Stereolithographic Shaping From Liquid Precursor Patents (Class 264/401)
  • Patent number: 10807309
    Abstract: A three dimensional printing system includes a vertical support, a support plate, a resin vessel, and an interface mechanism. The support plate extends away from the vertical support along a first lateral axis from a proximal end to a distal end. The resin vessel is disposed above the support plate and includes a pair of latch features disposed at opposing ends of the resin vessel relative to a second lateral axis. The interface mechanism includes a pair of latches and a movable plate. The pair of latches are disposed adjacently to the opposed ends of the resin vessel. The movable plate is configured to engage the pair of latches with a single downward movement of the movable plate. In response to the engagement by the movable plate, the latches engage the latch features of the resin vessel.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 20, 2020
    Assignee: 3D Systems, Inc.
    Inventor: Michael W. Munro
  • Patent number: 10800934
    Abstract: The present invention relates to a suspension comprising 50-95% by weight of the total suspension (w/w) of at least one metallic material and/or ceramic material and/or polymeric material and/or solid carbon containing material; and at least 5% by weight of the total suspension of one or more fatty acids or derivatives thereof. In addition, the invention relates to uses of such suspension in 3D printing processes.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 13, 2020
    Assignee: Particle3D AdS
    Inventors: Morten Ostergaard Andersen, Martin Bonde Jensen, Casper Slots
  • Patent number: 10800084
    Abstract: The invention relates to a granule/liquid flow adjusting device for 3-D printer heads supplied with granules and/or liquids, said device being arranged in a 3-D printer head which is fed via a channel. The printer head comprises a chamber, and the chamber has a surface, said surface having at least one outlet bore. According to the invention, at least one conveyor is arranged within the chamber, said conveyor supplying the material, preferably plastic, to the at least one outlet bore. The conveyor is urged in the direction of the surface by force, and the distance between the conveyor and the surface is adjusted by the pressure of the material.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: October 13, 2020
    Assignee: STARFORT DES STUBENRUSS MORITZ
    Inventor: Moritz Stubenruss
  • Patent number: 10792857
    Abstract: The invention generally relates to microneedle devices, methods of making same, pharmaceutical compositions comprising same, and methods of treating a disease comprising administering same. Specifically, the disclosed microneedle devices comprise a plurality of biocompatible microneedles having one or more of: (i) a curved, discontinuous, undercut, and/or perforated sidewall; (ii) a sidewall comprising a breakable support; and (iii) a cross-section that is non-circular and non-polygonal. The microneedles may also be tiered. Alternatively, the microneedles may be tiered. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: March 12, 2016
    Date of Patent: October 6, 2020
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Joseph M. Desimone, Gregory R. Robbins, Ashley R. Johnson
  • Patent number: 10786936
    Abstract: A three-dimensional printing method for a three-dimensional printing system including a tank, a platform, an injection module, a warning module, a curing module, and a control module is provided. The control module is electrically connected to the curing module, the injection module, and the warning module. The method includes: analyzing a required amount of the liquid forming material corresponding to a three-dimensional object; obtaining a safe amount of the liquid forming material in the tank; and comparing the required amount and the safe amount, wherein the control module provides a response signal to the injection or warning module when the safe amount is less than the required amount. The injection module receives the response signal to inject the liquid forming material to the tank. The warning module receives the response signal to remind a user to provide the liquid forming material to the tank.
    Type: Grant
    Filed: January 14, 2018
    Date of Patent: September 29, 2020
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc.
