Patents Examined by Joseph S. Del Sole
  • Patent number: 11453171
    Abstract: A method of and an apparatus (1,29) for forming an object by means of additive manufacturing, the method comprising consecutively providing a plurality of layers (9) of building material (5, 6), and selectively curing one or more pixels (47) of each of the layers (9) during printing thereof. The method comprises a step of providing a first layer (9) of a first building material (5) onto a support surface (4, 30) or a preceding layer (9), and selectively exposing, in accordance with layer data, one or more pixels (47) in the first layer (9) to a dose of radiation (45, 45?). It further comprises the identifying, based on the layer data, of one or more contour pixels (47) in the first layer (9) that coincide with a contour of a featured region of a subsequent second layer (9), wherein the featured region of the second layer (9) is to be provided using a second building material (6) different from the first building material (5).
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: September 27, 2022
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Fabien Bernard Jacques Bruning, Herman Hendrikus Maalderink, Wijnand Christiaan Germs
  • Patent number: 11446876
    Abstract: A three-dimensional shaping apparatus includes a discharge portion discharging a shaping material, a shaping stage on which the shaping material discharged from the discharge portion is stacked, a temperature adjustment portion provided in the shaping stage to adjust a temperature of the shaping stage, and a control portion. The control portion stacks the shaping material on the shaping stage to shape and cure a three-dimensional shaping object while changing a relative position between the discharge portion and the shaping stage, and then, heats or cools a portion of the cured three-dimensional shaping object in contact with the shaping stage by controlling the temperature adjustment portion to adjust the temperature of the shaping stage.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: September 20, 2022
    Inventors: Yusuke Watanabe, Yuki Yamamoto, Kenta Anegawa
  • Patent number: 11446861
    Abstract: A method for producing a three-dimensional object comprising computing a sequence of back-projections describing the three-dimensional object to be formed from different orientation angles of the object, defining a sequence of patterns of light using the back-projections, and irradiating with each of the patterns of light at the respective corresponding orientation angle. According to the defined sequence, a photoresponsive material is capable of altering its material phase, upon irradiation by light, thereby creating a three-dimensional distribution of alterations within the photoresponsive medium which physically reproduces the three-dimensional object, thereby creating the three-dimensional object.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: September 20, 2022
    Assignee: Ecole PolyTechnique Federale de Lausanne (EPFL)
    Inventors: Damien Loterie, Paul Delrot, Christophe Moser
  • Patent number: 11446871
    Abstract: An apparatus for manufacturing an object from a light polymerizable resin includes (a) an carrier platform on which an object can be produced; (b) a resin cassette configured for carrying a light-polymerizable resin, said cassette including a light-transmissive window having a liquid inhibitor supply bed therein, said supply bed having an inlet and an outlet; (c) a light source positioned beneath said resin cassette and configured for projecting an enlarged image through said window; (d) a drive operatively associated with said resin cassette and said carrier platform; (e) a gas exchanger comprising a liquid side, a gas side, and an oxygen permeable barrier therebetween; said liquid side having an inlet and an outlet, with said supply bed inlet connected to said liquid side outlet, and said supply bed outlet connected to said liquid side inlet; (f) an oxygen carrying liquid in said liquid inhibitor supply bed and said gas exchanger liquid side; and (g) a pump operatively associated with said supply bed and sa
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 20, 2022
    Assignee: Carbon, Inc.
    Inventors: Bob E. Feller, R. Griffin Price
  • Patent number: 11446852
    Abstract: An apparatus including a three-dimensional (3D) drawing pen can permit a user to draw in free space to form a 3D object. The 3D drawing pen can include a housing, an actuator, and a nozzle assembly. The housing is configured to receive material therein and fit in a user's hand. The actuator is coupled to the housing and is configured to control a movement of the material. The nozzle assembly is configured to permit the material to be extruded to permit the user to form the three-dimensional object.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: September 20, 2022
    Assignee: WobbleWorks, Inc.
