Woven Or Felted Sheet-form Work Patents (Class 264/324)
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Patent number: 7326044Abstract: This invention relates to a novel apparatus and process for producing thermoplastic articles. In one aspect, the invention pertains to a process for manufacturing fiberglass products using a fiberglass material consisting of fiberglass strands commingled with heat-formable polypropylene strands. A molding apparatus comprising: (a) an air pressure chamber with an open side; (b) a flange plate fitted to the open side of the air pressure chamber, said flange plate having an opening therein for receiving a mold; (c) an upper bladder associated with the flange plate and covering the opening; (d) a base pressure plate; (e) a mold positioned on the base pressure plate; and (f) a locking mechanism for securing the air pressure chamber with the base pressure plate, and balanced air pressure in each chamber during molding.Type: GrantFiled: May 5, 2003Date of Patent: February 5, 2008Assignee: Ortho-Active Holdings Inc.Inventor: Grant David Kirchner
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Publication number: 20080026172Abstract: A molded respirator is made from a monocomponent monolayer nonwoven web of continuous charged monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that have been bonded to form a coherent and handleable web which further may be softened while retaining orientation and fiber structure. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer.Type: ApplicationFiled: July 31, 2006Publication date: January 31, 2008Inventors: John D. Stelter, Andrew R. Fox, Seyed A. Angadjivand
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Publication number: 20080000578Abstract: A method of producing a breast cup having a pattern includes the steps of: (a) preparing a substrate having inner and outer fabric layers that sandwich a foam layer; (b) placing a patterning plate over a surface of the substrate; and (c) forming the substrate into a cup and simultaneously providing the surface of the substrate with a pattern corresponding to the patterning plate by hot-pressing the substrate in the presence of the patterning plate.Type: ApplicationFiled: June 30, 2006Publication date: January 3, 2008Inventor: Shao-Tsung Wang
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Patent number: 7281754Abstract: A racing vehicle has a plurality of molded body panels. Certain ones of the molded body panels are made with pre-impregnated filler reinforced fiberglass material. A first layer of pre-impregnated fiberglass material is formed to the panel shape. A second layer of pre-impregnated fiberglass material is formed in physical contact with the first layer of fiberglass material. A first filler layer is disposed between and in physical contact with the first and second layers of fiberglass material. A third layer of pre-impregnated fiberglass material is formed in physical contact with the second layer of fiberglass material. A second filler layer is disposed between and in physical contact with the second and third layers of fiberglass material. A foam core is disposed between and in physical contact with the second and third layers of fiberglass material. The molded body panel is connected to the racing vehicle with spring steel rods.Type: GrantFiled: January 24, 2005Date of Patent: October 16, 2007Inventor: Eugene E. Behr
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Patent number: 7273575Abstract: A composite riser for an archery bow formed from fibers embedded in resin in such a way that resin rich areas, dry fibers and voids are eliminated, providing consistent risers of high quality. The location of structural fibers, such as a carbon fibers or fiberglass composite materials, is ensured within a mold used to form the riser and relative to the resin which bonds the fibers together. Various processes may be used to form the riser with control of the fibers and resin maintained. For example, structural reaction injection molding, liquid composite molding, continuous fiber molding, modified compression molding, resin transfer molding and variable infusion molding processes can be used.Type: GrantFiled: December 1, 2003Date of Patent: September 25, 2007Assignee: SpencoInventors: Albert A Andrews, Spencer Land
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Patent number: 7258828Abstract: A method of joining two components utilizes a fibrous preform at the joint. The preform has two lateral portions and a longitudinally extending flow path. The preform is sandwiched between the two components and enclosed within a vacuum bag. Resin is introduced at an inlet of the flowpath while a vacuum pump creates a suction at an outlet end and along the lateral side edges. The flow path has greater permeability than the remaining portions of the preform, causing the resin to flow to the outlet end. When the resin reaches the outlet end, the suction at the outlet end is reduced, but the suction at the lateral edges remains without reduction to cause the resin to flow laterally into the preform.Type: GrantFiled: September 3, 2004Date of Patent: August 21, 2007Assignee: Lockheed Martin CorporationInventor: John C. Fish
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Patent number: 7226559Abstract: A method for molding composite structures whereby a material stack including a core having first and second opposing sides is prepared. The preparing of the material stack includes applying a fibrous support layer on at least one of the first side and the second side of the core section, applying an adhesive layer on the support layer, and applying a thermoplastic barrier layer on the adhesive layer. The method also includes preparing a resin and a mold; placing the material stack in the mold; sealing the core; infusing the mold and material stack with resin; curing the structure; and removing the structure from the mold. In one embodiment, the method creates a composite aircraft wing panel.Type: GrantFiled: December 4, 2001Date of Patent: June 5, 2007Assignee: Toyota Motor Sales, U.S.A., Inc.Inventors: Michael K. Maxwell, Richard J. Gardiner