    Inventors: Tsai-Yi Lin, Chien-Te Lee, Chen-Fu Huang, An-Hsiu Lee
  • Patent number: 10791245
    Abstract: A three-dimensional object printer is configured to generate a printed predetermined test pattern on a substrate in the printer with a plurality of ejectors in a printhead. An image sensor generates image data of the printed test pattern and a controller identifies a z-axis distance between the printhead and the substrate using a dispersion identified between cross-process direction distances separating printed marks in the test pattern.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 29, 2020
    Assignee: Xerox Corporation
    Inventors: Howard A. Mizes, David A. Mantell
  • Patent number: 10773510
    Abstract: A three dimensional printing system includes a light engine having a spatial light modulator for curing individual layers of a photocure resin to form a three dimensional article of manufacture. The light engine is configured to: (1) receive a slice image that defines an array of energy values for curing a layer, (2) process the slice image to define an image frame compatible with the spatial light modulator, (3) receive an on signal, (4) activate the first light source in response to the on signal; (5) repeatedly send the first defined image frame to the first spatial light modulator during a defined cure time for the single layer of resin; (6) receive an off signal; (7) deactivate the first light source in response to the off signal; and (8) repeat steps (1)-(7) until the three dimensional article of manufacture is formed.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: September 15, 2020
    Assignee: 3D Systems, Inc.
    Inventors: Ben Wynne, Robert Mueller
  • Patent number: 10775770
    Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for creating toolpaths of support structures for 3D printing include, in one aspect, a method including: obtaining a perimeter of a first slice of a 3D model; identifying at least one portion of the perimeter of the first slice that extends a distance beyond a boundary of the 3D model for a second slice below the first slice, the distance being greater than a threshold amount defining an unsupported overhang; creating a support path that follows a shape of the at least one portion of the perimeter, the support path having a lateral offset from the at least one portion of the perimeter, the lateral offset being a fraction of the 3D print bead width, and the fraction being a positive number less than one; and adding the support path to toolpaths for the second slice.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: September 15, 2020
    Assignee: Autodesk, Inc.
    Inventors: Joseph Isaac Sadusk, Gregory Daniel Friedland
  • Patent number: 10766070
    Abstract: A system and method for modifying features in designs of objects to make them physically capable of being manufactured using additive manufacturing techniques and machines is provided, carrying out the following steps: Determine if one or more surfaces of the object have a surface angle below a threshold angle; designate one or more edges including a first edge, the first edge being between a first surface of the one or more surfaces and a second surface of the one or more surfaces, wherein the first surface has a surface angle below the threshold angle and the second surface has a surface angle equal to or above the threshold angle; and generate one or more additional surfaces along the one or more edges in the design file.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 8, 2020
    Assignee: Materialise N.V.
    Inventors: Manuel Michiels, Gert Claes
  • Patent number: 10766194
    Abstract: The present invention concerns a reservoir assembly for use in three-dimensional (3D) printing for building a 3D object, which includes a top frame that may be filled with liquid material, and a tensioned film being held underneath the top frame. The tensioned film may be air permeable and elastic at the same time, wherein surfaces of the tensioned film are micro textured so that the tensioned film becomes optically clear when it contacts with the liquid material. The tensioned film minimizes the creation of bubbles between the top and bottom surfaces. This also helps blurring the boundaries thereby enhancing the surface finish of the fabricated parts.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 8, 2020
    Assignee: SprintRay Inc.
    Inventors: Amir Mansouri, Huijian Tian, Jing Zhang, Abdol Hossein Bassir
  • Patent number: 10759162
    Abstract: A printing head module for a 3-D printing apparatus includes a 3-D print head, an ink-jet print head and a baking module. The 3-D print head includes a melting module and a base-material nozzle to print a plurality of staking layers. The ink-jet print head is connected to the 3-D print head and includes an ink nozzle to dispense ink on each stacking layer. The baking module is disposed between the 3-D print head and the ink-jet print head and includes a fan, a discharge casing and a heating module. The fan includes an air-discharge side facing the base to provide an air flow. The discharge casing is disposed on the air-discharge side. The heating module is disposed between the fan and the discharge casing to heat the air flow and the heated air flow being blown out via the discharge casing for drying the ink layer.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: September 1, 2020
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc.
    Inventors: Chia-Hung Huang, Ming-En Ho, Chun-Hsiang Huang, Jia-Yi Juang, Yang-Teh Lee
  • Patent number: 10759113
    Abstract: A head is disclosed for an additive manufacturing system. The head may include a nozzle configured to discharge a matrix, and at least one cure enhancer configured to enhance curing of the matrix. The head may also include a curving manipulator configured to trail behind the nozzle and provide mounting for the at least one cure enhancer.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: September 1, 2020
    Assignee: Continuous Composites Inc.
