Forming Articles By Uniting Randomly Associated Particles Patents (Class 264/460)
  • Patent number: 11027336
    Abstract: A splatter shield system for an additive manufacturing machine includes one or more splatter shields configured to cover at least a portion of a build area during energy application such that the at least one splatter shield is positioned between an energy source of an additive manufacturing machine and the build area during energy application. The one or more splatter shields are transparent to an energy source (e.g., a laser) of the additive manufacturing system such that energy application occurs through the splatter shield.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 8, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Sergey Mironets, Alexander Madinger, Diana Giulietti, Dmitri Novikov
  • Patent number: 11020874
    Abstract: In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A liquid functional material, including an anionically stabilized susceptor material, is applied to at least a portion of the ceramic build material. A sintering aid/fixer fluid, including a cationically stabilized amphoteric alumina particulate material, is applied to the at least the portion of the ceramic build material. The applied anionically stabilized susceptor material and the applied cationically stabilized amphoteric alumina particulate material react to immobilize the anionically stabilized susceptor material, thereby patterning the at least the portion of the ceramic build material.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: June 1, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James Elmer Abbott, Jr., Vladek Kasperchik, Joshua Flynn
  • Patent number: 10882302
    Abstract: An additive manufacturing apparatus includes a dispensing system positionable over a platen to deliver a powder, an actuator to move the dispensing system along a scan axis, and an energy source to fuse a portion of the powder. The dispensing system has a hopper to hold the powder and a dispenser. The dispenser includes a channel extending along a longitudinal axis from a proximal end to a distal end. The proximal end of the channel of the dispenser is configured to receive the powder from the powder source. A powder conveyor is positioned within the channel to move the powder from the proximal end along a length of the channel, and a plurality of apertures are arranged along the longitudinal axis of the channel. The dispenser is configured such that flow of powder through each aperture is independently controllable.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: January 5, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Hou T. Ng, Raanan Zehavi, Nag B. Patibandla
  • Patent number: 10744713
    Abstract: The present disclosure generally relates to methods for additive manufacturing (AM) that utilize breakable structures in the process of building objects, as well as novel breakable support structures to be used within these AM processes. A support structure includes a weakened portion and the object includes an outlet. The method includes breaking the removable support structure at the weakened portion into at least two parts.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 18, 2020
    Assignee: General Electric Company
    Inventor: Zachary David Fieldman
  • Patent number: 10603892
    Abstract: An additive manufacturing apparatus includes a dispensing system positionable over a platen to deliver a powder, an actuator to move the dispensing system along a scan axis, and an energy source to fuse a portion of the powder. The dispensing system has a hopper to hold the powder and a dispenser. The dispenser includes a channel extending along a longitudinal axis from a proximal end to a distal end. The proximal end of the channel of the dispenser is configured to receive the powder from the powder source. A powder conveyor is positioned within the channel to move the powder from the proximal end along a length of the channel, and a plurality of apertures are arranged along the longitudinal axis of the channel. The dispenser is configured such that flow of powder through each aperture is independently controllable.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: March 31, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Hou T. Ng, Raanan Zehavi, Nag B. Patibandla
  • Patent number: 10604277
    Abstract: An acoustic honeycomb panel is plugged with an acoustic honeycomb plug. The acoustic honeycomb plug is adhesively bonded in the panel using a honeycomb seam. The honeycomb seam is composed of a honeycomb support that is located within the seam channel and an adhesive. Using honeycomb seams to adhesively bond acoustic honeycomb plugs into acoustic honeycomb panels is useful in repairing damaged areas of acoustic honeycomb panels that are located in the acoustic treatments for jet engines.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: March 31, 2020
    Assignee: HEXCEL CORPORATION
    Inventors: Andres Baca, Clark Smith, Earl Ayle, Heather Botello
  • Patent number: 10478994
    Abstract: In one example, a method of fabricating a three-dimensional object includes depositing a layer of build material, depositing a coalescing agent onto the layer of build material according to a slice of three-dimensional model data, irradiating the coalescing agent with microwave radiation such that the coalescing agent converts the microwave radiation into heat to coalesce the build material in which the coalescing agent was deposited.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: November 19, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David A. Champion, James Elmer Abbott, Jr.
