Patents Examined by Nahida Sultana
  • Patent number: 11604410
    Abstract: An object can be made one section at a time, that is layerwise, using an apparatus for making an object using a stereolithographic method. Disclosure generally relates to an apparatus for making a stereolithographic object and a method for making a stereolithographic object. An apparatus (100) for making an object (122) is disclosed.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 14, 2023
    Inventors: Justin Elsey, Rafael Bayguzin
  • Patent number: 11597786
    Abstract: The present invention relates to a model material composition for shaping a model material by a material jetting optical shaping method, comprising a polymerizable compound, a photopolymerization initiator and a siloxane compound having one polymerizable group per molecule, the siloxane compound having a number average molecular weight of 300 to 10,000.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 7, 2023
    Assignee: MAXELL, LTD.
    Inventors: Tomohisa Nishimoto, Satoshi Kubo
  • Patent number: 11597139
    Abstract: A solid freeform fabrication object includes a plurality of parts formed of hydrogels having respective physical properties, wherein the hydrogels having respective physical properties, each having a moisture content of 70 percent by mass or greater, wherein a solvent concentration difference between the hydrogel constituting adjacent parts of the plurality of parts is 5 percent by mass or less.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 7, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tatsuya Niimi, Takashi Matsumura, Takuya Saito
  • Patent number: 11597150
    Abstract: A three-dimensional printing system and equipment assembly for the manufacture of three-dimensionally printed articles is provided. The equipment assembly includes a three-dimensional printing build system, an optional liquid removal system and an optional harvester system. The build system includes a conveyor, plural build modules and at least one build station having a powder-layering system and a printing system. The equipment assembly can be used to manufacture pharmaceutical, medical, and non-pharmaceutical/non-medical objects. It can be used to prepare single or multiple articles.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: March 7, 2023
    Inventors: Jaedeok Yoo, Thomas J. Bradbury, Thomas J. Bebb, James Iskra, Henry L. Surprenant, Thomas G. West
  • Patent number: 11591486
    Abstract: An example of a three-dimensional (3D) printing kit includes a build material composition and a fusing agent to be applied to at least a portion of the build material composition during 3D printing. The build material composition includes a polyamide having a melt enthalpy ranging from greater than 5 J/g to less than 150 J/g. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the polyamide in the at least the portion. The fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm; or the fusing agent is a primer fusing agent and the energy absorber is a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 28, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Erica Fung, Carolin Fleischmann, Jesiska Tandy, Carmina Querol Esparch, Greg S. Long, Ali Emamjomeh, Shannon Reuben Woodruff, Rachael Donovan, Kenneth Flack
  • Patent number: 11590706
    Abstract: Methods for post-processing photofabricated articles created via additive fabrication processes are described and claimed herein. Such methods include providing a photofabricated article, preferably an article that has been at least partially cured via cationic polymerization mechanisms, optionally, post-processing the photofabricated article, and base-washing the photofabricated article in an alkaline solution or dispersion to create a neutralized photofabricated article. In another embodiment, the methods include treating a photofabricated article having a residual acid or base species with a treatment composition in order to create a neutralized photofabricated article. Also described and claimed are the neutralized photofabricated articles created via the methods herein elsewhere described. Such articles are preferably biocompatible, especially as determined by their lack of cytotoxicity potential.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 28, 2023
    Assignee: Covestro (Netherlands) B.V.
