Plural Layers Formed By Uniting Randomly Associated Particles Patents (Class 264/113)
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Patent number: 7897246Abstract: A man-made, molded article is provided. The article includes a profile including a planar wall, and an adjacent integral molded depression having a contoured wall extending downwardly from the planar wall. The contoured wall includes a bead portion, a cove portion, and a ledge between the bead and cove portions. The articles are stackable, one above another for transport, in a nestable relationship in which multiple contact zones are present between the contoured walls of an adjacently stacked pair of the molded articles. The contact zones include an arcuately extending contact interface zone between the bead exterior and interior surfaces. The depression has a substantially uniform thickness varying by no more than about +1 percent to about ?11 percent in relation to a thickness of the planar wall. Related methods and assemblies are also provided.Type: GrantFiled: April 30, 2008Date of Patent: March 1, 2011Assignee: Masonite CorporationInventor: Steven K Lynch
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Patent number: 7892473Abstract: A pill delivery and packing apparatus having a feeder tube for delivering pills is provided. The feeder tube has a helical delivery chute that extends between an inlet side and an exit side of the tube. The delivery chute has a helical inner contour and a rectangular cross section that corresponds to the shape of the pills. The helical delivery chute is configured such that each of the pills rotates while proceeding through the delivery chute, whereby such rotation of the pills prevents jamming of the pills in the delivery chute. Independently extendable pins are used to alternately block and open the delivery chute, thus providing an escapement mechanism for dispensing pills. The tube also has an outer surface defining a helical outer contour that guides a rotatable tray on which pills are disposed. Associated apparatuses and methods are also provided.Type: GrantFiled: September 14, 2006Date of Patent: February 22, 2011Assignee: Aylward Enterprises, LLCInventor: John Thomas Aylward
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Patent number: 7891964Abstract: A pump system comprising a delivery assembly configured to feed a solid material under operational power of a first drive motor, and a screw pump comprising a housing that at least partially defines a barrel of the screw pump, an extrusion tip secured to the housing at a first end of the barrel, a liquefier secured to the housing and intersecting with the barrel, and an impeller extending at least partially through the barrel. The liquefier is configured to receive the solid material fed from the delivery assembly, to at least partially melt the received solid material, and to direct the at least partially melted material to the barrel, and the impeller is configured to drive the at least partially melted material that is directed to the barrel toward the extrusion tip under operational power of a second drive motor.Type: GrantFiled: February 11, 2008Date of Patent: February 22, 2011Assignee: Stratasys, Inc.Inventors: Robert L. Skubic, James W. Comb, Jerome K. Grudem, Jr., William J. Swanson, John Samuel Batchelder, Steven M. Brose
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Publication number: 20110024936Abstract: A method for producing an object formed through solid freeform fabrication includes dispensing a binder on successive layers of build material with a single first dispensing member; and coloring the successive layers with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member. Another method for producing an object through solid freeform fabrication includes dispensing a first binder on successive layers of build material with a single first dispensing member; and dispensing a second binder on the successive layers of build material with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member.Type: ApplicationFiled: August 11, 2010Publication date: February 3, 2011Inventors: David C. Collins, Laura Kramer
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Patent number: 7879393Abstract: The invention relates to a method for applying fluids, especially particle material, on a area that is to be coated, wherein the fluid is applied on the area to be coated in front of a blade when observed from the direction of forward movement of the blade and said blade is then displaced on the applied fluid. The method is characterized in that the blade performs an oscillation similar to a rotational movement.Type: GrantFiled: March 26, 2002Date of Patent: February 1, 2011Inventors: Ingo Ederer, Rainer Höchsmann, Harald Türck
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Patent number: 7879282Abstract: A method of selectively combining particulate material, for example plastics material by sintering, comprises providing a layer of particulate material, providing radiation, for example using a radiation source over the layer, and varying the absorption of the provided radiation across a selected surface portion of the layer to combine a portion of the material of the layer. The method may comprise varying radiation absorption by varying the intensity of the radiation incident on the surface portion of the layer, or alternatively may comprise varying the radiation absorptive properties of the particulate material over the selected surface portion of the layer, for example by printing a radiation absorbent material onto the surface portion.Type: GrantFiled: July 2, 2004Date of Patent: February 1, 2011Assignee: Loughborough University Enterprises LimitedInventors: Neil Hopkinson, Poonjolai Erasenthiran