  • Patent number: 10413997
    Abstract: A leveling slider exchange arrangement for use in an apparatus for manufacturing three-dimensional work pieces by irradiating powder layers with electromagnetic radiation or particle radiation, the leveling slider exchange arrangement comprises a powder application device adapted to apply a raw material powder onto a carrier and a leveling slider adapted to level the raw material powder applied onto the carrier by means of the powder application device. An attachment mechanism is adapted to releasably attach the leveling slider in a leveling slider attachment position in the powder application device. A storage chamber is adapted to store at least one exchange leveling slider, the storage chamber being connected to a connecting channel adapted to connect the storage chamber to the leveling slider attachment position in the powder application device.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 17, 2019
    Assignee: SLM Solutions Group AG
    Inventors: Dieter Schwarze, Toni Adam Krol
  • Patent number: 10391753
    Abstract: The present disclosure generally relates to methods for additive manufacturing (AM) that utilize support structure in the process of building objects that may be removed by rotating the support structure to a second orientation before removal, as well as novel support structures to be used within these AM processes. The support structures are fabricated in a first orientation and then rotated to the second orientation. The support structures are removed by passing through an outlet of the object.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Zachary David Fieldman, Daniel Joerger, Neal Dunham
  • Patent number: 10376957
    Abstract: A three-dimensional forming apparatus includes: a stage; a material supply mechanism that supplies a sintered material in which metal powder and a binder are kneaded to a stage; a drying mechanism that dries the sintered material supplied from the material supply mechanism to the stage to form a dry sintered material; an energy radiation mechanism that supplies energy capable of sintering the dry sintered material; and a driving mechanism that is able to three-dimensionally move the material supply mechanism, the drying mechanism, and the energy radiation mechanism relative to the stage. The material supply mechanism includes a material ejection unit supplying a predetermined amount of the sintered material in a gravity direction. The energy radiation mechanism includes an energy radiation unit outputting the energy. The material ejection unit and the energy radiation unit are held in one holding mechanism.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: August 13, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Tomoyuki Kamakura
  • Patent number: 10322574
    Abstract: An apparatus includes a platen and a dispensing system overlying the platen. The dispensing system includes a powder source. The dispensing system further includes a powder conveyor extending over the top surface of the platen, rings arranged coaxially along a longitudinal axis of the powder conveyor, and a cap plate extending along a length of the tube. The powder conveyor is configured to receive powder from the powder source. The powder conveyor is configured to move the powder. The rings form a tube surrounding the powder conveyor to contain the powder. Each concentric ring includes a ring opening. Each ring is configured to be independently rotatable. The cap plate includes a cap plate opening. The powder is dispensed from the tube through the ring opening and the cap plate opening when the ring opening and the cap plate opening are aligned.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 18, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Hou T. Ng, Raanan Zehavi, Nag B. Patibandla
  • Patent number: 10293593
    Abstract: Disclosed are methods and apparatus for selectively sintering particulate material, the method comprising: providing a layer (6) of particulate material; providing an amount of a radiation absorbent material over a selected surface portion of the layer (6) of particulate material; providing an amount of a material that comprises a plurality of electrically conductive elements (20) over at least part of the selected surface portion of the layer (6) of particulate material; and providing radiation (8) across the selected surface portion of the layer of particulate material so as to sinter a portion of the material of the layer (6) including causing the plurality of electrically conductive elements (20) to become embedded in the sintered portion of material.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: May 21, 2019
    Assignee: BAE SYSTEMS PLC
    Inventors: Mark Alfred Potter, Matthew Nicholas Stevens
  • Patent number: 9718129
    Abstract: A method for forming a three-dimensional article, said method comprising the steps of: providing a predetermined amount of powder for forming a first powder layer on a start plate, distributing said predetermined amount of powder with a powder distributor for forming said first powder layer, directing an energy beam over said start plate causing said first powder layer to fuse in selected locations according to a model to form a first cross section of said three-dimensional article. At least one image of the powder to be distributed is captured with a camera at least one time during said distribution of said powder on said start plate for forming said first powder layer and at least one value of at least one parameter in said image detected with said camera is compared with a reference parameter value.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: August 1, 2017
    Assignee: Arcam AB
    Inventors: Ulric Ljungblad, Martin Wildheim
  • Patent number: 9597730
    Abstract: A powder bed deposition apparatus comprises a movable build plate, a powder delivery system, an energy beam apparatus capable of selectively steering at least one focused energy beam over successive quantities of metal powder, a non-metallic barrier layer, and an anchor removably secured to the build plate. The non-metallic barrier layer is disposed over a metal upper surface of the build plate. The anchor has a metal bonding surface flush with the non-metallic barrier layer, the non-metallic barrier layer and the anchor defining a removable build assembly with a powder bed working surface.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: March 21, 2017
    Assignee: United Technologies Corporation
    Inventors: Sergey Mironets, Agnes Pu Hang Chau Klucha, Wendell V. Twelves, Jr.
