Patents Assigned to Stratasys, Inc.
  • Ribbon filament and assembly for use in extrusion-based digital manufacturing systems
    Patent number: 10759107
    Abstract: A consumable material for use in an extrusion-based digital manufacturing system, the consumable material comprising a length and a cross-sectional profile of at least a portion of the length that is axially asymmetric. The cross-sectional profile is configured to provide a response time with a non-cylindrical liquefier of the extrusion-based digital manufacturing system that is faster than a response time achievable with a cylindrical filament in a cylindrical liquefier for a same thermally limited, maximum volumetric flow rate.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: September 1, 2020
    Assignee: STRATASYS, INC.
    Inventors: J. Samuel Batchelder, William J. Swanson, S. Scott Crump
  • Print assembly for additive manufacturing system, and methods of use thereof
    Patent number: 10744753
    Abstract: A print assembly for use in an additive manufacturing system to print three-dimensional parts, which includes a coarse positioner, a fine positioner, and a liquefier assembly, where a portion of the liquefier assembly is operably mounted to the fine positioner such that the fine positioner is configured to move the portion of the liquefier assembly relative to the coarse positioner.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: August 18, 2020
    Assignee: STRATASYS, INC.
    Inventors: J. Samuel Batchelder, William J. Swanson
  • Core/shell filament for use with extrusion-based additive manufacturing system
    Patent number: 10695979
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 30, 2020
    Assignee: STRATASYS, INC.
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Multi-user access to fabrication resources
    Patent number: 10696038
    Abstract: An interactive platform supports multi-user participation in a shared virtual workspace to prepare and schedule virtual print trays for printing on a three-dimensional (3D) printer or other fabrication resource. Computerized models may be automatically positioned within the print tray, manually positioned within the print tray, or some combination of these. After objects are placed in the virtual workspace users may be given identity-based control of the print tray including, e.g., identity-specific capabilities for viewing, modifying or removing objects within the print tray. This permits improved control over aspects of interest to particular users including, e.g., security, object orientation, priority, fabrication speed, fabrication cost, and so forth within a shared fabrication environment.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 30, 2020
    Assignee: Stratasys, Inc.
    Inventors: Grant Thomas-Lepore, Blake Zachary Courter, Roger Rudolf S. Maranan
  • Additive manufacturing system with sliding thermal isolator
    Patent number: 10688721
    Abstract: An additive manufacturing system includes a build chamber with at least first and second side walls and top and bottom walls. A central deformable, thermal insulator has a first edge and a second edge, where a print head carriage is movably retained within the central deformable thermal insulator and is configured to move print heads within a build plane of the build chamber under control of a gantry. The system includes first and second dynamic thermal barriers each having a length between a proximal edge and a distal edge wherein the proximal edge is configured to be secured to the central deformable insulator and a distal edge is configured to be movably retained to the build chamber such that as the print head carriage moves laterally across the build plane, each dynamic thermal barrier moves with the central deformable insulator and print head carriage, and retains its length.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 23, 2020
    Assignee: STRATASYS, INC.
    Inventors: William J. Swanson, Dominic F. Mannella
  • Additive manufacturing system and process with precision substractive technique
    Patent number: 10682807
    Abstract: An additive manufacturing system and process for producing three-dimensional parts, which includes forming layers of the three-dimensional part from a part material at a first resolution, and ablating selected voxels of the formed layers with a laser beam at a second resolution that is higher than the first resolution.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: June 16, 2020
    Assignee: STRATASYS, INC.
    Inventor: J. Samuel Batchelder
  • Method and system for automated print failure detection and re-submission
    Patent number: 10684806
    Abstract: A method includes receiving an indication that a 3D printer has encountered an error printing an instance of a 3D print job and selecting an idle 3D printer to print the instance of the 3D print job. Previous printing instructions for the instance of the 3D print job are changed based on the selected idle 3D printer and the changed printing instructions are provided to the selected idle 3D printer.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 16, 2020
    Assignee: STRATASYS, INC.