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Patent number: 7875091Abstract: A rapid structuring media cartridge includes a cartridge body, a first binder and first abrasive particles. The cartridge is operable to deposit successive patterned layers including the first binder and first abrasive particles to form an abrasive structure.Type: GrantFiled: February 22, 2005Date of Patent: January 25, 2011Assignee: Saint-Gobain Abrasives, Inc.Inventors: Damien Nevorct, Gwo Swei, Alain Zanoli
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Patent number: 7867302Abstract: A method of facilitating abrasive article manufacturing includes providing a rapid tooling system to a consumer and providing a cartridge to the consumer. The cartridge has a cartridge body, a first binder and first abrasive particles. The cartridge is configured to operate as part of the rapid tooling system and is operable to deposit the first binder and the first abrasive particles in successive patterned layers to form an abrasive structure.Type: GrantFiled: February 22, 2005Date of Patent: January 11, 2011Assignee: Saint-Gobain Abrasives, Inc.Inventors: Damien Nevoret, Gwo Swei, Alain Zanoli
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Patent number: 7850885Abstract: A device and a method for the manufacturing of a three-dimensional object (3) by solidifying of layers (25, 26) of a powder material at locations corresponding to the respective cross-section of the object (3) is provided. The device comprises a recoater (24) for applying the layers of the powder material (27) in the building area (5) which is moveable across the building area (5). The recoater (24) is designed with a rigid blade (21a, 21b) which is rigidly connected to the recoater (24). For preheating the powder material (27), the recoater (24) is provided with a heating device (20, 23) which is at least partially integrated into the recoater. In this way it is possible to preheat the powder already during or prior to applying it as a layer and thereby shortening the whole building time for the three-dimensional object (3).Type: GrantFiled: April 28, 2006Date of Patent: December 14, 2010Assignee: EOS GmbH Optical SystemsInventors: Jochen Philippi, Hans Perret, Helmar Langer
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Patent number: 7847057Abstract: By a temper treatment a polyaryletherketone powder is processed such that it is particularly suited for the use in a method for a layer-wise manufacturing of a three-dimensional object. To this effect the powder is tempered at a temperature that is at least 20° C. above the glass transition temperature for at least 30 minutes before it is used as building material.Type: GrantFiled: April 3, 2008Date of Patent: December 7, 2010Assignee: EOS GmbH Electro Optical SystemsInventors: Frank Müller, Andreas Pfister, Martin Leuterer
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Patent number: 7848838Abstract: A digital assembler for creating three-dimensional objects from digital materials made out of discrete components comprises an assembly head, error correction mechanism, parts feeder, and a controller. The assembly head comprises several blades, each with a different function, that move in a linear direction as a unit, assembling the object line-by-line. One blade adds digital materials, another performs error recognition, another performs error removal, and another fills in new digital material where previously removed. In a method for building a structure out of digital materials, a new line is fed to the assembly head and added to the structure. Simultaneously, the new line is pressed down, the last line is checked for errors, the line before last is removed if errors were found during the last cycle, and the line second before last is replaced if it was removed during the previous cycle.Type: GrantFiled: June 25, 2007Date of Patent: December 7, 2010Assignee: Massachusetts Institute of TechnologyInventors: Neil Gershenfeld, Patrik Kunzler, George Alex Popescu
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Patent number: 7841851Abstract: A cementitious material delivery system may include a pump configured to pump cementitious material and an accumulator. The accumulator may be a decoupling accumulator and may contain a reservoir configured to store cementitious material, an accumulator inlet to the reservoir configured to receive cementitious material pumped by the pump, an accumulator outlet configured to deliver cementitious material from the reservoir, and a pressure applicator configured to apply pressure to the cementitious material that is delivered from the accumulator outlet.Type: GrantFiled: November 2, 2006Date of Patent: November 30, 2010Assignee: University of Southern CaliforniaInventor: Behrokh Khoshnevis
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Patent number: 7837458Abstract: A device (1) for manufacturing a three-dimensional object by a layer-wise solidification of a building material at positions in the respective layers that correspond to the object is provided. The device has a machine frame (2, 3, 4, 5) and support legs (51) that are mounted at the machine frame and by which the device (1) is supported on a substrate. The support legs (51) are arranged such that a three-point support of the device (1) at the substrate is given and at least two support legs (51) are mounted at the machine frame such that they are adjustable in height.Type: GrantFiled: November 20, 2007Date of Patent: November 23, 2010Assignee: EOS GmbH Electro Optical SystemsInventors: Hans Perret, Thomas Halder, Siegfried Schimitzek
