Patents by Inventor Alexander Ermoshkin

Alexander Ermoshkin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12151073
    Abstract: A method of forming a three-dimensional object is carried out by providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid; irradiating the build region through the optically transparent member to form a solid polymer from the polymerizable liquid and advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer, while also concurrently with the irradiating and/or advancing steps: (i) continuously maintaining a dead zone of polymerizable liquid in contact with the build surface, and (ii) continuously maintaining a gradient of polymerization zone between the dead zone and the solid polymer and in contact with each thereof. The gradient of polymerization zone comprises the polymerizable liquid in partially cured form (e.g.
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: November 26, 2024
    Assignee: CARBON, INC.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Patent number: 12134227
    Abstract: A method of forming a three-dimensional object includes: providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid, irradiating the build region with light through the optically transparent member to form a solid polymer from the polymerizable liquid, and advancing said carrier away from said build surface to form said three-dimensional object from said solid polymer. The irradiating step includes projecting focused light at the build region, and the advancing step is carried out at a rate that is dependent on an average light intensity of the focused light.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: November 5, 2024
    Assignee: CARBON, INC.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski, Jason P. Rolland
  • Publication number: 20240325699
    Abstract: A method of forming a three-dimensional object is carried out by providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid; irradiating the build region through the optically transparent member to form a solid polymer from the polymerizable liquid and advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer, while also concurrently with the irradiating and/or advancing steps: (i) continuously maintaining a dead zone of polymerizable liquid in contact with the build surface, and (ii) continuously maintaining a gradient of polymerization zone between the dead zone and the solid polymer and in contact with each thereof. The gradient of polymerization zone comprises the polymerizable liquid in partially cured form (e.g.
    Type: Application
    Filed: September 8, 2023
    Publication date: October 3, 2024
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Publication number: 20240082553
    Abstract: A method of forming a three-dimensional object is carried out by providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid; irradiating the build region through the optically transparent member to form a solid polymer from the polymerizable liquid and advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer, while also concurrently with the irradiating and/or advancing steps: (i) continuously maintaining a dead zone of polymerizable liquid in contact with the build surface, and (ii) continuously maintaining a gradient of polymerization zone between the dead zone and the solid polymer and in contact with each thereof. The gradient of polymerization zone comprises the polymerizable liquid in partially cured form (e.g.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 14, 2024
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Publication number: 20240051222
    Abstract: Described herein are methods, systems and apparatus (including associated control methods, systems and apparatus), for the production of a three-dimensional object by “bottom up” additive manufacturing, in which a carrier is vertically reciprocated with respect to a build surface, to enhance or speed the refilling of the build region with a solidifiable liquid. In preferred (but not necessarily limiting) embodiments, the three-dimensional object is produced from a liquid interface by continuous liquid interface production (i.e., “CLIP”).
    Type: Application
    Filed: August 29, 2023
    Publication date: February 15, 2024
    Inventors: Alexander Ermoshkin, David Shirvanyants, Nordstrom Kirk Phelps, Nikita Ermoshkin, Edward T. Samulski, Joseph M. DeSimone
  • Publication number: 20230373156
    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: Application
    Filed: October 28, 2021
    Publication date: November 23, 2023
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Patent number: 11786711
    Abstract: A method of forming a three-dimensional object is carried out by providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid; irradiating the build region through the optically transparent member to form a solid polymer from the polymerizable liquid and advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer, while also concurrently with the irradiating and/or advancing steps: (i) continuously maintaining a dead zone of polymerizable liquid in contact with the build surface, and (ii) continuously maintaining a gradient of polymerization zone between the dead zone and the solid polymer and in contact with each thereof. The gradient of polymerization zone comprises the polymerizable liquid in partially cured form (e.g.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: October 17, 2023
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Patent number: 11772324
    Abstract: Described herein are methods, systems and apparatus (including associated control methods, systems and apparatus), for the production of a three-dimensional object by “bottom up” additive manufacturing, in which a carrier is vertically reciprocated with respect to a build surface, to enhance or speed the refilling of the build region with a solidifiable liquid. In preferred (but not necessarily limiting) embodiments, the three-dimensional object is produced from a liquid interface by continuous liquid interface production (i.e., “CLIP”).
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: October 3, 2023
    Assignee: Carbon, Inc.