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Patent number: 7214337Abstract: A method of constructing a skate frame for an in-line skate is provided. The method includes forming a first skin on a mold and positioning core material on the first skin so that the core material does not contact the portions of the frame that receive load from the shoe portion. The method further includes forming a second skin over the first skin such that the core material is positioned and sealed between the first and second skins. The method further includes curing the frame.Type: GrantFiled: September 19, 2003Date of Patent: May 8, 2007Assignee: K-2 CorporationInventor: Dodd H. Grande
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Patent number: 7201861Abstract: To produce a large-size item using the RTM technique, only two reservoirs (16a, 16b) are used which are alternately connected to the mould (10). When one of the reservoirs is empty, it is replaced by another reservoir full of resin while the resin contained in the other reservoir is injected into mould (10).Type: GrantFiled: January 22, 2002Date of Patent: April 10, 2007Assignee: EADS CCRInventor: Didier Filleul
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Patent number: 7198742Abstract: Presented herein is an apparatus and method for deforming a sheet material. The apparatus includes a deforming roller having a plurality of circumferential depressions and at least one cord in rotational engagement with the roller and adapted to press the material into the depressions. The method includes the steps of providing a rotating deforming roller having circumferential depressions, at least one cord aligned to fit within the depressions and at least one sheet material, and feeding the material in a first direction between the roller and cord and deforming the material by pressing it at least partially into the depressions with the cord. The deformation may include stretching or extending the material, and/or aperturing the material, and/or producing topographical shapes or surface features in the material.Type: GrantFiled: December 30, 2003Date of Patent: April 3, 2007Assignee: Kimberly-Clark Worldwide, Inc.Inventor: Robert James Gerndt
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Patent number: 7186361Abstract: In a continuous molding apparatus equipped with a long core 10 having a curvature disposed on a plane, a release film supplied from a lower release film feeder 20 is sent onto the core 10, and prepreg sheets supplied from a prepreg sheet feeder 30 are laminated thereon and preformed. A release film supplied from a release film feeder 40 is disposed on top of the laminated body, before the body is sent into a hot press 50. A puller 60 moves the laminated body without loading tension thereto. The laminated body enters a postcure device 70 in which thermosetting of the material is completed.Type: GrantFiled: November 19, 2003Date of Patent: March 6, 2007Assignee: Jamco CorporationInventors: Toru Kasai, Makoto Okamoto, Shuntaro Kuriyama
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Patent number: 7160498Abstract: A flexible molding component used with a base mold improves on existing methods of forming fiber reinforced composite parts. The molding component is formed of a flexible body structure having an interfacing surface and a perimeter region including a perimeter seal configured for sealing engagement with the base mold. Resin and vacuum distribution channels are formed in the interfacing surface to deliver resin to a fiber lay up disposed on the base mold and draw the resin across and through the lay up, respectively, to properly mix the resin/fiber combination which forms the desired part. Application of the vacuum causes the perimeter seal of the flexible body structure to sealingly engage with the base mold to enclose materials between the body structure and the mold, as well as causing the interfacing surface to draw against the resin/fiber combination and the mold to shape the combination into the desired part.Type: GrantFiled: March 8, 2004Date of Patent: January 9, 2007Assignee: Tracker Marine, L.L.C.Inventor: Robert F. Mataya
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Patent number: 7147818Abstract: A vacuum assisted resin transfer molding (VARTM) process wherein a preform, release film, distribution medium layer, resin inlet(s), vacuum outlet(s), and vacuum bag(s) are positioned on a mold. After the resin has fully impregnated the preform by a vacuum process, the resin feed source is closed and a vacuum crossover line is opened. The resin inlet(s) are then used as a vacuum source to continue the process of removal of the excess resin. Further, secondary vacuum outlets may be placed on the preform to aid in the removal of excess resin after resin impregnation. This imposes a uniform vacuum pressure across the preform to improve the structural characteristics such as the fiber volume fraction and the compaction of the wetted preform over the conventional VARTM process.Type: GrantFiled: May 16, 2002Date of Patent: December 12, 2006Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Elias J. Rigas, Thomas J. Mulkern
