By Slinger Or Rotating Liquid Comminutor Patents (Class 425/8)
  • Patent number: 10233568
    Abstract: The present invention is directed toward an apparatus comprising a high speed rotating disk or bowl for nanofiber spinning from the rotational sheared thin film fibrillation at the enclosed serrations with the optimized stretching zone to produce the defects-free nanofibrous web and nanofibrous membrane comprising a nanofiber network with a number average nanofiber diameter less than 500 nm that yield the crystallinity higher than the polymer resin used in making the web.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: March 19, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Tao Huang, Thomas Patrick Daly, Zachary R Dilworth
  • Patent number: 9981439
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Systems and methods of heating the fiber producing device, before and during use, are also described herein.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: May 29, 2018
    Assignee: CLARCOR Inc.
    Inventors: Stephen Kay, Thomas D. Carr, Carlos Alberto Gomez Jimenez, Joe Moore
  • Patent number: 9719004
    Abstract: Provided is a group of rare-earth regenerator material particles having an average particle size of 0.01 to 3 mm, wherein the proportion of particles having a ratio of a long diameter to a short diameter of 2 or less is 90% or more by number, and the proportion of particles having a depressed portion having a length of 1/10 to ½ of a circumferential length on a particle surface is 30% or more by number. By forming the depressed portion on the surface of the regenerator material particles, it is possible to increase permeability of an operating medium gas and a contact surface area with the operating medium gas.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 1, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Katsuhiko Yamada, Keiichi Fuse
  • Patent number: 9409235
    Abstract: A granulator comprising a rotary atomizer for receiving molten material and projecting droplets of the molten material there from; and an impact surface disposed within the trajectory of the droplets and upon which the droplets impact, the impact surface being at a distance from the rotary atomizer and at an angle such that (i) all or substantially all of the droplets impact the impact surface, and (ii) a substantial portion of the droplets are not fully solidified prior to contact with the impact surface.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: August 9, 2016
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Dongsheng Xie, Bernard Washington, Steven Sanetsis
  • Patent number: 9333626
    Abstract: The present invention provides an apparatus for forming a shot that can prevent a loss of shot in the process of forming and sorting the shot balls and can collect dust in a cyclone type that can strongly suppress generation of dust.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: May 10, 2016
    Inventor: Kyoung jo Kim
  • Patent number: 9181635
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: November 10, 2015
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton
  • Patent number: 9102081
    Abstract: A method and an apparatus for generating particles are provided. The method may be a method for generating particles from a flowable medium, the method involving forming drops from the flowable medium, arranging the drops on a particle forming surface and solidifying the drops, thereby forming the particles. The apparatus may be an apparatus for generating particles from a flowable medium with a drop generator and a particle forming surface, the drop generator being formed to arrange drops on the particle forming surface and the particle forming surface may be adapted to contact the drops when the particles are being formed.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: August 11, 2015
    Assignee: Dr. Hielscher GmbH
    Inventors: Harald Hielscher, Thomas Hielscher, Holger Hielscher
  • Patent number: 9004893
    Abstract: A cotton candy machine including, a base having a switch, motor and heater, and a head The head includes a shaft removably coupled to the motor and a dish coupled to the shaft. A cover is disposed between the dish and a lid. The shaft, cover and lid are in a fixed relationship relative to each other. The cover and the lid form a cavity which is configured to receive hard candy which can be melted when said dish and cover combination are heated to a predetermined temperature. The lid has a lip formed on its top surface around an inner annular ring portion of the lid. The is lip configured to enable the hard candy, when melted, and the head is rotating at a predetermined speed, to form strands or threads which are collectable as cotton candy.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: April 14, 2015
    Assignee: Nostalgia Products Group LLC
    Inventors: Gregg Bond, Edward E. Boughton, III
  • Publication number: 20150093464
    Abstract: An improved rotary disc atomizer for use in, for example, spray dryers or congealers is disclosed. The rotary disc may be directly mounted to the shaft of a high-speed electrical motor. The high-speed electrical motor comprises a permanent magnet rotor and electro-magnetic bearings. The electro-magnetic bearings may be supported by one or more upper/lower bearing housings and used to enable frictionless support of the shaft/rotor and rotary disc. The atomizer system may further comprise a gas distributor enabled to dynamically adjust the velocity at which the gas leaves the radial vanes and meets with the atomized droplets.
