Stereolithographic Shaping From Liquid Precursor Patents (Class 264/401)
  • Patent number: 11179875
    Abstract: A modular system for blow molding a container. The system may include a first portion, a second portion, and a third portion. The first portion and second portion may each include a shell, a mold removably coupled to the shell, and a top plate. The third portion may include a base and a base mold. The molds may be 3D printed. The molds together may define a blow mold cavity. The modular system may be used at lab scale, pilot scale, or full production scale. The molds may be durable and smooth enough for full production scale. Some embodiments are directed methods for making a modular system for blow molding a container.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: November 23, 2021
    Assignee: PepsiCo, Inc.
    Inventors: Advait Rasik Bhat, Stefano Giuliani, Maximiliano Rodriguez, Ellie Vineyard
  • Patent number: 11179806
    Abstract: Device for production of three-dimensional components, namely a laser melting device or laser sintering device, in which a component is produced by successive solidifying of individual layers made from solidifiable construction material, by radiation, through melting of the construction material, wherein the dimensions and/or temperature of the melt area generated by a point-shaped or line-shaped energy input can be captured by a sensor device of a process monitoring system, and sensor values for evaluation of a component quality can by deduced therefrom, wherein the radiation created by the melt area and used for the generation of the sensor values passes through the scanner used for the melt energy input, and guided to the sensor device of the process monitoring system, wherein an optical focus tracking device is arranged in the radiation path used for generation of the sensor values between the scanner and the sensor device.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 23, 2021
    Assignee: CONCEPT LASER GMBH
    Inventors: Frank Herzog, Florian Bechmann, Tobias Bokkes, Fabian Zeulner
  • Patent number: 11179926
    Abstract: The present disclosure generally relates to additive manufacturing of an object using both a digital light processing (DLP) projector and a focused energy source to irradiate a photopolymerizable material, and apparatuses and methods for the same. The DLP projector irradiates and cures an outer perimeter of the object, and the focused energy source irradiates and cures an inner region of the object. In a preferred embodiment, irradiation by both the DLP projector and the focused energy source occur from underneath a tank holding the photopolymerizable material and through a transparent window.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 23, 2021
    Assignee: General Electric Company
    Inventors: Johnny Deleon, William Murphy, Stephanie Lynn Depalma, Brian Peterson, Travis Sands, Russell Dennison, Stephen Deak, Kevin Mcevoy
  • Patent number: 11173699
    Abstract: In a stereolithography device (1), a three-dimensional object (2) is generated by curing a photosensitive substance (3) under the action of specific radiation, wherein the device includes a support unit, a radiation source (8) for generating the radiation, and a cartridge unit (10) that can be positioned on the support unit and removed therefrom. The cartridge unit (10) includes an interior space (140) surrounded by a casing (14), wherein the casing of the cartridge unit is deformable and at least partially transparent to the radiation triggering the curing process. The interior space (140) surrounded by the casing has a volume including a receiving space (4) in which the photosensitive substance (3) is present for at least a duration of an irradiation and curing process and accessible to the radiation.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: November 16, 2021
    Inventor: Klaus Stadlmann
  • Patent number: 11173660
    Abstract: A method and apparatus for the additive manufacturing of three-dimensional objects are disclosed. Two or more materials are extruded simultaneously as a composite, with at least one material in liquid form and at least one material in a solid continuous strand completely encased within the liquid material. A means of curing the liquid material after extrusion hardens the composite. A part is constructed using a series of extruded composite paths. The strand material within the composite contains specific chemical, mechanical, or electrical characteristics that instill the object with enhanced capabilities not possible with only one material.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: November 16, 2021
    Assignee: Continuous Composites Inc.
