Plural Fabric Layers Patents (Class 442/234)
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Patent number: 11852443Abstract: A ballistic panel is described including a core layer having a first major surface and a second major surface, the core layer including a ballistic gel. The first layer of ballistic resistant material is on the first major surface of the core layer. A second layer of ballistic resistant material is on the second major surface of the core layer.Type: GrantFiled: December 9, 2019Date of Patent: December 26, 2023Assignee: THE BOEING COMPANYInventor: John N. Harris
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Patent number: 9265160Abstract: A circuit subassembly, comprising a dielectric layer formed from a dielectric composition comprising, based on the total volume of the composition: about 15 to about 65 volume percent of a dielectric filler; and about 35 to about 85 volume percent of a thermosetting composition comprising: a poly(arylene ether), and a carboxy-functionalized polybutadiene or polyisoprene polymer.Type: GrantFiled: December 6, 2013Date of Patent: February 16, 2016Assignee: ROGERS CORPORATIONInventors: Sankar Paul, Scott D. Kennedy, Dirk M. Baars
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Patent number: 9243132Abstract: A high-frequency copper claded laminate for use in an operational frequency of at least 1 GHz possesses properties of dielectric constant (Dk) less than 3.2, dissipation factor (Df) less than 0.005, high glass transition temperature, high thermal stability and low moisture absorption; the laminate contains a tack-free prepreg constituted by a reinforcement impregnated with an inventive resin mixture at least comprising a high-molecular-weight polybutadiene resin, a low-molecular-weight polybutadiene resin, a modified thermosetting polyphenylene ether resin and an inorganic powder; and particularly the tack-free prepreg can be processed into the copper claded laminates through automated layup processing to satisfy a long-felt but unmet needs in the filed of producing copper claded laminate.Type: GrantFiled: June 1, 2012Date of Patent: January 26, 2016Assignee: Nan Ya Plastics CorporationInventors: Dein-Run Fung, Te-Chao Liao, Hao-Sheng Chen, Chun-Lai Chen
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Patent number: 9006119Abstract: Disclosed is to a composite material, a structural element comprised of the composite material, an airplane wing spar and their methods of production. Some embodiments of the present invention include composite materials comprised of multiple layers of arrays of metallic bodies separated by layers of non-metallic material, wherein the orientation of metallic bodies in some metallic layers is structurally complementing to the orientation of metallic layers in adjacent metallic layers. Other embodiments of the present invention include structural elements, such as an airplane wing spar, comprised of the composite material.Type: GrantFiled: July 11, 2010Date of Patent: April 14, 2015Assignee: A.L.D. Advanced Logistics Development Ltd.Inventors: Zigmund Bluvband, Viktor Shkatov
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Patent number: 8871660Abstract: There is provided a laminated body comprising a first resin layer consisting of a first fibrous base material and a resin and a second resin layer consisting of a second fibrous base material and a resin, wherein the first resin layer and the second resin layer are disposed such that the first resin layer and the second resin layer are at least partly positioned in separate regions separated by the center line in a thickness direction of the laminated body; wherein at least one of the first fibrous base material and the second fibrous base material has a bowing region where a bowing region is a region in which a smaller warp/weft crossing angle is less than 90° in the fibrous base material; and wherein in the bowing region, an angle formed by a warp of the first fibrous base material and a warp of the second fibrous base material and an angle formed by a weft of the first fibrous base material and a weft of the second fibrous base material, whichever is larger, is 2° or less.Type: GrantFiled: February 7, 2008Date of Patent: October 28, 2014Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Kazuyuki Yoshizaki, Teppei Ito, Iji Onozuka, Kensuke Nakamura