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Patent number: 7141199Abstract: A method and apparatus for shaping a section bar (for example, a “T-shaped” or “J-shaped” stringer) made of composite material is provided. The method comprising the steps of placing the stacked reinforced-fiber sheets on a pair of side presses opposing to each other with a predetermined gap; inserting a punch through the gap from above to fold the stacked reinforced-fiber sheets in half, while holding ends of the stacked reinforced-fiber sheets between upper surfaces of the side presses by block members; drawing out the punch upward and then pressing the stacked reinforced-fiber sheets folded by the side presses therebetween. A shaped product shaped thereby is high quality in which a distortion (“fluctuation”) of the stacked reinforced-fiber sheets in the inner side ply or plies of bending does not occur and ends of the stacked reinforced-fiber sheets are aligned between plies.Type: GrantFiled: May 28, 2004Date of Patent: November 28, 2006Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Toshikazu Sana, Makoto Sato
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Patent number: 7132075Abstract: A connector element for connecting frame parts at a joint location in a bicycle frame is made of a single part of structural fiber based material, typically carbon fiber material, after reticulation in a mold exploiting the expansion of a core on which windings of fiber fabric material are provided, to obtain the application of a uniform radial pressure on the layers of fiber based material. In one embodiment, the connector element defines a bicycle bottom bracket and tubular extensions extending therefrom for connection to elements of the bicycle frame.Type: GrantFiled: May 13, 2004Date of Patent: November 7, 2006Assignee: Campagnolo S.r.l.Inventor: Mario Meggiolan
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Patent number: 7128869Abstract: A process and a production installation for producing shell-shaped, fiber-reinforced plastic parts are provided. The plastic parts can be produced efficiently, in an automated manner which is flexible with respect to the process and workpiece and is operationally reliable. A blank of the endless fiber mat corresponding to a workpiece is placed in an automated manner by industrial robots onto a clamping frame surrounding the female mold and is taken over by the clamping frame in a clamping manner and in such a way that it can slide after itself against a defined resistance. Wide-ranging accessibility required for this is created by a horizontally movable unit, comprising a female mold and a clamping frame, being temporarily moved completely out from the forming press and moved back again into the forming press after completion of loading.Type: GrantFiled: July 7, 2001Date of Patent: October 31, 2006Assignee: DaimlerChrysler AGInventors: Uwe Habisreitinger, Bernhard Nordmann, Michael Ostgathe
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Patent number: 7115225Abstract: A method of making a composite part including an insert and an elastomer layer that is bonded to the insert. The insert is placed in a mold and an uncured elastomer is sprayed into the mold to form a composite part. The inherent adhesive properties of the uncured elastomer is the sole mechanism for bonding the elastomer to the insert.Type: GrantFiled: June 3, 2003Date of Patent: October 3, 2006Assignee: Lear CorporationInventors: Kenneth R. Parrish, Jean-Jacques Katz, Gordon L. Ebbitt, Barry R. Wyerman
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Patent number: 7112299Abstract: A method of fabricating laminate articles. A plurality of support templates are arranged to define a part outline corresponding to the laminate article. An outer surface of a primary panel to is secured to the plurality of templates. A secondary panel is arranged in a desired relationship with the primary panel. A vacuum bag is secured to the primary panel to define a vacuum chamber. A vacuum is applied to the vacuum chamber to remove air from between the at least one primary panel and the at least one secondary panel. Optionally, at least one locater peg may be secured to the primary panel and at least one locater hole may be formed in the secondary panel. In this case, the secondary panel is displaced relative to the primary panel such that the at least one locater peg enters the at least one locater hole.Type: GrantFiled: July 9, 2003Date of Patent: September 26, 2006Inventor: Michael Merrick
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Patent number: 7097797Abstract: A method of making golf club grip includes the steps of overlapping a textile fabric on a first raw rubber layer and painting a rubber latex on the textile fabric to attach the textile fabric on the first raw rubber layer to form a thin reinforced rubber layer laminated with the textile fabric; preparing a second raw rubber layer which is shaped and sized to form two control members; shaping the first raw rubber layer to form two anti-slip members; aligning the anti-slip members with the control members in an end to end manner in two halves of heat mold respectively; and vulcanizing the anti-slip members and the control members in a heat mold to form the golf club grip including a tubular anti-slip arrangement and a tubular control arrangement coaxially extended from a lower end of the anti-slip arrangement.Type: GrantFiled: July 29, 2005Date of Patent: August 29, 2006Inventor: Yung-Hsiang Chen