    Inventor: Kenneth Lyle Tyler
  • Patent number: 11167497
    Abstract: A method of monitoring an additive manufacturing process, in which an object is built in a layer-by-layer manner by directing a laser beam using at least one movable guiding element of a scanner to solidify selected regions of a material bed. The method includes recording position values generated from a transducer measuring positions of the at least one movable guiding element, recording sensor values generated from a sensor for detecting radiation emitted from the material bed and transmitted to the sensor by the movable guiding element of the scanner, and associating each sensor value with a corresponding one of the position values.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: November 9, 2021
    Assignee: RENISHAW PLC
    Inventors: Ceri Brown, John Dardis, Allan Christopher Norman
  • Patent number: 11161296
    Abstract: According to some aspects, techniques for reducing time-dependent fabrication artifacts in additive fabrication are provided. By selectively activating and deactivating an element of an additive fabrication device that forms solid material, adjacent regions of material may be formed sequentially, thereby reducing time-dependent fabrication artifacts at the cost of increasing the time taken to fabricate an object. In some embodiments, selective activation and deactivation of an element of an additive fabrication device that forms solid material may be performed to a subset of an object being fabricated based on an assessment of which portions of an object will be visible upon fabrication.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 2, 2021
    Assignee: Formlabs, Inc.
    Inventors: Benjamin FrantzDale, Andrey Mishchenko
  • Patent number: 11155028
    Abstract: The invention is generally a 3D printer configured for printing 3D objects using a high-viscosity photosensitive material. The 3D printer may include a fluid retaining assembly which comprises a rotating tank. A printing platform is situated in a manner such that a bottom surface of the printing platform makes contact with the printing solution in the tank. To facilitate printing using the high-viscosity printing material, a scraper assembly may be implemented in order to properly prepare the printing solution onto a surface of the tank. The scraper assembly prepares the material by scraping a layer of the material onto the surface of the tank for facilitating curing of the layer onto the printing platform.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: October 26, 2021
    Assignee: SprintRay Inc.
    Inventor: Jing Zhang
  • Patent number: 11155031
    Abstract: A nozzle for depositing fiber-reinforced polymer having a radiative chamber comprising an outer structure of a nozzle end; a cooling chamber coupled to the outer structure; and a filament guide tube extending into the cooling chamber.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 26, 2021
    Assignee: MANTIS COMPOSITES INC.
    Inventors: Michael R. Chapiro, Michael J. Delay, Ryan C. Dunn, David M. Zilar
  • Patent number: 11155039
    Abstract: An additive manufacturing method includes receiving a design model indicative of a part that may be fabricated using the additive manufacturing method, and generating expected-warping information based on the design model, the expected-warping information being indicative of an expected change in a shape of the part resulting from the additive manufacturing method. The method also includes modifying the design model based on the expected-warping information and fabricating the part using the modified design model.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 26, 2021
    Assignee: Thermwood Corporation
    Inventor: Kenneth J. Susnjara
  • Patent number: 11148357
    Abstract: A method of making a composite article comprised of a first component (10) and a second component (30) includes (a) providing a first component (10) and an optically transparent member (22) having a build surface with the first component having a first three-dimensional interfacing segment formed thereon; (b) immersing the first three-dimensional interfacing segment in polymerizable liquid (21); (c) forming an intermediate object by irradiating a build region with light through an optically transparent member and also advancing the first three-dimensional component and the build surface away from one another to form from the polymerizable liquid (21) a second component (30) on said first three-dimensional interfacing segment, with the second component including a second three-dimensional interfacing segment in contact with the first three-dimensional interfacing segment; then (d) optionally washing the intermediate; and then (e) further solidifying the second three-dimensional component (30) on said first thr
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: October 19, 2021
    Assignee: Carbon, Inc.
    Inventors: David Moore, Matthew Jeffery Garrity, William Joseph Stark, Sean Friedrich Walter McCluskey
  • Patent number: 11148319
    Abstract: An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. The two-dimensional energy patterning system may be used to control a state of matter of each successive additive layer. Accordingly, the system may be used to alter the chemical bond arrangement of the material forming the various additive layers.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 19, 2021
    Assignee: Seurat Technologies, Inc.