    Inventors: Peter Dilworth, Maxwell Bogue
  • Patent number: 11446853
    Abstract: A method of manufacturing a tire tread includes extruding a rubber strip and conveying the rubber strip through an opening of a roller die. The opening is defined by an upper die and a lower die, wherein the upper die and lower die contact the rubber strip and define a cross-section of the rubber strip as the rubber strip is conveyed through the opening. The method also includes adjusting a distance between the upper die and the lower die as the rubber strip is conveyed through the opening. The method further includes applying the rubber strip from the roller die onto a receptacle that rotates about a receptacle axis. The method also includes translating the roller die in a first direction parallel to the receptacle axis while applying the rubber strip, thereby forming a spiral of the rubber strip about the receptacle.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: September 20, 2022
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Jason J. Para, Zachary G. Lorenz
  • Patent number: 11440257
    Abstract: The present invention relates to a three-dimensional printing apparatus using a digital light processing (DLP) projector with a laser scanner, the apparatus comprising: a resin storage unit storing a photocurable resin; a DLP projector unit projecting light to the resin storage unit; a molding stage unit provided to be capable of being lifted and lowered in a vertical direction from a bottom of the resin storage unit; a laser scanner unit performing scanning of light for the resin storage unit; a scanner transfer unit allowing the laser scanner unit to move in an x-axis direction; an image processing unit dividing one sectional image of a sculpture into a core portion and a shell portion; and a controller receiving data on the core portion and the shell portion from the image processing unit, controlling the DLP projector, the laser scanner unit, the scanner transfer unit, and the molding stage unit.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: September 13, 2022
    Inventors: Doo Won Choi, Jun Seok Seo
  • Patent number: 11440098
    Abstract: A system for forming a three-dimensional (3D) article includes a powder dispenser, a fusing apparatus, and a controller. The plurality of energy beams include at least a first beam and a second beam. The controller is configured to operate the powder dispenser to dispense a layer of powder and to operate the fusing apparatus to selectively fuse the layer of powder. Operating the fusing apparatus includes operating the first beam to fuse a first hatch pattern over a first area of the layer of powder and operate at least the second beam to fuse a contour that bounds the hatch pattern. The contour is formed from N scans along the contour. N is an integer that is at least equal to one. N is determined by a lateral alignment uncertainty between at least two of the energy beams.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: September 13, 2022
    Assignee: LAYERWISE NV
    Inventors: Nachiketa Ray, Jan Plas
  • Patent number: 11440258
    Abstract: A device for coupling to a spindle of a machine tool includes a holder for coupling to the spindle of the machine tool, a conveyor element configured to convey a filament and rotatable about an axis of rotation, and a material processing unit. The material processing unit includes a gear which includes a force-receiving element configured to receive a mechanical force from the spindle and rotatable about an axis of rotation which extends substantially orthogonal to the axis of rotation of the conveyor element, and a force-delivery element configured to deliver to the conveyor element the mechanical force transmitted purely mechanically from the force-receiving element, with the force-receiving element being configured separately from the force-delivery element.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: September 13, 2022
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andreas Haase, Karl-Heinz Smolka
  • Patent number: 11433587
    Abstract: A method for producing components or profiles from at least one solidifiable plastic compound in an injection moulding facility, said method comprising stationary mould components and mould components which are movable with respect thereto. The method includes injection of solidifiable plastic compound into a channel formed in the movable mould components and, from there, via connections either in portions into one or more mould cavities. The channel is enclosed by at least one stationary, temperature-controlled mould component. A continuous channel compound strand is formed with attachment compound strands, which is transported away from the injection point with increasing cooling and solidification and increasing length, together with the filled mould cavities and mould cavity portions.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: September 6, 2022
    Inventor: Gottfried Steiner
  • Patent number: 11433612
    Abstract: A device for 3D printing and a control method thereof are provided. The device includes: a feeding pipe, where an opening extending along an axial direction of the feeding pipe is disposed on an outer wall of the feeding pipe; and a sleeve sleeved on the feeding pipe, where a discharge port in communication with the opening is disposed on an outer wall of the sleeve. Compared with a conventional design, the above device utilizes a sleeve to provide a discharge port and sleeves the sleeve and the feeding pipe together, thereby making the structure of the entire device more compact.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: September 6, 2022
    Inventor: Weidong Huang
  • Patent number: 11433613
    Abstract: An integrated additive manufacturing system includes: (a) at least one resin supply (41); (b) a plurality of additive manufacturing machines (43) on which parts may be produced, each of the additive manufacturing machines (43) operatively associated with the at least one resin supply (41); and (c) at least one peripheral machine (200, 48, 220) operatively associated with each of the additive manufacturing machines and the at least one resin supply.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: September 6, 2022
    Assignee: Carbon, Inc.
