Wound Or Wrapped Core Or Coating (i.e., Spiral Or Helical) Patents (Class 428/377)
  • Patent number: 5087327
    Abstract: A composite yarn for use in a papermaker's fabric, for the press section of a papermaking or similar machine, is disclosed. The composite yarn includes a core substantially surrounded by a layer of monofilament. The core is at least partially soluble. On the other hand, the monofilament layer is non-soluble and is either braided, knitted, or helically wound around the core. After the base fabric, woven from the composite yarns, has been needled, the soluble portion of the core is washed out, supplying an increase in void volume to the finished fabric.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: February 11, 1992
    Assignee: Albany International Corp.
    Inventor: Paul F. Hood
  • Patent number: 5077113
    Abstract: A filament-reinforced resinous structural rod having a rugged periphery thereof comprises a reinforcing fibrous member impregnated with a polymeric resinous material and comprising a core element composed of a plurality of filament bundles bundled together, a binding element comprising a filament bundle spirally wound around the core element, a plurality of filament bundles arranged in parallel to each other on and along the core element, and a filament bundle spirally wound around the assembly of the core element bound with the wound filament bundle and the plurality of filament bundles in parallel to the filament bundle wound around the core element.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: December 31, 1991
    Assignee: Teijin Limited
    Inventors: Ryuichi Kakihara, Sumio Nishioka, Naohiko Shindo, Kunihiro Mukae, Shin-ichiro Kumagai
  • Patent number: 5069957
    Abstract: The invention relates to a fire resisting elastic strap designed, for furnishing purposes, to serve in the making of seat or bed suspensions satisfying criteria for safety in the event of fire.The strap is formed by weaving elastic threads placed in the warp and/or in the weft. According to the invention, the elastic thread has a core (4) of elastic material and a continuous longitudinally deformable cladding of fire resistant material. The cladding is preferably formed by wrapping in opposite directions two threads (6 and 7) of fire resisting material such as FR viscose.The invention primarily concerns the textile industry.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: December 3, 1991
    Assignee: S.A.R.L. "Matiba-Manufactures de Tissus"
    Inventor: Edmond Vandermeersch
  • Patent number: 5049425
    Abstract: This invention consists of a pintle for use in closing the pin seam of an on-machine-seamed (OMS) press fabric. The pintle takes the form of a braided, knitted, or ply-twisted yarn whose components are monofilaments of various and/or varying diameter. It has an essentially circular cross section for ease of installation, but will flatten in use to an oblate shape closely conforming to that of the void shape formed by the loops at the end of the press fabric and leaving little or no gap when the seam is closed and under tension. Its porous structure allows the passage of water. In this way, the completed seam will more closely resemble the main body of the press fabric.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: September 17, 1991
    Assignee: Abany International Corporation
    Inventor: Klaus M. Essele
  • Patent number: 5035111
    Abstract: The invention relates to combinations of polymer filaments or yarns of high tensile strength, high modulus and low coefficients of friction and filaments or yarns of high coefficients of friction. Combinations of this type, which have been produced in particular by core spinning the filaments or yarns of low coefficient of friction with filaments or yarns of high coefficients of friction or by twisting the two filament or yarn components, are suitable in particular for producing bulletproof wovens, knits and nonwovens.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 30, 1991
    Assignee: Stamicarbon B.V.
    Inventors: Eric H. M. Hogenboom, Peter Bruinink
  • Patent number: 5023395
    Abstract: A cable shielding tape is produced by laminating a single layer of an insulating material film which may be plastic to a conducting layer which may be of metallic foil with one edge of the conducting layer offset laterally with respect to said insulating layer, leaving a foil free edge portion of the insulating layer along one edge of the tape. This can be manufactured by laying the insulating layer tapes in a shingled formation, laminating a web of foil over the tapes and then separating the tapes each with a partial covering of the foil. The conducting layer and insulating layer are coterminous at the opposite edge and both are folded back with the conducting layer outermost.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: June 11, 1991
    Assignee: KT Technologies Inc.