    Type: Application
    Filed: December 5, 2014
    Publication date: April 2, 2015
    Inventor: Claude Bazergui
  • Publication number: 20140377391
    Abstract: An electro fiber pulling apparatus with spiral rod is provided for generating fibers or fiber web structure from a viscous liquid (such as polymer solutions, sol-gel or molten mass). The fiber pulling apparatus includes: a fiber generator with spiral rod; a fiber collector with counter electrodes spaced apart from the fiber generator with a certain distance; a liquid container for storing the viscous liquid for fiber generating; and a high voltage generator, wherein the electrodes of the high voltage generator are connected with the fiber generator and the fiber collector respectively.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventor: Paul Kaohing Lee
  • Publication number: 20140339717
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.
    Type: Application
    Filed: February 25, 2014
    Publication date: November 20, 2014
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Publication number: 20140331455
    Abstract: Electrospinning from a melt or solution by means of an electric field between a fibre source such as a spinneret or a bubble surface and a moving collector comprising a wire card of which the wires are electrically connected. The spinneret or melt or solution may be held at high potential and the wires earthed. The method produces an aligned nanofibre web that can be made into strands, yarns, cable or rope or non-woven fabrics such as stitch bonded and stitch knitted fabric.
    Type: Application
    Filed: August 29, 2012
    Publication date: November 13, 2014
    Inventors: George Stylios, Liang Luo
  • Publication number: 20140322515
    Abstract: In accordance with an exemplary embodiment, a method is provided for forming a micron, submicron and/or nanometer dimension polymeric fiber. The method includes providing a stationary deposit of a polymer. The method also includes contacting a surface of the polymer to impart sufficient force in order to decouple a portion of the polymer from the contact and to fling the portion of the polymer away from the contact and from the deposit of the polymer, thereby forming a micron, submicron and/or nano-meter dimension polymeric fiber.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 30, 2014
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Kevin Kit Parker, Mohammad Reza Badrossamay, Josue Adrian Goss
  • Patent number: 8858845
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: October 14, 2014
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Publication number: 20140217628
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 7, 2014
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Publication number: 20140217629
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 7, 2014
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Patent number: 8784706
    Abstract: A spherical tungsten carbide powder is characterized by that the material has a microhardness higher than 3600 kgf/mm2, and that the powder has an apparent density from 9.80 to 11.56 g/cm3. A method for the manufacture of a powder comprises the steps: a) providing a chamber comprising a rotatable crucible, b) adding material into said rotatable crucible, c) melting the material using a plasma arc discharge, d) rotating the crucible to atomize the molten material to form liquid droplets, with subsequent cooling of the droplets to obtain a powder, wherein the material added into said rotatable crucible is heated to a temperature above 40% of the melting temperature of the material before it enters the crucible. It is possible to reduce the current required for melting the stock. Heat losses are decreased, and the spherical powder obtained during atomization becomes more homogeneous in its composition and structure. The cost is reduced.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: July 22, 2014
    Assignee: MetaSphere Technology AB
    Inventors: Ruslan Alekseevich Shevchenko, Andrey Pavlovich Chukanov, Boris Vladimirovich Safronov, Yuri Gennadievich Nadezhdin, Alexander Yurievich Vakhrushin
  • Patent number: 8777599
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Embodiments described herein relate to multilayer fiber producing devices.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: July 15, 2014
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Patent number: 8778240
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that are composed of two or more members, that, when coupled together, define an internal cavity and a plurality of openings.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: July 15, 2014
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Publication number: 20140159262
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. To improve the formation of fibers, various devices and systems for controlling the micro-environment around the fiber producing device are described.