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Patent number: 8802997Abstract: Disclosed is a PCB having multiple layers of heavy copper. A prepreg having a nonwoven glass web substrate is used alone or together with another prepreg having a glass fabric substrate so that the space between heavy copper, which is comparable to a thick film, can be filled efficiently without creating voids. The PCB includes a copper clad laminate having first copper patterned on one surface or both surfaces of a core substrate; at least one first prepreg laminated on one surface or both surfaces of the copper clad laminate, nonwoven glass web being used as the substrate of the first prepreg; at least one second prepreg laminated on one surface or both surfaces of the first prepreg, glass fabric being used as a substrate of the second prepreg; and second copper laminated on one surface or both surfaces of the second prepreg.Type: GrantFiled: December 18, 2008Date of Patent: August 12, 2014Assignee: Doosan CorporationInventors: Jeong Don Kwon, Seung Min Hong, Ju Ho Shin
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Publication number: 20140087614Abstract: Provided is a thermosetting resin composition that contains 40 to 80 parts by volume of an inorganic filler with respect to 100 parts by volume of thermosetting resin solids and the inorganic filler. The inorganic filler contains (A) at least one type of particles selected from among gibbsite-type aluminum hydroxide particles and magnesium hydroxide particles having an average particle size (D50) of 1 to 15 ?m; (B) aluminum oxide particles having an average particle size (D50) of 1.5 ?m or less; and (C) a molybdenum compound, and the blending ratios (by volume) of the component (A), the component (B) and the component (C) with respect to 100% as the total amount of inorganic filler are component (A): 30 to 70%, component (B): 1 to 40%, and component (C): 1 to 10%.Type: ApplicationFiled: April 27, 2012Publication date: March 27, 2014Applicant: PANASONIC CORPORATIONInventors: Takashi Matsuda, Mitsuyoshi Nishino, Kiyotaka Komori
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Publication number: 20140065332Abstract: A composite liner includes first and second basalt fabric layers with at least one of the first and second basalt fabric layers formed from woven basalt fibers. The composite liner further includes a core positioned between the first and second basalt fabric layers, where the first and second basalt fabric layers are secured to the core.Type: ApplicationFiled: September 4, 2013Publication date: March 6, 2014Applicant: Atlantic-Alliance LLCInventors: Lotar Hanusa, Maung Aye Than
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Patent number: 8524622Abstract: In a skin material of vehicle interior equipment, which includes a first fabric material that is formed of a first conductive wire material and a main fiber material weaker than the first conductive wire material, and a manufacturing method for the skin material, part of the main fiber material is removed from the first fabric material, and a conductive member, which is used to supply electric power to the conductive wire material, is electrically connected to the exposed first conductive wire material.Type: GrantFiled: April 9, 2010Date of Patent: September 3, 2013Assignee: Toyota Boshoku Kabushiki KaishaInventors: Fumitoshi Akaike, Kohei Kato, Shigehiro Fujita, Takazo Fujii, Hideaki Kunisada
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Patent number: 8287984Abstract: The invention concerns an under-roof screen (100) comprising: a first layer (102) produced from a first metallic or metallized material forming a thermal reflection barrier; a second layer (108) produced from a second woven material bonded to the first layer (102); a third layer (106) produced from a third insulating material and bonded to the second layer (108); and a fourth layer (104) produced from a fourth metallic or metallized material forming a thermal reflection barrier and bonded to the third layer (106); the first layer (102) and the second layer (108) being provided with micro-perforations (110) providing permeability to water vapor and impermeability to water and the fourth layer (104) being provided with perforations (112) providing permeability to water vapor.Type: GrantFiled: June 7, 2007Date of Patent: October 16, 2012Assignee: Loda S.A.R.L.Inventor: Patrick Grall
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Patent number: 8216658Abstract: In a laminate, comprising at least one series of metal layers and fiber-reinforced plastic layers which are attached to one another, at least two different series are provided, these series including a transition, and at the location of the transition at least one of the internal layers is discontinuous and all the other layers are continuous.Type: GrantFiled: February 13, 2003Date of Patent: July 10, 2012Assignee: Fokker Aerostructures B.V.Inventors: Abdoel Faziel Rajabali, Willem Jan Nicolaas Ter Steeg