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Publication number: 20100291178Abstract: Methods and apparatuses are provided for musculoskeletal tissue engineering. For example, a scaffold apparatus is provided which comprises microspheres of selected sizes and/or composition. The microspheres are layered to have a gradient of microsphere sizes and/or compositions. The scaffold provides a functional interface between multiple tissue types.Type: ApplicationFiled: December 22, 2009Publication date: November 18, 2010Applicant: The Trustees of Columbia UniversityInventors: Helen H. Lu, Jeffrey Spalazzi, Kathie Dionisio
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Patent number: 7833001Abstract: A printing system for creating a three-dimensional object. The printing system includes a plurality of printheads including a first printhead configured to print a first material and a second printhead configured to print a second material. The system includes one or more curing mechanisms for curing the printed materials. The system includes at least one object incorporation device configured to incorporate a non-printed object into the three-dimensional object when partially complete. At least one printhead is configured to print one or more electrical connections to the incorporated object.Type: GrantFiled: April 17, 2007Date of Patent: November 16, 2010Assignee: Silverbrook Research Pty LtdInventor: Kia Silverbrook
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Patent number: 7829000Abstract: A method for creating a three-dimensional solid freeform fabrication object includes spreading a reactive powder on a substrate, selectively dispensing a core binder in the reactive powder to form a core material, and selectively dispensing a shell binder in the reactive powder to form a shell on the core material.Type: GrantFiled: February 25, 2005Date of Patent: November 9, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Isaac Farr, Terry M. Lambright
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Patent number: 7820573Abstract: A fibrous blanket material is provided having a first fibrous layer selected from a group of fibers consisting of polyester, polypropylene, polyethylene, fiberglass, natural fibers, nylon, rayon and blends thereof and a layer of meltblown polypropylene fibers. In an alternative embodiment the blanket may also include a second fibrous layer made of the same material as the first layer where the layer of meltblown polypropylene fibers is sandwiched between the two fibrous layers.Type: GrantFiled: July 24, 2008Date of Patent: October 26, 2010Assignee: OCV Intellectual Capital, LLC,Inventor: Jeffrey A. Tilton
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Patent number: 7815160Abstract: A mandrel for use as a substrate in the manufacture of woven or braided articles may comprise an inner core of foam; at least a first intermediate layer of carbon fiber-reinforced resin; and an outer layer of glass fiber-reinforced resin. The foam core may comprise a high density, closed cell polyurethane foam that is formed of a desired size and shape. The fibers in the intermediate layer and outer layer may be, for example, chopped fibers, continuous longitudinally aligned fibers, circumferentially wound fibers, obliquely aligned fibers, or the fibers may have a woven or braided pattern. Multiple mandrel may be joined together to form complex mandrel shapes such as curves, ovals, and circles.Type: GrantFiled: March 30, 2007Date of Patent: October 19, 2010Assignee: A & P TechnologyInventor: Steven Stenard
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Patent number: 7811488Abstract: A method for manufacturing a molded article with at one or more cores uses compression molding apparatus that includes upper and lower punches that have a double structure comprising a central punch and an outer punch that surrounds the periphery of the central punch. The central punch and the outer punch are capable of independent sliding motions and compressing operations. Molding materials are supplied for a core and an outer layer respectively. The molding materials are compressed by the punches to form molded articles that include the core. The method may be executed in a rotary compression molding machine.Type: GrantFiled: December 12, 2002Date of Patent: October 12, 2010Assignee: Sanwa Kagaku Kenkyusho Co., LtdInventors: Yuichi Ozeki, Yoshiya Kondo, Yukinao Watanabe
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Patent number: 7811487Abstract: This invention relates to a method for forming a three dimensional sintered body (100) comprising the steps of a) providing a basic mould having a configuration adapted to the sintering body that is to be produced, b) treating the surface of the basic mould to facilitate application of a first surface layer (130) of the sintered body (100), c) applying powder particles (131) onto the basic mould, to form said first surface layer (130), d) applying at least one more layer (120) on top of said first surface layer (130), e) heat treating the basic mould (400) and the particles to form a sintered body, wherein step b) is performed by providing an adhering (604) to the basic mould arranged to adhere the particles (131) of at least a portion of the surface layer (130).Type: GrantFiled: November 25, 2005Date of Patent: October 12, 2010Assignee: PAKIT International Trading Company IncInventors: Björn Nilsson, Lars Graffton, Leif Båskman