    Type: Application
    Filed: August 6, 2013
    Publication date: June 12, 2014
    Applicant: FIBERIO TECHNOLOGY CORPORATION
    Inventors: Stephen Kay, Yogesh Ner, Lenard Castellano
  • Publication number: 20140159263
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 12, 2014
    Inventors: Karen Lozano, Simon Padron, Javier Ortega
  • Patent number: 8709309
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that are capable of producing coaxial fibers.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: April 29, 2014
    Assignee: FibeRio Technologies Corporation
    Inventors: Ed Peno, Roger Lipton
  • Patent number: 8658067
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Embodiments described herein relate to apparatuses and methods for the deposition of fibers onto substrates.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 25, 2014
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Publication number: 20140042651
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Systems and methods of heating the fiber producing device, before and during use, are also described herein.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 13, 2014
    Applicant: FIBERIO TECHNOLOGY CORPORATION
    Inventors: Stephen Kay, Thomas D. Carr, Carlos Alberto Gomez Jimenez, Joe Moore
  • Patent number: 8647540
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Described herein are fiber producing devices that have various types of outlet elements coupled to the fiber producing device.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 11, 2014
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton, Stephen Kay
  • Patent number: 8647541
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. The apparatuses and methods described herein may be used to simultaneously create microfibers and nanofibers.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 11, 2014
    Assignee: FibeRio Technology Corporation
    Inventors: Ed Peno, Roger Lipton
  • Publication number: 20140035179
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, that include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Fiber producing devices with features that enhance fiber production and adaptability to different types of fiber are described.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 6, 2014
    Applicant: Fiberio Technology Corporation
    Inventors: Stephen Kay, Thomas D. Carr, Carlos Barocio, Joe Moore
  • Publication number: 20140035178
    Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Use of material transfer conduits allows the continuous production of fibers without the need to stop the process to refill the fiber producing device.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 6, 2014
    Applicant: FibeRio Technology Corporation
    Inventors: Stephen Kay, Carlos Barocio
  • Patent number: 8632326
    Abstract: A device for manufacturing finely powdered spherical magnesium includes a gas compressor that compresses argon gas, a gas heating unit that heats the compressed argon gas, and a tundish that receives molten magnesium. The device further includes a reactor having a nozzle injection unit that injects heated argon gas into the reactor, a recovery unit that recovers magnesium powder produced in the reactor, and a first gas cooler that cools the argon gas passing through the recovery unit. The device further includes a filtering unit that filters the cooled argon gas, a buffer tank that receives the filtered argon gas, and a compression blower that adiabatically compresses the argon gas. The device further includes a second gas cooler that cools the compressed argon gas, an adiabatic expansion duct that adiabatically expands the cooled argon gas, supplies the expanded argon gas to the reactor, and cools the magnesium powder.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 21, 2014
    Inventor: Kyu Yeub Yeon
  • Patent number: 8573959
    Abstract: The rotary spinning electrode of elongated shape, serving to carry polymer solution from reservoir of polymer solution or melt into electric field for spinning in devices for production of nanofibers through electrostatic spinning of polymer solutions or melts, including a pair of end faces (2, 3), which are arranged on the carrying mean (1), and between which are mounted the spinning members (41, 42, 43, 44, 45, 46), which are formed of a cord or wire (4). The spinning members (41, 42, 43, 44, 45, 46) are in a skew position to an axis (11) of rotation of the rotary spinning electrode.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: November 5, 2013
    Assignee: Elmarco S.R.O.
    Inventors: Frantisek Syba, Miroslav Maly
  • Publication number: 20130221553
    Abstract: A method for producing terylene fiber using polyester waste is disclosed. Firstly, dried polyester waste is sent into a screw extruder, then is melt and extruded to be polyester melt. Whereafter, the melt is filtrated twice to remove impurities. Then macromolecule polymerization reaction is taken place in the polyester melt to homogenize the molecular weight of macromoleclar polymer and to increase the viscosity of the polyester. Then the melt with increased viscosity is finely filtrated using melt precision filter. Whereafter, the melt is sent into a spinning box to execute metering spinning, then is cooled and solidified to be filaments. Finally, the filaments are wound according to various process requirements. The method can increase the quality of regenerated polyester spinning melt. The regenerated polyester melt has less impurities and homogenous viscosity after multiple filtrating.
    Type: Application
    Filed: September 29, 2010
    Publication date: August 29, 2013
    Inventor: Qiuhuo Chen
  • Publication number: 20130178949
    Abstract: Electrospun materials are fabricated using air-flow impedance technology, which results in the production of scaffolds in which some regions are dense with low porosity and others regions are less dense and more porous. The dense regions provide structural support for the scaffold while the porous regions permit entry of cells and other materials into the scaffold, e.g. when used for tissue engineering.