    Inventors: James A. DeMuth, Erik Toomre
  • Patent number: 11148320
    Abstract: Methods, processes, systems, devices and apparatus are provided for additive manufacture resulting in the 3D printing of ceramic materials and components with a thickness greater than three millimeters (3 mm). A sulfur-free 3D printable formulation comprises a liquid inorganic polymer resin using Stereolithograpy (SLA) printers and Digital Light Processing (DLP) curing of the polymer resin via the chemical bonding of the materials rather than sintering. Thus, the process has shorter manufacturing intervals, significantly lower energy use and produces larger scale ceramic components having less linear shrinkage, less mass loss and high ceramic yield with no corrosive sulfur compounds present in the ceramic component.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 19, 2021
    Assignee: Dynamic Material Systems, LLC
    Inventors: Walter Sherwood, Matthew Stephens, Arnold Hill, William Easter
  • Patent number: 11142660
    Abstract: In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprise 10-70 wt. % or 20-40 wt. % of a cyclopolymerizable monomer, based on the total weight of the ink. The cyclopolymerizable monomer comprises an acrylate moiety and an ethenyl or ethynyl moiety, and the ?-carbon of the acrylate moiety and the ?-carbon of the ethenyl or ethynyl moiety may have a 1,5-, 1,6-, 1,7-, or 1,8-relationship. Additionally, an ink described herein can have a viscosity of 1600 centipoise (cP) or less at 30° C., or of 500 cP or less at 30° C. and can be used to print a desired 3D article having mechanical properties similar to those of articles formed from thermoplastic materials.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 12, 2021
    Assignee: 3D SYSTEMS, INC.
    Inventors: Pingyong Xu, John Fong
  • Patent number: 11135790
    Abstract: Provided herein are methods of forming a three-dimensional object, which may be carried out by: (a) forming a three-dimensional intermediate by polymerization of a polymerizable liquid in an additive manufacturing process, the polymerizable liquid comprising a light polymerizable component; then (b) contacting at least a portion of the three-dimensional intermediate to a penetrant fluid, the penetrant fluid carrying a solidifiable component, the contacting step carried out under conditions in which the solidifiable component penetrates into the three-dimensional intermediate; (c) optionally but preferably separating the three-dimensional intermediate from the penetrant fluid; and then (d) solidifying and/or curing the solidifiable component in the three-dimensional intermediate to form the three-dimensional object.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 5, 2021
    Assignee: Carbon, Inc.
    Inventors: Bob E. Feller, Kai Chen, Jason P. Rolland
  • Patent number: 11137243
    Abstract: A method of additive manufacturing includes dispensing successive layers of feed material to form a polishing pad, and directing first and second radiation beams toward the layers of feed material to form a polishing pad. Dispensing each successive layer of the layers of feed material includes dispensing a drop of feed material, and directing the first and second radiation beams toward the layers of feed material includes, for each successive layer, directing the first radiation beam toward the drop of feed material to cure an exterior surface of the drop of feed material, and directing the second radiation beam toward the drop of feed material to cure an interior volume of the drop of feed material.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: October 5, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Hou T. Ng, Nag B. Patibandla, Sivapackia Ganapathiappan
  • Patent number: 11135680
    Abstract: Methods and computer-readable media for producing at least one portion of a layer of a three-dimensional component by irradiating at least one powder layer by at least one high-energy beam, e.g., a laser beam are disclosed. The methods include irradiating the powder layer by the at least one high-energy beam in a processing field, wherein the at least one high-energy beam is moved in a continuous oscillating movement over the powder layer in a first direction to produce a line-shaped irradiation region in which the powder layer is melted, and wherein the line-shaped irradiation region is moved over the powder layer in a second direction that differs from the first to produce the portion of the layer of the three-dimensional component.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: October 5, 2021
    Assignee: TRUMPF Laser- und Systemtechnik GmbH
    Inventors: Frank Peter Wuest, Thomas Koenig, Damien Buchbinder, Joachim Wagner, Johannes Bauer
  • Patent number: 11130284
    Abstract: A print head is disclosed for use in an additive manufacturing system. The print head may include a discharge outlet configured to discharge a continuous reinforcement, and an applicator disposed upstream of the discharge outlet and configured to apply a solid film to the continuous reinforcement prior to discharge. The print head may also include a cure enhancer configured to soften the solid film after discharge.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: September 28, 2021
    Assignee: Continuous Composites Inc.
