Pattern Control Of Travel For A Forming Means (e.g., Depositing, Etc.) Patents (Class 425/375)
  • Patent number: 8011915
    Abstract: A lithographic apparatus is disclosed that has a first substrate table arranged to hold a substrate and a second substrate table arranged to hold a substrate, an imprint template holder arranged to hold an imprint template, and an imprintable medium dispenser, wherein the first substrate table is moveable between a first position located at or adjacent to the imprintable medium dispenser, and a second position located at or adjacent to the imprint template holder, and the second substrate table is moveable between the first and second positions, such that the first and second substrate tables swap positions.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: September 6, 2011
    Assignee: ASML Netherlands B.V.
    Inventor: Klaus Simon
  • Patent number: 7997886
    Abstract: A method and a system for forming a polymeric resin mold for molding plastic items, wherein the method includes: (a) using a rapid-prototyping process to create a polymeric resin shell having a configuration in the form of the mold; (b) introducing a reinforcing material into the shell; and (c) curing the shell. The system includes a rapid-prototyping apparatus that creates a plurality of the polymeric resin shells on a platform; a reinforcing material introduction apparatus that introduces a reinforcing material into each of the shells while the shells are on the platform to form a plurality of uncured molds on the platform; and a curing apparatus that cures the shells while they are on the platform.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: August 16, 2011
    Assignee: Align Technology, Inc.
    Inventor: Eric Kuo
  • Patent number: 7985061
    Abstract: An imprint apparatus in which a mold having a processing surface on which a predetermined imprint is formed is provided and an uncured resin material placed on a substrate is filled and cured in a space between the mold and the substrate and is subjected to imprint of the predetermined imprint formed on the processing surface of the mold. The imprint apparatus includes an attitude control mechanism for controlling attitudes of the mold and the substrate so that a first gap between a first end of the mold and the substrate and a second gap between a second end of the mold and the substrate are different from each other, and a measuring mechanism for measuring attitudes and positions of the mold and the substrate. Also provided is a mechanism for imparting a relative movement between the substrate and the mold so that the resin material approaches the first end of the mold and enters through the first gap and fills at least a part of the space between the mold and the substrate.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: July 26, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuhito Suehira, Junichi Seki, Shingo Okushima
  • Patent number: 7976302
    Abstract: A device (1) for manufacturing a three-dimensional object by a layer wise solidification of a building material at positions in the respective layers that correspond to the object is provided. The device comprises a machine frame (2, 3, 4, 5); a door (73) that is mounted at the machine frame and is swiveling between an open position and a closed position; a container (25) that can be removed from the device; and a support device (26) that is vertically movable in the container and has an upper side, which forms a building platform (78) on which the three-dimensional object is generated layer wise. A mounting (74) for the container (25) is provided at the door (73) and an attachment (75) is provided at the container (25), which attachment can be brought into an engagement with the mounting (74), so that the container (25) can be moved into the device (1) by closing the door (73) and/or can be moved out of the device by opening the door (73).
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: July 12, 2011
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Thomas Halder, Hans Perret
  • Patent number: 7974727
    Abstract: A volume element (voxel) printing system for printing a three-dimensional object includes a first printhead group having a plurality of first printheads configured to print a first voxel layer on a substrate; at least one second printhead group having a plurality of second printheads downstream from the first group, the second printhead group configured to print a subsequent voxel layer on at least part of the first layer, said second printheads being reconfigurable as backup printheads for the first printheads in case of failure; a conveyor configured to convey the substrate past the printhead groups; and a control system configured to control and monitor the printhead groups, the object insertion device, and the conveyor, and dynamically to reconfigure the second printheads upon detection of failure of a first printhead. The at least one second printhead group is vertically spaced from the substrate by a greater distance than the first printhead group.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: July 5, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Publication number: 20110147993
    Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.
    Type: Application
    Filed: April 10, 2008
    Publication date: June 23, 2011
    Applicant: Objet Geometries Ltd.
