Patents Examined by Merrick Dixon
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Patent number: 6960386Abstract: An object of the invention is to provide a holding and sealing mat material of a catalytic converter for purifying an exhaust gas which can prevent inorganic fibers from flying in all directions from a surface of the holding and sealing mat material, and can keep a working environment at a time of assembling good. In the holding and sealing mat material of a catalytic converter for purifying an exhaust gas, which is arranged between a catalyst carrier and a shell covering the catalyst carrier from the outside thereof, the holding and sealing mat material includes a mat-like material consisting of inorganic fibers and being formed in a mat shape and a binder of 0.5 to 20 weight % of an organic binder or an inorganic binder, which is attached to the mat-like material, wherein a filling bulk density of the holding and sealing mat material after being assembled is within a range between 0.1 and 0.Type: GrantFiled: June 19, 2001Date of Patent: November 1, 2005Assignee: Ibiden Co., Ltd.Inventor: Masanao Agata
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Patent number: 6958187Abstract: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C.Type: GrantFiled: April 2, 2003Date of Patent: October 25, 2005Assignee: Toyo Boseki Kabushiki KaishaInventors: Yasuo Ohta, Godo Sakamoto, Tadayo Miyasaka, Takayoshi Okano, Junichi Nakahashi, Yukihiro Nomura, Takuya Konishi
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Patent number: 6955853Abstract: A low density organic polymer impregnated preformed fibrous ceramic article includes a plurality of layers. A front layer includes ceramic fibers or carbon fibers or combinations of ceramic fibers and carbon fibers, and is impregnated with an effective amount of at least one organic polymer. A middle layer includes polymer impregnated ceramic fibers. A back layer includes ceramic fibers or carbon fibers or combinations of ceramic fibers and carbon fibers, and is impregnated with an effective amount of at least one low temperature pyrolyzing organic polymer capable of decomposing without depositing residues.Type: GrantFiled: June 9, 2004Date of Patent: October 18, 2005Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Huy K. Tran, Daniel J. Rasky, Christine E. Szalai, Joseph A. Carroll, Ming-ta S. Hsu
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Patent number: 6955844Abstract: Construction materials containing surface modified reinforcements are used to fabricate composite structures. The composite structures comprise a matrix material and surface modified reinforcements, such as fibers and particulates. The surface modifier may be applied to a fiber surface using conventional sizing equipment and provides a durable film on the fiber. The surface modifier may be selected to have multifunctional properties, for example, increasing fiber pull-out strength, imparting bio-active properties, improving moisture resistance and other desirable properties to the composite structure.Type: GrantFiled: May 27, 2003Date of Patent: October 18, 2005Assignee: Innovative Construction and Building MaterialsInventors: Christopher D. Tagge, Jacob Freas Pollock, Lennard Torres, David S. Soane, Ken Saito
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Patent number: 6946196Abstract: Anti-microbial and/or anti-fungal footwear components formed from various thermoplastic polymers and additives in fibers in a mono-component form or a bi-component form in either a core-sheath or side-by-side configurations. The anti-microbial synthetic fibers include inorganic anti-microbial additives, distributed in certain areas to reduce the amount of the anti-microbial agents being used, and therefore the cost of such fibers. In certain embodiments, high tenacity polymers (e.g. PET) are employed in one portion and hydrolysis resistance polymers (e.g. PCT) in another portion with the additives. The fibers can further be blended with non-anti-microbial fibers such as cotton, wool, polyester, acrylic, nylon etc. to provide anti-microbial finished fabrics. In one embodiment, binder fibers are used which are mixed with other fibers.Type: GrantFiled: January 30, 2004Date of Patent: September 20, 2005Assignee: Foss Manufacturing Co., Inc.Inventor: Stephen W. Foss
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Patent number: 6936341Abstract: Process for a fiber-reinforced ceramic material whose reinforcing fibers are present in the form of at least one of woven fabrics, short fibers and long fibers, wherein the mass ratio of the fibers in the form of woven fabrics, short fibers and long fibers is 0-35:25-80:0-45 and at least a part of the reinforcing fibers has at least one protective layer of carbon produced by pyrolysis of resins or pitches, boron compounds or phosphorus compounds or combinations thereof which have been deposited thereon, a process for producing it and its use as material for brake liningsType: GrantFiled: March 12, 2004Date of Patent: August 30, 2005Assignee: SGL Carbon AGInventors: Ronald Hüner, Moritz Bauer, Peter Winkelmann
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Patent number: 6933038Abstract: The present invention relates to a method for reinforcing mineral-based materials using reinforced fiber material. More particularly, the present invention relates a method for more uniformly dispensing a fiber material with a mineral-based material, such as cement paste.Type: GrantFiled: November 6, 2001Date of Patent: August 23, 2005Assignee: Institute of Paper Science and Technology, Inc.Inventors: Hiroki Nanko, Kimberly E. Kurtis