    Inventor: Kenneth Lyle Tyler
  • Patent number: 11130260
    Abstract: The present invention relates to a system for casting a component by an adjustable molding box. A generating unit serves for generating a component model of the component to be molded, a transmitting unit serves for transmitting the component model via a data network to a determining unit, and the determining unit serves for determining a casting mold model based on the component model. The determining unit is configured such that adjustment data for adjusting the adjustable molding box based on the casting mold model are generatable. A control unit is coupled to the determining unit such that the adjustment data are providable to the control unit, wherein the control unit is configured such that the control unit adjusts the molding box, based on the adjustment data, with a casting mold, which is indicative for a negative profile of the component, and the component is castable by the adjusted molding box.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: September 28, 2021
    Assignee: Cubes GmbH
    Inventors: Edwin Meindl, Christian Falch
  • Patent number: 11130170
    Abstract: Integrated core-shell investment casting molds that provide tongue or groove structures corresponding, respectively, to groove or tongue structures in the surface of the turbine blade or stator vane, including in locations that are otherwise inaccessible provide a pathway to restrict cooling flow between turbine blades to the flowpath.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 28, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Gregory Terrence Garay, Meredith Dubelman, Xi Yang, Tingfan Pang, Michael Scott Cole, Brian David Przeslawski, Douglas Gerard Konitzer, Nicole Barba, Kirk Gallier, Brian Keith
  • Patent number: 11130287
    Abstract: A system for three-dimensional (3D) optical trap printing (OTP) comprises a first particle susceptible to being cured by a light beam, a first light source to generate a trapping light beam to trap the particle, and a second light source to generate a curing light beam to cure the first particle. Using scanning and other optics, the trapping light beam may move the first particle to a desired printing location at which the curing light beam may cure the first particle, thereby adding the first particle to a printed structure. Using OTP, structures may be printed in any orientation, with or without support structures. Additionally, OTP allows for printing composite materials, high resolution color printing, printing of complex structures without sacrificial filler material, simultaneous printing of multiple particles, and combining particles at a print location.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: September 28, 2021
    Inventor: Daniel Smalley
  • Patent number: 11117323
    Abstract: A vat heating device is provided, including a vat and a heater. The vat has a bottom plate. The vat is used to accommodate a photosensitive resin. The heater is disposed on the bottom plate, adjacent to the photosensitive resin. The heater is used to heat the photosensitive resin. The heater is on an optical path of a light source for curing the photosensitive resin. A photocuring three-dimensional molding system containing the above vat heating device is also provided.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: September 14, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Keh-Su Chang, Yen-I Chou, Jau-Shiu Chen, Sheng-Kai Hsiao, Wei-Chih Hsiao, Chun-Fang Hsu
  • Patent number: 11117327
    Abstract: Method for operating an apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (4), wherein at least one part of a first layer (7) is irradiated based on at least one first irradiation parameter and at least one part of a second layer (8) is irradiated based on at least one second irradiation parameter, wherein the at least one first irradiation parameter and the at least one second irradiation parameter are different for the at least two layers (7, 8).
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 14, 2021
    Assignee: CONCEPT LASER GMBH
    Inventor: Jürgen Werner
  • Patent number: 11117315
    Abstract: A carrier plate assembly for use in producing a three-dimensional object by bottom-up stereolithography includes: (a) an upper support; (b) an adhesion plate having a substantially flat planar lower adhesion surface, on which surface the three-dimensional object can be formed; (c) at least one energy absorber interconnecting the upper support and the adhesion plate; and (d) a carrier lock portion connected to the upper support.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: September 14, 2021
    Assignee: Carbon, Inc.