    Inventors: David Eshed, Eliahu M. Kritchman, Guy Menchik
  • Patent number: 7950131
    Abstract: A robotic system for forming features in orthodontic aligners includes a control system, a platen for three-dimensional positioning of the aligner, a heating station for selectively heating a small region of the aligner, and a thermoforming station for manipulating the heated region to form a desired feature in the aligner. Optionally, a laser cutting and trimming station can also be included to trim excess material from the aligner or to cut features into the aligner. The control system can include a processor with CAD software to enable a user to design features for aligners.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: May 31, 2011
    Inventor: Jack Keith Hilliard
  • Patent number: 7946840
    Abstract: A device for manufacturing a three-dimensional object by a layer-wise solidification of a building material in powder form at positions in the respective layers corresponding to the object is disclosed. The device comprises: a container (25) arranged in the device; a support device (26), which can be vertically moved in the container, wherein the upper side of the support device (26) forms a building platform (78), on which the three-dimensional object is generated layer-wise; an application device (27) for applying building material in powder form onto the building platform and a previously solidified layer, respectively; and an energy source (6) that provides a beam (9) for solidifying the building material in powder form. In a region below the container (25) in the device (1) outlets (90) are provided, wherein from each of the outlets (90) a directed flow of a fluid medium escapes in a directed manner to peripheral regions of the container (25).
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: May 24, 2011
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Hans Perret, Thomas Halder, Jochen Philippi, Peter Keller, Gerd Cantzler, Michael Goth, Siegfried Schmitzek
  • Patent number: 7931462
    Abstract: A device for manufacturing a three-dimensional object by a layerwise solidification of a building material in powder form at the positions in the respective layer that correspond to the object to be manufactured is provided. A work plane (4) is provided, in which successively layers of the building material in powder form, which are to be solidified, are applied and are partially solidified. An application device (5) for applying a layer of the building material in the work plane or onto a previously solidified layer of the building material has an application surface (53) facing the work plane (4). An adjustment device (59, 60, 54) is provided that is constructed such that an angle (?) between the application surface (53) and the work plane (4) is adjustable.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: April 26, 2011
    Assignee: EOS GmbH Electro Optical Systems
    Inventor: Thomas Mattes
  • Patent number: 7922471
    Abstract: An extrusion head is disposed over a substrate, and material is extruded through an oblique (e.g., semi-circular or tapered) outlet orifice of the extrusion head to form an associated extruded structure having an equilibrium shape that resists settling after being deposited on the substrate. The extrusion head includes fluidic channels having a flat surface formed by a flat first (e.g., metal) sheet, and an oblique (e.g., substantially semi-cylindrical) surface formed by elongated oblique trenches that are etched or otherwise formed in a second sheet. The fluidic channel communicates with the outlet orifice, which has a flat edge formed by the first sheet, and an oblique edge formed by an end of the oblique trench. The material is extruded through the outlet orifice such that its flat lower surface contacts the substrate, and its oblique upper surface faces away from the substrate. Two materials are co-extruded to form high aspect-ratio gridlines.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: April 12, 2011
    Assignee: Palo Alto Research Center Incorporated
    Inventors: David K. Fork, Thomas S. Zimmerman
  • Patent number: 7920936
    Abstract: A three dimensional object creation system for printing a three dimensional object comprised of layers stacked vertically with respect to each other includes a series of printheads for printing the layers, the series of printheads simultaneously printing at least two layers of different vertical positions within the stack; and a semiconductor memory for storing data defining at least one layer. The series of printheads are arranged in groups of one or more printheads per group, each group being fixedly positioned downstream of a preceding group with respect to the three dimensional object. Each group of printheads is adapted to print a layer at a predetermined vertical position within the stack.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: April 5, 2011
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Publication number: 20110076438
    Abstract: A method for creating a three-dimensional solid freeform fabrication object includes spreading a reactive powder on a substrate, selectively dispensing a core binder in the reactive powder to form a core material, and selectively dispensing a shell binder in the reactive powder to form a shell on the core material.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 31, 2011
    Inventors: Isaac Farr, Terry M. Lambright
  • Patent number: 7914270
    Abstract: A method may include the steps of: (a) providing a tire mold; (b) providing an extruder operatively connected to a head with a die assembly; (c) inserting at least a first compound into the first extruder; (d) forming an extrudate from the die assembly; (e) applying the extrudate directly from the die assembly into the tire mold to form a tire tread component; and, (f) controlling movement of the tire mold to correspond to the extrudate delivery.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: March 29, 2011
    Assignee: The Goodyear Tire & Rubber Company, Inc.
