Strand Or Strand-portions Patents (Class 428/107)
  • Patent number: 6589891
    Abstract: An abrasion resistant garment and method of producing same. A garment that is highly ventilated while providing abrasion protection for a wearer during a slide, as for instance that may occur during a fall from a motorcycle. A material is produced wherein abrasion-resistant, low sliding friction, beads are held within a matrix of high-tensile strength, abrasion-resistant, cords. The beaded matrix within the garment can be augmented with layers to form a lining and exterior layers to enhance visibility. The force of a sliding rider is retained over the beaded matrix, away from the road surface. Under abrasive sliding friction, the beads additionally rotate to an extent which tightens the cord matrix and thereby helps constrain the skin surface of the wearer from making contact with the roadway surface.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 8, 2003
    Assignee: Rastar Corporation
    Inventor: Rodger H. Rast
  • Publication number: 20030121590
    Abstract: The object of the invention is a process for the production of a multi-directional textile preform, in which there is deposited on a substrate suitable for stitching (M) a first layer of sections of thread, then, if desired, one or several other layers in different directions, so as to produce a sequence of depositions, then, carrying out if desired one or several other sequences of deposition of layers, each section of thread (31, 32, 33) being, at each end, fixed by stitching without knotting into said substrate (M) with the help of a needle (11, 12), characterized in that the stitching at the two ends of each section (31, 32, 33) is carried out independently with the help of two needles (11, 12) using separate threads (Pl , P2) from that of the layers, the end of the section of thread being, upon arrival of the deposition head at the height of its point of turning back, fixed by the stitching thread, the embedded stitching needle serving as a hooking pin for the thread during deposition of the following se
    Type: Application
    Filed: November 27, 2002
    Publication date: July 3, 2003
    Inventors: Georges Cahuzac, Fabien Barrot
  • Publication number: 20030118800
    Abstract: A method and apparatus for orientation of block copolymer microdomains via rapid solidification. Rapid solidification from a solvent may include directional solidification and/or epitaxy to form patterns of microdomains in a film of block copolymer. Microdomains may include various structures formed by components of a block copolymer, such as vertical lamellae, in-plane cylinders, and vertical cylinders, and may depend on film thickness. Orientation of structures in microdomains may be controlled to be approximately uniform, and spatial arrangement of microdomains may be controlled.
    Type: Application
    Filed: May 28, 2002
    Publication date: June 26, 2003
    Inventors: Edwin L. Thomas, Claudio DeRosa, Cheolmin Park, Michael Fasolka, Bernard Lotz, Anne M. Mayes, Jongsesung Yoon
  • Patent number: 6579815
    Abstract: The invention concerns a method of forming a fabric of interlaced yarn by arranging on a surface a plurality of yarn guide blocks, each guide block adapted to guide yarn from a yarn source to the surface and wherein the relative motion of the yarn guide blocks and surface serves to deposit yarn from the guides onto the surface in such a way that when said yarns are deposited on a surface, the diagonal positions of the yarns from one block are offset from a direct overlapping alignment with the yarns from the remaining blocks to thereby densely cover the surface during repeated cycles of such motion.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: June 17, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Peter Popper, William Charles Walker, Albert S. Tam, James K. Odle, George Yeaman Thomson, Jr.
  • Publication number: 20030091785
    Abstract: A fabric system for producing at least a woven fabric of controlled modulus or elongation in the MD or warp axis, has a core layer which is the main structural element, and may have one or more woven cover fabrics adhesively bonded with an off axis configuration to one or both sides of the core layer. In a preferred embodiment the core fabric is covered with at least one off axis fabric on both sides. The cover fabrics may also have resin or film top layers laminated or coated on their outside surfaces, for mechanical performance or UV protection or both.
