Patents Assigned to Stratasys, Inc.
  • ADDITIVE MANUFACTURING TECHNIQUE FOR PRINTING THREE-DIMENSIONAL PARTS WITH PRINTED RECEIVING SURFACES
    Publication number: 20140048971
    Abstract: A method for printing three-dimensional parts with an additive manufacturing system, comprising printing successive layers having increasing cross-sectional areas, and printing layers of a three-dimensional part onto the previously printed layers, where a last layer of the previously printed successive layers has a cross-sectional area that is at least as large as a footprint area of the three-dimensional part.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 20, 2014
    Applicant: Stratasys, Inc.
    Inventors: Dominic F. Mannella, William J. Swanson
  • Liquefier assembly for use in extrusion-based additive manufacturing systems
    Patent number: 8647098
    Abstract: A liquefier assembly for use in an extrusion-based additive manufacturing system, the liquefier assembly comprising a downstream portion having a first average inner cross-sectional area, and an upstream having a second average inner cross-sectional area that is less than the first inner cross-sectional area, the upstream portion defining a shoulder configured to restrict movement of a melt meniscus of a consumable material.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: February 11, 2014
    Assignee: Stratasys, Inc.
    Inventors: William J. Swanson, Kevin C. Johnson, Timothy A. Hjelsand, J. Samuel Batchelder
  • Print head assembly and print head for use in fused deposition modeling system
    Patent number: 8647102
    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: December 21, 2011
    Date of Patent: February 11, 2014
    Assignee: Stratasys, Inc.
    Inventors: William J. Swanson, J. Samuel Batchelder, Kevin C. Johnson, Timothy A. Hjelsand, James W. Comb
  • Optical encoder
    Patent number: 8598509
    Abstract: An optical encoder comprising a set of light sources configured to emit light rays in a serial manner, an encoded scale configured to reflect at least a portion of the emitted light rays, and a photodetector, where the photodetector is configured to detect at least a portion of the reflected light rays and to generate signals based on the detected light rays for each of the light sources.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 3, 2013
    Assignee: Stratasys, Inc.
    Inventor: J. Samuel Batchelder
  • RIBBON LIQUEFIER AND METHOD OF USE IN EXTRUSION-BASED DIGITAL MANUFACTURING SYSTEMS
    Publication number: 20130234366
    Abstract: A ribbon liquefier comprising an outer liquefier portion configured to receive thermal energy from a heat transfer component, and a channel at least partially defined by the outer liquefier portion, where the channel has dimensions that are configured to receive the ribbon filament, and where the ribbon liquefier is configured to melt the ribbon filament received in the channel to at least an extrudable state with the received thermal energy to provide a melt flow. The dimensions of the channel are further configured to conform the melt flow from an axially-asymmetric flow to a substantially axially-symmetric flow in an extrusion tip connected to the ribbon liquefier.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: Stratasys, Inc
    Inventors: J. Samuel Batchelder, William J. Swanson, S. Scott Crump
  • ADDITIVE MANUFACTURING METHOD FOR BUILDING THREE-DIMENSIONAL OBJECTS WITH CORE-SHELL ARRANGEMENTS, AND THREE-DIMENSIONAL OBJECTS THEREOF
    Publication number: 20130224423
    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: Application
    Filed: April 3, 2013
    Publication date: August 29, 2013
    Applicant: Stratasys, Inc.
    Inventor: Stratasys, Inc.
  • LAYER TRANSFUSION FOR ADDITIVE MANUFACTURING
    Publication number: 20130186549
    Abstract: An additive manufacturing system comprising a transfer medium configured to receive the layers from a imaging engine, a heater configured to heat the layers on the transfer medium, and a layer transfusion assembly that includes a build platform, and is configured to transfuse the heated layers onto the build platform in a layer-by-layer manner to print a three-dimensional part.
    Type: Application
    Filed: March 8, 2013
    Publication date: July 25, 2013
    Applicant: Stratasys, Inc.
    Inventor: Stratasys, Inc.
  • Electrophotography-based additive manufacturing system with transfer-medium service loops
    Patent number: 8488994
    Abstract: An additive manufacturing system for printing a three-dimensional part using electrophotography, the additive manufacturing system including a rotatable photoconductor component, a development station configured to develop layers of a material on a surface of the rotatable photoconductor component, a rotatable transfer medium configured to receive the developed layers from the surface of the rotatable photoconductor component, and a platen configured to receive the developed layers from the rotatable transfer medium in a layer-by-layer manner. The additive manufacturing system also includes a plurality of service loops configured to move portions of the rotatable transfer medium at different line speeds while maintaining a net rotational rate of full rotations of the rotatable transfer medium at a substantially steady state.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 16, 2013
    Assignee: Stratasys, Inc.