    Inventor: Lawrence J. O'Connor
  • Patent number: 5016516
    Abstract: Preforms and composite articles from carbon fiber reinforced matrix resins braided to shape on a mandrel and then converting to a final composite article by fully or partially curing in a mold followed by post curing if required.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: May 21, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Donald C. Aldrich, Robert C. Buchanan, John F. Sollinger
  • Patent number: 5009941
    Abstract: A thermoplastic impregnated fiberglass pipe or tube and the process for making such pipe are disclosed. The pipe or tube is made of thermoplastic impregnated fibrous roving which consists of a plurality of glass filaments, at least a portion of the filaments' surfaces being in contact with the residue produced by evaporating water from an aqueous size composition consisting of an organosilane coupling agent, a polyethylene oxide binder material, and a polypropylene thermoplastic polymer resin, wherein the composition is applied to the glass fiber during the fiber forming process. The pipe forming process includes filament winding the rovings around a spindle and thereafter heating the wound rovings to fuse the thermoplastic polymer resin.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: April 23, 1991
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jean-Claude Pollet, Gary L. Williams, Gordon P. Armstrong, David G. Miller
  • Patent number: 4977017
    Abstract: To permit a woven tape to be used to form cigarettes and filters in cigarette-making machines at least one strand of line fibers and at least one aramid strand, which is made of multifilament aramid fibres, have been twisted together to form a warp thread. This design permits an improvement to tapes for use as a heavy-duty garniture tape, which will meet even very high requirements while for filling the requirements for economical mass production.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: December 11, 1990
    Assignee: Max Schlatterer GmbH & Co. KG
    Inventor: Manfred Schneider
  • Patent number: 4975317
    Abstract: Fabrics are made electrically conductive by contacting the fabric under agitation conditions with an aqueous solution of a pyrrole or aniline compound, and an oxidizing agent and a doping agent or counter ion; and then epitaxially depositing onto the surface of the individual fibers of said fabric the in status nascendi forming polymer of the pyrrole or aniline compound so as to uniformly and coherently cover the fibers with an ordered conductive film of the polymerized pyrrole or aniline compound. Individual fibers and yarns can be similarly treated and then formed into fabrics. Products made by the process are also described.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: December 4, 1990
    Assignee: Milliken Research Corporation
    Inventors: Hans H. Kuhn, William C. Kimbrell, Jr.
  • Patent number: 4969497
    Abstract: Strand for application as reinforcement in objects of polymer material comprising at least one core and less than six outside wires arranged round it, the core having an outside diameter larger than the diameter of the circle tangent to each of the outside wires in the hollow space that remains free when their cross-sections have the highest packing density and smaller than the diameter of the outside wires, whereby the outside wires are made of carbon steel wire with a tensile strength of at least 2250-1130 log d N/mm.sup.2, d being the wire diameter in mm.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: November 13, 1990
    Assignee: N.V. Bekaert S.A.
    Inventor: Luc Bourgois
  • Patent number: 4966809
    Abstract: Disclosed is a water-absorbing composite body comprising a tape-shaped laminate having at least one layer of a high-melting-point synthetic resin and at least one layer of a low-melting-point synthetic resin, in which at least a part of the low-melting-point synthetic resin layer is exposed to the surface, a split fiber obtained by splitting this tape-shaped laminate or a composite fibrous body having a laminate structure as described above, and a powdery polymeric water absorber fusion-bonded to the outer surface of the low-melting-point synthetic resin layer exposed to the surface. This water-absorbing composite body has a high water-absorbing capacity and retains a good mechanical strength.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: October 30, 1990
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Toyoaki Tanaka, Katuzi Ohira, Akira Nakamura, Ryosuke Kamei, Akihiro Hashimoto
  • Patent number: 4958485
    Abstract: The corespun yarn is formed on a friction spinning apparatus and comprises three components, including a core of high temperature resistant fibers, a core wrapper of low temperature resistant fibers surrounding and covering the core, and an outer sheath of low temperature resistant fibers surrounding and covering the core wrapper and the core. The high temperature resistant fibers of the core are selected from the group consisting essentially of aramid fibers (Kevlar and Nomex), and polybenzimidazole fibers (PBI). The low temperature resistant fibers of the core wrapper and the outer sheath are either natural or synthetic fibers, such a cotton and polyester.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: September 25, 1990
    Assignee: Springs Industries, Inc.