    Type: Application
    Filed: November 13, 2002
    Publication date: May 15, 2003
    Inventor: Charles A. Howland
  • Patent number: 6562436
    Abstract: A laminated composite (multi-ply) radius filler includes a plurality of woven fabric reinforced plies cut to fill a radius gap (including, if appropriate, intentional overfill) to increase absolute strength, to increase specific strength, or to reduce cost by reducing cracking and distortion in the radius of a composite assembly. The present invention also describes the method of manufacture and method of use for such laminated composite radius filler.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: May 13, 2003
    Assignee: The Boeing Company
    Inventors: Panagiotis E. George, Kirk B. Kajita, Barry P. Van West
  • Patent number: 6551684
    Abstract: A polymeric membrane system containing a polymeric membrane and a substrate with interstitial gaps. Polymeric membrane components reside within the interstitial gaps of the substrate and below the surface of the substrate. Also, the layer of polymeric membrane components is thinner than the cross-sectional thickness of the substrate.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: April 22, 2003
    Assignee: Gradipore Limited
    Inventors: David Henry Solomon, Greg GuangHua Qiao, Marcus Julian Caulfield
  • Patent number: 6543497
    Abstract: For use as a wood intermediary and the like in industry, an essentially wedge-shaped wood flake with opposite concave and convex surfaces that converge at an imaginary tip outside the flake dimensions. The tip is located beyond the flake a distance of typically between 40% and 100% of the flake length.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: April 8, 2003
    Inventor: Hans Dietz
  • Patent number: 6531233
    Abstract: A superconducting joint between multifilamentary superconducting wires through an optional superconducting medium where at least one of such components is an interconnected filament superconducting part is disclosed. Such joint and method for producing same can include a bridge made of a superconducting medium to contact and make electrical connection with the side of such wire.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: March 11, 2003
    Inventors: Shahin Pourrahimi, Nadder Pourrahimi
  • Publication number: 20030035921
    Abstract: The present invention relates to the manufacture of a multilayered board having a stable, and moisture resistant surface. To accomplish this and other advantages of the invention, an improved binder system is used in the production of the surface layers of a multi-layered board which combines an excellent resin penetration inside the wood constituents of the board's surface layers, with a strength, durability and resitance to ambient water and moisture. The improved-binder system used in the production of the board surface layers accordinq to this invention involves contacting wood pieces with a binder composition comprised of a curable powdery aldehyde resin and a curable isocyanate resin in the substantial absence of free water to provide a composite mixture that can be formed into a surface layer for assembly and lamination together with other wood and resin composite layers.
    Type: Application
    Filed: October 10, 2002
    Publication date: February 20, 2003
    Inventors: Dragan R. Kornicer, Robert D. Palardy
  • Patent number: 6517926
    Abstract: A plastic strip for supporting and spacing wood products for kiln drying or air drying. The plastic strip is rectangular and adapted to withstand high temperature, moisture and pressure under continuous re-use in the temperatures, pressures and moisture of the kiln drying process. The strip is ventilated to inhibit moist areas remaining on the wood products in the overlap between the strips and the wood products.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: February 11, 2003
    Inventors: William N. Therrien, Timothy Byman
  • Publication number: 20030026942
    Abstract: The present invention provides for wood based panels (e.g., OSB or plywood) that are termite resistant, fungal resistant, or a combination thereof; and methods of manufacturing the same.
    Type: Application
    Filed: April 30, 2002
    Publication date: February 6, 2003
    Inventors: Donald Hejna, Bruce Trebnick, Ron S. Salisbury, Thomas G. Herion
  • Patent number: 6506472
    Abstract: A composite sheet including a base layer 7 and a surface layer. The surface layer is comprised of continuous fibers 8a and extends along a longitudinal axis C—C of the composite sheet 1. The surface layer is attached to at least one surface of the base layer 7 along a first attaching lines 5A extending at intervals in one half region of the surface layer defined by the longitudinal axis C—C and along second attaching lines 5B extending at intervals in another half region of the surface layer. The first and second attaching lines 5A, 5B extend in a direction intersecting the longitudinal axis C—C.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: January 14, 2003
    Assignee: Uni-Charm Co., Ltd.