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Patent number: 7807077Abstract: New methods and systems for manufacturing a three-dimensional form, comprising steps of providing a plurality of particulates; contacting the particulates with an activation agent; contacting particulates having the activation agent with a binder material that is activatable by the activation agent; at least partially hardening the binder for forming a layer of the three-dimensional form; and repeating these steps to form the remainder of the three-dimensional form. Following sequential application of all required layers and binder material to make the form, the unbound particles are appropriately removed (and optionally re-used), to result in the desired three-dimensional form. The invention also contemplates a novel method for preparing a form, where unbound particulates free of binder material are re-claimed.Type: GrantFiled: June 11, 2004Date of Patent: October 5, 2010Assignee: Voxeljet Technology GmbHInventors: Rainer Hochsmann, Ingo Ederer
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Patent number: 7799253Abstract: The invention relates to a method and a device for applying for a flowable material, especially a particulate material, in individual superimposed layers across a support (50), the flowable material being first filled from a stationary feed station (10) into a storage container (24) of an application device. In the application device (30), which travels back and forth across the support, the flowable material is distributed inside the storage container across the entire length of the device and is then metered through a slot into a metering shaft in such a manner that the filling level in the metering shaft remains constant during application of the flowable material from the metering shaft onto the support.Type: GrantFiled: November 21, 2006Date of Patent: September 21, 2010Assignee: Prometal RCT GmbHInventors: Rainer Höchsmann, Martin Stachulla, Bernd Krabler, Stefan Hühn, Alexander Müller, Frank Sonntag
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Patent number: 7794636Abstract: A method for producing an object formed through solid freeform fabrication includes dispensing a binder on successive layers of build material with a single first dispensing member; and coloring the successive layers with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member. Another method for producing an object through solid freeform fabrication includes dispensing a first binder on successive layers of build material with a single first dispensing member; and dispensing a second binder on the successive layers of build material with at least one second dispensing member, where the second dispensing member over-dispenses the first dispensing member.Type: GrantFiled: June 13, 2003Date of Patent: September 14, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: David C Collins, Laura Kramer
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Patent number: 7780429Abstract: The present invention relates to a three-dimensional molding device for producing a three-dimensional molded object. The three-dimensional molding device comprises a receptacle for retaining a light-curing resin, a light source for irradiating light to cure the light-curing resin retained inside the receptacle, wherein the three-dimensional molded object is produced by curing the light-curing resin, and a flexible three-dimensional molded object holding plate, which adheres to the light-curing resin and holds the three-dimensional molded object when the resin in the receptacle is cured.Type: GrantFiled: November 2, 2007Date of Patent: August 24, 2010Assignee: Roland DG CorporationInventor: Shigeki Kikuchi
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Patent number: 7780886Abstract: An insulation product is provided comprising an insulation mat comprising randomly oriented fibers. The mat has first and second major surfaces and a pair of side portions. A vapor retardant facing layer is bonded to at least one of the major surfaces of the mat. The facing layer has a fiber orientation such that the facing layer has a ratio of machine direction tensile strength to cross machine direction tensile strength which permits the facing layer to be separated by hand along a substantially straight line selected in the machine direction.Type: GrantFiled: March 4, 2004Date of Patent: August 24, 2010Assignee: Certainteed CorporationInventor: Michael J. Lembo
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Patent number: 7781052Abstract: In making a particle board by forming a mat from particles obtained from a wooden material and pressing the mat, a particle board light in weight and excellent in strength, dimensional stability and surface properties can be made at a low cost by using a wooden material of low specific gravity and carrying out the press of the particle board with a high compression ratio in mat thickness before and after the press.Type: GrantFiled: May 30, 2005Date of Patent: August 24, 2010Assignee: Sumitomo Forestry Co., Ltd.Inventors: Go Matsufuji, Kenji Ogura, Toshio Yasuda