    Inventors: Terry G. Montgomery, William G. Martin
  • Patent number: 4944973
    Abstract: A wraparound closure with closure means which can be easily re-opened, such as a zipper or Velcro-type closure, provides environmental protection for splices or branch-offs in elongate substrates, such as communications or other cables, which closure has the advantage that it can be opened and re-closed easily and quickly. The end portions of the closure are sealed around the cable substrat with a sealing material having a cone penetration value of 100 to 350 (10.sup.-1 mm) and an ultimate elongation of at least 200%. The wraparound may include a retaining means, such as a resilient plastic ring, which may be positioned to hold the wraparound closure away from the cable substrate when the closure is opened and work is being performed on the cable and may be positioned around the cable to provide support for the wraparound closure when it is in the closed position.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: July 31, 1990
    Assignee: Raychem Corporation
    Inventor: Martha G. Follette
  • Patent number: 4929478
    Abstract: Sleeves formed of fabrics comprised wholly or in part from engineered plastic materials which are settable by heat to be biased to a specific sleeve geometry are disclosed. One form of sleeve illustrated involves heat-setting plastic material to a helical configuration by wrapping an elongated strip of the fabric material helically on a mandrel, heating the material while in the helical configuration, and thereafter cooling the material so that is has a permanent helical set with the side edges of the material in overlapping relation. the sleeves so formed may be collapsed into a short cylinder for packaging. In use, the compressed cylinder is allowed to expand lengthwise over an elongate object or objects to effect a jacketing of the same without additional assembly effort. A second form of sleeve disclosed involves setting the fabric material in tubular form, wherein the product is formed to have side edges abutting one another or in overlapping relation.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: May 29, 1990
    Assignee: The Bentley-Harris Manufacturing Company
    Inventors: Thomas B. Conaghan, Harry F. Gladfelter, Joseph S. Kite, III, Marie C. Tresslar
  • Patent number: 4927698
    Abstract: A fabric formed of yarns having a core formed of fire-resistant filaments and a sheath formed of staple fibers and a cured, crosslinked composition applied to one surface of the fabric is provided. The composition comprises a first crosslinkable resin having an affinity for the fire-resistant filament core and a second crosslinkable resin having an affinity for the staple fiber sheath and for the first crosslinkable resin. The fabric because of the composition is pucker and shrink resistant, and the tensile strength and flexibility of the yarns and the aesthetic appeal of the fabric are maintained when the fabric is washed repeatedly.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: May 22, 1990
    Assignee: Springs Industries, Inc.
    Inventors: Pamela J. Jaco, Thomas W. Tolbert
  • Patent number: 4921756
    Abstract: This corespun yarn includes a high temperature resistant continuous filament fiberglass core and a low temperature resistant staple fiber sheath surroudning the core. The corespun yarn is useful in the formation of fine textured fire resistant flame barrier fabrics for use as mattress and pillow ticking, bedspreads, mattress covers, draperies, upholstery, protective apparel, tenting, awnings, field fire shelters, for use as a substrate or backing for coated upholstery fabrics and as a flame barrier for use beneath upholstery fabric. The core of high temperature resistant continuous filament fiberglass comprises about 20% to 40% of the total weight of the corespun yarn while the sheath of low temperature resistant staple fibers surrounding and covering the core comprises about 80% to 60% of the total weight of the corespun yarn. The total size of the corespun yarn is within the range of about 43/1 to 3.5/1 conventional cotton count.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: May 1, 1990
    Assignee: Springs Industries, Inc.
    Inventors: Thomas W. Tolbert, William M. Cooke, James E. Hendrix
  • Patent number: 4913927
    Abstract: Aluminum weld wire having a nascent aluminum surface, (the weld wire is also useful for vacuum and arc metallizing), is lubricated with a dual coating of an essentially anhydrous lower alkanol and a colloidal solid lubricant each present as a layer so thin that they are essentially invisible to the naked eye. The solid lubricant is oil-free colloidal graphite which may be combined with a minor amount of a sulfide of molybdenum. The lubricant particles are deposited from a 1% to 15% by wt dispersion of the particles in the alkanol, in substantially spaced-apart relation, forming a non-uniform, monoparticulate layer on the nascent aluminum surface. The high propensity of the lubricant particles to settle out (they are smaller than 10 microns, and generally smaller than 1 micron in size) from the dispersion, permits formation of the monoparticulate layer. The alkanol layer is so thin that only from 100 ppm to 0.1% of alkanol, by weight of the weld wire, is present.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: April 3, 1990
    Assignee: Alcotec Wire Co.
