Patents Examined by Mary F Theisen
  • Patent number: 11752692
    Abstract: This disclosure describes three-dimensional printing kits, methods, and systems for three-dimensional printing with phosphorescent pigments. In one example, a three-dimensional printing kit can include a powder bed material and a low-tint fusing agent. The powder bed material can include polymer particles and phosphorescent pigment particles mixed with the polymer particles. The low-tint fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the absorbed radiation energy to heat.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: September 12, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Emre Hiro Discekici, Alexey S. Kabalnov, Graciela Emma Negri Jimenez, Shannon Reuben Woodruff
  • Patent number: 11440247
    Abstract: Some examples include an additive manufacturing method for controlling electrostatic discharge of a build object. The method includes receiving data related to a build object, the data including conductivity data, selectively depositing a first portion of a printing agent onto a build material layer in a pattern of an object layer of a build object, the printing agent being electrically conductive at a predetermined dosage, the first portion deposited at less than the predetermined dosage, selectively depositing a second portion of the printing agent onto the build material layer at an area of the pattern, the printing agent at the area deposited at or above the predetermined dosage, and applying fusing energy to form the object layer, the object layer of the build object including a shell formed at the area and a core, the shell being electrically conductive and the core being electrically non-conductive.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 13, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Greg Scott Long, Phil D Matlock, Jake Wright, David L Erickson
  • Patent number: 10093065
    Abstract: The invention relates to a device and a method for 3D printing with accelerated method execution.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: October 9, 2018
    Assignee: VOXELJET AG
    Inventors: Ingo Ederer, Daniel Günther
  • Patent number: 10081913
    Abstract: A sheet manufacturing apparatus includes an impeller mill, a first sieve, a first belt, a rotary body, a second sieve, a second belt, and a heating roller. The impeller mill defibrates a raw material containing fiber and discharges a defibrated material. The first sieve screens the defibrated material by causing the defibrated material to pass through a first net. The defibrated material passing through the first sieve is deposited on the first belt to form a web. The rotary body has a protrusion radially protruded from a rotation center and divides the web by rotation to form a subdivided body. The second sieve refines the subdivided body by causing the subdivided body to pass through the second net to form a web. The refined subdivided body is deposited on the second belt to form a web. The heating roller heats the web from the second belt to form a sheet.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 25, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Naoko Omagari, Naotaka Higuchi, Masahide Nakamura
  • Patent number: 10052806
    Abstract: A manufacturing apparatus for liquid crystalline polyester resin pellets that is provided with: a die head with a discharge port for discharging melted liquid crystalline polyester resin supplied to the die head from a reactor through a valve; a cutter for cutting the resin discharged from the die head and solidified; and at least one perforated plate located downstream of the valve and upstream of the discharge port. The hole diameters of a plurality of die holes provided in the discharge port are 3 mm-6 mm and the average hole diameter in the perforated plate is 0.1-1.2 times the hole diameter of the die holes. A manufacturing method for liquid crystalline polyester resin pellets for cutting liquid crystalline polyester resin, which has been discharged from the die head of said apparatus via the discharge port so as to form groups of strands and solidified, into pellet form.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 21, 2018
    Inventors: Kunihiko Miyauchi, Toshio Kurematsu, Hiroki Hiraoka
  • Patent number: 10016734
    Abstract: The present invention discloses a method of producing potassium sorbate particles, comprising the steps of: (1) preparing a potassium sorbate solution; (2) spray drying; (3) spray forming; (4) indirectly drying with steam on a vibration fluidized bed; and (5) swing-type sifting; in step (3), a binder is obtained by spray drying after adding sorbitol to the potassium sorbate solution prepared in step (1), and the binder is mixed with the potassium sorbate powder obtained by spray drying in step (2) to undergo the spray forming process; based on weight ratio, the weight ratio of the sorbitol required to prepare the binder to the potassium sorbate solution required to prepare the binder is 0.05-0.1%:1. The beneficial effects of the present invention are: an appropriate binding effect of the powder particles, a good breaking effect and a good spheronization effect of the powder particles, and uniformity of granulation.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 10, 2018
    Inventors: Handong Wang, Gongnian Xiao, Guojun Wang, Lijun Chen, Anna Lu, Yuanzhe Chen, Conghui Huang
  • Patent number: 9855538