    Inventor: Gary Robert Burg
  • Publication number: 20110068502
    Abstract: A method of forming custom shaped injection molded parts from elastomeric materials includes using a rapid prototyping system to create a rigid, hollow, mold. The mold has a relatively thin, breakable, side wall. Elastomeric material can be injected into the mold and cured. The mold can then be broken to extract a cured elastomeric part.
    Type: Application
    Filed: October 22, 2009
    Publication date: March 24, 2011
    Inventor: Stavros P. Basseas
  • Patent number: 7896639
    Abstract: Apparatus for producing an object by sequentially forming thin layers of a construction material one on top of the other responsive to data defining the object, the apparatus comprising: a plurality of printing heads each having a surface formed with a plurality of output orifices and controllable to dispense the construction material through each orifice independently of the other orifices; a shuttle to which the printing heads are mounted; a support surface; and a controller adapted to control the shuttle to move back and forth over the support surface and as the shuttle moves to control the printing heads to dispense the construction material through each of their respective orifices responsive to the data to form a first layer on the support surface and thereafter, sequentially the other layers; wherein each printing head is dismountable from the shuttle and replaceable independently of the other printing heads.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: March 1, 2011
    Assignee: Objet Geometries Ltd.
    Inventors: Eliahu M. Kritchman, Igal Zeytoun
  • Patent number: 7897074
    Abstract: A liquefier assembly comprising a liquefier tube, where the liquefier tube comprises a sidewall having an inlet opening configured to receive a filament strand, an outlet opening, and a port disposed through the sidewall at a location between the inlet opening and the outlet opening, the port being configured to provide access for a filament drive mechanism to engage with the received filament strand. The liquefier assembly further comprises a heat transfer component configured to generate a thermal gradient along a longitudinal length of the sidewall between the port and the outlet opening.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: March 1, 2011
    Assignee: Stratasys, Inc.
    Inventors: J. Samuel Batchelder, William J. Swanson
  • Patent number: 7891964
    Abstract: A pump system comprising a delivery assembly configured to feed a solid material under operational power of a first drive motor, and a screw pump comprising a housing that at least partially defines a barrel of the screw pump, an extrusion tip secured to the housing at a first end of the barrel, a liquefier secured to the housing and intersecting with the barrel, and an impeller extending at least partially through the barrel. The liquefier is configured to receive the solid material fed from the delivery assembly, to at least partially melt the received solid material, and to direct the at least partially melted material to the barrel, and the impeller is configured to drive the at least partially melted material that is directed to the barrel toward the extrusion tip under operational power of a second drive motor.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: February 22, 2011
    Assignee: Stratasys, Inc.
    Inventors: Robert L. Skubic, James W. Comb, Jerome K. Grudem, Jr., William J. Swanson, John Samuel Batchelder, Steven M. Brose
  • Patent number: 7887316
    Abstract: A method and apparatus for forming three-dimensional objects by laser sintering that includes the use of dense phase pneumatic conveying to internally recycle overflow powder, and to thoroughly blend overflow, recovered and virgin powder to provide a consistent powder feed mix to a laser sintering machine. Overflow powder from the laser sintering machine is recovered and recycled back into the laser sintering machine for reuse. The approach results in a compact and reliable powder recycle system with complete blending and minimum attrition to the handled powder.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: February 15, 2011
    Assignee: 3D Systems, Inc.