  • Patent number: 9402414
    Abstract: A method for making a smokeless tobacco article can include combining thermoplastic polymer particles with tobacco particles to form a mixture of particles, compressing the mixture of particles within a pressing apparatus to form the mixture into a predetermined shape, separating the mixture from the pressing apparatus such that it retains the predetermined shape, and heating the mixture outside of the pressing apparatus to at least partially melt at least some of the thermoplastic polymer particles and form a matrix of polymer and tobacco particles.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 2, 2016
    Assignee: ALTRIA CLIENT SERVICES LLC
    Inventors: Gregory James Griscik, Carl Gregory Miller
  • Patent number: 9339972
    Abstract: Inter-layer bonding in objects manufactured by 3D printing techniques is improved by one or more targeted heat sources (THSs) that preheat a targeted portion of existing object material before additional material is added to the object. 3D Printing is also improved, optimized or calibrated by pre- or post-heating a targeted area. THS elements may be fixed, mobile, or a combination thereof to apply heat to targeted areas. A THS may be integrated in or as an add-on to an existing 3D printer. A THS controller may use 3D printer information, such as a current direction or a future direction of printing, to select one or more THSs and to perform other targeted heat operations, such as setting energy levels, aiming, moving, etc. Properties, e.g., strength, of 3D printed objects with improved interlayer bonding may, for example, be several multiples better than the same object printed without improved interlayer bonding.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: May 17, 2016
    Assignee: Titan Systems, LLC
    Inventor: Mark Gordon
  • Patent number: 9149467
    Abstract: The present invention relates to a sustained-release composition containing 2,3,4,5-tetrahydro-2,8-dimethyl-5-[2-(6-methyl-3-pyridyl)ethyl]-1H-pyrido[4,3-b]indole or a pharmaceutically acceptable salt thereof as an active ingredient, preparation thereof and the compound. The composition is suitable for oral administration by one time per day, and achieves the peak plasma concentration at 1.0 to 3 hours after oral administration. The composition is suitable for manufacturing a medicament for treatment of cognitive dysfunction syndrome, Alzheimer's disease, Parkinson's disease, Huntington's disease, or senile dementia.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: October 6, 2015
    Assignee: Institute of Pharmacology and Toxicology Academy of Military Medical Science P.L.A. China
    Inventors: Song Li, Wu Zhong, Zhibing Zheng, Junhai Xiao, Bing Li, Yunde Xie, Xinbo Zhou
  • Patent number: 9140542
    Abstract: An analytical model simulates the propagation of radiation through a coated continuous web where layer thickness and refractive index, as variables, determine the speed and direction of transmitted radiation. The model predicts characteristics of transmitted radiation based on characteristics of incident radiation and initially assigned values for layer thicknesses. Coating thickness(s) are ascertained in a process whereby incident radiation of known characteristics is directed onto a coated web and thereafter, actual measurements of transmitted radiation are compared to predicted characteristics. Using a fitting algorithm, the assigned thickness(es) of the layer(s) of the model are adjusted and the process repeated until the actual and predicted values are within desired limits at which time, the assigned thickness(es) represent the measured calipers.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: September 22, 2015
    Assignee: Honeywell ASCa Inc.