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Publication number: 20120088068Abstract: Disclosed are an aramid composite which satisfies bulletproof performance required for the related art, is lightweight and exhibits superior adhesive strength, and a method for producing the same. The aramid composite includes an aramid fabric, an adhesive layer and a metal substrate, wherein at least one of the surface of the aramid fabric and the surface of the metal substrate is modified.Type: ApplicationFiled: March 30, 2010Publication date: April 12, 2012Applicant: KOLON INDUSTRIES, INC.Inventors: Jung Seop Lim, Jae Young Lee, Chang Bae Lee, In Sik Han
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Publication number: 20120071055Abstract: An above-ground pool which consists of a plurality of layers of which there is an inner woven reinforced vinyl layer, a second, foil-laminated, metalized layer which is entrapped between a third woven reinforced vinyl layer. The three layers are then sealed together to form a watertight structure. The inner and outer layer is designed to be able to withstand forces which a typical container would experience. The core of the material is polyester woven which is then encased in durable vinyl. The layers are all combined together to form a water-tight seal by using radio frequency energy to weld the inner and outer layer together to form a permanent seal while the foil laminated, metalized layer is entrapped between the inner and outer layer.Type: ApplicationFiled: December 23, 2010Publication date: March 22, 2012Inventor: Theodor Franciscus Gillebaard
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Patent number: 8067097Abstract: A woven laminate for sound absorption that includes a first woven layer, a second woven layer, and a third woven layer. The first woven layer has a coarse structure. The second woven layer has a fine structure. The third woven layer has a medium structure. Each of the first, second, and third woven layers are composed of metallic wires that are woven to each other or interlaced as a fleece. At least one of the first, the second, and the third woven layers are superimposed in order to form the woven laminate. The woven layers are placed in the layer order fine-coarse-medium. The woven layers are welded together at least partially.Type: GrantFiled: November 24, 2006Date of Patent: November 29, 2011Assignee: Melicon GmbHInventor: Ulrich Mueller
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Patent number: 8062985Abstract: A flexible composite multiple layer fire-resistant insulation structure has a primary facing surface and a secondary facing surface. There is at least one dimensionally stable membrane having a primary membrane surface and a secondary membrane surface. At least a portion of the secondary facing surface is attached to the primary membrane surface. There is also at least one lofted insulative layer having a primary insulative surface and a secondary insulative surface. The at least one woven fabric facing layer may be formed of various materials, including amorphous silica glass and S-glass fiberglass. Different weaving patterns may be used to weave the facing layer. The facing layer may include a fire resistive treatment, which may in turn include a phosphate containing compound, and more particularly, may include dicalcium phosphate. In certain embodiments, multiple layers of the above are provided, and the structure may be enclosed in an abrasion resisting sheath.Type: GrantFiled: October 29, 2007Date of Patent: November 22, 2011Assignee: Owens Corning Intellectual Capital, LLCInventors: Robert P Collier, Brian P O'Riordan, Thomas P. McGuire
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Patent number: 7867928Abstract: A composite sandwich panel a first facing and a second facing over a core layer, the first and second facings having at least one fiberglass layer between an inner and an outer graphite layer.Type: GrantFiled: December 14, 2007Date of Patent: January 11, 2011Assignee: Sikorsky Aircraft CorporationInventors: Darryl M. Toni, Bruce H. Barr, Jeffrey G. Sauer, Jonathan Bremmer, Thomas Ranalli, Alan J. Norwid