    Inventor: Brian David Cox
  • Patent number: 7878791
    Abstract: A lithographic apparatus is disclosed that has a first substrate table arranged to hold a substrate and a second substrate table arranged to hold a substrate, an imprint template holder arranged to hold an imprint template, and an imprintable medium dispenser, wherein the first substrate table is moveable between a first position located at or adjacent to the imprintable medium dispenser, and a second position located at or adjacent to the imprint template holder, and the second substrate table is moveable between the first and second positions, such that the first and second substrate tables swap positions.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: February 1, 2011
    Assignee: ASML Netherlands B.V.
    Inventors: Klaus Simon, Karel Diederick Van Der Mast, Johan Frederik Dijksman
  • Patent number: 7874825
    Abstract: A nozzle for extruding a surface may include a first outlet configured to controllably extrude a first extrudate of unhardened material, a second outlet configured to controllably extrude a second extrudate of unhardened material that is separated from the first extrudate, a third outlet configured to extrude a third extrudate of unhardened material between the first and the second extrudates, and a controller. The third outlet may have a width that is substantially less than the distance between the first and second extrudates. The controller may be configured to cause the third extrudate to repeatedly traverse between the first and second extrudates and/or to cause the third extrudate to leave a plurality of substantial and separated spaces between the first and second extrudates.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: January 25, 2011
    Assignee: University of Southern California
    Inventor: Behrokh Khoshnevis
  • Patent number: 7871551
    Abstract: Systems, apparatus, and methods feed and distribute a powder over a working area used for producing three-dimensional objects. A powder storage unit contains a supply of powder, and a distribution member is arranged to be moveable across the working area to distribute a portion of powder onto the working area. In an embodiment, the distribution member is, in a first step, moveable a predetermined distance into a supply of powder placed in the powder storage unit, said distance being sufficiently long to bring about a transfer of a portion of powder from the powder supply at one side of the distribution member to another side of the distribution member facing the working area, and the distribution member is, in a second step, moveable towards and across the working area to distribute the portion of powder onto the working area. Other embodiments are disclosed.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: January 18, 2011
    Assignee: Arcam AB
    Inventors: Göran Wallgren, Ulf Ackelid, Mattias Svensson
  • Patent number: 7862320
    Abstract: A three-dimensional object forming apparatus forms a three-dimensional object by binding powder particles with a curable liquid. The apparatus includes a powder layer forming unit that spreads a powder to a uniform thickness to form a powder layer. A curable liquid ejection head ejects the curable liquid to the powder layer through an ejection nozzle. A sectional data producing device produces sectional data at each of a plurality of cross sections of a desired three-dimensional object according to shape data of the desired three-dimensional object. A cross-sectional member forming section is also included by which cross-sectional members are formed by ejecting the curable liquid to the powder layer from the curable liquid ejection head according to the sectional data and thus binding the powder layer. The cross-sectional member forming section includes a permeation rate controller controlling the permeation rate of the curable liquid to the powder layer.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: January 4, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Toshio Kumagai, Kazutoshi Fujisawa, Akio Ito
  • Patent number: 7862761
    Abstract: A pattern forming method for forming a pattern on a pattern forming material on a substrate by using an imprint pattern provided to a mold is constituted by preparing a substrate having thereon a pattern forming area, disposing the pattern forming material placed in an uncured state in the pattern forming area in a dispersion state at a plurality of positions at different intervals, and curing the pattern forming material in a state in which the pattern forming material is deformed in a shape corresponding to a shape of the imprint pattern provided to the mold.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: January 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shingo Okushima, Junichi Seki
  • Patent number: 7856288
    Abstract: An imprint system has a design data storing section which stores template information and remaining film thickness set value information, a vaporization-to-be-compensated storing section which stores a plurality of distributions of applied amounts for compensating vaporization, an arithmetic section which calculates a distribution of an applied amount for filling a pattern based upon the template information, calculates a distribution of an applied amount for forming a remaining film thickness based upon said remaining film thickness set value information, calculates a pattern density of the template from the template information, extracts a distribution of an applied amount for compensating vaporization, corresponding to this pattern density, from the vaporization-to-be-compensated storing section, and adds up this extracted distribution of an applied amount for compensating vaporization, the distribution of an applied amount for filling a pattern, and the distribution of an applied amount for forming a rema
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: December 21, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ikuo Yoneda, Shinji Mikami
  • Patent number: 7845930