    Inventors: Stephane Savard, Adam Krolak
  • Patent number: 9060976
    Abstract: Disclosed in certain embodiments is a controlled release oral dosage form comprising a therapeutically effective amount of a drug susceptible to abuse together with one or more pharmaceutically acceptable excipients; the dosage form further including a gelling agent in an effective amount to impart a viscosity unsuitable for administration selected from the group consisting of parenteral and nasal administration to a solubilized mixture formed when the dosage form is crushed and mixed with from about 0.5 to about 10 ml of an aqueous liquid; the dosage form providing a therapeutic effect for at least about 12 hours when orally administered to a human patient.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: June 23, 2015
    Assignees: Purdue Pharma L.P., The P.F. Laboratories, Inc., Purdue Pharmaceuticals L.P.
    Inventors: Curtis Wright, Benjamin Oshlack, Christopher Breder
  • Patent number: 8992205
    Abstract: The instant invention relates to a device and method for manufacturing patterns in layers. The device includes an auxiliary frame, a vertically displaceable build platform, a dispensing device for applying a binder material onto the build platform, a mounting platform, a mounting platform, and a spreader device for applying particulate material. The mounting platform preferably is connected to the auxiliary frame and includes a cut-out for the build platform. The dispensing device, the spreader device, and the build platform are connected to the mounting platform, so that the dispensing device, the spreader device and the build platform are cable of being mounted, adjusted, and wired to the mounting platform while located outside the auxiliary frame.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: March 31, 2015
    Assignee: Voxeijet AG
    Inventors: Ingo Ederer, Andreas Hartman
  • Patent number: 8940220
    Abstract: This disclosure provides methods of flash sintering and composition created by these methods.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: January 27, 2015
    Assignee: The Regents of the University of Colorado, A Body Corporate
    Inventors: Rishi Raj, Marco Cologna, Andre Luiz Geromel Prette, Vincenzo M. Sglavo, John Francis
  • Publication number: 20150024169
    Abstract: A method for printing a three-dimensional part and a support structure with an electrophotography-based additive manufacturing system. The method includes developing a support layer of the support structure from a soluble support material with a first electrophotography engine, and transferring the developed support layer from the first electrophotography engine to a transfer medium. The method also includes developing a part layer of the three-dimensional part from an ABS part material with a second electrophotography engine, and transferring the developed part layer from the second electrophotography engine to the transfer medium. The method further includes moving the attracted part and support layers to a layer transfusion assembly with the transfer medium, and transfusing the moved part and support layers together to previously-printed layers with the layer transfusion assembly.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 22, 2015
    Inventor: Trevor I. Martin
  • Publication number: 20140361465
    Abstract: The invention relates to a method for recycling furniture containing wooden parts, in particular bed bases, the method comprising the following steps: a step (20) of grinding the wooden parts to form ground wood; a mixing step (22) in which a mixture is prepared, the mixture comprising a predetermined quantity of bi-component fibers; a step (24) of forming a non-consolidated web of material from the mixture; a step (26) of thermally consolidating the non-consolidated web of material; a step (27) of calendering the consolidated web of material.
    Type: Application
    Filed: July 26, 2011
    Publication date: December 11, 2014
    Applicant: Ecoval Environnement
    Inventors: Remy Lanza, Salim Touati
  • Publication number: 20140349213
    Abstract: In one aspect of the present invention, a method of fabricating a composite membrane includes: forming a first polymer solution from a first polymer and a second polymer solution from a second polymer, respectively, where the first polymer includes a charged polymer and the second polymer includes an uncharged polymer; electrospinning, separately and simultaneously, the first and second polymer solutions to form a dual fiber mat with first polymer fibers and second polymer fibers; and processing the dual fiber mat by softening and flowing one of the first or second polymer fibers to fill in the void space between the other of the first and second polymer fibers so as to form the composite membrane. In some embodiments, the composite membrane may be a proton exchange membrane (PEM) or an anion exchange membrane (AEM).
