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).

  • Publication number: 20200398480
    Abstract: A method of making a three-dimensional object includes: (a) providing an apparatus comprising a radiation source, a carrier, and a movable belt positioned therebetween, with the belt comprised of an optically transparent material, and with the belt permeable to a polymerization inhibitor; (b) applying a polymerizable liquid to a first surface of the belt, and contacting a second surface of the belt to the polymerization inhibitor, (c) contacting a portion of the first surface to the carrier or the three dimensional object so that the belt adheres thereto with the polymerizable liquid positioned therebetween; (d) irradiating the polymerizable liquid with actinic radiation through the belt from the radiation source to polymerize the polymerizable liquid positioned therebetween; then (e) optionally separating the belt from the carrier or the three dimensional object; and then (f) repeating steps (b) through (e) until the three dimensional object is completed.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Alexander Ermoshkin, Nikita Ermoshkin, Robert K. Pinschmidt, JR., Zachary Polizzi, Soren Rademacher, David Shirvanyants, Edward T. Samulski
  • Patent number: 10792868
    Abstract: A method of making a three-dimensional object is carried out by: (a) providing an apparatus comprising a radiation source, a carrier on which the three dimensional object is made, and a movable belt positioned therebetween, the belt having a first surface and an opposite second surface, with the belt comprised of an optically transparent material, and with the belt permeable to a polymerization inhibitor; (b) applying a polymerizable liquid to the first surface of the belt, and contacting the second surface of the belt to the polymerization inhibitor, (c) contacting a portion of the belt first surface having the polymerizable liquid thereon to the carrier or the three dimensional object so that the belt adheres thereto with the polymerizable liquid positioned therebetween; (d) irradiating the polymerizable liquid with actinic radiation through the belt from the radiation source to polymerize the polymerizable liquid positioned therebetween; then (e) optionally separating the belt from the carrier or the three
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 6, 2020
    Assignee: Carbon, Inc.
    Inventors: Alexander Ermoshkin, Nikita Ermoshkin, Robert K. Pinschmidt, Jr., Zachary Polizzi, Soren Rademacher, David Shirvanyants, Edward T. Samulski
  • Patent number: 10737438
    Abstract: A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween, with the carrier positioned adjacent and spaced apart from the build surface at a start position; then (b) forming an adhesion segment of the three-dimensional object (c) optionally but preferably forming a transition segment of the three dimensional object; and then (d) forming a body segment of the three dimensional object. In each case, the segment can be formed by: (i) filling the build region with a polymerizable liquid, (ii) continuously or intermittently irradiating the build region with light through the optically transparent, and (iii) continuously or intermittently advancing the carrier away from the build surface, to thereby form that segment from the polymerizable liquid.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 11, 2020
    Assignee: Carbon, Inc.
    Inventors: Alexander Ermoshkin, David Shirvanyants, John R. Tumbleston
  • 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: 10668709
    Abstract: A method of forming a three-dimensional object (17) includes: providing a carrier (18) and an optically transparent member (15) having a build surface, the carrier (18) and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid (16); irradiating the build region with light (12) through the optically transparent member (15) to form a solid polymer from the polymerizable liquid; and advancing the carrier (18) away from the build surface to form the three-dimensional object (17) from the solid polymer. The carrier (18) includes at least one retain and release (34) feature that is configured to: i) retain the three-dimensional object (17) formed from the solid polymer on the carrier (18) in a first state; and ii) facilitate release of the three-dimensional object (17) formed from the solid polymer from the carrier (18) in a second state.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 2, 2020
    Assignee: Carbon, Inc.
    Inventors: Alexander Ermoshkin, David Shirvanyants, Joseph M. DeSimone, Nordstrom Kirk Phelps, Jason P. Rolland
  • Patent number: 10661501
    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. An apparatus to perform the method is also disclosed.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: May 26, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Nordstrom Kirk Phelps, Alexander Ermoshkin
  • Publication number: 20200139617
    Abstract: A method of forming a three-dimensional object, comprises 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 while concurrently advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer, while also concurrently: (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 comprising the polymerizable liquid in partially cured form. Apparatus for carrying out the method is also described.
    Type: Application
    Filed: November 29, 2018
    Publication date: May 7, 2020
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • 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: 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: 10569465
    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 the carrier away from the build surface to form the three-dimensional object from the solid polymer. The irradiating step is carried out with a plurality of tiled images projected into the build region, and each tiled image includes an array of projected pixels. An apparatus to perform the method is also discloses.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: February 25, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Nordstrom Kirk Phelps, Alexander Ermoshkin
  • Patent number: 10538030
    Abstract: A method of forming a three-dimensional object useful as a casting mold 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 liquid photocurable ceramic resin; 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: May 9, 2016
    Date of Patent: January 21, 2020
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Edward T. Samulski, Alexander Ermoshkin, Philip M. DeSimone
  • Publication number: 20200009852
    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: September 16, 2019
    Publication date: January 9, 2020
    Inventors: Alexander Ermoshkin, David Shirvanyants, Nordstrom Kirk Phelps, Nikita Ermoshkin, Edward T. Samulski, Joseph M. DeSimone
  • Publication number: 20190389127
    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: June 8, 2018
    Publication date: December 26, 2019
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Patent number: 10471699
    Abstract: Described herein are methods and apparatus for the production of a three-dimensional object by “bottom up” additive manufacturing, in which a carrier (112) 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 embodiments, the three-dimensional object is produced from a liquid interface by continuous liquid interface production (i.e., “CLIP”).
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: November 12, 2019
    Assignee: Carbon, Inc.
    Inventors: Alexander Ermoshkin, David Shirvanyants, Nordstrom Kirk Phelps, Nikita Ermoshkin, Edward T. Samulski, Joseph M. DeSimone
  • Patent number: 10434706
    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: March 1, 2019
    Date of Patent: October 8, 2019
    Assignee: Carbon, Inc.
    Inventors: Lloyd M. Robeson, Edward T. Samulski, Alexander Ermoshkin, Joseph M. DeSimone
  • Publication number: 20190193326
    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: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Inventors: Lloyd M. Robeson, Edward T. Samulski, Alexander Ermoshkin, Joseph M. DeSimone
  • Publication number: 20190134888
    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: August 20, 2018
    Publication date: May 9, 2019
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Publication number: 20190126547
    Abstract: The present invention relates to methods and an apparatus for the fabrication of solid three-dimensional objects from liquid polymerizable materials.
    Type: Application
    Filed: May 7, 2018
    Publication date: May 2, 2019
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Edward T. Samulski
  • Publication number: 20190126534
    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: Application
    Filed: November 29, 2018
    Publication date: May 2, 2019
    Inventors: Joseph M. DeSimone, Alexander Ermoshkin, Nikita Ermoshkin, Edward T. Samulski
  • Patent number: 10259171
    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: April 20, 2015
    Date of Patent: April 16, 2019
    Assignee: CARBON, INC.
    Inventors: Lloyd M. Robeson, Edward T. Samulski, Alexander Ermoshkin, Joseph M. DeSimone