    Type: Application
    Filed: June 28, 2011
    Publication date: July 11, 2013
    Applicant: Virginia Commonwealth University
    Inventors: Gary L. Bowlin, Michael J. McClure, David G. Simpson, Hu Yang
  • Patent number: 8475692
    Abstract: Nanofibers are manufactured while preventing explosions from occurring due to solvent evaporation. An effusing unit (201) which effuses solution (300) into a space, a first charging unit (202) which electrically charges the solution (300) by applying an electric charge to the solution (300), a guiding unit (206) which forms an air channel for guiding the manufactured nanofibers (301), a gas flow generating unit (203) which generates, inside the guiding unit (206), gas flow for transporting the nanofibers, a diffusing unit (240) which diffusing the nanofibers (301) guided by the guiding unit (206), a collecting apparatus which electrically attracts and collects the nanofibers (301), and a drawing unit (102) which draws the gas flow together with the evaporated component evaporated from the solution (300) are included.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: July 2, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Yoshiaki Tominaga, Mikio Takezawa, Mitsuhiro Takahashi, Masahide Yokoyama
  • Publication number: 20130134613
    Abstract: A spherical tungsten carbide powder is characterized by that the material has a microhardness higher than 3600 kgf/mm2, and that the powder has an apparent density from 9.80 to 11.56 g/cm3. A method for the manufacture of a powder comprises the steps: a) providing a chamber comprising a rotatable crucible, b) adding material into said rotatable crucible, c) melting the material using a plasma arc discharge, d) rotating the crucible to atomize the molten material to form liquid droplets, with subsequent cooling of the droplets to obtain a powder, wherein the material added into said rotatable crucible is heated to a temperature above 40% of the melting temperature of the material before it enters the crucible. It is possible to reduce the current required for melting the stock. Heat losses are decreased, and the spherical powder obtained during atomization becomes more homogeneous in its composition and structure. The cost is reduced.
    Type: Application
    Filed: May 18, 2011
    Publication date: May 30, 2013
    Applicant: ECOTECH HOLDING AB
    Inventors: Ruslan Alekseevich Shevchenko, Andrey Pavlovich Chukanov, Boris Vladimirovich Safronov, Yuri Gennadievich Nadezhdin, Alexander Yurievich Vakhrushin
  • Publication number: 20130127080
    Abstract: The various embodiments herein provide a system and method for enhancing polymerization and nanoparticles production using a disc reactor. The system comprises of a rotating disc comprising a first surface and a second surface arranged longitudinally along a single axis of rotation, a shaft attached to the rotating disc, a ring provided across the first surface and the second surface of the rotating disc, at least one feed inlet for providing a feed solution, a fluid inlet for providing a heat transfer fluid, a fluid outlet for exiting the heat transfer fluid, a product collector for collecting the produced nanoparticles and a product outlet for exiting the produced nanoparticles. The feed solution flows from the first surface to the second surface of the rotating disc due to centrifugal forces and gets accumulated on the product collector and exits from the disc reactor through the product outlet.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Inventors: Reza Youssefi, Somayeh Mohammadi
  • Patent number: 8425810
    Abstract: A nanofiber production device produces nanofibers by stretching, in a space, a solution. The nanofiber production device includes: an effusing body which effuses the solution into the space by centrifugal force; a driving source which rotates the effusing body; a supplying electrode which is placed at a predetermined distance from the effusing body and supplies charge to the solution via the effusing body; a charging electrode to which a potential of reverse polarity to a polarity of the effusing body is applied, with the charging electrode being placed at a predetermined distance from the effusing body; and a charging power source which applies a predetermined voltage between the supplying electrode and the charging electrode.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: April 23, 2013
    Assignee: Panasonic Corporation
    Inventors: Kazunori Ishikawa, Takahiro Kurokawa, Hiroto Sumida, Masahide Yokoyama
  • Patent number: 8349229
    Abstract: A method for producing tables made of mixtures of a plurality of materials, and a method for producing a sulfurous fertilizer. A method for producing tablets made of mixtures of a plurality of materials, particularly urea mixtures, having the following steps:—producing a liquid melt of a first material,—adding at least one further material in solid or liquid form to the melt for producing a mixture,—output of drops of the mixture onto a steel belt by means of a drop former having a rotating, perforated outer drum,—solidification of the drops of the mixture on the steel belt into tablets, wherein the at least one additional material is mixed into the liquid melt in liquid form immediately before the drop former or into the liquid melt in solid. form upstream of a two-stage heated grinding and mixing unit.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 8, 2013
    Assignee: Sandvik Materials Technology Deutschland GmbH
    Inventors: Hans-Kurt Schromm, Albert Baeder, Matthias Kleinhans
  • Patent number: 8297959
    Abstract: Capsules and particles with at least one encapsulated and/or entrapped agent, such as therapeutic agent, imaging agents, and other constituents may be produced by electrohydrodynamic processes. More particularly, the agent encapsulated in a vehicle, capsule, particle, vector, or carrier may maximize treatment and/or imaging of malignant cancers while minimizing the adverse effects of treatment and/or imaging.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: October 30, 2012
    Assignee: Terapia Celular, LN, Inc.