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Publication number: 20100201022Abstract: A manufacturing method of tiles includes the steps of: preparing mixed powder having a water content of 2 to 7% by mixing 30 to 80 parts by weight of calcium hydroxide powder or dolomite plaster powder, 20 to 70 parts by weight of porous aggregate, 0.1 to 5 parts by weight of a first photocatalyst and water; filling the mixed powder into a mold of a molding machine; forming a formed body by pressurizing the filled mixed powder; curing the formed body in a carbon dioxide atmosphere; and forming a thin layer made of a second photocatalyst on a surface of the formed body.Type: ApplicationFiled: January 28, 2010Publication date: August 12, 2010Applicant: Tagawasangyo Co., Ltd.Inventors: Nobuyoshi YUKIHIRA, Tetsuro Oike, Katsuyuki Nakano
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Patent number: 7771183Abstract: Solid imaging apparatus and methods for use are disclosed that reduce the amount of uncured solid imaging build material remaining on a completed build object following the completion of the solid imaging build process. The amount of uncured build material is reduced through the use of either an uncoating web that removes excess build material from the build object during the course of the building process or an ink jet source of build material that uses only as much build material as is necessary for the fabrication of the build part. Also disclosed is an imager assembly for use with such a solid imaging apparatus that incorporates two or more individual imagers in an array and accounts for variations in the intensity and alignment of adjacent imagers. The apparatus can be modified for semi-continuous operation and for integrating into a manufacturing operation, if desired.Type: GrantFiled: September 17, 2007Date of Patent: August 10, 2010Assignee: 3D Systems, Inc.Inventors: Charles W. Hull, Jouni Partanen, Ray Soliz, William J. Pappas
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Patent number: 7767132Abstract: A process for forming a three-dimensional article in sequential layers in accordance with a digital model of the article. The process comprises the steps of defining a layer of powder material, applying a liquid reagent to the powder layer in a pattern corresponding to the digital model, and repeating these steps to form successive layers. The powder comprises a first reactive component and the liquid includes a second active component capable of reacting with the first reactive component so that the article is built up in layers.Type: GrantFiled: March 7, 2008Date of Patent: August 3, 2010Assignee: Huntsman Advanced Materials Americas, Inc.Inventors: Ranjana Patel, Richard J. Peace, Yong Zhao, Jeremy Powell, Michael Rhodes
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Patent number: 7767121Abstract: A method of making a treating wash includes mixing brass granules with acetone, mixing carbon nanotube material, iron pyrite granules and copper granules in the acetone brass mixture, and straining the liquid from the remaining solid material. Methods of treating materials such as brass granules, iron pyrite granules, carbon nanotube material, and brass granules comprises washing the materials in the treating wash, followed by straining and drying the materials.Type: GrantFiled: November 10, 2008Date of Patent: August 3, 2010Assignee: Kryron Global, LLCInventor: John M. Bourque
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Patent number: 7766641Abstract: A printer system is provided for developing a three dimensional (3D) printed structure. The system includes a plurality of spaced apart sets of printing devices. A conveyor system is arranged to serially convey a print medium operatively with respect to each set so that printed voxels from each successive set can form successive layers of the 3D printed structure upon the print medium. A placement mechanism is configured to place an object upon layers of the 3D printed structure. The placement mechanism includes a translation mechanism configured to translate the object at substantially the same velocity as the conveyance of the print medium during placement of the object. A plurality of curing mechanisms is interleaved between the sets of printing devices and is configured to cure the printed voxels.Type: GrantFiled: July 9, 2007Date of Patent: August 3, 2010Assignee: Silverbrook Research Pty LtdInventor: Kia Silverbrook
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Patent number: 7767130Abstract: The invention relates to a method and device for production of a three-dimensional article from a material, by means of layered application. According to the invention, a dropwise application is carried out, whereby drops of reaction components are ejected by a nozzle arrangement (3) and applied to a base reaction component (2), arranged on a substrate (1). The material for the three-dimensional article is formed in layers, with reaction of the base reaction component (2) with reaction components on contact, whereby the material is formed on a reaction of the base reaction component with one of the reaction components to give a material with one material property and on another reaction of the base reaction component with another of the reaction components to give a material with another material property. On production of the three-dimensional article, an article section is produced in which a gradual transition between the one material property and the other material property is generated.Type: GrantFiled: May 24, 2005Date of Patent: August 3, 2010Assignee: Voxeljet Technology GmbHInventors: Philip Elsner, Stefan Dreher, Ingo Ederer, Brigitte Voit, Janke Gudrun, Michael Stephan