    Abstract: An ultrasonic apparatus for producing particles of a pharmaceutical agent or other material comprises a flow-through ultrasonic horn comprising an inlet, an outlet, and an interior channel that connects the inlet to the outlet for flow of a fluid therethrough. The ultrasonic horn is connectable to a transducer, and a crystallization tube is adjacent to the ultrasonic horn. The crystallization tube comprises an inlet port and outlet port for flow of an antisolvent therethrough, and it further includes a side access port. The outlet of the ultrasonic horn is inserted into the side access port so as to be in fluid communication with the crystallization tube.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: January 2, 2018
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Kenneth S. Suslick, Bradley W. Zeiger, Hyo Na Kim
  • Patent number: 9849645
    Abstract: Methods for manufacturing cushioning elements for sports apparel are described. A method is provided for manufacturing a cushioning element for sports apparel from randomly arranged particles of an expanded material. The method includes positioning a functional element within a mold and loading the mold with the particles of the expanded material, wherein the loading occurs through at least two openings within the mold and/or wherein the loading occurs between different movable parts of the mold.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 26, 2017
    Assignee: Adidas AG
    Inventors: Angus Wardlaw, Gerd Rainer Manz, Tru Huu Minh Le, Warren Freeman
  • Patent number: 9849634
    Abstract: A sheet manufacturing apparatus includes a mixing unit that mixes fibers and a composite in the atmosphere, a forming unit that deposits and heats a mixture mixed by the mixing unit to form a sheet; in which the composite is resin particles with at least a portion of a surface coated by inorganic fine particles, and an absolute value of an average charging amount of the composite is 40 ?C/g or higher.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 26, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Yoshihiro Ueno
  • Patent number: 9840927
    Abstract: A method for the manufacture of a component having an internal cavity and an array of pedestals extending into the cavity includes; defining external and core geometries of the component; using a powder-bed additive layer manufacturing method, building the component from a plurality of layers laid on a first-plane; and removing excess powder from the core in a first powder extraction direction along the first-plane. The core geometry is adapted for improved powder removal; including a main core passage, an array of pedestals extending into the passage and passage wall extending from the first-plane, one or more pedestals coinciding with the passage wall, having a cross-section in a plane parallel to the first-plane which is altered with respect to the cross-section of non-coinciding pedestals to extend a face of the pedestal which faces away from the powder extraction direction to intersect the passage wall at an obtuse angle.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: December 12, 2017
    Assignee: ROLLS-ROYCE plc
    Inventor: Matthew D Tucker
  • Patent number: 9840023
    Abstract: A sheet manufacturing apparatus of the present invention includes a defibrating unit that defibrates a material containing fibers into a defibrated material, and a deposition unit that deposits a defibrated material defibrated by the defibrating unit. The deposition unit includes a material supply port through which the defibrated material from the defibrating unit is supplied, a plurality of opening ports through which the supplied defibrated material passes, and a dwell area disposed between the material supply port and the opening ports so that the defibrated material temporarily dwells in the dwell area. The dwell area allows the defibrated material to temporarily dwell in the dwell area so that a variation amount of the defibrated material that passes through the opening ports becomes smaller than a variation amount of the defibrated material supplied through the material supply port.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: December 12, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Masahide Nakamura
  • Patent number: 9815977
    Abstract: The invention provides a process for preparing dispersion powders by spray drying of aqueous polymer dispersions of polymers of one or more ethylenically unsaturated monomers selected from the group encompassing vinyl esters, methacrylic esters, acrylic esters, olefins, dienes, vinylaromatics, and vinyl halides with a drying gas in a nozzle atomization dryer, characterized in that the aqueous polymer dispersion (feed), before being atomized, is preheated under pressure to a temperature of 100° C. to 200° C. and is atomized at this temperature, the pressure being set such that the aqueous phase of the polymer dispersion does not boil at the temperature selected.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: November 14, 2017
    Assignee: WACKER CHEMIE AG
    Inventor: Stefan Killat
  • Patent number: 9808381
    Abstract: A liquid absorbent structure is made by dry laying a fibrous web having incorporated therein a superabsorbent material, and applying an aqueous composite stabilizer to at least one surface of the web. The aqueous composite stabilizer imparts integrity to the resulting structure without substantially impairing the effectiveness of the superabsorbent material to absorb liquid while forming the absorbent structure without removing the water from aqueous composite stabilizer or drying out the absorbent structure. The absorbent composite absorbs the water from the aqueous composite stabilizer. The absorbent composite comprises about 70% by weight of a superabsorbent material.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: November 7, 2017
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David Arthur Fell, Steven Michael Hurley, Donald LeRoy Smith, Kendell Jean Williams, Nicholas Alan Kraft, Johanna Marie Buss, David John Paulson, Thomas Gerard Vercauteren, Sara Lynn Rosack, James George Van Himbergen