    Inventors: Kenneth Lyle Tyler, Ryan C. Stockett
  • Patent number: 10758979
    Abstract: We disclose herein a recoating device for an additive manufacturing process, the device comprising: a recoating member for guiding a volume of material to a target area and a support structure on which the recoating member is mounted. The recoating device is configured such that the recoating member moves in a first direction along a longitude of the target area and the recoating member moves in a second direction different to the first direction.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: September 1, 2020
    Assignee: XACT METAL, INC.
    Inventor: Jonathon Lee Hollahan
  • Patent number: 10753781
    Abstract: A three-dimensional printing device including a body, a tank, an origin target, a sensor, and a control module is provided. The tank is rotatably assembled on the body, and the tank is filled with a liquid forming material. The origin target is disposed on the tank and rotates along with the tank. The sensor is disposed on the body and located above the liquid forming material to sense a liquid level of the liquid forming material. The control module electrically connects the tank and the sensor and drives the tank to rotate. The sensor is located above a rotation path of the origin target, and the control module senses the origin target through the sensor and positions a rotation origin of the tank.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: August 25, 2020
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc.
    Inventors: Chen-Fu Huang, An-Hsiu Lee, Ching-Yuan Chou, Tsai-Yi Lin
  • Patent number: 10755488
    Abstract: The described implementations relate to systems, methods, and apparatuses for providing segmented models of objects that have been rendered in three-dimensional space. Furthermore, the segmented models can be automatically assigned connectors for allowing the models to be assembled and disassembled. The models can be generated based on object data generated from scans of an object, such as an anatomical body. A selected area of interest can be selected from the object data, and the object data can be cropped in order to provide a more concise volume from which to generate a model, such as at a 3D printer. The structure characterized by the object data can be processed to determine suitable locations for connectors that can allow the model to be disassembled while also providing an unobstructed view of the selected area of interest.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 25, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Gereon Vogtmeier, Eike Gerhard Gegenmantel, Molly Lara Flexman
  • Patent number: 10754244
    Abstract: A pattern is formed on a substrate with forming a layer of a curable composition (A1) containing a component (a1) serving as a polymerizable compound on a surface of the substrate, then dispensing droplets of a curable composition (A2) containing a component (a2) serving as a polymerizable compound (a2) and a component (b2) serving as a photopolymerization initiator dropwise discretely onto the layer of the curable composition (A1), subsequently sandwiching a mixture layer of the curable composition (A1) and the curable composition (A2) between a mold and the substrate, then irradiating the mixture layer with light to cure the mixture layer, and then releasing the mold from the mixture layer after the curing.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 25, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Weijun Liu, Timothy Brian Stachowiak, Niyaz Khusnatdinov, Tomonori Otani, Masayuki Tanabe
  • Patent number: 10754245
    Abstract: A pattern is formed on a substrate with forming a layer of a curable composition (A1) containing a component (a1) serving as a polymerizable compound and a component (d1) serving as a solvent on a surface of the substrate, then dispensing droplets of a curable composition (A2) containing at least a component (a2) serving as a polymerizable compound dropwise discretely onto the layer of the curable composition, subsequently sandwiching a mixture layer of the curable composition (A1) and the curable composition (A2) between a mold and the substrate, then irradiating the mixture layer with light to cure the layer, and releasing the mold from the mixture layer after the curing.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 25, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Tomonori Otani, Keiko Chiba, Weijun Liu, Timothy Brian Stachowiak
  • Patent number: 10744712
    Abstract: According to some aspects, an additive fabrication device is provided comprising a container removably attached to the additive fabrication device, and a detector configured to sense a fluid level of photopolymer resin within the container, wherein said detector does not contact said container.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: August 18, 2020
    Assignee: Formlabs, Inc.