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Patent number: 7799710Abstract: A foamed composite armor laminate comprising interleaved combinations of ballistic resistant fabrics, and ceramic and/or metallic plates or sheets in a polymeric foam matrix. The foamed composite armor can be fabricated by inserting polymer powder or sheets between layers of fabric and/or ceramic or metallic sheets to form a laminated structure, heating this laminated structure under pressure to form a consolidated panel, and then foaming the polymeric portion of the consolidated panel in an autoclave or pressure vessel by saturating the polymeric portion with inert gas at elevated temperature, rapidly releasing the pressure and controllably cooling the laminated structure to ambient. Alternatively, pre-foamed panels can be laminated to fabric, ceramic and/or metallic sheets using adhesives or the like. Through proper selection of the various elements of the laminate, i.e.Type: GrantFiled: March 24, 2008Date of Patent: September 21, 2010Inventor: Seng Tan
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Publication number: 20090269552Abstract: Armour plate comprising a mass of cured resinous material having a face surface and a back surface, a tile layer comprising a single ceramic or metal tile, or a plurality of coplanar ceramic or metal tiles arranged in edge to edge relationship, entirely embedded in the resinous mass to a depth of at least 1 mm from the face surface, and a backing layer of impact resistant flexible material embedded or partially embedded in the resinous mass on the side of the tile(s) towards the back surface.Type: ApplicationFiled: April 3, 2009Publication date: October 29, 2009Applicant: COMPOSHIELD A/SInventor: Jacob FOLDAGER
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Publication number: 20090209155Abstract: A composite fire-resistant, heat-diffusing, and heat-reflective article. The article includes at least two layers of a fire-retardant and heat-resistant fabric with a heat diffusing and/or heat-reflective core disposed between the fabric layers. The core may include at least one layer of a thin metal foil (e.g., thin aluminum foil). The composite fire-resistant, heat-diffusing, and heat-reflective article provides durability, fire resistance, and the ability to withstand high heat exposure on one face for an extended period of time without transferring significant heat to the opposite face. Combining fire-retardant fabrics with a heat diffusing and/or heat-reflective core achieves a true synergy by offering greater fire and heat protection to persons and structures than either component can offer alone.Type: ApplicationFiled: February 17, 2009Publication date: August 20, 2009Applicant: CHAPMAN THERMAL PRODUCTS, INC.Inventor: Robert J. Goulet
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Patent number: 7556854Abstract: An insulation package comprising a layer of material having a cellular structure disposed between a first layer of high-strength polymeric fabric and a second layer of high-strength polymeric fabric. The insulation provides protection for critical fluid systems, such as fuel, hydraulic, electrical, pneumatic, thermal, and mechanical systems from high-energy projectiles such as fragments from the disintegration of high-speed turbines and engines.Type: GrantFiled: September 24, 2003Date of Patent: July 7, 2009Assignee: The Boeing CompanyInventors: Tibor Farkas, Todd E. Jensen, Bich Nguyen
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Patent number: 7323261Abstract: Disclosed is a compressible printing blanket in which voids are formed in the compressible layer by using microballoons, comprising at least two fabric layers, an adhesive layer interposed between adjacent fabric layers, a surface rubber layer, and a compressible layer arranged between the at least two fabric layers and the surface rubber layer and containing spherical voids and voids having a shape other than a sphere in a ratio defined in formula given below: S1:S2=20:80 to 95:5 ??(1) where, S1 denotes the number of spherical voids per unit area in a cross section of the compressible layer, and S2 denotes the number of voids having a shape other than a sphere per unit area in a cross section of the compressible layer.Type: GrantFiled: August 4, 2006Date of Patent: January 29, 2008Assignee: Kinyosha Co., Ltd.Inventors: Yoshiharu Ogawa, Hisashi Furuta, Akiyoshi Inoue
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Patent number: 6869661Abstract: The present invention provides a flexible heat reflective radiant barrier that may be conveniently installed on a structure without the need to simultaneously replace rigid construction decking panels. The flexible heat reflective radiant barrier is for use as part of the outer-protective water-shedding materials of a structure or building, such as underneath shingles, tiles, or siding. At least one heat reflective layer is adhered to at least one layer of a felt roofing material. The flexible heat reflective radiant barrier may be disposed in rolls for case of storage and handling. The rolls are easily applied to rigid construction decking panel substrates, such as plywood or oriented strand board construction sheets of structural 2×4, 2×6 side walls or the like, as a part of the exterior water-shedding material.Type: GrantFiled: October 24, 2002Date of Patent: March 22, 2005Inventor: David D. Ahr