    Type: Application
    Filed: August 6, 2012
    Publication date: November 27, 2014
    Applicant: VANDERBILT UNIVERSITY
    Inventors: Peter N. Pintauro, Andrew Park, Jason Ballengee
  • Patent number: 8883064
    Abstract: A spiral fastener is provided. In another aspect, a spiral fastener, is made of layers of material and/or a light curable material. Another aspect uses a three-dimensional printing machine to emit material from an ink jet printing head to build up a fastener having a spiral formation.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: November 11, 2014
    Assignee: A. Raymond & Cie
    Inventor: Nicholas Jackson
  • Publication number: 20140329953
    Abstract: A powder mixture is described, which is suitable for a layer-wise manufacturing of a three-dimensional object by solidifying a building material in powder form. The powder mixture consists of a mixture of a first polyamide 12 powder and a second polyamide 12 powder, wherein the first polyamide 12 powder is characterized by an increase of its viscosity number determined in accordance with ISO 307 that is less than 10%, when the powder is exposed for 20 hours to a temperature that lies 10° C. below its melting temperature under nitrogen atmosphere, and the second polyamide 12 powder is characterized by an increase of its viscosity number, determined in accordance with ISO 307, by 15% or more, when the powder is exposed for 20 hours to a temperature that lies 10° C. below its melting temperature under nitrogen atmosphere.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Applicant: EOS GMBH ELECTRO OPTICAL SYSTEMS
    Inventor: Stefan Paternoster
  • Publication number: 20140314613
    Abstract: A method of selectively combining particulate material, comprising: (i) providing a layer of particulate material to a part bed; (ii) providing radiation to sinter a portion of the material of the layer; (iii) providing a further layer of particulate material overlying the prior layer of particulate material including the previously sintered portion of material; (iv) providing radiation to sinter a further portion of the material within the overlying further layer and to sinter said further portion with the previously sintered portion of material in the prior layer; (v) successively repeating blocks (iii) and (iv) to form a three-dimensional object; and wherein at least some of the layers of particulate material are pre-heated with a heater prior to sintering a portion of the material of the respective layer, the heater being configured to move relative to, and proximate, the particulate material.
    Type: Application
    Filed: August 1, 2012
    Publication date: October 23, 2014
    Applicant: Loughborough University
    Inventors: Neil Hopkinson, Helen Rhiannon Thomas
  • Patent number: 8840829
    Abstract: The present invention relates to a polymer powder which comprises polyamide, and to the use of this powder for shaping processes, and also to moldings produced from this polymer powder. The shaping processes are layer-by-layer processes which use powders, where regions of the respective layer are selectively melted via introduction of electromagnetic energy. The selectivity may be achieved, with no intention of restricting the invention thereto, be achieved via masks, application of inhibitors, of absorbers, or of susceptors, or via focusing of the energy introduced. After cooling, the regions then solidified can be removed in the form of moldings from the powder bed.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: September 23, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Sylvia Monsheimer, Franz-Erich Baumann
  • Publication number: 20140243442
    Abstract: A method of manufacturing a moulded article from expanded resin particles, the method comprising: placing the particles and a dielectric heat transfer fluid in a mould located between a pair of electrodes; generating a radio-frequency electromagnetic field between the electrodes; applying the electromagnetic field to the mould to dielectrically heat the heat transfer fluid and hence the particles; and heating the particles to a temperature sufficient to cause their surfaces to soften, so that the particles fuse, thereby to form the moulded article as shaped by the mould; preferably, wherein the radio-frequency electromagnetic field has a wavelength greater than an average dimension (or dimensions) of the moulded article.
    Type: Application
    Filed: October 5, 2012
    Publication date: August 28, 2014
    Inventors: Andrew Coles, Arnaud Coulon, Dave Ellis, Georg Schloms
  • Publication number: 20140239553
    Abstract: The invention relates to a method and device for generatively producing components, said device comprising a radiation device for selectively radiating a powder bed, and an induction device for inductively heating the component produced by radiating the powder bed, Said induction device comprising at least one voltage source which can simultaneously produce alternating voltages with at least two different frequencies.