    Inventors: Gustavo Larsen, Ruben Spretz, Raffet Velarde-Ortiz, David Vu, Luis Nunez
  • Patent number: 8291730
    Abstract: A novel spinner, for fiberizing hollow, irregularly-shaped insulating fibers is the subject matter of the present invention. The spinner is unique in a sense that its hole/slot pattern can be done by some standard drilling/milling techniques, which lower the cost of manufacturing. The invention uses two molten glasses (A and B) of different coefficients of thermal expansion, which are moved outwardly around the corresponding gas orifices by centrifugal force in a spinner pot. A stream of pressurized combustion gases is thrust through these central gas orifices to produce a hollow, non collapsible fiber of irregular shape. Molten glass A is introduced from the bottom of the spinner, and molten glass B is introduced above an uppermost flange and by means of centrifugal force, the two glasses A and B are forced upwardly and downwardly, respectively, into fiberizing centers.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: October 23, 2012
    Assignee: Certainteed Insulation Canada, Inc.
    Inventors: Joseph Skarzenski, Witold S. Czastkiewicz, Erkki Paivinen, Stan Banaszkiewicz
  • Publication number: 20120256355
    Abstract: The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
    Type: Application
    Filed: May 14, 2012
    Publication date: October 11, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Yong Min Kim, Kyoung Ryoul Ahn, Young Bin Sung, Rai Sang Jang
  • Patent number: 8221105
    Abstract: Systems for pelletizing hot asphaltenes are provided. Asphaltenic hydrocarbons can be dispersed to provide two or more asphaltenic particles. The asphaltenic hydrocarbons can be at a temperature of from about 175° C. to about 430° C. The asphaltenic particles can be contacted with a film of cooling medium. The film can have a thickness of from about 1 mm to about 500 mm. At least a portion of the asphaltenic particles can be solidified by transferring heat from the asphaltenic particles to the cooling medium to provide solid asphaltenic particles. The solid asphaltenic particles can be separated from at least a portion of the cooling medium.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: July 17, 2012
    Assignee: Kellogg Brown & Root LLC
    Inventors: Gary L. Behelfer, Maury Schlossman
  • Patent number: 8187509
    Abstract: A granulation process wherein a liquid is sprayed into a prilling tower (1) by means of a rotating prilling bucket (15) having a perforated side wall (15a), and the liquid jets exiting said perforated side wall are subjected to a vibrating action according to the axial direction (A-A) of the prilling tower (1), while the remaining liquid mass inside the bucket is kept substantially free from said vibrating action. A suitable apparatus is also disclosed, wherein the peripheral side wall (15a) of the prilling bucket (15) is connected to vibration imparting means and has a flexible connection with the frame (15b, 15c) of the bucket.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 29, 2012
    Assignee: Urea Casale S.A.
    Inventor: Enrico Rizzi
  • Publication number: 20120056342
    Abstract: An apparatus for forming particles from a liquid, including a rotor assembly having at least one surface sized and shaped so as to define at least one capillary. Each capillary has an inner region adjacent an axis of rotation of the rotor assembly, an outer region distal from the axis of rotation, and an edge adjacent the outer region. The rotor assembly is configured to be rotated at an angular velocity selected such that when the liquid is received in the inner region of the at least one capillary, the liquid will move from the inner region to the outer region, adopt an unsaturated condition on the at least one surface such that the liquid flows as a film along the at least one surface and does not continuously span the capillary, and, upon reaching the edge, separates from the at least one surface to form at least one particle.
    Type: Application
    Filed: March 16, 2010
    Publication date: March 8, 2012
    Inventor: Evan E. Koslow
  • Publication number: 20110285040
    Abstract: A method and an arrangement for producing spherical fuel cores and/or breeder material cores by dripping a pouring solution containing uranyl nitrate and a solution containing at least one auxiliary agent into an ammoniacal precipitation bath to form microspheres, aging, washing, drying, and thermally treating the microspheres.