    Inventor: Bruce E. Anderson
  • Patent number: 4904529
    Abstract: A heat and oil resistant insulating composition for use as an insulating layer of an electric insulating wire, a material for an extrusion mold and an insulating layer of a cord-shaped heater, comprising an ethylene tetrafluoride-propylene copolymer, a methacrylic ester or acrylie ester as a cross-linking auxiliary and an organic peroxide as a cross-linking agent.The composition is cross-linked under the atmospheric pressure.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: February 27, 1990
    Assignee: Kurabe Industrial Co., Ltd.
    Inventor: Norio Ikegaya
  • Patent number: 4902297
    Abstract: A composite implant prosthesis comprising a core constructed from a plurality of carbon fibers, a first casing formed from a braided sheath of carbon fibers and a second casing enclosing the core and first casing to define an outer surface contour for the composite implant prosthesis. The method for constructing the composite implant prosthesis includes the steps of pultruding the core from a polymer impregnated tow, braiding the first casing to the pultruded core and applying the second casing thereto. The pultruding and braiding steps are performed in a continuous process while the second casing is applied to a discrete element formed from the core.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: February 20, 1990
    Assignee: Zimmer, Inc.
    Inventor: Thirumalai N. C. Devanathan
  • Patent number: 4902548
    Abstract: This invention concerns a reinforcing member intended to be incorporated to a resin. This member (1) comports a layer made of high strength filament materials combined with visco-elastic elastomer filaments with high damping properties. This member is applicable to composite structures which may enter into vibration.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: February 20, 1990
    Assignee: Atomic Skifabrik A. Rohrmoser
    Inventors: Gerard Cholat-Serpoud, Franz Scherubl
  • Patent number: 4900879
    Abstract: An insulation system and method utilizes multiple helically wound insulating tape windings wound on a wire. Each individual insulating tape winding is wound so that each wrap overlaps a specified area of the preceding wrap of the winding.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: February 13, 1990
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Robert J. Buck, Helmut H. Landeck, Henry J. Luer
  • Patent number: 4898046
    Abstract: A highly flexible and cost effective stranded conduit for a control cable assembly comprises about twenty-one (21) to thirty (30) individual strands of low carbon SAE 1005 to 1040 steel wire wrapped in a contiguous helical configuration about a plastic resin liner at a pitch of 0.5 to 3.0 inches, with the individual strands of wire having a diameter of 0.008 to 0.020 inches. The wire layer is surrounded by a jacket material formed of an abrasion resistant plastic resin.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: February 6, 1990
    Assignee: Grand Rapids Controls, Inc.
    Inventors: James M. Mancewicz, William R. Bosworth, Jr.
  • Patent number: 4889575
    Abstract: A golf club shaft of increased playability and feel is manufactured with a generally hollow and tapered cylindrical wall comprised of a plurality of layers of fibers and a resin binding the plurality of layers of fibers together into an integrated structure. The shaft includes a portion of constant outer diameter adjacent one end adapted to accept a grip and a portion of a smaller constant diameter adjacent the other adapted to be fitted to the hosel of a club head and a portion intermediate the two end portions with a uniformly tapering diameter. The golf club comprises a plurality of layers of fibers arranged and oriented within the shaft to resist torsional deflection and to provide a controlled and variable flexural resistance, permitting the player to recover energy stored in the shaft during the swing and to apply that energy to the ball for greater distance. The inner and outer layers of fibers include fibers running both perpendicular and parallel to the longitudinal axis of the shaft.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: December 26, 1989
    Assignee: Fiber-Speed International, Inc.