    Type: Application
    Filed: September 12, 2012
    Publication date: August 28, 2014
    Applicant: MTU AERO ENGINES AG
    Inventors: Joachim Bamberg, Erwin Bayer, Abdreas Jakimov, Herbert Hanrieder, Bertram Kopperger, Wilhelm Satzger, Thomas Hess, Karl-Heinz Dusel, Stefan Schneiderbanger
  • Patent number: 8778255
    Abstract: A component, in particular an engine component, which has at least one mark with a predetermined three-dimensional shape for determining a stress in the component and where the component is constructed by a generative manufacturing method, is disclosed.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: July 15, 2014
    Assignee: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Roland Hessert
  • Publication number: 20140175708
    Abstract: The three-dimensional object building apparatus includes a powder delivering unit that delivers a powder on an object building area, a powder flattening device that flattens the powder delivered from the powder delivering unit to form a powder layer, and a light beam radiating unit that is disposed above the object building area and radiates a light beam on the powder layer to sinter or melt solidify the powder for building an object. The three-dimensional object building apparatus also includes a transferring mechanism that moves the light beam radiating unit in three-dimensional directions, and a shroud that moves integrally with the light beam radiating unit and surrounds a space above an area of the powder layer that is smaller than the object building area around a radiation of the light beam. The powder delivering unit and the powder flattening device move integrally with the light beam radiating unit.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 26, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takaharu Echigo, Akio Shimoda, Keisuke Takahashi, Kazunori Kawai, Tadashi Yoshida
  • Publication number: 20140158945
    Abstract: Embodiments of the invention relate generally to increasing the thermoelectric performance of a material.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 12, 2014
    Applicant: Evident Technologies
    Inventors: Clinton T. Ballinger, Adam Z. Peng, Susanthri Perera
  • Patent number: 8739409
    Abstract: The invention relates to a method for manufacturing products by applying material at least partially in layers to form a structure, in particular by selective laser melting (SLM), said method comprising the steps of: (a) providing a base plate, (b) applying a layer of a curable material, (c) selectively curing predetermined zones of the applied layer on the basis of geometrical data of the product, (d) repeating steps (b) and (c) until the geometry of a first partial volume of the product has been created in the form of a cured material and (e) removing the uncured material. According to the invention, a reference mark is provided, the unit formed by the base plate and the first volume zones is clamped into a specific position by means of the reference mark and the respective second partial volume of the respective product is cut from the base plate, preferably by machining, in particular CNC milling.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: June 3, 2014
    Assignee: BEGO Medical GmbH
    Inventors: Carsten Vagt, Ralf Wehning
  • Publication number: 20140140882
    Abstract: A method and apparatus for manufacturing a three-dimensional object by additive layer manufacturing. The method includes providing layers of material in powder form on a support inside a chamber, and irradiating each layer with a beam before providing the subsequent layer. A gas atmosphere is maintained inside the chamber during the irradiation steps. The pressure and/or the composition of the gas atmosphere is controlled where at least two different gas atmospheres having different predetermined pressures and/or compositions are inside the chamber during irradiation of the layers, the beam spot size on the layers is controlled such that at least two different beam spot sizes are utilized during irradiation, and/or the temperature of the gas atmosphere inside the chamber and/or of the layer being irradiated is controlled such that at least two different temperatures of the gas atmosphere and/or of the layer being irradiated are present during irradiation of the layers.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 22, 2014
    Inventor: Freerk Syassen
  • Patent number: 8658076
    Abstract: The present invention provides a process for producing at least one three-dimensional object, comprising: providing a material to be solidified; delivering electromagnetic radiation and/or synergistic stimulation in a pattern or an image to a building region for solidifying said material; wherein said delivering of electromagnetic radiation and/or synergistic stimulation is performed selectively to a defined area or volume of said material to be solidified; and wherein an energy density of electromagnetic radiation and/or synergistic stimulation is controlled and/or adjusted in a border region of said pattern or image and/or is varied in border regions of patterns or images of different building regions of said material, to have an energy density different from the building region other than said border region(s), wherein the controlling and/or adjustment is dependent on, alone or in combination: (a) intensity of electromagnetic radiation and/or synergistic stimulation delivered to said defined area or volume
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 25, 2014
    Assignee: Envisiontec GmbH
    Inventor: Ali El-Siblani
  • Publication number: 20140048741
    Abstract: A filtration media is disclosed comprising functionalized particles distributed throughout a sintered porous matrix, the sintered porous matrix derived from a combination of components comprising first ultra-high molecular weight polyethylene initially comprising a plurality of non-porous particles having a first shape that is substantially spherical; second ultra-high molecular weight polyethylene initially comprising a plurality of non-spherical perforated particles having a second shape that is convoluted; and third ultra-high molecular weight polyethylene initially comprising a plurality of non-spherical perforated particles having a third shape that is convoluted, wherein the functionalized particles comprise a range from about 20% by weight to about 90% by weight of the sintered porous matrix.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 20, 2014
    Applicant: 3M Innovative Properties Company
    Inventors: Richard A. Prince, John L. Pulek, Robert Gieger
  • Publication number: 20140050921
    Abstract: Materials and methods is present for manufacturing fiber reinforced parts. A powder material comprising a matrix material of a size particular distribution comprising substantially oriented fiber of a predetermined length distribution and diameter (L/D). A manufactured part that has substantially randomly oriented fiber is provided using an energy delivery system and the powder material.