    Inventors: Alexander Ermoshkin, David Shirvanyants, Nordstrom Kirk Phelps, Nikita Ermoshkin, Edward T. Samulski, Joseph M. DeSimone
  • Patent number: 11654625
    Abstract: The present disclosure describes an apparatus for additively manufacturing a three-dimensional object. The apparatus includes a radiation source, a carrier on which the three-dimensional object is made, an applicator assembly configured to apply a polymerizable liquid, and a frame, with the applicator assembly and the radiation source connected to the frame. A first drive assembly interconnects the applicator assembly and the frame and a second drive assembly interconnects the carrier and the frame. The frame defines a build region between the applicator assembly and the carrier. The applicator assembly includes a polymerizable liquid supply chamber, an application roller, and a metering roller. The applicator assembly may optionally include a post-metering roller. An apparatus comprising a first and a second applicator assembly and a smaller scale version of the apparatus are also described.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 23, 2023
    Assignee: Carbon, Inc.
    Inventors: Soren Rademacher, David Shirvanyants, Alexander Ermoshkin, Derek Alan Faust
  • Publication number: 20230150189
    Abstract: Methods of making a three-dimensional object from a light polymerizable resin are described. A method may include: (a) providing a window, a light polymerizable resin, a laterally translatable substrate between said window and said resin to which said resin is adhered, and a carrier platform above said window; (b) irradiating said resin with light through said window and said translatable substrate, and vertically advancing said carrier away from said window, to produce a growing object on said carrier platform and consume resin beneath said growing object; and (c) laterally advancing said translatable substrate with said resin adhered thereto across said window to drag fresh resin beneath said growing object, continue producing said growing object and continue consuming fresh resin, until said three-dimensional object is produced.
    Type: Application
    Filed: October 28, 2020
    Publication date: May 18, 2023
    Inventors: Matthew Panzer, Kyle Laaker, John R. Tumbleston, Bob E. Feller, Soren Rademacher, Stephen Paul Land, Henry Quarles Bibb, III, David Shirvanyants, Alexander Ermoshkin
  • Patent number: 11518096
    Abstract: A build plate for a three-dimensional printer includes: a rigid, optically transparent, gas-impermeable planar base having an upper surface and a lower surface; and a flexible, optically transparent, gas-permeable sheet having an upper and lower surface, the sheet upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface positioned on the base upper surface. The build plate includes a gas flow enhancing feature configured to increase gas flow to the build surface.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: December 6, 2022
    Assignee: Carbon, Inc.
    Inventors: David Moore, John R. Tumbleston, Edward T. Samulski, Alexander Ermoshkin, Jason P. Rolland, Ariel M. Herrmann, Bob E. Feller
  • Publication number: 20220348000
    Abstract: A method of forming a three-dimensional object includes: providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid, irradiating the build region with light through the optically transparent member to form a solid polymer from the polymerizable liquid, and advancing said carrier away from said build surface to form said three-dimensional object from said solid polymer. The irradiating step includes projecting focused light at the build region, and the advancing step is carried out at a rate that is dependent on an average light intensity of the focused light.
    Type: Application
    Filed: July 8, 2022
    Publication date: November 3, 2022
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski, Jason P. Rolland
  • Publication number: 20220250313
    Abstract: Described herein are methods, systems and apparatus (including associated control methods, systems and apparatus), for the production of a three-dimensional object by “bottom up” additive manufacturing, in which a carrier is vertically reciprocated with respect to a build surface, to enhance or speed the refilling of the build region with a solidifiable liquid. In preferred (but not necessarily limiting) embodiments, the three-dimensional object is produced from a liquid interface by continuous liquid interface production (i.e., “CLIP”).
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Inventors: Alexander Ermoshkin, David Shirvanyants, Nordstrom Kirk Phelps, Nikita Ermoshkin, Edward T. Samulski, Joseph M. DeSimone
  • Patent number: 11400698
    Abstract: Described herein are methods, systems and apparatus (including associated control methods, systems and apparatus), for the production of a three-dimensional object by “bottom up” additive manufacturing, in which a carrier is vertically reciprocated with respect to a build surface, to enhance or speed the refilling of the build region with a solidifiable liquid. In preferred (but not necessarily limiting) embodiments, the three-dimensional object is produced from a liquid interface by continuous liquid interface production (i.e., “CLIP”).
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 2, 2022
    Assignee: Carbon, Inc.