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Publication number: 20100191207Abstract: The present invention aims to provide liquid-pervious nonwoven fabric allowing body fluids to be spot-permeated. A nonwoven fabric includes core-sheath type composite fiber of 100 to 30% by weight wherein a core component comprises high fusion point resin and a sheath component comprises a low fusion point resin. In a cut surface of the nonwoven fabric extending in parallel to a first direction, the composite fibers extend in the first direction with repetitive curvatures in a thickness direction of the nonwoven fabric. In a cut surface of the nonwoven fabric extending in a second direction, the composite fibers 2 extend in the thickness direction TD at an average fiber angle of 75° or less. The individual composite fibers intersect one another and fused together at respective intersection points by fusion of the low fusion point resin forming the sheath component.Type: ApplicationFiled: March 18, 2008Publication date: July 29, 2010Applicant: UNI-CHARM CORPORATIONInventors: Toru Oba, Satoshi Mizutani, Hideyuki Ishikawa
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Patent number: 7758792Abstract: An artificial bone forming method, comprising a) a powder layer forming step (32) for forming, into a flat powder layer (6), a powder bone material (5) having biocompatibility and hardening by hydration, b) a partial hardening step (34) for jetting an aqueous solution (7) with biocompatibility to a part of the powder layer to harden a jetted portion (6a) by hydration, and c) an artificial bone forming step (36) for repeating the steps a) and b) for lamination to form a specified artificial bone (9) of a predetermined three-dimensional structure in which the hardened portions (6a) are connected to each other.Type: GrantFiled: July 28, 2004Date of Patent: July 20, 2010Assignees: Riken, New X-national Technology K.K.Inventors: Kenji Yamazawa, Masahiro Anzai, Hideo Yokota, Shigeki Suzuki
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CHOPPED FIBER BUNDLE, MOLDING MATERIAL, AND FIBER REINFORCED PLASTIC, AND PROCESS FOR PRODUCING THEM
Publication number: 20100178495Abstract: A chopped fiber bundle includes a large number of unidirectionally arranged reinforced fibers. The length of each of the reinforced fibers is in the range of 5 to 100 mm. The chopped fiber bundle has a transition segment in which the number of the reinforced fibers increases toward the central part of the chopped fiber bundle in the aligned direction of the reinforced fibers with both ends in the aligned of the reinforced fibers in the chopped fiber bundle being a starting point. The level of a change in total sectional area of the large number of reinforced fibers is not more than 0.05 mm2 per mm in the aligned direction of the reinforced fibers over the whole area in the longitudinal direction of the chopped fiber bundle.Type: ApplicationFiled: April 23, 2008Publication date: July 15, 2010Applicant: TORAY INDUSTRIES, INC.Inventors: Ichiro Taketa, Eisuke Wadahara, Narumichi Sato -
Patent number: 7754120Abstract: A process for the manufacture of a three layer composite panel with improved moisture resistance, minimal thickness swell, thermal stability, and a smooth hard surface suitable for direct lamination. The composite panel is produced utilizing recycled polyurethanes, preferably obtained from vehicle headliners, insulated foam panels, foam insulation, energy absorbent panels, and polyisocyanurate foams along with materials incidental to at least one recycled component including composite resins, cloth, adhesives, fiberglass, and plastics. The composite panel is composed of a core layer pressed between two surface layers.Type: GrantFiled: March 19, 2009Date of Patent: July 13, 2010Inventor: Reinhard H. Kessing
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Patent number: 7745685Abstract: A technique for incorporating odor control agent particles into an absorbent article is provided. More specifically, the odor control particles are “homogenously” distributed (e.g., in a substantially uniform manner) within an airformed fiber matrix of an absorbent core of an absorbent article. An absorbent core containing such a homogeneously distributed odor control particles may possess a greater surface area for contacting malodorous compounds, thereby increasing the likelihood of odor reduction.Type: GrantFiled: October 31, 2005Date of Patent: June 29, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David Arthur Fell, Megan Lan, William Anthony Georger, Kelly Davis Arehart, Bao Trong Do, Stephanie Michelle Martin
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Publication number: 20100155985Abstract: A part cake defining a build produced by laser sintering and the surrounding unfused powder is contained in an enclosure, aid the enclosure includes displaceable wall portions for compressing the part cake to support the build against distortion during rapid cooling from a cooling fluid. The enclosure enables the part cake to be quickly and reliably cooled either within the laser sintering system or outside the laser sintering system. A source of cooling fluid connects to the enclosure and a lid holds the part cake in place as cooling fluid is forced through the pore volume of the cake. An inert gas blanket apparatus is also provided to reduce or prevent oxidation of the part cake and/or to cool the part cake. Once the part cake is cooled, the build produced by laser sintering may be removed from the part cake.Type: ApplicationFiled: December 18, 2008Publication date: June 24, 2010Inventors: Kevin Patrick McAlea, Thomas Hsing Pang, Praveen Tummala