    Inventors: Joseph M. DeSimone, Roy Goldman, Steven Kenneth Pollack
  • Patent number: 11433595
    Abstract: According to various embodiments, a device for formfree printing a three-dimensional object in layers using at least one printing material includes: at least one printing head to output printing material in at least one printing material string; a printing platen to receive the at least one printing material string output by the at least one printing head; a rod-shaped heating device movably arranged over the printing platen; a heat controller configured to control the rod-shaped heating device to emit a heat irradiation directed to the printing platen to heat the at least one printing material string; at least one motor coupled to the rod-shaped heating device to move it over the printing platen; a motor controller configured to control the at least one motor to move the rod-shaped heating device over the printing platen to harden the at least one printing material string printed on the printing platen.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 6, 2022
    Assignees: Dow Silicones Corporation, innovatiQ GmbH + KG
    Inventors: Hans Peter Wolf, Michael Backer, Stephan Baumann, Florian Bautz
  • Patent number: 11433619
    Abstract: The present subject matter is directed towards a system and a method for selectively post-curing a three-dimensional (3D-printed) object to attain variable properties. The system comprises a selective post-curing chamber coupled to a computer in communication with a database for accessing a digital model or data concerning the 3D-printed object. The chamber comprises a movable light source assembly and a mounting platform for supporting at least one 3D-printed object thereon. The computer includes one or more executable instructions for selectively emitting a curing light onto the 3D-printed object along a predetermined curing toolpath based on the digital model. The curing of the 3D-printed object along the predetermined curing toolpath generates variable properties along different regions of the 3D-printed object.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: September 6, 2022
    Assignee: SprintRay Inc.
    Inventors: Amir Mansouri, Hossein Bassir, Aayush Patel, Huijian Tian
  • Patent number: 11433600
    Abstract: The invention shows a material provision device for a stereolithography apparatus to provide print material (16), in particular a photopolymer, to be cured, wherein the material provision device (10) surrounds an in particular limp material cartridge (12) which receives the print material (16) on all sides and (UV) light-proof, and the material cartridge (12) comprises an outlet (20) via which the print material (16) may be dispensed and which is received in a connection (43) or a spout in the material provision device (10) and is at least partially supported thereon or therein or seals against it.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: September 6, 2022
    Assignee: Ivoclar Vivadent AG
    Inventors: Johannes Lorünser, Walter Pokorny, Rudolf Jussel, Jörg Ebert
  • Patent number: 11426904
    Abstract: A method for forming a thermoplastic body having regions with varied material composition and/or porosity. Powder blends comprising a thermoplastic polymer, a sacrificial porogen and an inorganic reinforcement or filler are molded to form complementary parts with closely toleranced mating surfaces. The parts are formed discretely, assembled and compression molded to provide a unitary article that is free from discernible boundaries between the assembled parts. Each part in the assembly has differences in composition and/or porosity, and the assembly has accurate physical features throughout the sections of the formed article, without distortion and nonuniformities caused by variable compaction and densification rates in methods that involve compression molding powder blends in a single step.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: August 30, 2022
    Assignee: HAPPE SPINE LLC
    Inventors: Jeffery A Farris, Kevin Lee Brown, Douglas B. Snell, Ryan K. Roeder, Mark G. Messman
  • Patent number: 11425992
    Abstract: A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 ?m and 20 ?m.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 30, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Klaus Eimann, Gerald Görich
  • Patent number: 11426902
    Abstract: Glove stripping apparatuses for fully stripping a partially stripped elastomeric dip-moulded glove from a dip-moulding former comprises a gripper having first and second gripping members movable relative to each other, an abutment, an open space, and an actuation system. Also, production lines for producing elastomeric dip-moulded gloves, methods for fully stripping gloves from dip-moulding formers, and production line processes.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 30, 2022
    Inventors: Jonathan William Stollery, Kim Marie Stollery
  • Patent number: 11426927
    Abstract: Example implementations relate to different mixtures of build materials deliverable during a three dimensional (3D) print operation. In some examples, a 3D print apparatus may include a delivery hopper to deliver build material to a print zone of the 3D print apparatus and a plurality of build material hoppers to which the delivery hopper is connected for receipt of at least one of a corresponding plurality of build materials. A controller of the 3D print apparatus may direct that variable proportions of a first build material relative to a second build material are receivable by the delivery hopper from the plurality of build material hoppers during the 3D print operation, where different mixtures of the variable proportions of the first build material and the second build material are deliverable to the delivery hopper during the 3D print operation.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 30, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David R. Otis, Jr., Kevin E. Swier, Justin M. Roman, Wesley R. Schalk
  • Patent number: 11427722
    Abstract: Provided are compositions including a population of particulates that comprise an at least partially crystalline polycarbonate having an average cross-sectional dimension of from about 1 to about 200 ?m, and have a weight-average molecular weight, per polystyrene standards, of from about 17,000 to about 40,000 Daltons. The composition exhibits a zero-shear viscosity of less than about 104 Pa·s at the melting temperature of the partially crystalline polycarbonate. Related systems and methods for utilizing these compositions in additive manufacturing applications, including selective laser sintering (SLS) applications, are also disclosed. Also provided are additively-manufactured articles made with the disclosed compositions and according to the disclosed methods.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: August 30, 2022
    Inventors: Vandita Pai-Paranjape, Elena Miloskovska, Bruke Jofore, Raul Fernandez Cabello, Hao Gu