    Abstract: The invention relates to a process or a device for the production of a three-dimensional object by layer-wise solidification of a photo-polymerizable resin by means of a planar or essentially planar construction/reference plane, at which the photo-polymerizable resin contained in the liquid material is to be hardened by electromagnetic irradiation, and wherein the material application for the subsequent layer automatically results from the separation of the last hardened layer from the construction/-reference plane, whereby the construction/reference plane is formed by an elastic film. The film is fixed in a frame, and the height position of the frame with the film is adjusted in a basin containing the liquid material such that the pressure of the liquid material compensates the sagging of the film (formation of a negative meniscus), and that the lower side of the film is permanently in contact with the material during the whole construction process.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: December 7, 2010
    Assignee: Envisiontec GmbH
    Inventors: Alexandr Shkolnik, Hendrik John, Ali El-Siblani
  • Patent number: 7841851
    Abstract: A cementitious material delivery system may include a pump configured to pump cementitious material and an accumulator. The accumulator may be a decoupling accumulator and may contain a reservoir configured to store cementitious material, an accumulator inlet to the reservoir configured to receive cementitious material pumped by the pump, an accumulator outlet configured to deliver cementitious material from the reservoir, and a pressure applicator configured to apply pressure to the cementitious material that is delivered from the accumulator outlet.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: November 30, 2010
    Assignee: University of Southern California
    Inventor: Behrokh Khoshnevis
  • Patent number: 7837458
    Abstract: A device (1) for manufacturing a three-dimensional object by a layer-wise solidification of a building material at positions in the respective layers that correspond to the object is provided. The device has a machine frame (2, 3, 4, 5) and support legs (51) that are mounted at the machine frame and by which the device (1) is supported on a substrate. The support legs (51) are arranged such that a three-point support of the device (1) at the substrate is given and at least two support legs (51) are mounted at the machine frame such that they are adjustable in height.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: November 23, 2010
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Hans Perret, Thomas Halder, Siegfried Schimitzek
  • Patent number: 7833005
    Abstract: A closed loop system for separating materials of differing melting points includes an ultrasonic bath including a solution configured to supply thermal energy and cavitation to the materials of differing melting points, a solution reservoir configured to adjust levels of the solution in the ultrasonic bath, and a filter configured to remove particles of one of the materials of differing melting points from the solution.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: November 16, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shawn D Hunter, Isaac Farr
  • Patent number: 7833001
    Abstract: A printing system for creating a three-dimensional object. The printing system includes a plurality of printheads including a first printhead configured to print a first material and a second printhead configured to print a second material. The system includes one or more curing mechanisms for curing the printed materials. The system includes at least one object incorporation device configured to incorporate a non-printed object into the three-dimensional object when partially complete. At least one printhead is configured to print one or more electrical connections to the incorporated object.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: November 16, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Patent number: 7829000
    Abstract: A method for creating a three-dimensional solid freeform fabrication object includes spreading a reactive powder on a substrate, selectively dispensing a core binder in the reactive powder to form a core material, and selectively dispensing a shell binder in the reactive powder to form a shell on the core material.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 9, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Isaac Farr, Terry M. Lambright
  • Patent number: 7820285
    Abstract: Provided is a solid rocket motor (SRM) insulation, wherein carbon nano fibers (CNF) are blended into a polyurethane matrix so as to disperse the CNF in the polymer. The so blended material is then extruded, injection molded or sprayed on or into the desired shape. Such SRM insulation has reduced ablation over prior art insulations, resulting in reduction in weight of the insulation needed in such rockets, permitting increase of payload therein.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: October 26, 2010
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Charles U. Pittman, Jr., Rusty L. Blanski, Joseph H. Koo, Patrick N. Ruth, Shawn H. Phillips
  • Patent number: 7815424
    Abstract: An imprinting machine that brings a mold having a pattern into contact with an object and transfers the pattern onto the object includes a measurement unit that measures a position of the mold when the mold contacts the object.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: October 19, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Nakamura, Hirohisa Ota, Eigo Kawakami, Kazuyuki Kasumi, Toshinobu Tokita
  • Publication number: 20100247703
    Abstract: A three-dimensional object forming apparatus for forming a three-dimensional object includes: a base platform; a transmission portion; a detachable construction tank; a movable powder supplying tank provided for driving to supply construction powder above the detachable construction tank; a print module including at least a print cartridge with at least a nozzle; a heating portion; an lifting portion arranged below the detachable construction tank; a nozzle cleaning module; a nozzle sealing module having a holder, at least a sealing portion and a moisture portion; and a stretchable dust-proof cover connected to a side of the powder supplying tank, which is provided for moving together with the powder supplying tank to cover the construction powder in the construction tank.