    Inventors: Dmitri Megretski, Manuel Odendahl, Eric M. Van Albert, Hugh L. Medal
  • Patent number: 10746301
    Abstract: A method for manufacturing a seal is disclosed. The method includes depositing one or more layers of a first material on a metal base plate of a second material to form a main seal body of the seal. The second material is different from the first material. The method further includes separating the seal from the metal base plate such that the seal includes the main seal body and an outer seal layer retained on the main seal body to form a seal face surface of the seal. The outer seal layer is formed of a portion of the metal base plate.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 18, 2020
    Assignee: Caterpillar Inc.
    Inventors: Thierry Marchione, Timothy A. Thorson, Dennis Michael Turczyn
  • Patent number: 10748311
    Abstract: The present disclosure is directed to a software tool that facilitates the presentation of a three-dimensional view of a construction project as well as the generation of various types of two-dimensional technical drawings based on this three-dimensional view. In one implementation, the software tool causes a computing device to engage in the following operations. The computing device may receive an indication of a desired clip height of a three-dimensional view at which to generate a two-dimensional technical drawing; identify a subset of meshes that intersect with a two-dimensional plane at the desired clip height; determine respective portions of each mesh that intersect the two-dimensional plane at the desired clip height; compile a dataset that defines the two-dimensional drawing; and render the two-dimensional drawing using the compiled dataset.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 18, 2020
    Assignee: Procore Technologies, Inc.
    Inventors: Winson Chu, Peter Wu, Christopher Myers
  • Patent number: 10737984
    Abstract: This invention provides resin formulations which may be used for 3D printing and pyrolyzing to produce a ceramic matrix composite. The resin formulations contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material. The invention provides direct, free-form 3D printing of a preceramic polymer loaded with a solid-phase filler, followed by converting the preceramic polymer to a 3D-printed ceramic matrix composite with potentially complex 3D shapes or in the form of large parts. Other variations provide active solid-phase functional additives as solid-phase fillers, to perform or enhance at least one chemical, physical, mechanical, or electrical function within the ceramic structure as it is being formed as well as in the final structure. Solid-phase functional additives actively improve the final ceramic structure through one or more changes actively induced by the additives during pyrolysis or other thermal treatment.
    Type: Grant
    Filed: November 26, 2017
    Date of Patent: August 11, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Tobias A. Schaedler, Zak C. Eckel, Scott Biesboer, Kenneth Cante
  • Patent number: 10737439
    Abstract: A stereolithography device having a trough (2) for accommodating free-flowing, photopolymerizable material, a construction platform (4) suspended above the trough bottom on a lifting unit (6), and having a heating unit for heating the photopolymerizable material in the trough. The heating unit has a transparent, electrically conductive layer (33), which covers the entire area of at least the exposure region above the trough bottom, and which is provided outside the exposure region on opposing sides of the layer with electrical contacts (20) extended over the opposing sides, which are connected to a controlled electrical supplier to enable heating of the entire area of photopolymerizable material above the trough bottom in the exposure region by current flow through the layer.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 11, 2020
    Assignees: Ivoclar Vivadent AG, Technische Universität Wien
    Inventors: Jörg Ebert, Robert Gmeiner
  • Patent number: 10733775
    Abstract: The present disclosure is directed to a software tool that facilitates the presentation of a three-dimensional view of a construction project as well as the generation of various types of two-dimensional technical drawings based on this three-dimensional view. In one implementation, the software tool causes a computing device to engage in the following operations. The computing device may receive an indication of a desired clip height of a three-dimensional view at which to generate a two-dimensional technical drawing; identify a subset of meshes that intersect with a two-dimensional plane at the desired clip height; determine respective portions of each mesh that intersect the two-dimensional plane at the desired clip height; compile a dataset that defines the two-dimensional drawing; and render the two-dimensional drawing using the compiled dataset.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 4, 2020
    Assignee: Procore Technologies, Inc.
    Inventors: Winson Chu, Peter Wu
  • Patent number: 10730109
    Abstract: A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.
    Type: Grant
    Filed: April 9, 2017
    Date of Patent: August 4, 2020
    Assignee: Stratasys Ltd.