    Inventor: Paul A. Roy
  • Patent number: 4871407
    Abstract: A sheet-like image recording material capable of forming a three-dimensional image. The image recording material comprises a sheet-like base material, a thermoexpansive coating layer formed by applying thermoexpansive microspheres onto the base material surface together with a binder, the thermoexpansive spheres being each formed by encapsulating a low boiling, vaporizable substance into a microcapsule of an thermoplastic resin, and a film layer bonded releasably onto the surface of the coating layer or the base material surface on the side where the coating layer is not provided. A toner image of a desired original image is formed on the film layer according to a electrophotographic method and then irradiated with light, whereby the toner image portion is heated selectively, so that the thermoexpansive layer expands to raise the image, thus affording a three-dimensional image. The toner image can be removed by peeling the film layer from the sheet-like image recording material.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: October 3, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Shigeo Honma, Kazuyoshi Hara
  • Patent number: 4868041
    Abstract: Cloth for protection against flames which comprises woven or knitted composite yarns wherein wholly aromatic polyamide fibers of a general formula;--NHAr.sub.1 NHCOAr.sub.2 CO-- and/or --NHAr.sub.3 CO--wherein Ar.sub.1, Ar.sub.2 and Ar.sub.3 are independently bivalent aromatic groups, respectively, are disposed as cores and flameproofed cellulosic fibers and/or wool fibers are disposed around said cores.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: September 19, 1989
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Mashiro Yamagishi, Takumi Minagawa, Hiroshi Yoshida
  • Patent number: 4859804
    Abstract: An insulating polyolefin laminate paper and a method for producing such a paper in which first and second fiber paper layers are laminated to a polyolefin film layer. The fiber paper layers have an impermeability of 20 to 4000 Gurley-seconds. At least one of the fiber paper layers is mechanically deformed in such a manner that irregularities are produced having a depth of 2 to 50% of the thickness of the fiber paper layer. The mechanical deformation is accomplished prior to lamination. Before lamination, the water content of the fiber paper layers is controlled to be no more than 4%. Preferably, the thickness of the fiber paper layers is at least 30 microns. Furthermore, an electric power supply cable includes an insulating polyolefin laminate paper as an insulating layer.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: August 22, 1989
    Assignee: Sumitomo Electric Industries
    Inventors: Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Hidemitsu Kuwabara, Yasuharu Mizumoto, Yasuhiro Hagiuda
  • Patent number: 4855534
    Abstract: A cable shielding tape is produced by laminating a single layer of an insulating material film which may be plastic to a conducting layer which may be of metallic foil with the conducting layer offset laterally with respect to said insulating layer, leaving an overhanging portion of the insulating layer along one edge of the tape and a similar overhanging portion of the conducting layer along the opposite edge of the tape. This overhanging portion is then folded over the edge of the insulating layer and bonded to the opposite surface thereof. In an alternative arrangement the conducting layer and insulating layer are coterminous at the opposite edge and both are folded back with the conducting layer outermost.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: August 8, 1989
    Assignee: KT Technologies Inc.
    Inventor: Lawrence J. O'Connor
  • Patent number: 4848745
    Abstract: A filament winding process is disclosed for producing articles having a layer of wound helically extending fibers sandwiched between generally longitudinal fibers. The process is well adapted for use with thermoplastic resins and for producing articles having a high resistance to bending. In a preferred embodiment, there is disclosed a filament wound baseball bat formed from a thermoplastic resin, (poly(arylene sulfide).