    Inventors: Aylvin Jorge Angelo Athanasius Dias, Franciscus Johannes Marie Derks
  • Patent number: 11577458
    Abstract: An additive layer manufacturing method, preferably using selective laser sintering, for manufacturing a solid article, the method including applying a layer of a powder, the powder including at least one powdered (co)polymer, onto a solid substrate in a processing chamber; fusing the powder layer onto the solid substrate; subsequently depositing successive layers of the powder, wherein each successive layer is selectively fused prior to deposition of the subsequent layer of powder so as to form the article. In some embodiments, the powder further includes abrasive particles having a hardness greater than or equal to that of aluminum oxide.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: February 14, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Jean-Luc Rifaut, Jens Eichler, Tilo Remhof, Brian D. Goers, Brian A. Shukla, Alexander J. Kugel, Maiken Givot, Michael C. Harper
  • Patent number: 11577461
    Abstract: An additive manufacturing (AM) system includes a housing defining a chamber and a build platform disposed in a lower portion of the chamber. The AM system includes an upper gas inlet disposed in a side-wall and in an upper portion of the chamber and configured to supply an upper gas flow parallel to the build platform. The AM system includes a lower gas inlet in the lower portion of the chamber, wherein the lower gas inlet includes one or more pairs of dividing walls extending from the side-wall toward the build platform and configured to guide the lower gas flow at one or more flow angles with respect to the build platform. The AM system includes at least one gas delivery mechanisms to regulate flow characteristics of the upper and lower gas flows, and includes a gas outlet to discharge the upper and lower gas flows from the chamber.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: February 14, 2023
    Assignee: General Electric Company
    Inventors: Christian Wakelam, Rene du Cauze de Nazelle, Christian Aalburg, Florian Hoefler, Jonathan Ong
  • Patent number: 11578204
    Abstract: Porous and microporous parts prepared by additive manufacturing as disclosed herein are useful in medical and non-medical applications. The parts are prepared from a composition containing both a solvent soluble component and a solvent insoluble component. After a part is printed by an additive manufacturing process it is exposed to solvent to extract solvent soluble component away from the printed part, resulting in a part having surface cavities.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: February 14, 2023
    Assignee: POLY-MED, INC.
    Inventors: Michael Scott Taylor, James Hyde, Brian Gaerke, Brad Johns, Michael Aaron Vaughn, Seth Dylan McCullen, David Gravett
  • Patent number: 11571838
    Abstract: A vehicle component that includes at least one fiber preform. The fiber preform includes a substrate, a fiber bundle having one or more types of reinforcing fibers, and a thread. The fiber bundle is arranged on the substrate and attached to the substrate by a plurality of stitches of the thread to form a first preform layer having a principal orientation. The vehicle component includes a core having a geometry with at least one edge and at least one the fiber preforms positioned along the at least one edge, the core and the fiber preform being overmolded in a resin. A process of making the vehicle component includes providing the core having the at least one edge, positioning the at least one fiber preform along the at least one edge, and overmolding the core and the at least one fiber preform in the resin.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: February 7, 2023
    Assignee: Coats Group PLC
    Inventor: Probir Kumar Guha
  • Patent number: 11565463
    Abstract: A method for forming a heater on a substrate includes feeding a heater wire into a heating zone, the heater wire being in contact with a dielectric material within the heating zone, and coaxially co-extruding the heater wire and the dielectric material from the heating zone through a nozzle and onto a substrate such that the heater wire and the dielectric material form a heater for heating the substrate.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 31, 2023
    Assignee: Rosemount Aerospace Inc.
    Inventors: Scott Wigen, Greg Allen Seidel
  • Patent number: 11565026
    Abstract: Provided herein are methods, compositions, devices, and systems for the 3D printing of biomedical implants. In particular, methods and systems are provided for 3D printing of biomedical devices (e.g., endovascular stents) using photo-curable biomaterial inks (e.g., or methacrylated poly(diol citrate)).
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: January 31, 2023
    Assignee: Northwestern University
    Inventors: Jian Yang, Evan C. Baker, Henry O. T. Ware, Fan Zhou, Cheng Sun, Guillermo A. Ameer, Robert Van Lith
  • Patent number: 11559924
    Abstract: Systems and methods for constructing concrete foundations are provided which allow for rapid and high-precision placement and alignment of anchor bolts across large distances. A frame system is constructed outside of an excavation and then suspended, using supports, over an excavation. The frame system can include a frame having one or more templates for anchor bolts, a form suspended from the frame, and a mat and cage assembly tied to the frame. The frame system can be aligned in proper position and the anchor bolts placed in the frame system before the concrete is placed. In this way, the anchor bolts can be cast in place as the footing is placed.
    Type: Grant
    Filed: November 15, 2020
    Date of Patent: January 24, 2023
    Assignee: Goss Construction, Inc.