    Inventors: Bob E. Feller, Gregory W. Dachs, II
  • Patent number: 11110518
    Abstract: A method of manufacturing a three-dimensional object by a layer-by-layer application and selective solidification of a building material by exposure to a radiation. A hollow body is arranged in a process chamber above a build area which hollow body substantially extends from the build area in a direction of an upper side of the wall of the process chamber. Gas is supplied to the process chamber in such a manner and gas is discharged from the process chamber in such a manner that a lower pressure exists in the region of the process chamber lying within the hollow body than in the region of the process chamber lying outside the hollow body.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 7, 2021
    Assignee: EOS GmbH Electro Optical Systems
    Inventor: Andreas Baumann
  • Patent number: 11104062
    Abstract: An adhesive dispensing device, for use in layered object manufacturing (LOM) systems for rapid prototyping of a 3 dimensional (3D) object, for the application of adhesive to a target substrate S defining a layer of a 3D object, the device comprising an adhesive applicator wheel having a plurality of circumferentially spaced apart recesses for receiving adhesive, the adhesive dispensing device being movable relative to the target substrate to deposit adhesive at selected locations thereon, wherein the adhesive dispensing device is mounted for translation relative to the target substrate via a pivot mount configured such that the wheel aligns with its direction of translation relative to the target substrate to deposit adhesive at the selected locations.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 31, 2021
    Assignee: Mcor Technologies Limited
    Inventors: Fintan MacCormack, Conor MacCormack
  • Patent number: 11097488
    Abstract: A printer and method having a print assembly movable over a print zone, and a controller associated with the print assembly. The printer is capable to receive a second print assembly with an associated second controller. The first controller positions the first print assembly over the print media and to position the second print assembly over the print media. The first controller directs the first print assembly in printing. The second controller to direct the second print assembly in printing.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: August 24, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bruce A. Axten, Thomas Griffiths, Matthew A. Shepherd, Thieu X. Dang
  • Patent number: 11097451
    Abstract: A system for releasing an additive manufactured part from a build location is disclosed having a cure inhibitor transport system to resupply a cure inhibitor at a cure inhibited photopolymer resin layer where the additive manufactured part is built, the transport system comprises a cure inhibiting reservoir to initially hold the cure inhibitor, a cure inhibiting distributor layer adjacent to the cure inhibiting reservoir through which the cure inhibitor passes from the cure inhibitor reservoir to the cure inhibited photopolymer resin layer and into the adjacent photopolymer creating a cure inhibited photopolymer resin layer. Another system and method are also disclosed.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: August 24, 2021
    Assignee: B9CREATIONS, LLC
    Inventor: Michael Joyce
  • Patent number: 11097531
    Abstract: The present disclosure is directed to additive manufacturing cartridges having an oxygen impermeable layer and to processes for producing cured polymeric products by additive manufacturing wherein the oxygen content during additive manufacturing is limited such as by use of the cartridge and/or by use of an inert gas.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: August 24, 2021
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Joshua P. Abell, Michael R. Beaulieu, Douglas B. Costlow, Andrew V. Haidet
  • Patent number: 11084216
    Abstract: A method of separating excess resin (15) from at least one object (11), includes: (a) stereolithographically producing at least one object (11) on at least one carrier platform (10), each carrier platform (10) having a planar build surface to which at least one object (11) is connected, each object (11) carrying excess resin (15) on a surface thereof; then (b) mounting each carrier platform (10) to a rotor (31); (c) centrifugally separating excess resin (15) from each object (11) by spinning the rotor (31) with each carrier platform (10) connected thereto while each object (11) remains connected to each carrier platform (10); and then (d) removing each carrier platform (10) from the rotor (31) with each object (11) thereon, with excess resin (15) separated therefrom.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 10, 2021
    Assignee: Carbon, Inc.