    Inventors: Yehoshua Sheinman, Shai Hirsch, Almog Shahar, Uri Grach, Kirill Tanhilevich
  • Patent number: 10727382
    Abstract: A method of forming one or more three-dimensional objects for an optoelectronic lighting device including a carrier with an optoelectronic semiconductor component includes providing a carrier of an optoelectronic lighting device, wherein an optoelectronic semiconductor component is arranged on the carrier, and a construction region partly delimited by the carrier is defined, the optoelectronic semiconductor component facing the construction region, introducing a polymerizable liquid into the construction region, and exposing the construction region to form one or more solid polymers from the polymerizable liquid in a curing zone included by the construction region, and one or more three-dimensional objects from the one or more solid polymers in the curing zone, wherein an ineffective region is formed during the process of exposing the construction region, polymerization being inhibited in the ineffective region, and the curing zone is arranged between the carrier and the ineffective region.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: July 28, 2020
    Assignee: OSRAM OLED GmbH
    Inventor: Nikolaus Gmeinwieser
  • Patent number: 10722985
    Abstract: A method for assessing the structural quality of three-dimensional components which are produced by laser sintering or laser melting. The component is produced by the successive solidification of individual layers of a construction material solidified by the action of radiation, by sintering or fusing the construction material. The fusion region is captured by a sensor device and sensor values for evaluating the quality of the component are derived therefrom. The sensor values with the co-ordinate values which localize the sensor values in the component are stored with a division of the calculated sensor values into values which are critical to the structural quality of the component and non-critical values to said quality and with a representation of those values critical to the structural quality of the component as to their distance from a reference point lying or arranged in the region of the surface.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: July 28, 2020
    Assignee: Concept Laser GmbH
    Inventor: Frank Herzog
  • Patent number: 10726635
    Abstract: A three-dimensional shape data editing apparatus includes an editing unit that edits three-dimensional shape data so that a three-dimensional shape represented by using a voxel having a height of a lamination interval is similar to an original three-dimensional shape represented by the three-dimensional shape data in a case where the height of the voxel in a lamination direction of the three-dimensional shape data representing the three-dimensional shape by a set of plural voxels is different from the lamination interval of a three-dimensional modeling apparatus that models the three-dimensional shape.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 28, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Yuji Ohmori
  • Patent number: 10710299
    Abstract: A stereolithography 3D printing method for multiple light modules includes following steps of: controlling a stereolithography 3D printer to retrieve a plurality of slice images and offsets respectively corresponding to different layers of 3D object data; selecting one of the slice images corresponding to one of the layers; adjusting an irradiation range of each of light modules according to one of the offsets corresponding to the same layer; the adjusted irradiation ranges of the light modules don't overlap with each other in a horizontal axis direction; controlling each light module to irradiate according to the adjusted irradiation range and the selected slice image; and, repeatedly executing aforementioned steps to generate a physical 3D model. Therefore, effectively implementing large size stereolithography 3D printing and manufacturing the physical 3D model without any obvious borderline can be achieved.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: July 14, 2020
    Assignees: XYZPRINTING, INC., KINPO ELECTRONICS, INC.
    Inventor: Peng-Yang Chen
  • Patent number: 10710305
    Abstract: The present invention relates to methods and an apparatus for the fabrication of solid three-dimensional objects from liquid polymerizable materials.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: July 14, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Patent number: 10695834
    Abstract: According to one embodiment, a material feeder includes a feeding unit. The feeding unit includes a container that is containable of a powdery material and a first wall that is provided with a plurality of first openings communicated with the container and at least partially covers a region to which the material is fed, the feeding unit feeding the material in the container from the first openings to the region to form a layer of the material.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 30, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masayuki Tanaka, Hiroshi Ohno, Takahiro Terada, Kaori Deura
  • Patent number: 10688771
    Abstract: A three-dimensional printing approach based on stereolithography with variable printing resolutions to solve the trade-off between throughput and resolution. In this technology, the variable fabrication resolutions are achieved by switching light wavelength. The apparatus includes an optical filter based on high-contrast gratings. In one embodiment, the minimum printing resolution of the accordingly constructed stereolithography apparatus is reduced to 37 ?m.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: June 23, 2020
    Assignee: University of Southern California
    Inventors: Yong Chen, Yuanrui Li, Huachao Mao, Wei Wu
  • Patent number: 10688732
    Abstract: A three dimensional printing device includes a plane, a projector, a separation mechanism, and a driving mechanism. The plane is used to put a first photocured material and a second photocured material. The projector emits a light to cure the first photocured material and the second photocured material. The separation mechanism is disposed on the plane and used for separating the first photocured material and the second photocured material, and the driving mechanism drives the separation mechanism to change a location of the first photocured material on the plane.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 23, 2020
    Assignee: Young Optics Inc.