    Inventors: Yoshinori Tanaka, Yasuhiko Kenmochi, Masaharu Tomioka
  • Patent number: 6500515
    Abstract: The present invention relates to a connecting rod made of composite material, especially for internal-combustion engines, the composite material being formed by a reinforcement embedded in a cured material, and the connecting rod (A) comprising, along the longitudinal extension (X—X) of the connecting rod, a central shank (B) extended respectively, at its two ends, by a connecting-rod big end (C) and a connecting-rod small end (D). According to the invention, the connecting rod (A) is produced entirely as a single component made of composite material and the reinforcement of the composite material comprises superposed plies of crossed straight filling yarns, the filling yarns, which extend parallel to the longitudinal extension (X—X) of the connecting rod (A), constituting at least twice the volume percentage of the filling yarns which extend in each of the directions other than the longitudinal extension (X—X) of the connecting rod (A), and binding yarns pass through the superposed plies.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: December 31, 2002
    Assignee: Aerospatiale Societe Nationale Industrielle
    Inventors: Lucien Fantino, Georges Cahuzac
  • Patent number: 6490828
    Abstract: A panel covering for use in an office environment is disclosed. The panel covering includes an exterior layer including a decorative surface treatment. The panel covering also includes an interior base layer including a polymer material coupled to the exterior layer. The panel covering also includes a reinforcing layer including a porous web installed between the exterior layer and the interior layer. The polymer material may include polyethylene terephthalate or PET. A method of forming a panel covering is also disclosed.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: December 10, 2002
    Assignee: Steelcase Development Corporation
    Inventors: Christopher S. Fuller, Arnold A. Krumrie, Mark C. Volesky
  • Patent number: 6447875
    Abstract: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for, any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: September 10, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Scott G. Norquist, Dennis L. Krueger, Alan J. Sipinen, Robert H. Menzies, Thomas P. Hanschen, Ronald P. Leseman, Sharon N. Mitchell, James C. Nygard, Victor P. Thalacker, Jan Ockeloen
  • Patent number: 6447873
    Abstract: A leader used to pull a seamable papermaker's fabric onto a paper machine comprising at least one section of material comprising yarns which are so oriented so as to distribute the load evenly across and down the fabric.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: September 10, 2002
    Assignee: Albany International Corp.
    Inventor: Glenn Kornett
  • Patent number: 6391420
    Abstract: The invention is an extruded bicomponent elastomeric netting having unidirectional elasticity. Such a netting product is a non-woven article employing a non-elastic material such as polypropylene (10) in the machine direction strands and an elastic material such as a styrenic block copolymer (12) in the cross machine direction strands. The reverse arrangement, a product with “reverse strand distribution”, is also possible.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: May 21, 2002
    Assignee: Leucadia, Inc.
    Inventors: Hans O. Cederblad, Jan D. Seppala
  • Patent number: 6376582
    Abstract: The wood fiberboard of the present invention comprises wood fibers which have been subjected to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment bonded together by a binder resin, wherein the content of the wood fibers which have been subjected to an acetylation treatment is 35 to 90% by weight of the total amount of wood fibers which have been treated to an acetylation treatment and wood fibers which have not been subjected to an acetylation treatment.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: April 23, 2002
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Yoshihiro Hirano, Satoshi Suzuki, Katsunobu Fukuda, Hironori Watanabe
  • Publication number: 20020031641
    Abstract: A laminated composite (multi-ply) radius filler includes a plurality of woven fabric reinforced plies cut to fill a radius gap (including, if appropriate, intentional overfill) to increase absolute strength, to increase specific strength, or to reduce cost by reducing cracking and distortion in the radius of a composite assembly. The present invention also describes the method of manufacture and method of use for such laminated composite radius filler.
    Type: Application
    Filed: February 23, 2001
    Publication date: March 14, 2002
    Applicant: The Boeing Company
    Inventors: Panagiotis E. George, Kirk B. Kajita, Barry P. Van West
  • Patent number: 6348255
    Abstract: An artificial leather strip, and methods of making such a strip. The synthetic leather strip is suitable for sporting applications such as lacing baseball gloves and shoes. The strip comprises at least one reinforcing cord embedded in a matrix. The matrix comprises PVC and additives such as nitrile rubber and/or urethane, and is sufficiently tough to resist the “cheesecutter” effect when the strip is flexed, for example by being tied in a knot.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: February 19, 2002
    Assignee: Brockton Plastics, Inc.
    Inventor: Daniel C. Harkins, Sr.
  • Patent number: 6331339
    Abstract: A method of making a fiber glass mat especially useful for bonding to wood contains glass fibers and a “B” staged resin is disclosed. A substantial portion of the resin binder can be a furfuryl alcohol formaldehyde, phenol formaldehyde, melamine formaldehyde, or any other resin that can be “B” staged. Also, a method of making wood and wood product laminates using this new mat without any other adhesives, and the resultant laminates are disclosed.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: December 18, 2001
    Assignee: Johns Manville International, Inc.
    Inventor: Richard Emil Kajander
  • Patent number: 6303207
    Abstract: A fiber glass mat especially useful for bonding to wood contains glass fibers and a “B” staged resin, and the method of making the mat, are disclosed. A substantial portion of the resin binder can be a furfural alcohol, phenol formaldehyde, melamine formaldehyde, or any other resin that can be “B” staged.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: October 16, 2001
    Assignee: Johns Manville International, Inc.