  • Patent number: 9802252
    Abstract: There is provided a method for controlling a powder compacting apparatus including: a die having a hollow; an upper punch and a floating lower punch; a first actuator that pushes down the upper punch; a second actuator that controls a floating load of the floating lower punch; and a stopper that defines a pressurization stop position of the floating lower punch. The powder compacting apparatus is configured such that the first actuator is operated to push down the upper punch to pressurize powder charged into the cavity, and the second actuator is controlled to pressurize the powder such that a load acting on the powder during pressurization becomes a prescribed floating load required to compact the powder. The method includes reducing the floating load in a stepwise manner after completion of the pressurization.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: October 31, 2017
    Inventor: Kazumichi Nakatani
  • Patent number: 9790642
    Abstract: A sheet manufacturing apparatus includes a screening unit having first openings for screening a defibrated material that is defibrating-processed; a refining unit that has second openings having sizes equal to or greater than sizes of the first openings and refines the defibrated material passing through the screening unit by causing the defibrated material to pass through the second openings; and a deposition unit on which the defibrated material passing through the refining unit is deposited.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: October 17, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Masahide Nakamura, Toshiaki Yamagami
  • Patent number: 9782935
    Abstract: A powder material for three-dimensional modeling includes a base particle and a coverage film including an organic material. The coverage film covers the base particle. The powder material is used for three dimensional modeling and when the coverage film is dissolved in a solvent to prepare a solution and the solution is formed into a coated film on a smooth surface, the coated film has a wetting tension of from 22 mN/m to 28 mN/m.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 10, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuyuki Yamashita, Yasuo Suzuki, Mitsuru Naruse, Nozomu Tamoto, Shigenori Yaguchi, Hitoshi Iwatsuki, Kazumi Ohtaki
  • Patent number: 9777415
    Abstract: The invention regards a forming box for use in dry-forming a mat of fibrous material, said forming box comprising a housing with an open bottom for providing direct access of the fibers onto an underlying forming wire and a vacuum box underneath said forming wire, at least one inlet for supplying fiber material into the inside of the housing, a number of spike rollers are provided in at least one row in the housing between the fiber inlet and the housing bottom, wherein a screen is provided adjacent said spike rollers, said screen comprising a plurality of slats, wherein each slat is rotatable.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: October 3, 2017
    Assignee: Formfiber Denmark ApS
    Inventor: Carsten Andersen
  • Patent number: 9770841
    Abstract: Embodiments of the present disclosure relate to a hot press and methods of using the hot press. In an embodiment, the hot press can include a pressing element including a flared body. In another embodiment, the hot press can include a compression surface. The compression surface can include a first layer including a monocrystalline material and a second layer including a polycrystalline material, wherein the monocrystalline material and the polycrystalline material include a same primary compound. In a further embodiment, a sample including more than one layer of ceramic oxide material can be hot pressed without a die.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: September 26, 2017
    Inventors: Aravind Mohanram, Brian P. Feldman, Yeshwanth Narendar, John D. Pietras, F. Michael Mahoney, Wesley R. Robbins
  • Patent number: 9771685
    Abstract: A sheet manufacturing apparatus includes a defibrating unit configures to defibrate a raw material containing fiber into a defibrated material; a screening unit configured to screen the defibrated material that is defibrated by the defibrating unit; a web forming unit configured to form a web on which the defibrated material screened by the screening unit is deposited; a rotary body that includes a protrusion unit for forming a subdivided body by dividing the web formed by the web forming unit; a deposition unit configures to deposit the defibrated material configuring the subdivided body; and a forming unit configured to form the sheet by pressurizing and heating the defibrated material deposited by the deposition unit.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: September 26, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Naoko Omagari, Naotaka Higuchi, Masahide Nakamura, Minoru Otagiri
  • Patent number: 9770848
    Abstract: The present invention relates to a method for manufacturing a low density inorganic powder insulator having a low density molded structure using expanded perlite without a binder and a mold machine for manufacturing the same, and more particularly, to a technology of uniformly dispersing perlite particles having a shape of irregular fragments of glass using expanded perlite to form a framework among synthetic silica to improve molding strength even at a low density, thereby reducing thermal conductivity (conduction and convection blocking) due to a low density and an increase in a specific surface area.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: September 26, 2017
    Inventors: Bum Gyu Baek, Dae Woo Nam