer is formed of high strength carbon fibers having a modulus of 23000-30000 kg/mm.sup.2. Th carbon fibers of the intermediate and outer layers are oriented at an angle in the range of 0 to 15 degrees with respect to the longitudinal axis of the shaft, while the carbon fibers of the inner layer are oriented at an angle of 30 to 80 degrees. The weight ratio of the intermediate layer to the outer layer ranges from 15:85 to 50:50, and the weight of the inner layer is 30-60 % by weight based on the total weight of the three layers. The shaft has a rigidity of 220-240 cycles per minute in terms of frequency and a weight of 63 g or less in the axial length of 1143 mm from the tip end.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: October 20, 1992
    Assignee: Somar Corporation
    Inventors: Tsuneo Akatsuka, Yoshihiro Motoki, Takashi Harada
  • Patent number: 5154954
    Abstract: Electrical insulation which has good dielectric strength, good radiation resistance, and good thermal resistance at temperatures of up to 500.degree. C. and, preferably up to 1700.degree. C., includes a substrate which is flexible, has the form of a filament, sheet, wrapper, tape or sleeve, and consists essentially of inorganic materials selected from the group consisting of inorganic fibers and metals, metalloids, or alloys; and at least one layer of at least one oxide of an alkoxide-forming element provided on the substrate to impregnate and/or coat same. The insulation is prepared by a process including applying a solution containing an alkoxy gel polymer, optionally additionally containing at least one inorganic material in finely divided form, to the substrate to provide a treated substrate useful as a preform when allowed to set under ambient conditions.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: October 13, 1992
    Assignee: AEG Westinghouse Transportation Systems, Inc.
    Inventors: Edward J. Croop, Thomas S. Snyder, Dean C. Westervelt
  • Patent number: 5143374
    Abstract: A golf club shaft which includes a tubular inner layer formed of a first, fiber-reinforced plastic and containing a first fiber group wound at a first winding angle within the range of 20.degree.-45.degree. relative to the longitudinal shaft axis and an outer layer formed of a second, fiber-reinforced plastic and containing a second fiber group wound at a second winding angle within the range of 5.degree.-30.degree. relative to the longitudinal shaft axis, the outer layer being integrally bonded onto the outer surface of the inner layer, the first winding angle at any point in the longitudinal direction of the shaft being greater than the second winding angle at that point, the second winding angle being maximum at a point intermediate the length of the shaft and being smaller toward both ends of the shaft.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: September 1, 1992
    Assignee: Somar Corporation
    Inventor: Osamu Shibasaki
  • Patent number: 5134003
    Abstract: In a hollow cylindrical structural member consisting of resin impregnated fibers wound in alternate layers of circumferential and helical windings disposed on top of one another and having reinforcing support ring structures formed at its axial ends by additional circumferential windings, the additional windings include inner and outer layers of windings of different strength fibers wherein the fibers of the outer layers have a modulus of elasticity which is smaller than that of the fibers of the inner fiber layers so that, particularly for use with high speed rotors, the centrifugal forces do not cause separation between outer and inner layers.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: July 28, 1992
    Assignee: Uranit GmbH
    Inventor: Rudolf Hackenberg