    Inventors: Ronald G. Schloesser, William J. Swanson
  • Seam concealment for three-dimensional models
    Patent number: 10675803
    Abstract: A three-dimensional model built with an extrusion-based digital manufacturing system, and having a perimeter based on a contour tool path that defines an interior region of a layer of the three-dimensional model, where at least one of a start point and a stop point of the contour tool path is located within the interior region of the layer.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 9, 2020
    Assignee: STRATASYS, INC.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • High-temperature soluble support material for additive manufacturing
    Patent number: 10675853
    Abstract: A support material for use in an additive manufacturing system, which includes a thermoplastic copolymer polymerized from monomers comprising acid-functional monomers having carboxylic acid groups, and one or more non-acid-functional monomers, where a portion of the carboxylic acid groups are neutralized with a base having an alkali metal cation. The thermoplastic copolymer has a high glass transition temperature and melt processing temperature, and is thermally stable at its melt processing temperature. The neutralized thermoplastic copolymer is soluble in an alkaline aqueous solution.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: June 9, 2020
    Assignee: STRATASYS, INC.
    Inventors: Adam R. Pawloski, Jiayi Zhu, Kent Kaske, Luke M. B. Rodgers, Theresa Sherar
  • Conical viscosity pump with axially positionable impeller and method of printing a 3D part
    Patent number: 10670019
    Abstract: A pump assembly for use in an additive manufacturing system includes a viscosity pump having a first end and a second end wherein the first end has a cross sectional area greater than a cross sectional area of the second end. The viscosity pump has a conical shaped inner surface defining a pump chamber, an inlet proximate the first end and an outlet proximate the second end. The viscosity pump includes an impeller having an axis of rotation, where the impeller has a shaft positioned through the first end of the first housing and into the pump chamber. The impeller includes a distal tip-end at a distal end of the shaft wherein the impeller is configured to be axially displaced within the pump chamber of the viscosity pump parallel to the axis of rotation. An actuator is coupled to a proximal end of the impeller, wherein the actuator is configured to move the impeller parallel to the axis of rotation.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 2, 2020
    Assignee: STRATASYS, INC.
    Inventors: Robert L. Zinniel, J. Samuel Batchelder
  • Platen planarizing process for additive manufacturing system
    Patent number: 10661499
    Abstract: A method for printing a three-dimensional part with an additive manufacturing system, the method comprising generating and printing a planarizing part having a substantially-planar top surface relative to a build plane, and a bottom surface that substantially mirrors a topography of a platen surface, and printing the three-dimensional part over the substantially-planar top surface of the printed planarizing part.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 26, 2020
    Assignee: STRATASYS, INC.
    Inventors: Joseph E. LaBossiere, Michael D. Bosveld, Dominic F. Mannella, William J. Swanson
  • Starter piece and printing methods for additive manufacturing system
    Patent number: 10583646
    Abstract: A starter piece for printing a three-dimensional item includes a main body having a face surface, a keel coupled to the main body, a guide tab extending from the keel, and at least one retaining mechanism coupled to the main body. Printing a three-dimensional item with an additive manufacturing system having a print foundation, a print head configured to print the three-dimensional item, and a plurality of support rails includes printing a support structure for the three-dimensional item in a layer by layer manner along the printing axis along with the printing of the three-dimensional item. The support structure is printed to provide a support between the three-dimensional item and the plurality of support rails of the additive manufacturing system.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 10, 2020
    Assignee: STRATASYS, INC.
    Inventors: Chad E. Beery, Michael D. Bosveld, Robert E. Styer
  • Print head assembly and print head for use in fused deposition modeling system
    Patent number: 10576693
    Abstract: A print head assembly that includes a print head carriage and multiple, replaceable print heads that are configured to be removably retained in receptacles of the print head carriage. The print heads each include a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 3, 2020
    Assignee: STRATASYS, INC.