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Patent number: 7736578Abstract: A method or procedure for the construction of a laminated compound or mould made up of a number of layers of particle material on top of each other, which are hardened and joined to each other in predetermined onsite areas, which can differ from each other depending on position and expansion, so that from the predetermined hardened areas of the laminated compound at least one mould is formed. The layers are deposited individually one after another in predetermined layer thickness by the dispensing of particle material from a dispensing device during its movement above a working field and according to computer data in predetermined areas.Type: GrantFiled: June 25, 2007Date of Patent: June 15, 2010Inventor: Ingo Ederer
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Publication number: 20100117253Abstract: A method of making a treating wash includes mixing brass granules with acetone, mixing carbon nanotube material, iron pyrite granules and copper granules in the acetone brass mixture, and straining the liquid from the remaining solid material. Methods of treating materials such as brass granules, iron pyrite granules, carbon nanotube material, and brass granules comprises washing the materials in the treating wash, followed by straining and drying the materials.Type: ApplicationFiled: November 10, 2008Publication date: May 13, 2010Inventor: John M. Bourque
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Patent number: 7713454Abstract: Arrangement for producing a three-dimensional product, which arrangement comprises a work table on which said three-dimensional product is to be built up, a powder dispenser which is arranged so as to distribute a thin layer of powder on the work table for forming a powder bed, a radiation gun for delivering energy to the powder, fusing together of the powder then taking place, means for guiding the beam emitted by the radiation gun over said powder bed for forming a cross section of said three-dimensional product by fusing together parts of said powder bed, and a control computer in which information about successive cross sections of the three-dimensional product is stored, which cross sections build up the three-dimensional product, where the control computer is intended to control said means for guiding the radiation gun over the powder bed according to an operating scheme forming a cross section of said three-dimensional body, said three-dimensional product being formed by successive fusing together of sType: GrantFiled: December 12, 2003Date of Patent: May 11, 2010Assignee: ARCAM ABInventor: Morgan Larsson
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Patent number: 7713455Abstract: The present invention provides a method for manufacturing a molding with a core by using compression molding means having upper and lower double-structured punches; the method comprising the steps of supplying molding material for the core and molding material for the outer layer respectively, the step of compression-molding the molding material for the core and/or the molding material for the outer layer, and the step of compression-molding the whole molding with a core, wherein: the step of supplying the molding material for the outer layer posterior to the step of supplying the molding material for the core is performed until a tip of the lower center punch finally takes a position protruding from a tip of the lower outer punch; and the step of compression-molding the whole molding with a core is performed with the tips of the lower center punch and the lower outer punch aligned with each other.Type: GrantFiled: November 11, 2004Date of Patent: May 11, 2010Assignees: Sanwa Kagaku Kenkyusho Co., Ltd., Kikusui Seisakusho Ltd.Inventors: Yuichi Ozeki, Kentaro Izumi, Kenji Harada
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Patent number: 7704441Abstract: A method for forming air-laid fibrous articles. The steps of the method can include providing a stream of loose air-entrained first fibers, providing a core pocket operatively related to the stream of loose air-entrained first fibers, the core pocket including a central foraminous forming surface and an edge foraminous forming surface, applying a negative pressure to one of the foraminous forming surfaces, applying a positive pressure to the other foraminous forming surface, depositing the first fibers on one of the foraminous forming surfaces, providing a stream of loose air-entrained second fibers, operatively relating the core pocket to the stream of loose air-entrained second fibers, applying a negative pressure to one of the foraminous forming surface, and depositing the second fibers on that foraminous forming surface.Type: GrantFiled: November 15, 2006Date of Patent: April 27, 2010Assignee: The Procter & Gamble CompanyInventors: Curtis Hunter Van Valkenburgh, Claudio Antonio Matos, Karen Juliana Fegelman