    Type: Application
    Filed: March 23, 2010
    Publication date: September 30, 2010
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Kwo Yuan Shi, Ya Ching Tung
  • Patent number: 7797071
    Abstract: A printer system is provided for developing a three dimensional (3D) printed structure. The system includes a plurality of spaced apart sets of printing devices. A conveyor system is arranged to serially convey a print medium in register with each set so that printed voxels from each successive set can form successive layers of the 3D printed structure upon the print medium. A placement mechanism is configured to place an object upon layers of the 3D printed structure.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: September 14, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Patent number: 7797069
    Abstract: A production line is provided for forming a layered product. The production line includes a conveyor configured to convey a substrate. A plurality of elongate printheads extend transverse to the conveyance direction and is configured to print voxels upon the conveyed substrate to form the layered product. The printheads are arranged to form a plurality of sets which are equidistantly spaced apart.
    Type: Grant
    Filed: November 23, 2008
    Date of Patent: September 14, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Patent number: 7785093
    Abstract: An improved stereolithography apparatus for forming three-dimensional objects using multiple chambered resin vats and a quick disconnect mounting system to permit concurrent use of multiple photopolymer build materials and easy change over of resin vats is disclosed. The apparatus permits easy change over from multiple chambered vat use to single chamber vat use and vice versa or change over between multiple chambered vats.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: August 31, 2010
    Assignee: 3D Systems, Inc.
    Inventors: Scott B. Holmboe, Gary L. Reynolds, Matthew K. Stonesmith, Charles W. Hull, Abraham N. Reichental
  • Patent number: 7780429
    Abstract: The present invention relates to a three-dimensional molding device for producing a three-dimensional molded object. The three-dimensional molding device comprises a receptacle for retaining a light-curing resin, a light source for irradiating light to cure the light-curing resin retained inside the receptacle, wherein the three-dimensional molded object is produced by curing the light-curing resin, and a flexible three-dimensional molded object holding plate, which adheres to the light-curing resin and holds the three-dimensional molded object when the resin in the receptacle is cured.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: August 24, 2010
    Assignee: Roland DG Corporation
    Inventor: Shigeki Kikuchi
  • Patent number: 7771183
    Abstract: Solid imaging apparatus and methods for use are disclosed that reduce the amount of uncured solid imaging build material remaining on a completed build object following the completion of the solid imaging build process. The amount of uncured build material is reduced through the use of either an uncoating web that removes excess build material from the build object during the course of the building process or an ink jet source of build material that uses only as much build material as is necessary for the fabrication of the build part. Also disclosed is an imager assembly for use with such a solid imaging apparatus that incorporates two or more individual imagers in an array and accounts for variations in the intensity and alignment of adjacent imagers. The apparatus can be modified for semi-continuous operation and for integrating into a manufacturing operation, if desired.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: August 10, 2010
    Assignee: 3D Systems, Inc.