    Inventors: Michael Murillo, Gregory W. Dachs, II
  • Patent number: 11078374
    Abstract: Provided is an active-energy-ray-curable liquid composition containing a monomer (A) having a hydrogen-bonding capacity and a solvent (B) having a hydrogen-bonding capacity, wherein the active-energy-ray-curable liquid composition satisfies conditions below, <Conditions> a cured product obtained by irradiating the active-energy-ray-curable liquid composition with 500 mJ/cm2 of an active energy ray is a solid having a compressive stress of 2.0 kPa or greater when compressed by 1% at 25 degrees C., and the cured product has a water decaying property.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 3, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroyuki Naito, Hiroshi Iwata, Yoshihiro Norikane, Yoshihito Shimada, Kenji Sugiura
  • Patent number: 11077611
    Abstract: The invention relates to a method and device for producing 3D moulded parts by means of a layer construction technique wherein a recoater is used which can coat in both directions of movement.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 3, 2021
    Assignee: VOXELJET AG
    Inventors: Ingo Ederer, Bastian Heymel
  • Patent number: 11077608
    Abstract: A method of making a three-dimensional object from a light polymerizable resin, includes the steps of: (a) producing an object adhered to a carrier plate by light polymerization of the resin in a bottom-up stereolithography process (e.g., continuous liquid interface production); (i) the object including a carrier plate adhesion portion, a main body portion, and a circumferential boundary portion included in the carrier plate adhesion portion and optionally extending into at least part of the main body portion; (ii) the stereolithography process including overexposing the boundary portion (as compared to the exposure of the adhesion portion or main body portion) with light; (b) optionally cleaning the object; and then (c) optionally baking the object to produce a further cured three-dimensional object.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: August 3, 2021
    Assignee: Carbon, Inc.
    Inventors: Bob E. Feller, Kyle Laaker
  • Patent number: 11072025
    Abstract: A method of controlling an additive manufacturing process in which one or more energy beams are used to selectively fuse a powder to form a workpiece, in the presence of one or more plumes generated by interaction of the one or more energy beams with the powder. The method includes controlling at least one of: a trajectory of the one or more plumes, and the one or more energy beams, so as to prevent the one or more energy beams from intersecting the one or more plumes.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 27, 2021
    Assignee: General Electric Company
    Inventors: Andrew J. Martin, Mackenzie Ryan Redding, Justin Mamrak
  • Patent number: 11066335
    Abstract: The present disclosure relates to a method of fabricating a ceramic composite components. The method may include providing at least a first layer of reinforcing fiber material which may be a pre-impregnated fiber. An additively manufactured component may be provided on or near the first layer. A second layer of reinforcing fiber, which may be a pre-impregnated fiber may be formed on top the additively manufactured component. A precursor is densified to consolidates at least the first and second layer into a densified composite, wherein the additively manufactured material defines at least one cooling passage in the densified composite component.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: July 20, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Tao Li, Timothy P. Coons, Xi Yang, Michael James Weimer
  • Patent number: 11065818
    Abstract: Apparatus for producing a three-dimensional model by sequentially forming layers of photopolymer material one on top of the other responsive to data defining the three-dimensional model is disclosed. The apparatus includes at least one printing head configured to dispense the photopolymer material, an array of LEDs controllable to provide radiation to polymerize the photopolymer material and a controller. The controller is configured to control the at least one printing head to dispense the photopolymer material to sequentially form the layers of material. The controller is also configured to turn on the array of LEDs to provide the radiation to cure the photopolymer material when situated above the model and to turn off the array of LEDs when not situated above the model.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: July 20, 2021
    Assignee: Stratasys Ltd.
    Inventors: Moshe Levi, Hanan Gothait, Eliahu M. Kritchman, Igal Zeitun
  • Patent number: 11065814
    Abstract: The present application provides not only a heating device for additive manufacturing but also a heating module and a manufacturing apparatus utilizing the heating device. The heating device utilizes a rotational reflective cover to modulate a heating direction of a heating source, which expands an area correspondingly irradiated by the heating source and enhances uniformity of heating. Besides, the heating modules can be coupled and controlled by a controlling subsystem so as to respectively irradiate different areas with ranges at least partially intersecting each other, which also improves heating uniformity for heating a large area.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 20, 2021
    Assignee: National Chung-Shan Institute of Science and Technology
    Inventors: Chung-Chun Huang, Chih-Peng Chen, Po-Shen Lin
  • Patent number: 11059223
    Abstract: According to some aspects, a method is provided of forming a metallic object via additive fabrication, the method comprising obtaining a geometric description of a first object with an exterior surface, generating a geometric description of a second object, the second object bounded by the exterior surface of the first object and having one or more voids, fabricating said second object via additive fabrication based on said geometric description of the second object, and depositing a metallic material onto said second object, wherein the metallic material is deposited into said voids of second object.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 13, 2021
    Assignee: Formlabs, Inc.