    Inventors: William J. Swanson, J. Samuel Batchelder, Kevin C. Johnson, Timothy A. Hjelsand, James W. Comb
  • Print foundation positioning and printing methods for additive manufacturing system
    Patent number: 10562289
    Abstract: Method for printing a three-dimensional part layerwise with an additive manufacturing system includes printing layers by depositing material from a print head onto a print foundation, incrementing a position of the print head relative to the print foundation after each layer is printed, and indexing the print foundation carrying the printed layers away from the print head along the printing axis after a number of layers are printed. Printing is performed with driven and fixed rails clamped against movement of the print foundation. Moving the print foundation includes moving the driven rails with respect to the fixed rails in a direction substantially perpendicular to the build plane. Additive manufacturing system includes a drive mechanism to index the print foundation on the printing axis using fixed and driven rails, the driven rails engaging the print foundation for moving the print foundation.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: February 18, 2020
    Assignee: STRATASYS, INC.
    Inventors: Robert L. Skubic, John Bushey, Chad E. Beery, Michael D. Bosveld, Robert E. Styer
  • Method of printing 3D parts with core/shell filaments where the core contains particles
    Patent number: 10563324
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a matrix of a first base polymer and particles dispersed within the matrix, and a shell portion comprising a same or a different base polymer. The consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional part, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament and retain the particles within the roads of the printed part and do not penetrate the outer surface of the shell portion.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: February 18, 2020
    Assignee: STRATASYS, INC.
    Inventors: Christopher Scott Graley, Christine Lawrence Sumerel, James E. Orrock
  • Additive manufacturing system with extended printing volume, and methods of use thereof
    Patent number: 10549517
    Abstract: An additive manufacturing system for printing three-dimensional parts, the system comprising a heatable region, a receiving surface, a print head configured to print a three-dimensional part onto the receiving surface in a layer-by-layer manner along a printing axis, and a drive mechanism configured to index the receiving surface along the printing axis such that the receiving surface and at least a portion of the three-dimensional part out of the heated region.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 4, 2020
    Assignee: STRATASYS, INC.
    Inventors: S. Scott Crump, Dominic F. Mannella, William J. Swanson, Kevin C. Johnson, Ronald G. Schloesser, Joseph E. LaBossiere, Richard Thomas Anderson, Michael D. Bosveld, Paul J. Leavitt
  • Thermal drying system for additive manufacturing device
    Patent number: 10518472
    Abstract: An additive manufacturing device includes at least one liquefier assembly that receives filament material from at least one feedstock and extrudes the material in a flowable form. A thermal drying system removes water vapor and heats compressed air to a preselected temperature set point to form conditioned air. At least one enclosed filament path houses and guides the filament material from a supply to the at least one liquefier assembly. The enclosed filament path is exposed to the conditioned air from the thermal drying system so as to keep the filament material dry as it is fed to the at least one liquefier assembly.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: December 31, 2019
    Assignee: STRATASYS, INC.
    Inventors: Gary Larson, Brian Sabart
  • Ripple reduction in an additive manufacturing system
    Patent number: 10513103
    Abstract: An assembly for use in an additive manufacturing system to print a three-dimensional part that includes an extruder comprising a gear and a motor that turns the gear, wherein rotation of the gear regulates a flow of material out of the extruder. A controller, provides a control signal to the motor to control the rate at which the motor turns the at least one gear and incorporates a time-varying signal into the control signal to reduce ripples in the material output by the extruder.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 24, 2019
    Assignee: STRATASYS, INC.
    Inventors: Paul J. Leavitt, Andrew Rice, Timothy Hjelsand
  • Material hopper
    Patent number: D874780
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: February 4, 2020
    Assignee: STRATASYS, INC.
    Inventors: Michael D. Bosveld, Robert L. Skubic
  • Nozzle
    Patent number: D888115
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: June 23, 2020
    Assignee: STRATASYS, INC.
    Inventors: Paul Leavitt, Aaron Gregg, Ben Krall, Bryan Migliori, James Flannigan