    Inventor: Richard Emil Kajander
  • Patent number: 6267164
    Abstract: A chip and method for producing wood pulp. First, second and third pairs of substantially parallel sides are formed by cleaving, cutting and cutting, respectively. The sides of the second pair of sides are cut by a first knife so as to be spaced between about 2 to 8 mm. The sides of the third pair of sides are cut by a second knife so as to be spaced a greater distance apart than the first pair. The sides of the first pair of sides are cleaved substantially along the grain direction so as to be spaced also a greater distance apart than the sides of the first pair. The sides of the third pair of sides are cut so as to be substantially perpendicular to the sides of the first pair of sides.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: July 31, 2001
    Assignee: Key Knife, Inc.
    Inventor: Charles Thomas Carpenter
  • Patent number: 6265047
    Abstract: A low-stretch, flexible composite, made of one or several sections, particularly useful for making a sail (2), includes first and second polymer films (52, 62) with discontinuous, stretch-resistant segments (16) therebetween. The segments extend generally along the load lines (17) for the sail. The segments have lengths which are substantially shorter than corresponding lengths of the load lines within each section. The ends of the segments are laterally staggered relative to one another. Mats (20) of generally parallel mat elements can be used as the segments. The mat elements typically include discrete multifiber yarns (24, 26) and/or a fiber array (22), typically created by pneumatically laterally spreading apart the fibers of an untwisted multifiber yarn (32). A laminating assembly includes first and second flexible pressure sheets (66, 68), defining a sealable lamination interior (82) containing the material stack (64) to be laminated, housed within an enclosure (90).
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: July 24, 2001
    Assignee: Tensile Composite Research
    Inventors: Laurent Chapuis, Thomas M. Ainlay, Jean-Pierre Baudet, Marc A. Bruegger
  • Publication number: 20010001974
    Abstract: A synthetic wood material and method are disclosed, including providing a plurality of continuous glass fibers oriented substantially in the longitudinal axis and coated with a resorcinol modified phenolic resin binder substantially free from catalyst. In one aspect, the synthetic wood material is oxidatively treated to restore color. In one aspect, the fibers and binder are precoated with a furfuryl alcohol resin prior to the pultrusion step to form the synthetic wood.
    Type: Application
    Filed: January 6, 2001
    Publication date: May 31, 2001
    Inventors: Willy M. Balaba, Thomas J. Bryan
  • Patent number: 6235137
    Abstract: A distinctive method and apparatus for forming an article includes a moving of at least one first strand of material, such as strand (22), along an appointed machine-direction (34). The at least one first strand of material is attached to a base layer of material (42) to provide a substrate composite (40), and a laminate layer (44) can be placed adjacent the at least one first strand of material to provide a laminate composite web (48). In a particular aspect, at least one second strand of material, such as strand (56), can be moved along its appointed machine-direction, and the at least one second strand of material can be attached to the base layer (42). In another aspect, an appointed portion of the base layer (42) can be folded to substantially enclose the at least one second strand (56) with the base layer material.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: May 22, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David James Van Eperen, Mark John Beitz, Joseph Conrad Burriss, Robert Thomas Cimini, Chris Lee Heikkinen, Daniel Hoo, David Andrae Justmann, Richard Francis Keller, Douglas Paul Rammer, Lorry Francis Sallee, Jeffrey Joseph Samida, Donald LeRoy Smith, Raymond Gerard St. Louis, Barbara Jean Wink
  • Patent number: 6231946
    Abstract: A structural reinforcement in the form of an open gridwork which is advantageously used, for example, as part of a shoe sole. The structural reinforcement provides and/or enhances spring-like characteristics of the member it is reinforcing, propels and encourages the natural foot strike of the user to length the user's stride, increases the stride speed, and stabilizes the user's foot to prevent permanent compression of the midsole as a result of creep. The gridwork is impregnated throughout with a fully cured or B-stage thermosettable resin. The gridwork includes at least one continuous filament selected from the group consisting of glass, carbon, and aramid. The open gridwork is flat, corrugated, or double corrugated. The corrugated gridwork may be sinusoidal. The open gridwork may be part of a shoe midsole or may constitute a shoe midsole.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: May 15, 2001
    Inventors: Gordon L. Brown, Jr., Bentley A. Brown, Jeffery E. Milliman
  • Patent number: 6217975
    Abstract: An extendible sheet member is configurable between first and second states. The first state is a coiled state (1.1) in which the member is coiled substantially parallel to a first axis and the second state is an extended state (1.2) in which the member extends substantially parallel to a second axis at some angle to the first axis. The member is made wholly or in part from a material or materials which give rise to internal stresses upon extension, these stresses acting at some angle to the second axis such as to bias the member to the second state. In many embodiments these stresses are produced by fibers which form part of the structure of said member. Said member is preferably reversibly configurable between said first and second states.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: April 17, 2001
    Assignee: Rolatube Technology Limited
    Inventor: Andrew J. Daton-Lovett
  • Patent number: 6183834
    Abstract: The invention relates to a ballistic-resistant molded article containing a compressed stack of monolayers, with each monolayer containing unidirectionally oriented reinforcing fibers and at most 30 wt. % of a plastic matrix material and with the fiber direction in each monolayer being rotated with respect to the fiber direction in an adjacent monolayer, characterized in that the density (&rgr;P) of the compressed stack is at least 98.0% of the theoretical maximum density. The invention also relates to a process for manufacturing the molded article. The ballistic-resistant article may be used in, for instance, helmets, as inserts in bullet-proof vests, as armoring on military vehicles and in ballistic-resistant panels.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: February 6, 2001
    Assignee: DSM N.V.