    Inventors: Marcin Slaczka, Zachary Zguris, Matthew Keeter
  • Patent number: 11052598
    Abstract: A method is provided for treating a surface of a molded part, produced in a 3D printing method, with a surface treatment means, wherein holding means are arranged on the molded part which enable a treatment of the surface in a treatment chamber, without the surface making contact with the walls of the treatment chamber. A corresponding method for producing a molded part in a 3D printing method is also provided, as well as the corresponding dataset for controlling a 3D printer, and a computer program product which determines a number of holding means on the basis of the geometry data of the molded part.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: July 6, 2021
    Assignee: DYEMANSION GMBH
    Inventors: Markus Neininger, Felix Ewald, Philipp Kramer
  • Patent number: 11052609
    Abstract: A molding system to manufacture a three-dimensional object corresponding to a three-dimensional model. The molding apparatus includes a slice data generation unit to generate slice data from three-dimensional shape data of the three-dimensional model, and a lamination unit to laminate a layer of a molding material on the basis of the slice data. The slice data generation unit analyzes data, and, if a region in which a layer of a second molding material different from a first molding material is to be laminated on a layer of the first molding material and in which it is difficult to laminate the layers is extracted, modifies the data of a region of at least one of an ith layer and an (i+1)th layer to data in which a portion in which the first molding material is disposed and a portion in which the second molding material is disposed.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 6, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Usami, Tatsuya Tada, Kenji Karashima, Genya Anan, Takashi Kase, Satoru Yamanaka, Yuji Wakabayashi
  • Patent number: 11045993
    Abstract: The present invention relates to a mold bottom extending about a central axis and comprising a molding wall made as a single piece and defining a molding surface; a cavity formed inside the molding wall, and having a central area, a peripheral area, and a middle area; a central pipe supplying the cavity with heat-transfer fluid, that opens in the central area via one or more central openings; and at least one pipe for discharging the heat-transfer fluid from the cavity, into which the peripheral area opens. According to the invention, the mold bottom comprises a bypass that brings the central pipe into direct communication with the middle area of the cavity by bypassing the central area.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 29, 2021
    Assignee: SIDEL PARTICIPATIONS
    Inventor: Maxime Sandrini
  • Patent number: 11034080
    Abstract: A photocuring-type three-dimensional printing method and device. The photocuring-type three-dimensional printing method comprises the following steps: obtaining a three-dimensional data model of a printing object; dividing the three-dimensional data model into a plurality of layers; identifying exposed areas and internal areas of various layers for at least a portion of the layers of the three-dimensional data model; performing exposure at each layer for the exposed areas of the various layers, and performing an exposure process at an interval of multiple layers for the internal areas of the various layers.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 15, 2021
    Assignee: PRISMLAB CHINA LTD.
    Inventor: Feng Hou
  • Patent number: 11037785
    Abstract: The method for fabricating pattern of a cured product includes a first step (arranging step) of arranging a layer formed of a liquid film of a curable composition (?1) containing at least a component (A1) serving as a polymerizable compound on a substrate and a second step (dispensing step) of dispensing liquid droplets of a curable composition (?2) containing at least a component (A2) serving as a polymerizable compound discretely onto a layer formed of a composition (?1?) of components of the curable composition (?1) except a component (D1) serving as a solvent, in which: the mixing of the composition (?1?) and the curable composition (?2) is exothermic.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: June 15, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Jun Kato, Toshiki Ito
  • Patent number: 11034142
    Abstract: Systems and methods for additive fabrication include directed thermal sensors, directed heating elements, and directed cooling elements. These elements detect, control, and modulate the temperature of freshly laid and adjacent roads during the fabrication of an object by the system. Such control, detection, and modulation improves road fusion and enables the fabrication of unsupported overhangs that are otherwise unattainable.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 15, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: John Tierney, Thomas King
  • Patent number: 11028205
    Abstract: Curable formulations which form cured materials that are breakable upon immersion in water are disclosed. The cured materials break into a plurality of particles being a few millimeters or less in size. Methods of fabricating three-dimensional objects utilizing the curable formulations are also disclosed, as well as model objects fabricated thereby. The curable formulations include at least a mono-functional curable material and a multi-functional curable material, as described in the specification.