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Publication number: 20040087232Abstract: The invention is a new heat and fire resistant material and an improved wildland fire shelter and kit. The material is made of a woven silica-based cloth layered in several possible combinations with foil and fiberglass cloth layers. The layers can be arranged in a variety of sequences to minimize the thermal radiation to the inside of the material or shelter. However, a foil layer must always be the outermost layer to provide protection from radiant heat and a layer of foil must be present between the interior of the shelter or material and any layer of adhesive to limit accumulation of gases inside the shelter if the adhesive or other substance should break down when exposed to heat. The silica cloth, aluminum foil, and fiberglass cloth may be laminated or sewn together. The shape of the fire shelter is a half cylinder with ¼ sphere at each end. The shelter is contained in an easy-open polyvinyl bag which provides for quick removal and deployment of the fire shelter.Type: ApplicationFiled: November 1, 2002Publication date: May 6, 2004Inventors: Leslie Leah Anderson, Mary Ann Davies, Anthony Clement Petrilli, Mark Y. Ackerman
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Patent number: 6723668Abstract: The cigar and cigarette burn resistant gaming cloth table includes a layer of fire retardant treated knit fabric laminated to a thin sheet of aluminum and wherein the other side of the aluminum sheet is laminated to a layer of non-woven synthetic fabric. Preferably, the top layer knit fabric is laminated to the aluminum via a latex adhesive. The lower non-woven fabric is laminated to the aluminum sheet via latex adhesive. Preferably, the knit layer, prior to being laminated to the thin sheet of aluminum, is treated with a fire retardant and an oil and water repellant chemical composition. Most preferably, the fire retardant and oil and water repellant chemical composition is a phosphorus fluorocarbon. The method includes treating the knit polyester fabric with fire retardant chemical, laminating a thin sheet of aluminum between the knit fabric layer and a layer of non-woven synthetic fabric. Preferably, the lamination is accomplished with a latex adhesive.Type: GrantFiled: June 1, 2001Date of Patent: April 20, 2004Assignee: Graph to Graphics, Inc.Inventor: Ivette Principe
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Patent number: 6701971Abstract: Coated inflatable fabrics, more particularly airbags to which very low add-on amounts of coating have been applied, are provided which exhibit extremely low air permeabilities. The inventive fabrics are primarily for use in automotive restraint cushions which require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones and the like, have been utilized to provide such required low permeability. The inventive fabric utilizes an inexpensive, very thin coating to provide such necessary low permeability levels. Thus, the inventive coated airbag possesses a coating of at most 3.0 ounces per square yard, most preferably about 0.8 ounces per square yard, and exhibits a leak-down time (a measurement of the time required for the entire amount of gas introduced within the airbag at peak pressure during inflation to escape the airbag at 10 psi) of at least 7 seconds.Type: GrantFiled: November 22, 2000Date of Patent: March 9, 2004Assignee: Mililken & CompanyInventors: John A. Sollars, Jr., Shulong Li
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Patent number: 6703329Abstract: The cigar and cigarette burn resistant gaming cloth table includes a layer of fire retardant treated knit fabric laminated to a thin sheet of aluminum and wherein the other side of the aluminum sheet is laminated to a layer of synthetic fabric (preferably, a non-woven fabric). Preferably, the top layer knit fabric is laminated to the aluminum via a latex adhesive. The lower non-woven fabric is (a) laminated to the aluminum sheet via latex adhesive, (b) needle punch mounted to the aluminum, or (c) the aluminum is sprayed onto one or the other of the cloth layers. Preferably, the knit layer, prior to being laminated to the thin sheet of aluminum, is treated with a fire retardant and an oil, alcohol and water repellant and stain resistant chemical composition (preferably, a phosphorus fluorocarbon).Type: GrantFiled: July 12, 2001Date of Patent: March 9, 2004Assignee: Graph to Graphics, Inc.Inventor: Ivette Principe