    Inventor: Leonardus L. H. van der Loo
  • Patent number: 6183835
    Abstract: A reinforced fiber sheet for use in repairing/reinforcing concrete structures including a net-shaped fabric substrate and reinforcing fibers uni-directionally and uniformly arranged on either side or both sides thereof. Also, a reinforced fiber sheet for use in repairing/reinforcing concrete structured including a first and a second substrate and reinforcing fibers uni-directionally and uniformly interposed between the first and second substrates. The substrate is a net-shaped fabric formed by cross-arranging organic or inorganic fiber strands and impregnating them with thermoplastic resins, and the reinforcing fiber is attached and bonded to the substrate by the thermoplastic resin.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: February 6, 2001
    Inventors: Yong Jun Cho, Sam Tae Chung, Se Hyun Cho, Il Soo Jeong
  • Patent number: 6165586
    Abstract: A flat strip (1) including at least one layer (2) of longitudinal filamentary rovings (3), and means for assembling said filamentary rovings. The assembly means comprise a bonding material (5) and retaining means (4) surrounding and clamping said layer (2). The longitudinal filamentary rovings (3) are agglomerated into a relatively flat strand with a substantially rectangular cross-section, and each filamentary roving (3) has a predetermined average compactness of at least 60%. The retaining means (4) consist of a flat tubular sheath including elements (7) extending transversely to the longitudinal direction of said filamentary rovings (3). Said strip is particularly useful for reinforcing ducts used in the oil industry.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: December 26, 2000
    Assignee: Coflexip
    Inventors: Joel Le Nouveau, Anh Tuan Do
  • Patent number: 6151743
    Abstract: A method for forming a structural panel such as for a bridge deck includes providing a first and a second sheet formed by fibers and settable resin and laminating the sheets with a plurality of parallel side by side connection members. The connection members are formed by filament winding around a core using primarily a large wind angle followed by a final shallow angle of wrap. The connection members are triangular in cross section and each is inverted relative to the next so that the sides are in contact. The connection members are connected together while the resin is uncured so that during lamination they cure together to allow integration of the resin, close matching of the shapes so that the resin at the junction remains thin and intermingling of the filaments. The connection members are dry wound on a core and the resin is applied by infusion. The core carries reinforcing members to tailor strength as required along the length of the member.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: November 28, 2000
    Assignees: Faroex Ltd., Wardrop Applied Systems Inc.