    Type: Application
    Filed: December 7, 2012
    Publication date: February 20, 2014
    Applicant: THE BOEING COMPANY
    Inventor: THE BOEING COMPANY
  • Publication number: 20140031496
    Abstract: Methods of forming polymeric articles using plasma treated polymer resins, and orthopedic implants comprising a polymeric article wherein the polymeric article has reactive groups bonded to polymer molecules in an interior region of the polymeric article.
    Type: Application
    Filed: November 2, 2011
    Publication date: January 30, 2014
    Applicant: Zimmer, Inc.
    Inventors: Brian H. Thomas, Donald L. Yakimicki, Oludele O. Popoola, Michael Wallick
  • Patent number: 8617274
    Abstract: The present invention relates to ultra-hard cutting elements, and in particular cutting elements or compacts formed by a pulsed electrical field assisted HPHT sintering process or a spark plasma HPHT sintering process. In an embodiment, a method of forming a polycrystalline ultra-hard material includes providing a mixture of ultra-hard particles, placing the mixture of ultra-hard particles into an enclosure, placing the enclosure into a press cell assembly having a heater, applying a repeated high-energy pulse of direct current to the heater to heat the ultra-hard particles, and pressing the enclosure at sufficient pressure to form a polycrystalline ultra-hard material.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: December 31, 2013
    Assignee: Smith International, Inc.
    Inventors: Guodong Zhan, Youhe Zhang, Yuelin Shen
  • Patent number: 8591786
    Abstract: Method for manufacturing floor panels having a top layer having a composition based on a synthetic material. At least at two opposite sides, the floor panels have profiled edge areas that include at least coupling parts. For manufacturing the floor panels, one starts from a board-shaped material, and the floor panels are formed at least partially by way of a laser treatment of the board-shaped material.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 26, 2013
    Assignee: Flooring Industries Limited, SARL
    Inventors: Dries Brouckaert, Christian Vandevoorde
  • Publication number: 20130306552
    Abstract: A method of forming a filter element is disclosed comprising introducing a mixture into a mold, the mixture comprising a plurality of susceptor particles and a plurality of polymeric binder particles. Eddy currents are induced in the susceptor particles by subjecting the mixture to a high-frequency electromagnetic field, the eddy currents being sufficient to elevate the temperature of the susceptor particles to cause adjacent polymeric binder particles to be heated to at least a softening point. The susceptor particles bind with the heated polymeric binder particles in the mold to form a coherent mass. The coherent mass is cooled to form the filter element.
    Type: Application
    Filed: November 2, 2011
    Publication date: November 21, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Satishkumar Chamyvelumani, Richard A. Kirchner, Thomas J. Hamlin, William J. Feil, III, Keith D. Solomon
  • Publication number: 20130266837
    Abstract: Disclosed is a heat radiation plate for a battery module, which can effectively radiate heat accumulated in a battery module, and the battery module having the heat radiation plate. To this end, the heat radiation plate is inserted in an interlayer manner between battery cells. The heat radiation plate includes high-polymer matrix layers and a filler layer inserted in an interlayer manner between the high-polymer matrix layers, in which the filler layer is made of a conductive fiber having a three-dimensional (3D) web structure.
    Type: Application
    Filed: July 11, 2012
    Publication date: October 10, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Han Saem Lee, Kyong Hwa Song, Jin Woo Kwak, Byung Sam Choi
  • Patent number: 8540924
    Abstract: The invention relates to a method for preheating a pressed material mat (14) spread on an endlessly and continuously circulating molding band (6) during manufacture of wood material boards, wherein microwaves from one or both press surface sides are beamed into the pressed material mat (14) to preheat the pressed material mat (14) and the pressed material mat (14) is compacted and hardened by application of pressure and heat after transfer to a continuously operating press (1). The invention consists of microwaves in a frequency range of 2400-2500 MHz being used to heat the pressed material mat (14), wherein the microwaves for each press surface side are generated from 20 to 300 microwave generators (26) with magnetrons (20) of a respective output of 3 to 50 kW.