    Inventor: Tsung-Yu Liu
  • Patent number: 10685158
    Abstract: Disclosed herein is a computer-implemented method of image simulation for a device manufacturing process, the method comprising: identifying regions of uniform optical properties from a portion or an entirety of a substrate or a patterning device, wherein optical properties are uniform within each of the regions; obtaining an image for each of the regions, wherein the image is one that would be formed from the substrate if the entirety of the substrate or the patterning device has the same uniform optical properties as that region; forming a stitched image by stitching the image for each of the regions according to locations of the regions in the portion or the entirety of the substrate of the patterning device; forming an adjusted image by applying adjustment to the stitched image for at least partially correcting for or at least partially imitating an effect of finite sizes of the regions.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 16, 2020
    Assignee: ASML Netherlands B.V.
    Inventor: Peng Liu
  • Patent number: 10683381
    Abstract: The present disclosure is directed to actinic radiation curable polymeric mixtures, cured polymeric mixtures, tires and tire components made from the foregoing, and related processes.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 16, 2020
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Joshua P. Abell, Michael R. Beaulieu, Douglas B. Costlow, Andrew V. Haidet
  • Patent number: 10682811
    Abstract: According to some aspects, an additive fabrication device is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a container in addition to the build platform and/or a previously formed layer of material. The additive fabrication device may comprise a container and a wiper, wherein the wiper comprises a wiper arm and a wiper blade coupled to said wiper arm using a pivoting coupling.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 16, 2020
    Assignee: Formlabs, Inc.
    Inventors: Ian Ferguson, Konstantinos Oikonomopoulos, Steven Thomas, Benjamin FrantzDale, Nicholas M. Sohn, Maxim Lobovsky
  • Patent number: 10675856
    Abstract: According to some aspects, a method of additive fabrication is provided wherein a plurality of layers of material are formed on a build platform, the method comprising forming a layer of material in contact with a substrate and further in contact with either a previously formed layer of material or the build platform, the substrate being an actinically transparent, flexible, composite material, and subsequent to the forming of the layer of the material, actively separating the layer of material from the substrate.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: June 9, 2020
    Assignee: Formlabs, Inc.
    Inventor: Ben FrantzDale
  • Patent number: 10675809
    Abstract: A method and apparatus are disclosed. A method of printing onto a base includes providing a yarn from a material source disposed in a printing system. The yarn is an elongated continuous piece including a tagging segment and a reel segment. The reel segment is disposed proximate the material source. The tagging segment extends from a nozzle of the printing system. The method further includes attaching the tagging segment to the base and moving the nozzle away from the tagging segment after the attaching the tagging segment to the base. The nozzle is moved by an actuating system of the printing system. The moving the nozzle along the base increases a tension between the tagging segment and the material source. The tension in the yarn pulls the reel segment from the material source.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: June 9, 2020
    Assignee: NIKE, Inc.
    Inventors: Todd A. Waatti, Yoav Sterman
  • Patent number: 10654258
    Abstract: A three dimensional printing apparatus and a controlling method thereof are provided. A first forming material and a second forming material are adapted for being fed into a melting nozzle. A controller determines a first pulling-back amount according to a first feeding-in ratio of the first forming material and determines a second pulling-back amount according to a second feeding-in ratio of the second forming material. During a period in which a printing module stops extruding any material, the controller controls a feeding module to pull back the first forming material along a direction which is departing from a melting nozzle and controls the feeding module to pull back the second forming material along the direction which is departing from the melting nozzle.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: May 19, 2020
    Assignees: XYZprinting, Inc., Kinpo Electronics, Inc.