    Inventors: Charles W. Hull, Jouni Partanen, Ray Soliz, William J. Pappas
  • Patent number: 7766641
    Abstract: A printer system is provided for developing a three dimensional (3D) printed structure. The system includes a plurality of spaced apart sets of printing devices. A conveyor system is arranged to serially convey a print medium operatively with respect to each set so that printed voxels from each successive set can form successive layers of the 3D printed structure upon the print medium. A placement mechanism is configured to place an object upon layers of the 3D printed structure. The placement mechanism includes a translation mechanism configured to translate the object at substantially the same velocity as the conveyance of the print medium during placement of the object. A plurality of curing mechanisms is interleaved between the sets of printing devices and is configured to cure the printed voxels.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: August 3, 2010
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook
  • Patent number: 7748971
    Abstract: This invention relates to a method for use in dispensing fluids especially particulate matter on to a surface to be coated, comprising a blade traversing along said surface, whereby the fluid is dispensed in front of said blade on to said surface, whereafter said blade is swept across the dispensed fluid such that it imparts vibrations. The fluid (5) is fed on to said surface through the bottom outlet of a container (3) vibrated cooperatively with the blade (7).
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: July 6, 2010
    Assignee: Voxeljet Technology GmbH
    Inventors: Rainer Höchsmann, Alexander Kudernatsch
  • Patent number: 7744364
    Abstract: A tip cleaning assembly for use with an extrusion head of an extrusion-based layered deposition system, the tip cleaning assembly comprising a support component, a purge ledge assembly mounted on the support component, at least one set block mounted on the support component adjacent the purge ledge assembly, and at least one contact head removably mounted on the first set block, where the at least one contact head is configured to engage at least one extrusion tip of the extrusion head.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: June 29, 2010
    Assignee: Stratasys, Inc.
    Inventors: Patrick W. Turley, Thomas L. Taatjes
  • Patent number: 7740472
    Abstract: A device for flowing a liquid on a surface comprises: a flow path. A first port supplies the liquid to one end of the flow path and applies a first port pressure for retaining the liquid when the flow path is remote from the surface. A second port receives the liquid from the other end of the flow path and applies a second port pressure such that the difference between the first and second negative port pressures is oriented to promote flow of the liquid from the first port to the second port via the flow path in response to the flow path being located proximal to the surface and the liquid in the device contacting the surface. The first and second port pressures are such that the liquid is drawn towards at least the second port in response to withdrawal of the flow path from the surface. Such devices may employ microfluidic technology and find application in surface patterning.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: June 22, 2010
    Assignee: International Business Machines Corporation
    Inventors: Emmanuel Delamarche, David Juncker, Bruno Michel, Heinz Schmid
  • Patent number: 7736577
    Abstract: A stereolithography apparatus that forms a three-dimensional model by sequentially laminating cured resin layers through repetition of a cycle of selectively applying light to liquid photocurable resin to form a cured resin layer, further applying liquid photocurable resin on the cured resin layer, and applying light to form a cured resin layer. The apparatus includes a table, a dispenser to supply the liquid photocurable resin onto the table, a recoater to apply the photocurable resin, and a controller to slow down a moving speed of the recoater based on a moving distance of the recoater during application operation of the recoater.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: June 15, 2010
    Assignee: JSR Corporation
    Inventors: Kimitaka Morohoshi, Toshio Teramoto
  • Patent number: 7713454
    Abstract: Arrangement for producing a three-dimensional product, which arrangement comprises a work table on which said three-dimensional product is to be built up, a powder dispenser which is arranged so as to distribute a thin layer of powder on the work table for forming a powder bed, a radiation gun for delivering energy to the powder, fusing together of the powder then taking place, means for guiding the beam emitted by the radiation gun over said powder bed for forming a cross section of said three-dimensional product by fusing together parts of said powder bed, and a control computer in which information about successive cross sections of the three-dimensional product is stored, which cross sections build up the three-dimensional product, where the control computer is intended to control said means for guiding the radiation gun over the powder bed according to an operating scheme forming a cross section of said three-dimensional body, said three-dimensional product being formed by successive fusing together of s
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: May 11, 2010
    Assignee: ARCAM AB
    Inventor: Morgan Larsson
  • Patent number: 7713048
    Abstract: A device (1) for manufacturing a three-dimensional object by a layerwise solidification of a building material at positions in the respective layers corresponding to the object is provided. The device comprises a machine frame (2, 3, 4, 5) and a building space (10) located in said machine frame, wherein in the building space (10) there are arranged: an application device (27) that applies layers of the building material onto a support device (26) and a previously solidified layer, respectively, by means of an application element (61); a dosage device (28, 29) that supplies building material from a building material accommodation region (23, 24) to the application device (27) for an application; and a heating device (31) for heating the applied layers of the building material. The building material accommodation region (23, 24) is limited by a wall that has a double-wall structure, so that a hollow space (34, 35) is formed therein.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: May 11, 2010
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Hans Perret, Peter Keller
  • Patent number: 7706909
    Abstract: A system that prints three dimensional products is provided. The system includes at least one printhead for printing material to create the printed product, and an object incorporation device. The object incorporation device incorporates inorganic semiconductor objects into cavities created during the printing process.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: April 27, 2010
    Assignee: Silverbrook Research Pty Ltd.