    Inventors: Alexander Ermoshkin, David Shirvanyants, Nordstrom Kirk Phelps, Nikita Ermoshkin, Edward T. Samulski, Joseph M. DeSimone
  • Patent number: 11390062
    Abstract: A method of forming a three-dimensional object includes: providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid, irradiating the build region with light through the optically transparent member to form a solid polymer from the polymerizable liquid, and advancing said carrier away from said build surface to form said three-dimensional object from said solid polymer. The irradiating step includes projecting focused light at the build region, and the advancing step is carried out at a rate that is dependent on an average light intensity of the focused light.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: July 19, 2022
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski, Jason P. Rolland
  • Patent number: 11376787
    Abstract: The present disclosure describes an additive manufacturing apparatus. The apparatus includes a chamber (11) having a planar circumferential top edge portion (12) defining a chamber orifice (13); a stage (15) movably positioned in the chamber (11), the two together configured to receive a viscous resin; a dispenser (30) facing the stage (15) and operatively associated therewith, the dispenser (30) configured to apply a planar coating of viscous resin; a primary drive (22) operatively associated with the dispenser (30) and chamber (11), the primary drive (22) configured to move the dispenser (30) across the chamber orifice (13); a light engine (40) facing the stage (15) and operatively associated therewith, the light engine (40) configured to expose a coating of resin on the stage (15) planar top surface (12) to patterned light; and a stage drive (24) operatively associated with the stage (15) and configured to retract the stage (15) into the chamber (11), following exposure of a coating of resin.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: July 5, 2022
    Assignee: Carbon, Inc.
    Inventors: Soren Rademacher, David Shirvanyants, Stephen Paul Land, Henry Quarles Bibb, III, Alexander Ermoshkin
  • Publication number: 20220088861
    Abstract: The present disclosure describes an additive manufacturing apparatus. The apparatus includes a chamber (11) having a planar circumferential top edge portion (12) defining a chamber orifice (13); a stage (15) movably positioned in the chamber (11), the two together configured to receive a viscous resin; a dispenser (30) facing the stage (15) and operatively associated therewith, the dispenser (30) configured to apply a planar coating of viscous resin; a primary drive (22) operatively associated with the dispenser (30) and chamber (11), the primary drive (22) configured to move the dispenser (30) across the chamber orifice (13); a light engine (40) facing the stage (15) and operatively associated therewith, the light engine (40) configured to expose a coating of resin on the stage (15) planar top surface (12) to patterned light; and a stage drive (24) operatively associated with the stage (15) and configured to retract the stage (15) into the chamber (11), following exposure of a coating of resin.
    Type: Application
    Filed: April 23, 2020
    Publication date: March 24, 2022
    Inventors: Soren Rademacher, David Shirvanyants, Stephen Paul Land, Henry Quarles Bibb, III, Alexander Ermoshkin
  • Publication number: 20220055301
    Abstract: The present disclosure describes an apparatus for additively manufacturing a three-dimensional object. The apparatus includes a radiation source, a carrier on which the three-dimensional object is made, an applicator assembly configured to apply a polymerizable liquid, and a frame, with the applicator assembly and the radiation source connected to the frame. A first drive assembly interconnects the applicator assembly and the frame and a second drive assembly interconnects the carrier and the frame. The frame defines a build region between the applicator assembly and the carrier. The applicator assembly includes a polymerizable liquid supply chamber, an application roller, and a metering roller. The applicator assembly may optionally include a post-metering roller. An apparatus comprising a first and a second applicator assembly and a smaller scale version of the apparatus are also described.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: Soren Rademacher, David Shirvanyants, Alexander Ermoshkin, Derek Alan Faust
  • Publication number: 20220048242
    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: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Patent number: RE49180
    Abstract: A method of forming a three-dimensional object is carried out by: providing a carrier and a pool of immiscible liquid, the pool having a liquid build surface, the carrier and the liquid build surface defining a build region therebetween; filling the build region with a polymerizable liquid, wherein the immiscible liquid is immiscible with the polymerizable liquid (in some embodiments wherein the immiscible liquid has a density greater than the polymerizable liquid); irradiating the build region through at least a portion of the pool of immiscible liquid to form a solid polymer from the polymerizable liquid and advancing the carrier away from the liquid build surface to form the three-dimensional object comprised of the solid polymer from the polymerizable liquid.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: August 23, 2022
    Assignee: Carbon, Inc.
    Inventors: Lloyd M. Robeson, Edward T. Samulski, Alexander Ermoshkin, Joseph M. DeSimone