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Patent number: 7097731Abstract: A method of manufacturing a hollow section grid-stiffened panel comprises providing a tool (10) having a surface (12). The stiffened skin composite panel is preassembled comprising laminating a composite outer skin (14) on the surface, placing a separator outer layer (16) on the composite outer skin (14), and laminating a composite stiffener (20) on the mandrel (18), the mandrel being positioned on the separator layer (16), wherein the separator layer (16) separates the stiffener (20) and the mandrel (18) from the outer composite skin (14). The preassembled outer skin composite panel is cured on the tool. The separator layer (16) and mandrel (18) are removed from the preassembled stiffened skin composite panel. The stiffened skin composite panel is reassembled, comprising applying an adhesive between the composite outer skin (14) and the composite stiffener (20). The reassembled stiffener skin composite panel is cured on the tool to bond the stiffener skin to the outer skin.Type: GrantFiled: April 4, 2002Date of Patent: August 29, 2006Assignee: General Dynamics Armament and Technical Products, IncInventors: Milton Puriefoy, Michael D. Halsey
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Patent number: 7090795Abstract: A method for making figures/stripes on an article, including steps of: preparing a substrate; wrapping an outer surface of the substrate with a fiberglass fabric drenched with resin; placing at least one thin or slender covering material on an outer face of the fiberglass fabric, the substrate, fiberglass fabric and the covering material together forming a wrapping body; using a binding means to bind the wrapping body to harden and pattern the fiberglass fabric; taking off the binding means after the wrapping body is hardened and patterned, whereby the fiberglass fabric is hardened to form an inner layer, the covering material positioned on the inner layer and forming the figures/strips; painting an outer resin on an outer face of the wrapping body after the outer resin is hardened; and buffing the hardening layer to complete the article.Type: GrantFiled: July 15, 2003Date of Patent: August 15, 2006Inventor: Jerry Wu
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Patent number: 7083753Abstract: A method is provided that uses half-period translations, ply-upon-pin repositions, and shape-maintaining pins with a bolster plate, with insertable nodal heating elements that provide heat at their rectangular ends and when driven under pressure against opposing pins with rectangular faces cure portions of a pre-impregnated fabric to make honeycomb core composite articles.Type: GrantFiled: December 16, 2003Date of Patent: August 1, 2006Assignee: Composite Optics, Inc.Inventors: Pat Bonebright, John Marks
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Patent number: 7067080Abstract: A process for the production of composite tubing, particularly for air conditioning, from a structure of mineral or organic fibers, natural or artificial. The structure of fibers is impregnated with a suitable resin, and after shaping in or on a mold, the temperature and possibly the pressure is raised for polymerization of the resin, a sealing of the wall of the shaped piece being carried out in the course of this process. The structure of fibers is constituted by a single ply of a unit weight of at least about 400 g/m2, which ply is impregnated with resin at an impregnation quantity of at least 40%, then there is emplaced on one of the surfaces of the single ply a coating of a sealing agent. The polymerization is carried out while the single ply and its coating have the desired shape in or on the mold.Type: GrantFiled: October 31, 2002Date of Patent: June 27, 2006Assignee: Airbus FranceInventors: Georges Eftymiades, Benjamin Lazorthes
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Patent number: 7067041Abstract: A method of producing pulp moldings having a paper-making process comprising the steps of assembling split mold halves (11, 12) having suction passageways (14) to form a paper-making mold (10), feeding pulp slurry of predetermined set feed concentration into the cavity (13) in the paper-making mold (10), and sucking the pulp slurry through the suction passageways (14) to form a pulp layer (15) on the inner surface of the paper-making mold (10), wherein the concentration of the pulp slurry in the cavity (13) in the initial and/or final period of formation of the pulp layer (15) in the paper-making process is lower than the above-mentioned set feed concentration of the pulp slurry.Type: GrantFiled: April 6, 2001Date of Patent: June 27, 2006Assignee: Kao CorporationInventors: Tokuo Tsuura, Hiroaki Kobayashi, Kenichi Otani, Masayuki Osaki, Shingo Odajima
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Patent number: 7052572Abstract: There is provided a method for manufacturing a structural body comprising: a structural body formation step of forming the structural body by combining a plurality of constituent members through a bonding adhesive; a closed space formation step of disposing the structural body into a pressurizing or heating unit, forming a closed space with at least one of the structural body and the pressurizing or heating unit, and charging an elastic body into the closed space; a hardening step of fixing or hardening the bonding adhesive through the elastic body by the pressurizing or heating unit; and a discharge step of discharging the elastic body from the closed space.Type: GrantFiled: July 30, 2002Date of Patent: May 30, 2006Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Junji Miura, Atsushi Harada, Seiji Maruyama, Eikatsu Yamaguchi, Yasuhiro Toi