    Inventor: Kia Silverbrook
  • Patent number: 7690909
    Abstract: A stereolithography apparatus having a resin vat with resupply containers in one-way flow communication and a leveling container in two-way flow communication, an automatic offload cart to remove and replace build support platforms, an elevator assembly for supporting and releasably retaining a build platform removably attached to the stereolithography apparatus frame such that elevator forks supporting the build platform can be released into the vat and removed from the stereolithography apparatus with the vat, and a recoater assembly and recoater blade for mapping the resin surface in the vat and applying a fresh coating of resin to a cross-section being built in the vat.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 6, 2010
    Assignee: 3D Systems, Inc.
    Inventor: Ben Wahlstrom
  • Patent number: 7686605
    Abstract: A device (1) for manufacturing a three-dimensional object by a layer wise solidification of a building material at positions in the respective layers corresponding to the object is provided. The device comprises a building field, in which the solidification of the material in powder form takes place; an application element (61), that applies the building material in powder form in the form of a layer; and a drive mechanism (59) that moves the application element (61) across the building field in order to apply the layer of the building material. The drive mechanism (59) is configured such that for the application of layers it moves the application element (61) between a first end position on a first side of the building field and a second end position on an opposite second side of the building field on a circular path back and forth.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 30, 2010
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Hans Perret, Thomas Halder, Peter Keller, Thomas Mattes
  • Patent number: 7674422
    Abstract: A method and a system for forming a polymeric resin mold for molding plastic items, wherein the method includes: (a) using a rapid-prototyping process to create a polymeric resin shell having a configuration in the form of the mold; (b) introducing a reinforcing material into the shell; and (c) curing the shell. The system includes a rapid-prototyping apparatus that creates a plurality of the polymeric resin shells on a platform; a reinforcing material introduction apparatus that introduces a reinforcing material into each of the shells while the shells are on the platform to form a plurality of uncured molds on the platform; and a curing apparatus that cures the shells while they are on the platform.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: March 9, 2010
    Assignee: Align Technology, Inc.
    Inventor: Eric Kuo
  • Patent number: 7674107
    Abstract: A building container (25) for a device (1) for manufacturing a three-dimensional object by a layer wise solidification of a building material in powder form at positions in the respective layers that correspond to the object is provided. A support device (26) is provided that is arranged in the building container (25) such that it is vertically movable, wherein the support device (26) has an upper side that forms a building platform (78), on which the three-dimensional object is generated layer wise. Between a circumferential outer edge of the building platform (78) and a circumferential inside wall (79) of the building container (25) a gap (80) is formed and a seal (81) is provided that is provided circumferentially at the building platform (78) and closes the gap (80). The seal is made from a ring of a flat flexible material having an outer diameter, which in a flat state is larger than the inner diameter of the inside wall (79).
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 9, 2010
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Hans Perret, Thomas Halder