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: July 18, 1989
    Assignee: Phillips Petroleum Company
    Inventors: John R. Bohannan, William H. Beever, J. Andrew Stirling
  • Patent number: 4846772
    Abstract: A driving rope for use with the printing head carriage of a word processor, a plotter or other compact equipment. The driving rope generally comprises a core rope and a thread formation of resin disposed thereon. Unlike a conventional timing belt, this driving rope is deformable for easy routing and yet assures a positive and accurate shift of the carriage.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: July 11, 1989
    Assignee: Asahi Mini Rope Hanbai Kabushiki Kaisha
    Inventors: Minoru Saruta, Munechika Matsumoto
  • Patent number: 4836545
    Abstract: A two piece metallic and composite golf shaft utilizing metal for the construction of its lower tip section, and fiber/resin composite for the construction of its upper butt section, creating a hybrid golf shaft which retains the major characteristic advantages of these two shaft materials, while being largely free of their respective disadvantages; the shaft consisting of a tubular lower metallic tip section, comprising approximately one-third of total shaft length, having parallel or tapered sides, and a plurality of diametrally expanding steps at its upper terminal end where it joins a tubular upper composite butt section of larger diameter, having a lower end which telescopingly fits into and is bonded to the inside wall of the last elongated step of the lower metallic tip section, the junction between the two sections being flush, and from whence the upper composite butt section progressively tapers outwardly to its upper terminal end.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: June 6, 1989
    Inventor: J. Benedict Pompa
  • Patent number: 4836769
    Abstract: Disclosed is a water-cooled winding for an electromagnetic stirrer, which comprises a coil including a plurality of wound flat type wires having a wire-insulating turn insulation, and a porous polyamide fiber having an air permeation rate not higher than 25 seconds/100 cm.sup.3 of air covering the periphery of the coil, which is impregnated with an epoxy resin composition. In this water-cooled winding, the polyamide fiber is sufficiently impregnated with the epoxy resin composition and this epoxy resin composition is cured stably and assuredly. Accordingly, the mechanical rigidity of the winding is sufficiently high, and the water resistance of the winding is highly improved and is maintained for a long time, with the result that the life of the winding is greatly prolonged.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: June 6, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tadashi Iwabuchi, Takeshi Kawakami
  • Patent number: 4835036
    Abstract: The method relates to the production of a string (24) for a racket, particularly a tennis racket. The string is a known string, for example a gut string or a synthetic string. The conditioning of the string on a support (1), particularly a bobbin, is effected under a traction tension and the length of the string is kept constant. Thus, the elongation of the string under the traction tension effect when winding the string on the support (1) is conveniently between 5 and 15%. The stringing of the racket with the thus conditioned string (24) should be carried out in an interval of 60 minutes, but preferably 30 minutes, from the removal time of the string from its support (1). The relaxation of the string, i.e. the decrease of tension after the stringing of the racket, is considerably smaller with a string conditioned according to the invention than with a same string which has not been conditioned. Such relaxation reduction is particularly important with a polypropylene string.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: May 30, 1989
    Assignee: Isosport Verbundbauteile GES.m.b.H.
    Inventors: Herbert Woltron, Robert Schamesberger
  • Patent number: 4835054
    Abstract: A protective covering for electrical cables having a thermally intumescent coating supported on an open network of metal fibres is disclosed. A method of using the covering to prevent the spread of shipboard fires comprising applying the covering to shipboard electrical cables is also disclosed.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: May 30, 1989
    Assignee: USBI Booster Production Company, Inc.
    Inventor: Jack G. Scarpa
  • Patent number: 4818631
    Abstract: A strand for reinforcing objects made of polymer material comprising at least one core wire and less than six outside wires arranged round it, the core wire having an outside diameter larger than the diameter of the circle tangent to each of the outside wires in the hollow space that remains free when their cross-sections have the highest packing density and smaller than the diameter of the outside wires, whereby the outside wires are made of carbon steel wire with a tensile strength of at least 2250-1130 log d N/mm.sup.2, d being the wire diameter in mm. The core wire has a tensile strength less than 2250-1130 log d N/mm.sup.2.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: April 4, 1989
    Assignee: N.V. Bekaert S.A.
    Inventor: Luc Bourgois
  • Patent number: 4806416
    Abstract: Insulating coatings are disclosed which include an inner layer of glass fabric impregnated with a binding agent supporting particles of mica, followed by two additional layers, of either polytetrafluoroethylene or glass fabric, which readily adhere to each other. The polytetrafluoroethylene decomposes at temperatures of about 1,000.degree. C., at which temperatures the glass fabric melts to convert the coating into a glass coated mica which can maintain its insulating properties both at those high temperatures and upon cooling to lower temperatures.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: February 21, 1989
    Assignee: Axon' Cable S.A.