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Patent number: 6698458Abstract: Coated inflatable fabrics, more particularly airbags to which very low add-on amounts of coating have been applied, are provided which exhibit extremely low air permeability. The inventive inflatable fabrics are primarily for use in automotive restraint cushions that require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones and the like, have been utilized to provide such required low permeability. The inventive fabric utilizes an inexpensive, very thin coating to provide such necessarily low permeability levels. Thus, the inventive coated inflatable airbag comprises a film laminated on at least a portion of the target fabric surface wherein the film possesses a tensile strength of at least 2,000 and an elongation at break of at least 180%.Type: GrantFiled: November 22, 2000Date of Patent: March 2, 2004Assignee: Milliken & CompanyInventors: John A. Sollars, Jr., Shulong Li
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Patent number: 6684404Abstract: A multi-component stab and ballistic resistant garment having a stab resistant sub-panel constructed of at least one layer of metallic cloth interposed between at least two layers of woven fabric. A ballistic resistant sub-panel constructed of woven ballistic resistant sheets is provided in which at least a portion of the stab resistant sub-panel and at least a portion of the ballistic resistant sub-panel are aligned with one another.Type: GrantFiled: August 15, 2001Date of Patent: February 3, 2004Assignee: Second Chance Body Armor, Inc.Inventors: Thomas E. Bachner, Jr., Mark S. Pickett
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Publication number: 20030183296Abstract: A papermaker's fabric is made by spirally winding a woven fabric strip. The fabric strip has first and second lateral edges, along which are a first and second lip, respectively. Each lip has at least one lengthwise yarn woven with crosswise yarns. Adjacent to and inward of the first and second lips on the fabric strip are a first and second gap, respectively, which lack lengthwise yarns but whose crosswise yarns join the lips to the body of the fabric strip. When spirally winding the fabric strip, the first lip is disposed within the second gap, and the second lip is disposed within the first gap, of adjacent turns to form a spirally continuous seam which is closed by attaching adjacent turns to one another.Type: ApplicationFiled: March 27, 2002Publication date: October 2, 2003Inventors: Michael Glenn Moriarty, Michael A. Royo
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Publication number: 20030181116Abstract: A tactile feedback device includes an elastic body adapted to be worn by a user and a shape memory alloy connected to the elastic body. The application of power causes the shape memory alloy to assume a memory shape that produces tactile feedback to the user. The elastic body may include a woven elastic material and may be embodied in a wrist band. The shape memory alloy may be located in a recess of the elastic body, or may be interwoven in the elastic body.Type: ApplicationFiled: March 22, 2002Publication date: September 25, 2003Applicant: Koninklijke Philips Electronics N.V.Inventors: Clive R. Van Heerden, George Marmaropoulos
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Publication number: 20030013370Abstract: A garment and method for reducing electromagnetic radiation produced by a transmitting device typically located inside a body. The garment may include material to prevent or lower electromagnetic radiation. A method for using such a garment to lower electromagnetic emissions is described.Type: ApplicationFiled: July 3, 2002Publication date: January 16, 2003Inventor: Arkady Glukhovsky
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Publication number: 20020012768Abstract: The invention provides a composite armor plate for absorbing and dissipating kinetic energy from high velocity projectiles, the plate comprising a single internal layer of pellets which are directly bound and retained in plate form by a solidified material such that the pellets are bound in a plurality of adjacent rows, the pellets having a specific gravity of at least 2 and being made of a material selected from the group consisting of glass, sintered refractory material and ceramic material, the majority of the pellets each having at least one axis of at least 3 mm length and being bound by the solidified material in the single internal layer of adjacent rows such that each of a majority of the pellets is in direct contact with six adjacent pellets in the same layer to provide mutual lateral confinement therebetween, the pellets each having a substantially regular geometric form, wherein the solidified material and the plate are elastic, characterized in that a channel is provided in each of a plurality ofType: ApplicationFiled: August 7, 2001Publication date: January 31, 2002Inventor: Michael Cohen