    Type: Grant
    Filed: December 27, 2008
    Date of Patent: September 24, 2013
    Assignee: Dieffenbacher GmbH Maschinen-und Anlagenbau
    Inventors: Werner Hoffman, Ulf Konekamp, Gernot von Haas
  • Publication number: 20130177766
    Abstract: The present invention relates to an apparatus for the layer-by-layer production of three-dimensional objects, to processes for layer-by-layer production, and also to corresponding shaped articles.
    Type: Application
    Filed: December 20, 2012
    Publication date: July 11, 2013
    Inventors: Maik GREBE, Wolfgang DIEKMANN, Sigrid HESSEL-GELDMANN
  • Publication number: 20130171416
    Abstract: Composite particles comprising core particles completely or partially coated with a precipitated polymer, where the d50 median diameter of the core particles is from 1 to 70 ?m and wherein the core particle is an inorganic material which does not include titanium dioxide are provided. A method to prepare the particles includes dissolution of a polymer in a solvent and precipitation of the polymer in the presence of a suspension of the core particles. Further provided is a layer by layer moulding process employing the composite particles and mouldings obtained therefrom.
    Type: Application
    Filed: June 27, 2012
    Publication date: July 4, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Wolfgang DIEKMANN, Franz-Erich Baumann, Maik Grebe, Kristiane Warnke, Sylvia Monsheimer
  • Patent number: 8470234
    Abstract: A method of forming a component from solid freeform fabrication comprising the step of building an integral support around the component during manufacture thereof. The stiffness the support provides to the component is selected to minimize deformation of the component either during the manufacture of the component or during a subsequent heat treatment process.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: June 25, 2013
    Assignee: Rolls-Royce PLC
    Inventor: Daniel Clark
  • Patent number: 8449809
    Abstract: A molding, produced by a layer-by-layer process in which regions of respective polymer pulverulent layers are selectively melted via introduction of electromagnetic energy, where the process employs a powder which comprises at least one homopolyamide prepared via polycondensation of diamines and dicarboxylic acids, wherein the homopolyamide has an enthalpy of fusion of at least 125 J/g and a recrystallization temperature of at least 148° C.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: May 28, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Sylvia Monsheimer, Franz-Erich Baumann, Maik Grebe, Joerg Lohmar
  • Patent number: 8445089
    Abstract: Described herein are compositions comprising (a) 92 to 99 weight percent, of polyoxymethylene with number average molecular weight from 65,000 to 250,000 g/mole; and (b) 1 to 8 weight percent of an imidized acrylic resin obtained by treating an acrylic polymer with a monoalkyl amine, wherein the weight percents of a and b are based on their combined weight, and monoalkyl group has from one to five carbon atoms, the degree of imidization is 20% to 100% and the acid level is from 0 to about 2 weight percent of the imidized acrylic resin. The composition has significantly higher heat deflection temperature than the neat polyoxymethylene. Processes of increasing heat deflection temperature of POM compositions are described herein by blending (a) and (b), wherein the resultant melt-mixed composition has a 200% increase or greater in time to 5% creep strain relative to the same melt-mixed composition lacking (b).
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 21, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Xiyun (Serene) Fan, Ramabhadra Ratnagiri
  • Publication number: 20130122771
    Abstract: The present invention provides a method for producing a non-woven fiber fabric by spinning a molten polymer. Thus, a non-woven fiber fabric which is substantially free from a solvent, different from the case of spinning a polymer solution, but yet has an extremely small fiber size (diameter of 0.5 ?m or less) is provided. The non-woven fiber fabric comprises an olefin-based thermoplastic resin fiber, said fiber having an average fiber size of 0.01-0.5 ?m, and said non-woven fiber fabric having an average pore size of 0.01-10.0 ?m and being free from a solvent component.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 16, 2013
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Akio Matsubara, Kenichi Nakamura