    Type: Grant
    Filed: January 15, 2017
    Date of Patent: June 8, 2021
    Assignee: Stratasys Ltd.
    Inventors: Tal Ely, Mariana Pokrass, Dani Peri, Avraham Levy, Dana Tenne
  • Patent number: 11020954
    Abstract: A method of additive manufacturing comprises determining a first resonant frequency of an unflawed reference workpiece at a first partial stage of completion, fabricating a production workpiece to the first partial stage of completion via additive manufacture, sensing a second resonant frequency of the production workpiece in-situ at the first partial stage of completion, during the fabrication, analyzing the workpiece for flaws based on comparison of the first and second resonant frequencies, and providing an output indicative of production workpiece condition, based on the analysis. An additive manufacturing system comprises an additive manufacturing tool, a sensor, and a controller. The additive manufacturing tool is disposed to construct a workpiece via iterative layer deposition. The sensor is disposed to determine a resonant frequency of the workpiece in-situ at the additive manufacturing tool, during fabrication.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: June 1, 2021
    Assignee: Raytheon Technologies Corporation
    Inventor: JinQuan Xu
  • Patent number: 11020797
    Abstract: A system is disclosed for printing a component. The system may have a nozzle controlled for movement within a plane. The nozzle may be configured to dispense a molten metal. A substrate may be positioned within a reservoir. The substrate may receive the molten metal to form the component in a printing operation. A heated barrier material in a molten state may be contained within the reservoir for forming a liquid barrier between an atmosphere and the substrate. The nozzle has a tip which is submerged within the liquid barrier while dispensing the molten metal during the printing operation. The liquid barrier forms a barrier between an atmosphere in a vicinity of the substrate and the substrate.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Andrew J. Pascall, Joshua David Kuntz, Scott K. McCall
  • Patent number: 11020897
    Abstract: An additive manufacturing apparatus having a container for holding a radiation-curable liquid, and a build platform having a build surface for holding a product being manufactured during a manufacturing process. The build platform is movable relative to the container in a predetermined direction. The apparatus also includes a radiation source for providing hardening radiation to selectively solidify radiation-curable liquid in the container by exposure to form the product. The container includes an interior floor having a flexible floor part maintainable in a planar configuration in which the flexible floor part is planar. A radiation-curable liquid in contact with the interior floor is confined by a container wall having a flexible wall section arranged to move intactly with the flexible floor part.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 1, 2021
    Assignee: AddiFab ApS
    Inventors: Lasse Guldborg Staal, Jon Jessen
  • Patent number: 11021622
    Abstract: Disclosed is an ink composition for a 3D printing supporter and a 3D printing production method using the same, in which the ink composition is usable for an inkjet 3D printer, has excellent jetting properties and is easily dissolved in water after curing so that a supporter can be easily removed. The ink composition for a 3D printing supporter comprises: an amine-containing monomer, a curing agent, and a water-soluble polymer having an amine-containing polymer.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: June 1, 2021
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Seung-A Back, Sung-Eun Park
  • Patent number: 11014159
    Abstract: A composite machining machine includes a first machining head, a second machining head, a workpiece holder, a cover, and a frame. The first machining head is movable in a first region to perform additive manufacturing on the workpiece in a second region. The second machining head is movable in the second region to perform cutting on the workpiece. The workpiece holder holds the workpiece in the second region. The cover covers the first region. The frame includes two columns and a beam member coupling the columns. The cover includes a region definition member openable at least partially. The region definition member defines the second region. The first machining head is movable in a guided manner in a range between the columns. The beam member is disposed so that the predetermined range lies inside the first region, and outside and above the second region.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 25, 2021
    Assignee: YAMAZAKI MAZAK CORPORATION
    Inventors: Kazuya Horibe, Kazuki Uemura, Seiichi Yoshida