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Patent number: 6291374Abstract: An electrical substrate material is presented comprising a resin matrix which includes a thermosetting polybutadiene or polyisoprene resin, an ethylene propylene rubber, and optionally a thermoplastic unsaturated butadiene- or isoprene-containing polymer; a particulate filler, a flame retardant additive, a curing agent, and a woven or unwoven fabric. The presence of the ethylene propylene rubber enhances the heat age properties of the substrate material, particularly the dielectric strength and the mechanical properties, while other electrical, chemical, and mechanical properties of the material are not adversely effected.Type: GrantFiled: March 21, 2000Date of Patent: September 18, 2001Assignee: World Properties, Inc.Inventor: Vincent R. Landi
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Patent number: 6133169Abstract: A combination of layered structures is disclosed for protection from both ice pick and knife penetration and ballistic threats wherein there are flexible metallic based structures, tightly-woven fabric layers, and ballistic layers, all arranged such that the tightly-woven fabrics layers are nearer than the ballistic layers to the threat strike face of the structure.Type: GrantFiled: March 20, 1998Date of Patent: October 17, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Minshon J. Chiou, Jianrong Ren, Nicolas A. Van Zijl
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Patent number: 6071836Abstract: An electrical substrate material is presented comprising a thermosetting matrix of polybutadiene or polyisoprene in an amount of about 15 to about 50 volume %; a fabric reinforcement in an amount of 0 to about 40 volume %; a particulate filler, preferably ceramic, in an amount of from 0 to about 60 volume %; microballoons in an amount from 0 to about 60 volume %; and optionally a flame retardant. A peroxide cure initiator and/or crosslinking agent may optionally be added. The presence of a very high surface area particulate filler, preferably fumed silica, is also preferred, in that its presence results in a prepreg which has very little tackiness and can therefore be easily handled by operators. This low tackiness feature allows for the use of conventional automated layup processing, including foil cladding, using one or more known roll laminators.Type: GrantFiled: October 22, 1998Date of Patent: June 6, 2000Assignee: World Properties, Inc.Inventors: Michael E. St. Lawrence, Doris I. Hand
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Patent number: 6048807Abstract: An electrical substrate material is presented comprising a thermosetting matrix which includes a polybutadiene or polyisoprene resin, an unsaturated butadiene- or isoprene-containing polymer and an ethylene propylene rubber; a particulate filler and, a fabric. Preferred ethylene propylene rubbers are ethylene propylene copolymers and ethylene propylene diene terpolymer rubbers wherein the diene is dicyclopentadiene. The ethylene propylene rubber is present in an amount of up to about 20 wt % with respect to the resin, preferably in an amount of about 1 to about 7 wt %, more preferably about 5 wt %. The presence of the ethylene propylene rubber enhances the dielectric strength of the resulting electrical substrate material, while other electrical, chemical, and mechanical properties of the material are not adversely effected.Type: GrantFiled: August 12, 1998Date of Patent: April 11, 2000Assignee: World Properties, Inc.Inventor: Vincent R. Landi
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Patent number: 5972811Abstract: An electrical substrate material is presented comprising a thermosetting matrix of polybutadiene or polyisoprene and a co-curable second resin distinct from the first resin. A peroxide cure initiator and/or crosslinking agent may optionally be added. The presence of a very high surface area particulate filler, preferably fumed silica, is also preferred, in that its presence results in a prepreg which has very little tackiness and can therefore be easily handled by operators. This low tackiness feature allows for the use of conventional automated layup processing, including foil cladding, using one or more known roll laminators. While the prepreg of this invention is tack-free enough to be handled relatively easily by hand, it is also tacky enough to be tacked to itself using a roll laminator (e.g., nip roller) at room temperature.Type: GrantFiled: June 4, 1998Date of Patent: October 26, 1999Assignee: World Properties, Inc.Inventors: Michael E. St. Lawrence, Doris I. Hand, Vincent R. Landi, Robert H. Walker, Samuel Gazit, Raymond R. Miskiavitch