    Inventors: Kenneth S. Church, Colin Douglas Stewart, Terry Pohjoisrinne, Mark Wallace, Aaron Lutz, William Richard Haldane-Wilsone, Emile Fekry Gerges Shehata
  • Patent number: 6136408
    Abstract: Oriented strand board is post-fabrication treated with a polymeric coating which includes isocyanate constituents to produce a construction material which is smooth, has high gloss, and which is resistant to water, vapor, and chemical penetration. The isocyanate constituents are most preferably MDI or PMDI, and may be present in a coating composition alone or in combination with other binder materials such as PEEG or other polyols. Prior to application of the coating composition, the surface of the oriented strand board is pretreated using heat and pressure to compress and densify wood at the surface, and to smooth out minor surface irregularities. The coating composition is then applied to the wood surface, and is cured to form a polymeric coating which bonds to the wood material.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: October 24, 2000
    Assignee: J. M. Huber Corporation
    Inventors: Scott H. Radcliffe, Thomas L. Lee, Robert D. Palardy
  • Patent number: 6132877
    Abstract: A carbon--carbon composite clutch friction material for use with a wet lubricant under severe operating conditions is disclosed, the material comprising a woven carbon fabric mesh (suitably a satin weave mesh) infiltrated with pyrolytic carbon to an unusually high density in the range of at least 1.3 g/cc to about 1.5 g/cc. By infiltrating the woven carbon fabric with carbon to such high density, a wear-resistant friction material is provided that still retains enough surface texture for lubricant transport.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: October 17, 2000
    Assignee: General Motors Corporation
    Inventors: Peter Stanhope Winckler, Greg Alan Weeter
  • Patent number: 6117545
    Abstract: Cellulose microfibrils, in particular for use as a reinforcing filler or structuring agent in composite materials, a method for making same, and composite materials containing said microfibrils, are disclosed. Specifically, said microfibrils are surface-modified cellulose microfibrils with an L/D ratio higher than 20, preferably higher than 100, and an average diameter of 1-50 nm, where L is the length of the microfibril and D is its average diameter. At least 25% by number of the hydroxyl functions on the surface of the microfibrils are esterified by at least one organic compound including at least one function capable of reacting with the hydroxyl groups of the cellulose. As a result, when the organic compound is a compound that includes acetyl groups such as acetic acid, said microfibrils are used as a reinforcing filler in a material comprising cellulose acetate as the polymeric matrix. The filled composite material may be shaped to provide films, moldings, fibers or yarns.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: September 12, 2000
    Assignee: Rhodia Chimie
    Inventors: Jean-Yves Cavaille, Henri Chanzy, Etienne Fleury, Jean-Fran.cedilla.ois Sassi
  • Patent number: 6106655
    Abstract: The invention proposes a lamellar wood panel (1) comprising stacked, flatly superposed wood layers (3) cemented to each other at pairwise adjacent large faces (15), part of the wood layers (3) having mutually transverse fiber direction, part of the large surfaces (15) being fitted with a plurality of slots whereby the slots of the adjacent large surfaces (15) are mutually crossing, at least in part, pairwise adjacent wood layers (3) having mutually transverse fiber directions.The invention also proposes a method for manufacturing a lamellar wood panel (1) in which wood layers (3) are stacked together and cemented to each other, at least part of the wood layers (3) with mutually transverse fiber directions being stacked, slots being fitted in part of the wood-layer large surfaces (15), the wood layers (3) being stacked, and the wood stack being moved into a tightly sealable enclosure which is evacuated during at least part of the cement setting period.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: August 22, 2000
    Assignee: Karl Moser
    Inventor: Karl Moser
  • Patent number: 6106944
    Abstract: In the manufacture of a structural member comprising a thermoplastic composite core with an exterior reinforcing layer, the core member is initially extruded in the shape of a profile. The profile is then contacted with reinforcing fiber and resin to form the exterior reinforcing layer. The exterior thermosetting layer is cured to form a reinforcing layer. The structural member is preferably manufactured using a pultrusion method in which a tractor device is used to provide linear movement of the profile from the extrusion head to the exterior coating operation. The fiber-reinforced thermoset is coated on the entirety of the exterior of the profile or is applied only on a portion of the profile requiring reinforcement in a defined load-bearing direction. A preferred thermoplastic core comprises a polymer-fiber composite material.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: August 22, 2000
    Assignee: Andersen Corporation
    Inventors: Kurt E. Heikkila, Anthony L. Garofalo
  • Patent number: 6107220
    Abstract: The invention comprises a flat or shaped fabric structure of yarn groups each yarn group comprising a plurality of yarn subgroups, each group positioned for covering an area. The structure comprises at least a first group of flexible yarns densely covering an area , the yarns within the first group following substantially parallel paths in a first direction and forming a stack with at least a second group of flexible yarns densely covering substantially the same area, the yarns within the second group following substantially parallel paths in a second direction; the yarns in the first group arranged to cross the yarns in the second group, optionally containing other groups of yarn, the yarns in the upper-most subgroup of the stack are connected to the yarns in the bottom-most subgroup of the stack either directly of through the yarns in other subgroups providing an interlaced fabric structure.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: August 22, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Peter Popper, William Charles Walker, Albert S. Tam, Paul Wesley Yngve, James K. Odle, George Yeaman Thomson, Jr.