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Patent number: 6933023Abstract: In the present invention, there is provided a camouflage material having a camouflage pattern applied thereto and comprising a granitic aspect made of intermixed colored grains exhibiting the colors: light green having a dominant wavelength of 566.70 nm; a luminance factor of 13.10% and a saturation factor of 44.70%; brown having a dominant wavelength of 583.0 nm; a luminance factor of 9.30%, and a saturation factor of 31.60%; average green having a dominant wavelength of 569.36 nm; a luminance factor of 5.24%, and a saturation factor of 38.50%; and black having a dominant wavelength of 582.34 nm; a luminance factor of 2.68%, and a saturation factor of 4.01%. The granitic aspect is composed of about 21% colored grains exhibiting the color light green; about 6% colored grains exhibiting the color brown; about 48% colored grains exhibiting the color average green, and about 25% colored grains exhibiting the color black.Type: GrantFiled: February 20, 2003Date of Patent: August 23, 2005Inventors: Svend Clausen, Gert Hvedstrup Jensen, Torben Kaj Winther
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Patent number: 6926961Abstract: The present invention relates to a blend of 15-97 weight percent electret fibers and 3-85 percent by weight dissimilar non-electret fibers using dry laid blending technique. The electret fibers incorporate 0.05 to 30 weight percent charge control agents. Optionally, at least about 3 to about 50 weight percent of said blend is bicomponent fibers having a low melting component to bond the blend into a unitary nonwoven structure. The blend is bonded to form nonwoven webs that are used in making filter fabric and particularly air filter fabric.Type: GrantFiled: August 15, 2001Date of Patent: August 9, 2005Assignee: Invista North America S.a.r.l.Inventor: Douglas Duane Roth
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Patent number: 6921572Abstract: A transmission belt is made of a cord, a rubber or thermoplastic matrix, and an adhesion material which is able to adhere the cord to the rubber or thermoplastic matrix. The cord is made of at least two yarns, such that a first yarn has a melting or decomposition point T1 and a second yarn has a melting point T2, wherein T1>T2. A ratio of a linear density of the first yarn to a linear density of the second yarn is between 1,000:1 and 1:1, wherein the second yarn is fused to the first yarn. A method of making such cords includes intertwining the first and the second yarn and then heating to a temperature between T1 and T2, with the heating step being integrated with or followed by a step wherein the cord is subjected to a dipping treatment with a rubber adhesion material.Type: GrantFiled: February 13, 2001Date of Patent: July 26, 2005Assignee: Teijin Twaron GmbHInventor: Jan Van Campen
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Patent number: 6919118Abstract: A plurality of unidirectional sheets (30a, 30b, 30c) are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m2, cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.Type: GrantFiled: December 27, 2002Date of Patent: July 19, 2005Assignees: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation-SNECMA, Hexcel ReinforcementsInventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne
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Patent number: 6919132Abstract: A fine texture fiberboard panel having a low resistivity value and a high board hardness value. The panel includes mineral fibers, perlite, cellulosic fibers, and binder. The mineral fibers comprise from about 50% to about 85%, the perlite includes from 0% to about 18%, the cellulosic fiber comprises from about 2% to about 7% and the binder includes from about 6% to about 15% of the panel on a dry solids weight basis. The concentration of mineral fibers includes from about 30% to about 65% nodulated mineral fiber. The perlite has a density in the range from about 7 to about 20 pcf.Type: GrantFiled: August 7, 2003Date of Patent: July 19, 2005Assignee: AWI Licensing CompanyInventors: John Felegi, Jr., Robert C. Garman
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Patent number: 6913823Abstract: A process for the preparation of water repellent acrylic fiber materials which includes (a) a first step in which the material is subjected to plasma treatment in the presence of a reactive gas or a mixture thereof with a noble gas; and (b) a second step in which the material obtained in step (a) is subjected to waterproofing by means of (i) traditional resin finish or (ii) with plasma generated in the presence of fluorinated compounds. The materials made of acrylic fiber obtained by the process have a waterproofing degree higher than 25 cm of water column and have a rigid appearance or good draping and softness depending on whether they have been water-proofed with treatment (i) or (ii). These materials may used in the preparation of covers or sun shields.Type: GrantFiled: July 25, 2002Date of Patent: July 5, 2005Assignee: Montefibre S.p.A.Inventors: Mario Pinton, Raffaele Tedesco, Serafina Pane
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Patent number: 6911247Abstract: A protective covering system having high-flexibility and low areal density characteristics. In one aspect of the invention, the protective system includes a plurality of metallic staples or wire elements secured to multi-layer matrix including woven fibers, the layers being oriented at cross angles to provide a grid-like pattern of protective elements. In one aspect of the invention, protective elements provide a coverage area of less than 90% and as little as 40% of total surface area. In one aspect of the invention, protective elements may be mechanically secured to a matrix by a puncture and crimp process. In another, wire elements may be attached or woven into one or more matrix layers.Type: GrantFiled: December 13, 2001Date of Patent: June 28, 2005Assignee: Warwick Mills, Inc.Inventor: Charles Howland