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Patent number: 7704439Abstract: A method for forming air-laid fibrous articles. The method includes the steps of providing a stream of loose air-entrained fibers, providing a core pocket assembly comprising a central foraminous forming surface and an edge foraminous forming surface, applying a first pressure to the central foraminous forming surface, applying a second pressure to the edge foraminous forming surface wherein the second pressure applied to the edge foraminous forming surface differs from the first pressure applied to the central foraminous forming surface, depositing a portion of the stream of loose air-entrained fibers on the central foraminous forming surface, and depositing a portion of the stream of loose air-entrained fibers on the edge foraminous forming surface.Type: GrantFiled: November 15, 2006Date of Patent: April 27, 2010Assignee: The Procter & Gamble CompanyInventors: Claudio Antonio Matos, Curtis Hunter Van Valkenburgh, Karen Juliana Fegelman
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Publication number: 20100098925Abstract: A multi-layer nanocomposite material includes a first layer of a first polymeric material and a second layer of nanocomposite material. The nanocomposite material includes a second polymeric material and a nanofiller material exfoliated therewithin. The second layer is established on the first layer, or the first layer is established on the second layer. The multi-layer nanocomposite material exhibits enhanced physical properties and enhanced ductility due to the improved stress dissipation of the secondary layers during impact.Type: ApplicationFiled: October 6, 2006Publication date: April 22, 2010Inventors: Paula D. Fasulo, William R. Rodgers, Robert A. Ottaviani
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Patent number: 7700020Abstract: A method of producing an object through solid freeform fabrication preferably includes ejecting drops of different volumes to form a layer of the object. The drops may be binder drops ejected into a build material or may include the build material used to form the object.Type: GrantFiled: January 9, 2003Date of Patent: April 20, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeffrey A. Nielsen, Vladek Kasperchik
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Publication number: 20100086767Abstract: A process of producing a multilayer polytetrafluoroethylene article includes filling a pre-form with two or more layers of a polytetrafluoroethylene fine powder, wherein at least one layer comprises a functional additive and at least one layer comprises a processing aid; disposing a separation layer between the two or more layers, wherein the separation layer is configured to provide structural integrity to each layer during filling; extruding the two or more layers to obtain a multilayer extrudate; removing the processing aid; and stretching the multilayer extrudate to form the multilayer polytetrafluoroethylene article.Type: ApplicationFiled: October 6, 2008Publication date: April 8, 2010Applicant: GENERAL ELECTRIC COMPANYInventor: Gopakumar Thottupurathu
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Patent number: 7690909Abstract: A stereolithography apparatus having a resin vat with resupply containers in one-way flow communication and a leveling container in two-way flow communication, an automatic offload cart to remove and replace build support platforms, an elevator assembly for supporting and releasably retaining a build platform removably attached to the stereolithography apparatus frame such that elevator forks supporting the build platform can be released into the vat and removed from the stereolithography apparatus with the vat, and a recoater assembly and recoater blade for mapping the resin surface in the vat and applying a fresh coating of resin to a cross-section being built in the vat.Type: GrantFiled: September 30, 2005Date of Patent: April 6, 2010Assignee: 3D Systems, Inc.Inventor: Ben Wahlstrom
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Patent number: 7686989Abstract: A method for manufacturing a dental restoration, including: determining an external form and dimensions available for a completed restoration; obtaining an image of a natural tooth to be replaced with the restoration or a tooth corresponding therewith, wherein the image comprises at least the external surface visible in use of the to be replaced or corresponding tooth, with variations in the appearance therein; defining locally on and at least to visible depth below the surface of appearance-determining properties of at least one material to be applied for the restoration in accordance with the obtained image and the variations in the appearance therein; constructing the restoration, including the steps of: providing at least one material to be applied in non-cohesive form; and providing cohesion to the material in accordance with the available form and dimensions.Type: GrantFiled: April 19, 2002Date of Patent: March 30, 2010Assignee: Degudent GmbHInventor: Joseph M. Van der Zel
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Patent number: 7686995Abstract: A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also includes a vacuum system for loading powder into a feed reservoir or chamber. The vacuum system can also be used to cleanup excess powder. Other powder control features include powder gutters and magnetic powder plows. During printing, a cleaning system operates to remove powder from the printheads. In the event of a printhead or jet failure, the failure can be detected and corrective measures taken automatically. After printing, the model can be depowdered and infiltrated in an enclosure.Type: GrantFiled: August 15, 2008Date of Patent: March 30, 2010Assignee: Z CorporationInventors: Thomas Davidson, Robert A. Phillips, Andres T. Hernandez, David B. Russell, Kevin Roche, Walter H. Zengerle, III, Andrew Berlin, Joshua P. Kinsley, Benjamin Daniel Sweet-Block, Darul Kisai