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Patent number: 7045083Abstract: A unidirectional tape comprising carbon fibers and a fugitive binder is provided, as well as methods for forming the tape and composite parts using the unidirectional tape in a resin-transfer molding (RTM) process. A fugitive binder adheres fibers of the tape. The tape is laid in an RTM mold, and the mold is sealed or vacuum bagged, then heated. Hot nitrogen gas is pumped through the mold cavity, heating the carbon fibers to completely pyrolyze the binder. No residue from the binder remains, as the nitrogen carries gaseous products from the pyrolysis out of the mold. The mold is cooled to a temperature suitable for resin injection, and resin is injected into the mold cavity, wetting the fibers of the tape and completely filling the cavities of the mold. The mold is heated to cause curing of the resin, then cooled and disassembled for removal of the completed composite component.Type: GrantFiled: January 11, 2002Date of Patent: May 16, 2006Assignee: Lockheed Martin CorporationInventor: Slade H. Gardner
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Patent number: 7045084Abstract: The invention is a process for forming a preform for use in a structure having at least one curved portion of a specific length, including the steps of: 1) providing a preform having cable of expanding in length threads in rows parallel to the direction of curvature over a length equal to the length requiring curvature, such that the gaps between each thread row are spaced from the gaps in the adjacent tread rows; and 2) stretching the portions of the preform requiring curvature in a sine-wave pattern.Type: GrantFiled: August 10, 2004Date of Patent: May 16, 2006Assignee: Northrop Grumman CorporationInventors: Carl Andrew Reis, Douglas Dean Decker, Christopher H. Husmann
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Patent number: 7022275Abstract: Saddle made of composite material, in particular for a bicycle, comprising a support structure provided with a padding having a seating surface. The support structure comprises a plurality of first layers of high-rigidity composite material having an opening formed centrally therein and a second layer of composite material with a rigidity less than that of the first layers, fixed to the latter along a superimposed surface covering the opening so as to form an elastically yielding zone which is preferably located in the prostatic and ischiatic zones of the seat of the saddle.Type: GrantFiled: October 10, 2003Date of Patent: April 4, 2006Assignee: Selle Royal S.P.A.Inventor: Riccardo Bigolin
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Patent number: 7018578Abstract: Hybrid matrix fiber composites having enhanced compressive performance as well as enhanced stiffness, toughness and durability suitable for compression-critical applications. The methods for producing the fiber composites using matrix hybridization. The hybrid matrix fiber composites comprised of two chemically or physically bonded matrix materials, whereas the first matrix materials are used to impregnate multi-filament fibers formed into ribbons and the second matrix material is placed around and between the fiber ribbons that are impregnated with the first matrix material and both matrix materials are cured and solidified.Type: GrantFiled: September 27, 2002Date of Patent: March 28, 2006Assignee: The Regents of the University of CaliforniaInventors: Steven J. Deteresa, Richard E. Lyon, Scott E. Groves
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Patent number: 7014805Abstract: The invention is a process for forming a 3D woven PI shaped cross-section preform having a first and second bottom foot portions and first and second upstanding leg portions for use in a structure having at least one curved portion of a specific length. In detail, the process includes the steps of: 1) cutting the treads parallel to the direction of curvature into over a length equal to the length, such that the cuts in each thread are spaced from the cuts in the adjacent treads; 2) stretching the portions of the preform requiring curvature; and 3) forming the curvature in the preform.Type: GrantFiled: February 17, 2004Date of Patent: March 21, 2006Assignee: Northrop Grumman CorporationInventors: Carl Andrew Reis, Douglas Dean Decker, Christopher H. Husmann
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Patent number: 7014806Abstract: A closed ring fiber reinforced frame structure is produced by first preparing a prepreg. A section of the prepreg is formed into a flange preferably after impregnation by folding the flange section along a folding line. The folding line is formed by securing a deformable or drapable fiber ribbon material, for example by sewing or stitching to a carrier substrate which is preferably also a fiber material. The sewing seam or stitching line becomes the folding line. The ribbon material is so secured to the carrier substrate that the fiber orientation of the ribbon material is uniformly distributed all around a ring component that is formed of the ribbon material on the substrate. The impregnated ring component with its substrate is then cured after the folding of the flange to complete the ring frame structure.Type: GrantFiled: March 10, 2003Date of Patent: March 21, 2006Assignees: Airbus Deutschland GmbH, Institut fuer Verbundwerkstoffe GmbHInventors: Klaus Edelmann, Christian Weimer
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Patent number: 7014809Abstract: An improvement to a process for making a reusable soft flexible bag for use in infusion processes for making plastic parts, wherein a reusable polymer bag is formed by spraying or swirl spraying one or multiple layers or coats of a polymer made from one or plural component polymer material, to create a desired configuration of the bag. Successive coats can be applied without waiting for the previous layer to be cured. The bag once completely cured can be removed from the original pattern from which it was configured and placed into the resin infusion process on the same opposing mold for multiple uses before exhausting the life of the bag. Resin ports and vacuum ports and where necessary molding in handles can be included or formed during the spray process to allow for easy removal from one part and transference to a new part to be molded.Type: GrantFiled: July 30, 2004Date of Patent: March 21, 2006Inventor: Lawrence F. Audette