    Inventor: Richard A. Goss
  • Patent number: 11563256
    Abstract: A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: January 24, 2023
    Assignee: Celgard, LLC
    Inventors: Eric H. Miller, Joseph G. Yaritz, Mark T. Demeuse, J. Kevin Whear
  • Patent number: 11554550
    Abstract: An example method for forming a strengthened additive manufacturing material includes coating a surface of an additive manufacturing material with a solution including reinforcement particles, and causing a solvent of the solution to evaporate and the reinforcement particles adhere to the surface of the additive manufacturing material. An example strengthened filament includes a polymer filament having a surface, and reinforcement particles included on the surface of the polymer filament in a substantially uniform coating.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: January 17, 2023
    Assignee: The Boeing Company
    Inventor: Nishant K. Sinha
  • Patent number: 11548101
    Abstract: A method of additive manufacture suitable for large and high resolution structures is disclosed. The method may include sequentially advancing each portion of a continuous part in the longitudinal direction from a first zone to a second zone. In the first zone, selected granules of a granular material may be amalgamated. In the second zone, unamalgamated granules of the granular material may be removed. The method may further include advancing a first portion of the continuous part from the second zone to a third zone while (1) a last portion of the continuous part is formed within the first zone and (2) the first portion is maintained in the same position in the lateral and transverse directions that the first portion occupied within the first zone and the second zone.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: January 10, 2023
    Assignee: Seurat Technologies, Inc.
    Inventors: James A DeMuth, Erik Toomre, Francis L. Leard, Kourosh Kamshad, Heiner Fees, Eugene Berdichevsky
  • Patent number: 11548196
    Abstract: An injection apparatus of the invention injects a molding material supplied from a material supply port, and includes a die, a material supply apparatus that extrudes the molding material that is thread-like or strip-like via the die, and a material guide apparatus that guides the molding material supplied via the die to the material supply port. The material discharge port of the material supply apparatus and the die protrude downward in the material supply apparatus, and a pressure inside the material guide apparatus is reduced by a pressure reducing apparatus from a pressure reducing port provided above the material discharge port of the material supply apparatus and the die.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: January 10, 2023
    Assignee: SODICK CO., LTD.
    Inventor: Koichi Yokoyama
  • Patent number: 11534341
    Abstract: A method for preparing a pair of personalized three-dimensional (3D) printing medical isolation goggles includes the steps of S1: establishing a medical isolation goggles matrix; S2: acquiring the facial data of a user; S3: establishing a personalized medical isolation goggles model; S4: performing additive manufacturing, wherein a pair of medical isolation goggles is provided with high personalized fitness and high breathability for patients with eye diseases such as conjunctivitis, virus-susceptible patients, front-line clinical medical workers and related workers, and the compression damage to the face caused by the wearing of the medical isolation goggles for a long time is reduced in terms of fitness and comfort, where the medical isolation goggles are manufactured in a mode of additive manufacturing, small-batch rapid production can be performed after data merging, and a large number of processes and costs are reduced in the production cycle.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 27, 2022
    Inventors: Nan Li, Zirong Zhou, Shenggui Chen, Binghua Wen
  • Patent number: 11535690
    Abstract: The present disclosure provides a light curing non-transparent material for 3D printing and a preparation method thereof, a 3D printed product and a 3D printer. The light curing non-transparent material for 3D printing provided by the present disclosure can be used to print non-transparent 3D printed products without adding white pigments such as white pigments powder, and therefore has the characteristic of high stability, and also ensures fluency of the 3D printing process, good quality of the 3D printed products, as well as good performances of the 3D printer that containing light curing non-transparent material for 3D printing.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: December 27, 2022
    Inventor: Likun Wang
  • Patent number: 11534833
    Abstract: A laser-assisted microfluidics manufacturing process has been developed for the fabrication of additively manufactured structures. Roll-to-roll manufacturing is enhanced by the use of a laser-assisted electrospray printhead positioned above the flexible substrate. The laser electrospray printhead sprays microdroplets containing nanoparticles onto the substrate to form both thin-film and structural layers. As the substrate moves, the nanoparticles are sintered using a laser beam directed by the laser electrospray printhead onto the substrate.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: December 27, 2022
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Aravinda Kar, Ranganathan Kumar, Eduardo Castillo Orozco