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Patent number: 6908667Abstract: A method is provided for producing a fiber-reinforced material which is composed, at least in a region of a surface layer, of a ceramic composite and has carbon-containing fibers reaction-bonded to a matrix containing the elements Si and C. In particular a method of producing fiber-reinforced silicon carbide is provided in which a structure of a matrix contains cracks and/or pores, at least at ambient temperature, because of a high thermal expansion coefficient compared with that of the fibers. Metals are selectively electrodeposited in the open pores and cracks of the matrix and, in particular, in a region of the electrically conductive reinforcing fibers. As a result, the open pores and cracks are filled and, in addition, metallic top layers are optionally formed that are firmly keyed to the ceramic composite and that may serve as an interlayer for glass top layers or ceramic top layers.Type: GrantFiled: June 25, 2002Date of Patent: June 21, 2005Assignee: SGL Carbon AGInventors: Martin Christ, Michael Heine, Andreas Kienzle, Rainer Zimmermann-Chopin
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Patent number: 6908676Abstract: A transmission belt comprising a belt body and a cord. The belt body is made of a rubber composition. The cord is comprised of poly-p-phenylene benzobisoxazole fiber. The cord is embedded in the belt body. The belt body and the cord are formed into an integral whole by vulcanizing the rubber composition. The surface of the cord is subjected to a primary treatment involving coating a mixture of an epoxy compound and latex and heat treating, and a secondary treatment involving coating a resorcinol-formalin-latex adhesive and heat treating.Type: GrantFiled: January 22, 2002Date of Patent: June 21, 2005Assignee: Unitta CompanyInventors: Hiroshi Sogabe, Shigehiro Isshiki, Hiroyuki Yamamoto
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Patent number: 6905742Abstract: An image retaining card is disclosed. An image retaining card in accordance with the present invention may be utilized as an identification card, a driver's license, a passport, and the like. An image retaining card in accordance with the present invention comprises a substrate structure, a cover, and an image receptive material disposed between the substrate structure and the cover. The substrate structure comprises a substrate layer and a substrate tie layer.Type: GrantFiled: January 31, 2003Date of Patent: June 14, 2005Assignee: 3M Innovative Properties CompanyInventors: Nagraj Koneripalli, Mark F. Schulz, Lori P. Engle, James M. Jonza
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Patent number: 6901986Abstract: The present invention involves a carbon fiber-filled sheet molding compound and method of manufacturing the same. The invention comprises providing chopped automotive carbon fibers, a predetermined resin paste, a first carrier film, and a second carrier film. The method further involves coating substantially completely one side of one of the first and second carrier films with the predetermined resin paste to define a coated side, depositing the chopped automotive carbon fibers onto the coated side, and covering the deposited carbon fibers with the second carrier film to define a compactible carbon-filled laminate. The method further includes compacting the carbon-filled laminate to admix the resin paste with the carbon fibers between the films, whereby to form the automotive carbon fiber-filled sheet molding compound.Type: GrantFiled: November 20, 2002Date of Patent: June 7, 2005Assignee: Patent Holding CompanyInventor: Frank W. Bradish
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Patent number: 6902800Abstract: A composite comprising a structural component and a matrix component, the structural component comprising structural fibers and a toughening additive comprising non structural fibers of a first thermoplastic material and the matrix component comprising a second thermoplastic material. The structural component is a fabric formed from the structural fibers and the non structural thermoplastic fibers, the fabric comprising non structural thermoplastic fibers which are in fibre form in the final composite. The first and second thermoplastic materials differ as to their molecular weight or are dissimilar.Type: GrantFiled: September 27, 2001Date of Patent: June 7, 2005Assignee: cytec Technology Corp.Inventor: David Harold Woolstencroft
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Patent number: 6902805Abstract: Chaotic advection causes the formation of various encapsulates in binary phase composites. Such composites are successfully formed with thermoplastics that are present in desired amounts by weight or volume. With a batch type chaotic mixer, the process starts with selecting suitable polymers, mechanically mixing the raw material, heating the mixture, instilling chaotic advection by agitation for a period of time and cooling and recovering the composite. With continuous flow types of chaotic mixers, the process starts with melting the component polymers in separate extruders capable of component melt flows in predetermined proportions.Type: GrantFiled: March 10, 2003Date of Patent: June 7, 2005Inventors: David A. Zumbrunnen, Michael S. Ellison, Bridgette L. Gomillion