  • Patent number: 6099947
    Abstract: A hybrid material comprising a substrate prepared by curing a fabricated material made of a mixture of one or more kinds of organic binders and at least one kind of inorganic powders, and at least one unidirectional fiber layer which is comprised from one or more kinds of fibers, adhered to at least one of outer surfaces of the substrate by resin impregnation, wherein E.sub.f /E.sub.s satisfies the following relational formula (1) and E.sub.f .multidot.t.sub.f /E.sub.s .multidot.t.sub.s satisfies the following relational formula (2),E.sub.f /E.sub.s >1 (1)E.sub.f /E.sub.s .gtoreq.E.sub.f .multidot.t.sub.f /E.sub.s .multidot.t.sub.s .gtoreq.0.15 (2)where E.sub.f is bending modulus of elasticity of the resin impregnated unidirectional fiber layer, E.sub.s is bending modulus of elasticity of the substrate, t.sub.f is thickness of resin impregnated unidirectional fiber layer and t.sub.s is thickness of the substrate.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: August 8, 2000
    Assignee: Maeta Techno-Research, Inc.
    Inventors: Game Kankanamge Dinilprem Pushpalal, Tadashi Kobayashi
  • Patent number: 6099941
    Abstract: The description relates to a laminate component consisting essentially of a highly elastic fibre-reinforced synthetic resin matrix which contains a) a laminate region with a bending E modulus of 10,000 to 40,000 MPa which can be made from several synthetic resin fibre prepregs hot-pressed together and thus hardened, b) connecting strips arranged on at least two opposite edges of the laminate region of soft elastic material which are bonded at the surface with the corresponding edges of the laminate region, and c) a decorative covering layer on one side of the laminate.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: August 8, 2000
    Assignee: Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft Industriezentrum NO-Sud
    Inventor: Wolfgang Wimmer
  • Patent number: 6074722
    Abstract: The invention is a material suitable for use as the wall of a pressurized container such as the gas bag of a lighter-than-air vehicle. In detail the invention includes a first flexible ply having filamentary material comprising unidirectional filamentary material at 0 and 90 degrees to each other. A second flexible layer is included having unidirectional filamentary material at 0 and 90 degrees to each other and at 45 degrees to the filamentary material of the first ply. The strain value at failure for the filamentary material of the second ply is greater than the 0 and 90 degree filamentary material of the first layer. The first and second plies are bonded together by a resin. Preferably, additional a film of gas impermeable material and a ultra violet radiation resistant material are bonded to the first two plies.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: June 13, 2000
    Assignee: Lockheed Martin Corporation
    Inventor: Robert S. Cuccias
  • Patent number: 6071834
    Abstract: A breathable membrane and a method of constructing a fabric having the membrane, wherein the membrane is resistive to transport of liquid water, has a layer of breathable material and is stabilized dimensionally against distension by a force field, such as forces which may be applied to the membrane or resulting from a hydrostatic pressure, by a reinforcing matrix of nonwoven filaments extending in plural directions along the layer of breathable material to inhibit the distension. In the matrix, the filaments are arranged in a first plurality of the filaments which intersect a second plurality of the filaments to form cells. A minimum diameter of an individual one of the cells is greater by at least approximately an order of magnitude than a diameter of one of the filaments to provide open areas of the layer of breathable material which are free from obstruction by the filaments.
    Type: Grant
    Filed: August 9, 1997
    Date of Patent: June 6, 2000
    Inventor: Joel D. Martz
  • Patent number: 6068902
    Abstract: A composite shell which can be used, in particular, in the manufacture of bodies or compartments of flying vehicles used in rocketry or aeronautics, comprises a load-bearing framework formed of intersecting stiffening ribs, and an outer load-bearing shell. Box-shaped cover plates are secured with glue an the cross nodes of the stiffening ribs from the internal surface of the framework, and thin-walled plates are secured at the outer surface of the shell by threaded rod elements that pass through the shell and framework and are connected to the box-shaped cover plates. In one embodiment, the composite shell is formed of a plurality of panels connected together at their abutting edges.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: May 30, 2000
    Assignee: McDonell Douglas Corporation
    Inventors: Valery Vitalievich Vasiliev, Alexandr Fedorovich Razin, Alexandr Ivanovich Andronov, Vladimir Alexeevich Salov
  • Patent number: 6063717
    Abstract: A reinforced hydroentangled nonwoven fabric having small thickness and weight, draping characteristics and flexibility, and improved balance of longitudinal and transverse strength, and more particularly a thin, light-weight, reinforced, hydroentangled nonwoven fabric (9) obtained by entangling the fiber of a reinforcing support base (2) or the fiber of a fiber web laminated on the fiber of the support base (2) with the support base (2) and uniting them by ejecting high-pressure thin water jet streams (5a, 5b) against these materials, characterized in that the reinforcing support base (2) comprises a stretched unidirectionally oriented nonwoven fabric obtained by stretching a nonwoven fabric of long fiber, which is produced by spinning a thermoplastic resin, in the direction with the fiber oriented substantially in one direction, or stretched, crossed, laminated, nonwoven fabric obtained by cross-laminating the stretched unidirectionally oriented nonwoven fabric; and a method of producing the same.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: May 16, 2000
    Assignee: Nippon Petrochemicals Company Ltd.