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Patent number: 7014803Abstract: A composite formed of a polymer matrix phase having a reinforcement phase including polymeric microfibers. The microfibers are preferably formed of a highly oriented polymer, having a high modulus value and a large surface area. The large surface area can serve to tightly bind the microfibers to the polymer matrix phase. The microfibers can be provided as a fully- or partially-microfibrillated film, as a non-woven web of entangled microfibers, or as a pulp having free fibers. The microfibers can be embedded in, or impregnated with, a polymer or polymer precursor. Some composite articles are formed from thermoset resins cured about a highly oriented polypropylene microfiber reinforcement phase, providing a strong, tough, moisture resistant article. One composite includes a matrix and reinforcement formed of the same material type and having substantially equal refractive indices, allowing the composite to be optically clear.Type: GrantFiled: July 14, 2003Date of Patent: March 21, 2006Assignee: 3M Innovative Properties CompanyInventors: Mario A. Perez, Michael D. Swan, Terry R. Hobbs, Allen R. Siedle
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Patent number: 7008582Abstract: A method of making golf club grip includes the steps of overlapping a textile fabric on a first raw rubber layer and painting a rubber latex on the textile fabric to attach the textile fabric on the first raw rubber layer to form a thin reinforced rubber layer laminated with the textile fabric; preparing a second raw rubber layer which is shaped and sized to form two control members; shaping the first raw rubber layer to form two anti-slip members; aligning the anti-slip members with the control members in an end to end manner in two halves of heat mold respectively; and vulcanizing the anti-slip members and the control members in a heat mold to form the golf club grip including a tubular anti-slip arrangement and a tubular control arrangement coaxially extended from a lower end of the anti-slip arrangement.Type: GrantFiled: February 3, 2004Date of Patent: March 7, 2006Inventor: Yung-Hsiang Chen
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Patent number: 7001544Abstract: A method for manufacturing carbon-carbon composites includes steps of producing a mat using carbon fiber, carbon fabric, carbon sheet, or staple fiber; laminating at least three layers of mats; producing a preform using the laminated mats with a needle punching method; performing a first thermal treatment process on the produced preform at a predetermined temperature; densifying the first-thermal-treated preform; performing a second thermal treatment process on the densified preform; forming a predetermined shape out of the second-thermal-treated preform; and performing an oxidation resistant treatment process of the shaped preform.Type: GrantFiled: June 25, 2002Date of Patent: February 21, 2006Assignee: DACC Co., Ltd.Inventors: Hyun Kyu Shin, Jong Hyun Park, Sang Hyo Park, Hong Sik Park, Woo Chul Choi, Kwang Soo Kim
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Patent number: 6989117Abstract: A method of making a polishing pad having a body comprising fibers embedded in a matrix polymer formed by a reaction of polymer precursors. The fibers define interstices, and the precursors fill these interstices substantially completely before completion of the reaction. The method comprising placing the fibers and the precursors in a cavity of a mold for shaping the polishing pad; applying a differential pressure across a mold cavity, where the differential pressure and the amount of precursors are sufficient to cause the precursors to fill the interstices substantially completely before completion of the reaction; and applying sufficient heat to the mold to at least partially cure the polishing pad by causing the precursors to react.Type: GrantFiled: February 23, 2004Date of Patent: January 24, 2006Assignee: International Business Machines CorporationInventors: Shyng-Tsong Chen, Kenneth P. Rodbell, Oscar Kai Chi Hsu, Jean Vangsness, David S. Gilbride, Scott Clayton Billings, Kenneth Davis
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Patent number: 6969478Abstract: A method for fabricating a protective helmet includes the steps of: (a) providing a fiber-based filler, such as a fiberglass sheeting; (b) mixing course ceramic particles into a thermoset resin; (c) impregnating the resin/ceramic particle mixture into the fiber-based filler; (d) forming or molding the impregnated fiber-based filler into a shape of a protective helmet; and (e) curing the resin mixture impregnated into the fiber-based filler. The course ceramic particles are preferably created by chopping a ceramic material. The presence of the ceramic particles in the composite helmet substantially reduces the heat reflectance of the helmet; while also reducing the overall weight of the helmet, since the ceramic material weighs less than the portion of resin material that the ceramic material is being used in place of. Finally, because the ceramic particles are course, they will not all flow to “low spots” in the helmet during the curing process.Type: GrantFiled: October 12, 2000Date of Patent: November 29, 2005Assignee: Lion Apparel, Inc.Inventor: John M. Hetzel, Jr.