    Type: Application
    Filed: November 23, 2009
    Publication date: November 24, 2011
    Applicant: NUKEM TECHNOLOGIES GMBH
    Inventors: Werner Heit, Martin Kadner, Georg Braehler, Karl Froschauer
  • Publication number: 20110278751
    Abstract: A nanofiber production device (100) produces nanofibers (301) by stretching, in space, a solution (300). The nanofiber production device (100) includes: an effusing body (115) which effuses the solution (300) into the space by centrifugal force; a driving source (117) which rotates the effusing body (115); a supplying electrode (124) which is placed at a predetermined distance from the effusing body (115) and supplies charge to the solution (300) via the effusing body (115); a charging electrode (121) to which a potential of reverse polarity to a polarity of the effusing body (115) is applied, the charging electrode (121) is placed at a predetermined distance from the effusing body (115); and a charging power source (122) which applies a predetermined voltage between the supplying electrode (124) and the charging electrode (121).
    Type: Application
    Filed: January 19, 2010
    Publication date: November 17, 2011
    Inventors: Kazunori Ishikawa, Takahiro Kurokawa, Hiroto Sumida, Masahide Yokoyama
  • Patent number: 8057203
    Abstract: Crystalline alumina particles are intimately mixed with a gaseous fuel, air and oxygen. The mixture is then ignited in a torch. Such blending of the powder with the combustible gas allows the alumina particles to be immediately heated to above their melting temperature and allows the particles to form into spheres. The spheres are then rapidly cooled to ambient temperature, providing high purity micron-sized polymorphic alumina spheres without the use of additives or special treatment.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: November 15, 2011
    Assignee: Gap Engineering LLC
    Inventors: Gerard E. Parker, Andrew P. Parker
  • Publication number: 20110274825
    Abstract: The present invention generally relates to a device for measuring characteristics of polymeric fluids (semi-dilute and concentrated polymer solutions and melts) in extremely strong elongational flows. In one embodiment, the present invention relates to a device for measuring characteristics of polymeric fluids (semi-dilute and concentrated polymer solutions and melts) in extremely strong elongational flows in spinning jets and/or electrified jets. In another embodiment, the present invention relates to a method for determining the elastic modulus and the relaxation time of a polymeric fluid. Also, the present invention enables one to determine and/or measure the primary parameters needed to describe a viscoelastic material.
    Type: Application
    Filed: November 10, 2008
    Publication date: November 10, 2011
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: Darrell Reneker, Tao Han, Alexander L. Yarin
  • Publication number: 20110180945
    Abstract: A granulator comprising a rotary atomiser for receiving molten material and projecting droplets of the molten material there from; and an impact surface disposed within the trajectory of the droplets and upon which the droplets impact, the impact surface being at a distance from the rotary atomiser and at an angle such that (i) all or substantially all of the droplets impact the impact surface, and (ii) a substantial portion of the droplets are not fully solidified prior to contact with the impact surface.
    Type: Application
    Filed: June 29, 2009
    Publication date: July 28, 2011
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Dongsheng XIE, Bernard Washington, Steven Sanetsis
  • Patent number: 7985058
    Abstract: A method and apparatus for making substantially uniformly sized liposomes and other small particles are provided. Droplets of a first liquid are ejected into a laminar flow of a second liquid, each droplet having a volume of from 0.97V to 1.03V, where V is the mean droplet volume and 1 fL?V?50 nL, wherein the first and second liquids are no more than sparingly soluble in one another, and wherein the first liquid contains a solute dissolved, dispersed, or suspended therein; and the first liquid is then removed to form a plurality of substantially uniformly sized particles. In one embodiment, the apparatus includes liquid inlet and outlet channels, a plurality of transverse liquid channels extending from the liquid inlet to the liquid outlet channel, a plurality of nozzles in liquid flow communication with the plurality of transverse liquid channels, one or more nozzle actuators coupled to the plurality of nozzles, and an evaporator coupled to the liquid outlet channel.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: July 26, 2011
    Inventor: Mark Gray
  • Publication number: 20110163469
    Abstract: The high-throughput fabrication of microparticles based on the double emulsion/solvent evaporation technique for screening and optimizing microparticle formulations for particular characteristics allows for the preparation of multiple microparticle formulations in parallel. The system involves the formation of an emulsion containing aqueous bubbles with the payload in an organic phase containing the polymer or polymer blend being used for the microparticles. This first emulsion is then transferred to a larger aqueous phase, and a second waterin-oil-in water emulsion is formed. The organic solvent is then removed, and the resulting particles are optionally washed and/or freeze dried. The resulting microparticles are similar or better than microparticles prepared using the traditional one formulation at a time approach. The high-throughput fabrication of microparticles is particularly useful in optimizing microparticles formulations for drug delivery.
    Type: Application
    Filed: December 13, 2006
    Publication date: July 7, 2011
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Steven Little, Daniel G. Anderson, Robert S. Langer