    Inventors: William J. Hanson, J. Randolph Sanders, Michael W. Bacus, Steven A. Chillscyzn
  • Print head for use in fused deposition modeling system
    Patent number: 8465111
    Abstract: A print head for use in a fused deposition modeling system, the print head includes a cartridge assembly and a liquefier pump assembly retained by the cartridge assembly.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: June 18, 2013
    Assignee: Stratasys, Inc.
    Inventors: William J. Swanson, J. Samuel Batchelder, Kevin C. Johnson, Timothy A. Hjelsand
  • Support structure removal system
    Patent number: 8459280
    Abstract: A support structure removal system comprising a vessel and a second component. The vessel comprises a vessel body, a porous floor configured to retain a three-dimensional part, and an impeller rotatably mounted below the porous floor. The second component comprises a surface configured to operably receive the vessel, and a rotation-inducing assembly located below the surface, where the rotation-inducing assembly is configured to rotate the impeller with magnetic fields when the vessel is received on the surface of the second component to agitate and direct flows of an aqueous fluid through the porous floor.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 11, 2013
    Assignee: Stratasys, Inc.
    Inventors: William J. Swanson, Dominic F. Mannella, Ronald G. Schloesser
  • Extrusion-based additive manufacturing process with part annealing
    Patent number: 8460755
    Abstract: A method for building a three-dimensional part, the method comprising providing a printed three-dimensional part and support structure, where the support structure comprises at least two polymers having different glass transition temperatures. The method also comprises annealing the three-dimensional part.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: June 11, 2013
    Assignee: Stratasys, Inc.
    Inventor: Luke M. B. Rodgers
  • Ribbon liquefier for use in extrusion-based digital manufacturing systems
    Patent number: 8439665
    Abstract: A ribbon liquefier comprising an outer liquefier portion configured to receive thermal energy from a heat transfer component, and a channel at least partially defined by the outer liquefier portion, where the channel has dimensions that are configured to receive the ribbon filament, and where the ribbon liquefier is configured to melt the ribbon filament received in the channel to at least an extrudable state with the received thermal energy to provide a melt flow. The dimensions of the channel are further configured to conform the melt flow from an axially-asymmetric flow to a substantially axially-symmetric flow in an extrusion tip connected to the ribbon liquefier.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: May 14, 2013
    Assignee: Stratasys, Inc.
    Inventors: J. Samuel Batchelder, William J. Swanson, S. Scott Crump
  • Print head assembly for use in fused deposition modeling system
    Patent number: 8419996
    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.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 16, 2013
    Assignee: Stratasys, Inc.
    Inventors: William J. Swanson, J. Samuel Batchelder, Kevin C. Johnson
  • Consumable assembly for use in extrusion-based layered deposition systems
    Patent number: 8403658
    Abstract: A consumable assembly comprising a container portion configured to retain a supply of filament, a guide tube connected to the container portion, and a pump portion connected to the guide tube.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: March 26, 2013
    Assignee: Stratasys, Inc.
    Inventor: William J. Swanson
  • Seam concealment for three-dimensional models
    Patent number: 8349239
    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: September 23, 2009
    Date of Patent: January 8, 2013
    Assignee: Stratasys, Inc.
    Inventors: Paul E. Hopkins, Donald J. Holzwarth
  • Syringe tip assembly and layered deposition systems utilizing the same
    Patent number: 8287959
    Abstract: A syringe tip assembly comprising a seal component configured to engage a syringe tip, a nozzle configured to slidably engage with the seal component, and a biasing member configured to apply a biasing pressure between the seal component and the nozzle.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: October 16, 2012
    Assignee: Stratasys, Inc.
    Inventor: J. Samuel Batchelder
  • Inorganic ionic support materials for digital manufacturing systems
    Patent number: 8245757
    Abstract: A support material for use with a digital manufacturing system, the support material comprising at least one inorganic ionic compound and is configured to be deposited with the digital manufacturing system using a layer-based additive technique to form a support structure for supporting at least one overhanging region of a three-dimensional model built with the digital manufacturing system.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: August 21, 2012
    Assignee: Stratasys, Inc.
    Inventors: S. Scott Crump, J. Samuel Batchelder, Timothy Sampson, John Barnett
  • Support material for digital manufacturing systems
    Patent number: 8246888
    Abstract: A support material feedstock comprising a first copolymer and a polymeric impact modifier, where the first copolymer includes a first monomer unit comprising a carboxyl group and a second monomer unit comprising a phenyl group.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: August 21, 2012
    Assignee: Stratasys, Inc.
    Inventors: Paul E. Hopkins, William R. Priedeman, Jr., Jeffrey F. Bye
  • Print head
    Patent number: D673605
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: January 1, 2013
    Assignee: Stratasys, Inc.
    Inventors: Kevin C. Johnson, Brett R. Johnson
  • Support cleaning system
    Patent number: D682490
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: May 14, 2013
    Assignee: Stratasys, Inc.
    Inventors: Jerome W. Goetzke, Micah T. Somers