    Inventor: Joseph P. Puzo
  • Patent number: 4792663
    Abstract: A flexible thermosensitive wire which comprises a core strand, a pair of electrodes one of which is spirally wound around the core strand, a thermosensitive polymer layer formed between the paired electrodes, a barrier layer for a dry-cleaning solvent formed around the thermosensitive polymer layer having the other electrode spirally wound therearound, and an outermost moisture-permeable layer. The wire is adapted for use in electric warming devices in which because of the quick moisture release of the wire, a normal thermosensitive characteristic is quickly shown in practical applications. The electric warming devices can be dry cleaned without deterioration of the wire.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: December 20, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Kishimoto, Tomiharu Hosaka
  • Patent number: 4776161
    Abstract: An unbonded PC steel strand used for posttensioning concrete comprising a PC steel strand composed of a plurality of stranded wires, a thin transparent lacquer coating on the outer surface of the PC steel strand, the lacquer coating being able to be broken when the PC steel strand is subjected to tension or posttensioning concrete, a filler applied around the lacquer coating, and a synthetic resin sheath covering the lacquer and filler coated PC steel strand. A method of manufacturing the unbond PC steel strand comprising steps of annealing the PC steel strand at a low temperature to remove strain, coating the outer surface of the PC steel strand with lacquer, applying a greaselike corrosion inhibitor to the surface of this lacquer coating, and sheating the coated PC steel strand with an outer synthetic resin sheath.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: October 11, 1988
    Assignee: Kawasaki Steel Corporation
    Inventors: Syuzo Sato, Masamitsu Takei, Shigeo Shoji
  • Patent number: 4767017
    Abstract: A filament-wound pressure vessel constructed of a rigid composite of an epoxy resin matrix reinforced with continuous filaments of a p-aramid coated with an adhesion modifier.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Francis M. Logullo, Sr., Yun-Tai Wu, George E. Zahr
  • Patent number: 4766019
    Abstract: The present invention resides in a method for producing a carbonated beverage can which has acceptable creep, modulus and yield strength values, which comprises a can body, which is made up of a core of a thermoplastic material, at least two layers of non-fibrous, extruded polyolefin film which has either been monoaxially stretched or biaxially stretched, [and which are wrapped around the core singularly or in plys at opposite plus/minus angles in relationship to each other to yield disproportionate stress resistance vectors for hoop and axial stresses present in said body at a 2:1 ratio] one layer of which is wrapped around said core singularly or in plys at an angle with respect to said core of from about +60.degree. to about +80.degree. and the other of said two layers is wrapped around said core singularly or in plys at an angle with respect to said core of from about -60.degree. to about -80.degree.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: August 23, 1988
    Assignee: Shell Oil Company
    Inventors: Nicholas Michaels, William H. Korcz, R. Neil Campbell, Surendra N. Singhal
  • Patent number: 4762965
    Abstract: An insulating polyolefin laminate paper and a method for producing such a paper in which first and second fiber paper layers are laminated to a polyolefin film layer. The fiber paper layers have an impermeability of 20 to 4000 Gurley-seconds. At least one of the fiber paper layers is mechanically deformed in such a manner that irregularities are produced having a depth of 2 to 50% of the thickness of the fiber paper layer. The mechanical deformation is accomplished prior to lamination. Before lamination, the water content of the fiber paper layers is controlled to be no more than 4%. Preferably, the thickness of the fiber paper layers is at least 30 microns. Furthermore, an electric power supply cable includes an insulating polyolefin laminate paper as an insulating layer.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: August 9, 1988
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Hidemitsu Kuwabara, Yasuharu Mizumoto, Yasuhiro Hagiuda
  • Patent number: 4759981
    Abstract: A welding backup tape assembly includes a flexible, elongated, heat resistant ribbon, such as a metal foil strip, with a flexible, elongated, heat resistant, fibrous rope having a flexible reinforcing core, preferably metallic, attached to one major side of the ribbon, suggestedly by stitching with a glass fiber thread, to form a substantially unitary assembly. Pressure sensitive adhesive layers are applied to the ribbon on either side of the fibrous rope to allow that side of the assembly to be adhered to the weldable workpiece. In the preferred embodiment, the fibrous rope is formed by a knitted, multistrand stainless steel wire core supporting a sheath of knitted, texturized, untwisted fiberglass yarns. Untexturized, low or no twist, continuous, glass fiber thread is used to stitch the rope to the ribbon.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: July 26, 1988
    Assignee: Davlyn Manufacturing Co., Inc.