    Inventors: Sadayuki Ishiyama, Jun Yamada
  • Patent number: 6060407
    Abstract: A polymeric material in a grid configuration comprising an integral uniplanar or substantially uniplanar oriented grid formed from orientable thermoplastic polyester, polyamide or polyurethane elastomer. Such grid is used for load support systems in furniture, bedding and automotive applications.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: May 9, 2000
    Assignee: Atlantech International, Inc.
    Inventors: Todd R. Skochdopole, David M. Daugherty
  • Patent number: 6051301
    Abstract: A reinforcement panel with a cellulose surface material improves adhesion of the panel to one or more wood segments in wood structural members such as laminated beams, wood I-beams, and trusses to provide a cellulose material-to-wood segment interface that withstands high shear stresses. The reinforcement panel is comprised of a plurality of reinforcement fibers that are preferably arranged parallel to one another and aligned with the longitudinal direction of the panel, and accordingly the wood structure. The fibers are maintained in position by a resin encasement that completely encloses the fibers. A cellulose surface material is impregnated with a polyester resin and adhesively connected to a first side of the panel. The first side of the panel is adhesively affixed to the wood structure at an area of high stress such that the surface material is sandwiched between the resin encasement of the panel and the wood structure. Thus, the panel provides improved adhesion.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: April 18, 2000
    Inventor: Daniel A. Tingley
  • Patent number: 6037031
    Abstract: A platform, breakwater, or endless track includes an array of molded cells nterconnected by a system of elongate flexible members, such as wire ropes or lines. The molded cells are cast in molds located at overlapping portions of the cables. The molds may be flexible nylon bags having openings for receiving the cables through them and a fill port to receive material. The molds may be retained on cast cells or removed and reused. A buoyant material, such as expanding self-hardening foam is pumped from foam mixing and pumping equipment into the molds to cast the cells for floating on water, although negatively buoyant cells could be cast for some applications. The cells may be cast on site or elsewhere and then transported to the work site. The cables either can be secured or free running in the molded cells.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: March 14, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William Steven Jones, James Edwin Rumbough
  • Patent number: 6022606
    Abstract: A polyvinyl chloride resin sheet which is excellent in resistance to scratch, wear and slip and hence suitable for use as flooring materials, which has a thickness of 50-500 .mu.m; an embossed and matted surface of which roughness is 15-25 .mu.m; and a transmittance of not less than 75%, and which comprises:(a) polyvinyl chloride;(b) a plasticizer in an amount of 5-35 parts by weight per 100 parts by weight of polyvinyl chloride; and(c) short glass fibers having a diameter of 6-12 .mu.m and an average length of 0.2-1.0 mm in an amount of 0.5-30 parts by weight per 100 parts by weight of polyvinyl chloride.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: February 8, 2000
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Reikichi Nakano
  • Patent number: 6010793
    Abstract: A wood board 1, wherein irregularities 6 of the surface of an oriented strand board 2 in a laminated wood board 5, in which an oriented strand board 2 is laminated on a strand board 3, are filled with a putty 7, and smoothed. A surface-decorated wood board 10, in which a surface-decorative material 12 is applied to a smoothed surface of this wood board 1. Despite the fact that an oriented strand board 2 having large surface irregularities is employed as the surface layer, it is possible to obtain a wood board 1 which has a smooth surface, in which the wooden strand pattern is reduced, and which has superior water and moisture resistance.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: January 4, 2000
    Assignee: Yamaha Corporation
    Inventors: Katsuji Yoshimura, Hironao Nagasima