    Inventor: Hsin-Ta Hsieh
  • Patent number: 10656623
    Abstract: A system is configured to determine the calibration accuracy of an additive manufacturing machine for each of fourteen (14) geometric dimensioning and tolerancing parameters. The system also allows for the comparison of the calibration accuracy of multiple additive manufacturing machines.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: May 19, 2020
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Vincent John Capobianco, Jr.
  • Patent number: 10647056
    Abstract: A method of fabricating a three-dimensional object, the method comprising: combining at least one of a meth(acrylate), a (meth)acrylamide, a (meth)acrylonitrile, a styrene, an acrylonitrile, a vinyl acetate, a vinylcarbazole, a vinylpyridine, a vinyl ether, a vinyl chloride monomers, a polyfunctional monomer, and a polyfunctional prepolymer with an organic photoredox catalyst to provide a reaction mixture; depositing the reaction mixture; polymerizing the monomers by irradiating the reaction mixture with a light source; and repeating the depositing step until the three-dimensional object is formed.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: May 12, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Paul Clark, John W. Kramer, Aleksander J. Pyzik
  • Patent number: 10639877
    Abstract: This invention relates to rapid prototyping systems, specifically, a continuous moving surface liquid resin system (CMSL) and fast printing method for making any 3D objects, such as dental devices, including but not limited to artificial teeth, dentures, orthodontic appliances, aligners, splints, veneers, inlays, onlays, copings, frame patterns, crowns and bridges and the like. 3D printers, such as DLP or stereolithography printer, are used to cure polymerizable material in a layer-by-layer manner to build-up the object rapidly and continuously.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 5, 2020
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Benjamin Jiemin Sun, Jessica Jiaxin Sun
  • Patent number: 10639864
    Abstract: A method of joining polymer components includes additively manufacturing first and second mating features on first and second polymer components such that a mechanical lock is created through undercut geometric features of an adhesive material when the polymer components are joined. Adhesive is added between the mating components to strengthen the joint.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: May 5, 2020
    Assignee: United Technologies Corporation
    Inventors: Wendell V. Twelves, Jr., Evan Butcher
  • Patent number: 10632683
    Abstract: A method for thermal compensation during an additive manufacturing process. In some aspects, the method may include receiving, at a CNC machine, information relating to a material used in the additive manufacturing process, wherein the received information includes at least a Coefficient for Thermal Expansion (CTE) for the material. The method may further include modifying a distance of travel for a first pre-programmed tool path based on at least the Coefficient for Thermal Expansion (CTE).
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 28, 2020
    Assignee: Thermwood Corporation
    Inventor: Kenneth J. Susnjara
  • Patent number: 10620539
    Abstract: A nanoimprint lithography method includes disposing a pretreatment composition on a nanoimprint lithography substrate to form a pretreatment coating, and disposing discrete portions of imprint resist on the pretreatment coating, each discrete portion of the imprint resist covering a target area of the nanoimprint lithography substrate. The imprint resist is a polymerizable composition and includes a polymerization initiator. A composite polymerizable coating is formed on the nanoimprint lithography substrate as each discrete portion of the imprint resist spreads beyond its target area. The composite polymerizable coating is contacted with a nanoimprint lithography template. The polymerization initiator is activated, and the composite polymerizable coating is polymerized to yield a composite polymeric layer and an uncured portion of the pretreatment coating on the nanoimprint lithography substrate.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: April 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Timothy Brian Stachowiak, Weijun Liu
  • Patent number: 10618215
    Abstract: A method of forming a three-dimensional object, is carried out by (a) providing a carrier and a build plate, the build plate comprising a semipermeable member, the semipermeable member comprising a build surface with the build surface and the carrier defining a build region therebetween, and with the build surface in fluid communication by way of the semipermeable member with a source of polymerization inhibitor; (b) filling the build region with a polymerizable liquid, the polymerizable liquid contacting the build surface; (c) irradiating the build region through the build plate to produce a solid polymerized region in the build region, while forming or maintaining a liquid film release layer comprised of the polymerizable liquid formed between the solid polymerized region and the build surface, the polymerization of which liquid film is inhibited by the polymerization inhibitor; and (d) advancing the carrier with the polymerized region adhered thereto away from the build surface on the build plate to create