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Patent number: 5858887Abstract: An electrical substrate material is presented comprising a thermosetting matrix of polybutadiene or polyisoprene in an amount of 25 to 50 volume %; a woven glass fabric in an amount of 10 to 40 volume %; a particulate, preferably ceramic filler, in an amount of from 5 to 60 volume %; and a flame retardant. Importantly, the composition comprises only a single resin, i.e., polybutadiene or polyisoprene. A peroxide cure initiator and/or crosslinking agent may optionally be added. The presence of a very high surface area particulate filler, preferably fumed silica, is also preferred, in that its presence results in a prepreg which has very little tackiness and can therefore be easily handled by operators. This low tackiness feature allows for the use of conventional automated layup processing, including foil cladding, using one or more known roll laminators.Type: GrantFiled: August 1, 1996Date of Patent: January 12, 1999Assignee: World Properties, Inc.Inventors: Michael E. St. Lawrence, Doris I. Hand
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Patent number: 5854142Abstract: A harness frame of light weight manufactured from a laminated plate material is disclosed. The laminated plate material comprises (a) a composite material layer comprising a resin matrix and a reinforcing layer formed of reinforcing fibers and (b) metallic layers superposed one each on the opposite surfaces of the composite material layer. In a preferred mode, resin sheets and reinforcing layers of reinforcing fibers are alternately superposed, two metallic layers are set in place one each on the vertically opposite surfaces of the superposed layers, and the layers are heated and compressed with a pressing machine to induce thermal welding of the component layers. The laminated plate material has the metallic layers superposed with high adhesive strength on the opposite surfaces of a composite material layer having a plurality of reinforcing layers embedded in a resin matrix.Type: GrantFiled: May 16, 1996Date of Patent: December 29, 1998Assignee: YKK CorporationInventors: Hirokazu Inoguchi, Mikiya Fujii, Haruo Matsushima, Yoshinori Masuda, Yoshiharu Tanaka
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Patent number: 5837624Abstract: To enhance the tear strength without increasing the thickness, a woven glass cloth having a mass of 15 to 30 g/m.sup.2, for use as a base material for printed wiring board material, is characterized in that the weft or warp is provided by a 75 denier or more strand, thicker than the warp, and thread count of the thicker strand per unit length is set smaller than that of the other strand.Type: GrantFiled: October 15, 1996Date of Patent: November 17, 1998Assignees: Matsushita Electric Works, Ltd., Nitto Boseki Co., LTd.Inventors: Kozo Sakaguchi, Fumio Nagamine, Keita Miyasato, Hiromasa Hattori, Tatsuya Watanabe, Akinori Hibino
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Patent number: 5686155Abstract: A main body of a hollow cylindrical member is formed of a wound preimpregnation sheet made of reinforcing fibers impregnated with synthetic resins. A synthetic resins layer with a metallic member is provided onto an outer periphery of the main body for reinforcing and/or decorative property. The metallic member is in the form of a thin film bonded to an outer periphery of the synthetic resins layer or a net-like metallic member embedded in the layer.Type: GrantFiled: June 5, 1995Date of Patent: November 11, 1997Assignee: Daiwa Seiko, Inc.Inventors: Hiroyasu Suzue, Yuichi Aizawa
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Patent number: 5645926Abstract: A flexible fire and heat resistant material comprising an intimate mixture of organic intumescent filler and organic fibres adapted to char intensely within the temperature range of 200.degree. C. to 500.degree. C. The added presence of inorganic fibre components enhances the structural integrity of this structure both during char formation up to 500.degree. C. and at higher temperatures up to 1200.degree. C. once char oxidation takes place.Type: GrantFiled: February 3, 1995Date of Patent: July 8, 1997Assignee: British Technology Group LimitedInventors: Arthur Richard Horrocks, Subhash Chander Anand, Barry Jakeman Hill