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Patent number: 6962672Abstract: A process for the production of a vessel for high pressure gas, particularly helium, for a space launcher or for a satellite with a short lifetime, includes the steps of: a production of an internal skin of a plastic material selected from polyethylene and crystallized polyamide, a winding a reinforcement of fibers and resins, and a providing the obtained vessel with the necessary conduits and control valves.Type: GrantFiled: May 20, 2002Date of Patent: November 8, 2005Assignee: EADS Launch VehiclesInventor: Jack Gauthier
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Patent number: 6955847Abstract: The heat-embossed, fastening non-woven fabric of the present invention comprises, as at least one component, core-sheath or side-by-side heat-fusing composite staple fibers having a low-melting polymer component on a fiber surface, wherein a front surface of the non-woven fabric comprises a non-embossed portion and an embossed portion, the non-embossed portion being a large number of regularly or irregularly dispersed convex island regions upwardly projecting from the front surface, the embossed portion being a sea region surrounding each island region, and at least one end of the composite staple fibers in the non-embossed portion that constitute the convex island regions being press- and heat-anchored at the embossed portion that constitute the sea region. The non-woven fabric of the present invention is thin and flexible, and can be used as a cost-effective loop fastener member suitable for disposable products.Type: GrantFiled: August 1, 2000Date of Patent: October 18, 2005Assignee: Kuraray Co., Ltd.Inventors: Hirosi Itou, Tadashi Miyazaki, Hisashi Nagi, Shigekazu Takeuchi, Katsumasa Hata
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Patent number: 6926855Abstract: A method of making a composite doctor blade is provided. The composite doctor blade includes multiple layers of composite material including a plurality of abrasive unidirectional fibers, in which a substantial proportion of the fibers are aligned in a direction substantially parallel to the long axis of the doctor blade. The unidirectional fibers are provided in a unidirectional fabric that includes, based on fabric weight, at least 60% by weight unidirectional fibers.Type: GrantFiled: September 10, 2003Date of Patent: August 9, 2005Assignee: S.D. Warren CompanyInventor: Gordon Eugene Carrier
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Patent number: 6896841Abstract: A method of forming a unitary, composite structural member, and a member formed in accordance with the process. The process involves stitching a plurality of warp knit panel sections together to generally form a plurality of independent panel sections. The sections are placed within the dies of a molding tool such that a rib portion of each section aligns. Inflatable bladders are then slipped into voids formed in between the various panel sections of the assembly. The bladders are inflated to hold with one another. Resin is then infused into the panels that make up the assembly. The assembly is then cured. When the panels are removed from the molding tool a unitary, complexly shaped, composite structural member is formed.Type: GrantFiled: March 20, 2003Date of Patent: May 24, 2005Assignee: The Boeing CompanyInventors: Alexander Velicki, Patrick Joseph Thrash, Roger Alan Burgess, Cole Standish
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Patent number: 6893604Abstract: A method is disclosed for reinforcement of thin wall hollow thermoplastic storage vessels with one or more wraps of continuous fibers. This method requires thermal bonding between the reinforcement fibers and the outer surface of the thermoplastic storage vessel while the interior cavity of the storage vessel is being pressurized. The fiber wraps can also be oriented in spatial directions further resisting internal stress on the storage vessel walls when put in service.Type: GrantFiled: October 10, 2002Date of Patent: May 17, 2005Assignee: ADC Acquisition CompanyInventor: David E. Hauber
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Patent number: 6890470Abstract: A fiber composite structural component such as a fitting, bracket, mounting or the like is produced by applying fiber material such as fiber threads or fiber yarns in an automatic circular weaving operation to a core that has at least two sections, to form a fiber material body (6). One core section is removed from the fiber material body when the weaving is completed. The body is then deformed in a mold that has the contour of the finished structural component with at least one mold core section still in the fiber material body. The deformed configuration of the structural component is then impregnated in an RTM device with a resin and hardener followed by curing. Reinforcements may be inserted or secured to the fiber material body prior to the impregnated and curing step.Type: GrantFiled: March 10, 2003Date of Patent: May 10, 2005Assignee: Airbus Deutschland GmbHInventors: Martin Staub, Tim Leeraar, Juergen Filsinger, Andreas Gessler
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Patent number: 6869561Abstract: The inventive method concerns a process of transferring resin into reinforcing material used in the manufacture of composite articles. A first step in the method involves positioning at least one layer of the reinforcing material on the surface of an open mold. Subsequently, a sealant layer is applied in liquid form over the reinforcing material to create an airtight chamber encapsulating the reinforcing material between the sealant layer and the mold. After the sealant layer is allowed to cure, resin is drawn through the reinforcing material.Type: GrantFiled: February 5, 2004Date of Patent: March 22, 2005Assignee: Composite Innovations, Inc.Inventors: Keith Johnson, Scott Lewit