    Inventor: Thomas L. Weil
  • Patent number: 4757997
    Abstract: A golf club shaft of increased playability and feel is manufactured with a generally hollow and tapered cylindrical wall comprised of a plurality of layers of fibers and a resin binding the plurality of layers of fibers together into an integrated structure. The shaft includes a portion of constant outer diameter adjacent one end adapted to accept a grip and a portion of a smaller constant diameter adjacent the other adapted to be fitted to the hosel of a club head and a portion intermediate the two end portions with a uniformly tapering diameter. The golf club comprises a plurality of layers of fibers arranged and oriented within the shaft to resist torsional deflection and to provide a controlled and variable flexural resistance, permitting the player to recover energy stored in the shaft during the swing and to apply that energy to the ball for greater distance. The inner and outer layers of fibers include fibers running both perpendicular and parallel to the longitudinal axis of the shaft.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: July 19, 1988
    Assignee: Fiber-Speed International, Inc.
    Inventor: Paul A. Roy
  • Patent number: 4746402
    Abstract: A process of forming a gasket with a minimal production of waste material is disclosed. A suitable fiber is mixed with a binder in water to form a fiber-binder aqueous mixture. The mixture is then deposited on a screen in a predetermined pattern to form a gasket preform with apertures in predetermined locations therein. The gasket preform is subsequently dewatered and cured. The gasket preform can be provided with differential thicknesses and preformed inserts to impart, respectively, selective control of the sealing capability of and reinforcement to the resulting gasket.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: May 24, 1988
    Assignee: Fel-Pro Incorporated
    Inventors: Michael J. Maloney, Helmut F. Prahl
  • Patent number: 4740422
    Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: April 26, 1988
    Inventor: Charles E. Kaempen
  • Patent number: 4737598
    Abstract: A shielding tape for wrapping an electrical conductor is formed from an laminate of a conducting fold layer and an insulating dielectric layer. One longitudinal edge of the laminate is folded back with the foil layer inner most so as to define a pocket which contains a multi-strand ground wire. The shielding tape can be wrapped around the conductor or conductors longitudinally with the foil layer inner most and an opposed edge folded in the opposite direction to provide electric continuity first of all alternatively the tape can be wrapped longitudinally with the foil layer outer most.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: April 12, 1988
    Inventor: Lawrence O'Connor
  • Patent number: 4732629
    Abstract: This invention provides a method of increasing the cut-through resistance of a PTFE insulated conductor. Unsintered PTFE is expanded and compressed and then applied to a conductor. The insulated conductor is then heated to a temperature above 345.degree. C. The compressed, expanded PTFE has one crystalline melt point above 375.degree. C.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: March 22, 1988
    Inventors: Peter B. Cooper, Sarah J. Lane
  • Patent number: 4726993
    Abstract: A low-voltage cable with insulation having good fire self-extinguishing and life cycle properties and with improved heat resisting and low toxic gas generation properties. The cable is formed by extruding a mixture of a polymer which is substantially non-cross-linkable by irradiation, a monomer cross-linkable by irradiation and optionally, a fluidizing polymeric material which is cross-linkable by irradiation around a conductor and subjecting the so-formed cable to irradiation to cross-link the materials cross-linkable by irradiation.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: February 23, 1988
    Assignee: Societa' Cavi Pirelli S.p.A.
    Inventor: Antonio Zaopo
  • Patent number: RE33354
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of an ester plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and .[.9.7.]. .Iadd.10.1. .Iaddend.Said polyurethane systems are cured, cross-linked, non-spewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used of repairing, encapsulating or reclaiming electrical or telecommunication cables as well as for hard volume encapsulants or general elastomer use.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: September 25, 1990
    Assignee: CasChem, Inc.
    Inventors: William J. Downey, Melvin Brauer, Jerry C. Chao
  • Patent number: RE33392
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a ricinoleate plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and .[.9.7..]. .Iadd.10.1. .Iaddend.Said polyurethane systems are cured, cross-linked, nonspewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used of repairing, encapsulating or reclaiming electrical or telecommunication cables as well as for hard volume encapsulants or general elastomer use.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: October 16, 1990
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, William J. Downey, Frank C. Naughton