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 14, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Patent number: 10610341
    Abstract: The invention relates to a device and a method for the production of three-dimensional objects, in particular of at least parts of dental prosthetic restorations, by a stripping device wiping off plastic material, which protrudes vertically beyond a container, into a collecting container and forms a projection surface. According to the invention, a stripping device and a light source are coupled and simultaneously guided, at a defined distance, across the liquid light-curing plastic material, whereby the stripping device is guided at a defined distance right ahead of the light source and forms the projection surface for the illuminated field of the light source.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 7, 2020
    Assignee: HERAEUS KULZER GMBH
    Inventors: Christian Bauer, Yohannes Woldegergis, Uwe Brick
  • Patent number: 10596755
    Abstract: A method of forming a three-dimensional object, is carried out by (a) providing a carrier and a build plate, the build plate comprising a semipermeable member, the semipermeable member comprising a build surface with the build surface and the carrier defining a build region therebetween, and with the build surface in fluid communication by way of the semipermeable member with a source of polymerization inhibitor; (b) filling the build region with a polymerizable liquid, the polymerizable liquid contacting the build surface, (c) irradiating the build region through the build plate to produce a solid polymerized region in the build region, while forming or maintaining a liquid film release layer comprised of the polymerizable liquid formed between the solid polymerized region and the build surface, wherein the polymerization of which liquid film is inhibited by the polymerization inhibitor; and (d) advancing the carrier with the polymerized region adhered thereto away from the build surface on the build plate t
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 24, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Patent number: 10596803
    Abstract: Additive manufacturing systems (AMS) are disclosed. The AMS may include a build plate positioned directly on a movable build platform, and a recoater device positioned above the build plate. The recoater device may include a blade. Additionally, the AMS may include a calibration system operably connected to the recoater device. The calibration system may include at least one measurement device coupled or positioned adjacent to the recoater device, and at least one computing device operably connected to the measurement device(s). The computing device(s) may be configured to calibrate the recoater device by adjusting a height of the blade of the recoater device relative to a reference surface of a component of the AMS in response to determining a pre-build distance between the blade of the recoater device and the reference surface differs from a desired distance. The pre-build distance may be determined using the measurement device(s).
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: March 24, 2020
    Assignee: General Electric Company
    Inventors: Donnell Eugene Crear, Mikhail Pavlov, Felix Martin Gerhard Roerig, Dean Andrew Snelling, Jr.
  • Patent number: 10596753
    Abstract: Methods are provided for printing a three-dimensional structural component onto a base. For example, a method of printing is provided, including receiving a set of predetermined thicknesses for the three-dimensional structural component. The set of predetermined thicknesses has a first thickness and a second thickness. The first thickness is greater than the second thickness. The method further includes instructing a printing device to print a single layer for the three-dimensional structural component using the set of predetermined thicknesses. The method further includes printing a first portion of the single layer onto the base so that the first portion has the first thickness. The method further includes printing a second portion of the single layer onto the base so that the second portion has the second thickness.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: March 24, 2020
    Assignee: NIKE, Inc.
    Inventor: Todd W. Miller
  • Patent number: 10589513
    Abstract: A three dimensional printing system includes a support plate, a resin vessel, and one or more mechanical features. The support plate includes a ridge surrounding a first central opening. The resin vessel includes a vessel body defining an inner edge surrounding a second central opening and a transparent sheet that closes the central opening to define a lower bound for a body of resin to be contained within the resin vessel. The one or more mechanical features are configured to align and secure the resin vessel relative to the support plate whereby the ridge engages a lower surface of the transparent sheet to tension the transparent sheet and the ridge is laterally recessed inwardly relative to the inner edge of the vessel body.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 17, 2020
    Assignee: 3D Systems, Inc.
    Inventor: Christopher Tanner