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Patent number: 6858276Abstract: The invention concerns the production of articles comprising at least a rigid element (1) and at least an element (2) made of a thermoplastic material obtained by moulding. The rigid element (1) has a profiled transverse section defining a concave space, wherein is positioned at least partly an element made of thermoplastic material.Type: GrantFiled: March 21, 2000Date of Patent: February 22, 2005Assignee: Rhodia Engineering Plastics S.A.Inventors: Didier Chomier, Marcel On De Laak, Gerhard Potsch
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Patent number: 6852271Abstract: A flexible insulation blanket having a smoothly surfaced, secondarily bonded, ceramic matrix composite (CMC) outer layer, and a method of producing a flexible insulation blanket having a secondarily bonded CMC layer by forming a CMC prepreg layer comprising a woven ceramic fabric layer impregnated with a pre-ceramic slurry and layering the prepreg layer with a flexible insulation blanket. The blanket and prepreg layer are then compressed such that the prepreg layer abuts a rigid smoothly surfaced plate and the ceramic material is cured by heating while under compression. Pressure is then released and the insulation is fired to sinter the ceramic material of the CMC layer.Type: GrantFiled: August 11, 2003Date of Patent: February 8, 2005Assignee: The Boeing CompanyInventor: Robert A. DiChiara, Jr.
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Patent number: 6843953Abstract: In a method for producing fiber-reinforced plastic components made of dry fiber composite preforms by an injection method for injecting matrix material, the arrangement of the fiber composite preform on one surface of the preform resulting in a flow promoting device, on a tool, creates a first space by a gas-permeable and matrix-material-impermeable membrane surrounding the preforms. Formation of a second space arranged between the first space and the surroundings by a foil, which is impermeable to gaseous material and matrix material, is provided, with removal by suction, of air from the second space resulting in matrix material being sucked from a reservoir into the evacuated first space and with the flow promoting device causing distribution of the matrix material above the surface of the preform facing the flow promoting device, thus causing the matrix material to penetrate the preform vertically.Type: GrantFiled: March 13, 2001Date of Patent: January 18, 2005Assignee: EADS Deutschland GmbHInventors: Jürgen Filsinger, Torsten Lorenz, Franz Stadler, Stefan Utecht
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Publication number: 20040266292Abstract: A fibre mat as intermediate in the production of moulded pieces with preferably the same wall thickness is disclosed, comprising fibres made overwhelmingly of cellulose which are pressed together with a plastic in a homogeneous mixture. The plastic is in the form of fire with a length in the range of 30-100 mm and the cellulose fibres have a length of 10-100 mm. The cellulose fibres preferably comprise natural fibres, formed from, flax, sisal, hemp, kenaf, technical viscose fibres or mixtures thereof, or from regenerated cellulose, particularly synthetic cellulose obtained from wood.Type: ApplicationFiled: August 20, 2004Publication date: December 30, 2004Inventors: Jochen Gassan, Ansgar Engel
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Publication number: 20040262816Abstract: A mold for molding fibrous molding media includes upper and lower mold bodies defining a mold cavity, the upper and lower mold bodies being movable relative to each other to close the mold. The upper and lower mold bodies have respective upper and lower mold surfaces for contacting the fibrous molding media positioned within the mold, and have gas flow openings configured to direct gases into contact with the fibrous molding media. The mold also includes a source of gas connected to the gas flow openings.Type: ApplicationFiled: June 30, 2003Publication date: December 30, 2004Inventors: Jerry M. Parks, Anthony L. Rockwell, Randall E. Nyhart, Larry E. Targett
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Publication number: 20040261297Abstract: A method for manufacturing shoe components using EVA copolymer of film shape having a thickness of 0.01 to 2 mm, preferably 0.1 to 1.0 mm and a surface roughness variations which cannot be easily discriminated through touch or sight, and a shoe component manufactured by the method are provided. The method overcomes the drawbacks caused during the process of manufacturing a shoe component with different mechanical physical properties or colors. The method allows for ease of manufacture of a shoe component with two or more types of colors or physical properties, through a single foam molding process using a film with less variation and ease of processing, to thereby simplify manufacturing procedures and reduce manufacturing costs. In addition, a high quality shoe component with no additional seam-line is obtained.Type: ApplicationFiled: June 25, 2003Publication date: December 30, 2004Inventor: Hyung Jun Park