Flaw Detection Or Magnetic Clutch Patents (Class 252/62.52)
  • Patent number: 10883151
    Abstract: A solid catalyst is provided. The solid catalyst includes a core particle composed of activated carbon, lignin or iron oxide, and a plurality of hydroxyl groups and sulfonic acid groups formed on the surface of the core particle. A method for preparing a sugar is also provided. The method includes mixing organic acid and the disclosed solid catalyst to form a mixing solution, adding a cellulosic biomass to the mixing solution to proceed to a dissolution reaction, and adding water to the mixing solution to proceed to a hydrolysis reaction to obtain a hydrolysis product.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: January 5, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chiung-Fang Liu, Wei-Chun Hung, Hou-Peng Wan
  • Patent number: 10872717
    Abstract: A composite magnetic material includes a needle-like powder and a spherical powder. The needle-like powder includes a soft magnetic material and has an average minor-axis length of 100 nm or less and an average aspect ratio of 3.0 or more and 10.0 or less. The spherical powder includes a soft magnetic material and has an average major-axis length of 100 nm or less and an average aspect ratio of less than 3.0.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: December 22, 2020
    Assignee: TDK CORPORATION
    Inventors: Yu Yonezawa, Yoshihiro Shinkai
  • Patent number: 10774218
    Abstract: The present disclosure provides a coated iron particle, or reaction product thereof, comprising an iron particle and a thiol coating disposed on the iron particle. The present disclosure further provides compositions comprising a coated iron particle and a polymer or adhesion promoter. The present disclosure further provides components having a surface and a composition of the present disclosure disposed on the surface. Methods for passivating an iron particle can include introducing a passivation agent having one or more sulfur moieties into a solvent to form a passivation solution; and contacting an iron particle with the passivation solution to form a coated iron particle. Methods for passivating an iron particle can include introducing an iron particle into a solvent to form an iron particle solution; and contacting a passivation agent having one or more sulfur moieties with the iron particle solution to form a coated iron particle.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: September 15, 2020
    Assignee: THE BOEING COMPANY
    Inventor: Patrick J. Kinlen
  • Patent number: 10633070
    Abstract: A directional control system of a marine vessel includes a steering control member manually operated by a user and operationally connected to a direction-variation member acting on or in the water, such as at least one rudder blade or at least one outboard engine, the direction-variation member having an angular position that is controlled by the steering control member; and a locking system locking the free variation of the angular position of the direction-variation member, which can be activated and deactivated to allow the variation of angular position and carry out a directional change, the locking system including a hydraulic cylinder having a piston dividing the cylinder into two chambers, which are connected by a bypass circuit that can be opened and closed by a switching member.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: April 28, 2020
    Inventors: Pietro Gai, Marcella Gai, William P. Michel
  • Patent number: 10317332
    Abstract: The present invention relates to a system, apparatus or and method to quantify features of relatively small defects or anomalies on a selected surface. Such defects may be associated with localized corrosion, such as pitting, that takes place on the surface of a metal exposed to a metallic environment.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: June 11, 2019
    Assignee: Southwest Research Institute
    Inventors: Osvaldo Pensado, Pavan Kumar Shukla
  • Patent number: 10269477
    Abstract: A soft magnetic resin composition contains flat soft magnetic particles, a resin component, and a rheology control agent.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: April 23, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Akihito Matsutomi, Takashi Habu
  • Patent number: 10153405
    Abstract: A method for producing a fluorescent material is provided. The method includes preparing fluorescent material particles that contain an alkaline earth metal aluminate having a composition represented by (Sr1?x,Eux)4Al14O25, where x satisfies 0.05?x?0.4, and a part of Sr may be substituted by at least one element selected from the group consisting of Mg, Ca, Ba, and Zn; causing the prepared fluorescent material particles to come into contact with a liquid medium containing water; removing at least a portion of the contacted liquid medium to obtain purified fluorescent material particles; causing a phosphate compound to adhere to surfaces of the purified fluorescent material particles to obtain fluorescent material particles to which the phosphate compound is adhered; and heat treating the fluorescent material particles to which the phosphate compound is adhered at 500° C. to 700° C.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: December 11, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Kazushige Fujio, Masaki Kondo
  • Patent number: 9925592
    Abstract: The present invention is directed to a method for fabricating a gold nanoparticle, the method comprising the steps of contacting a gold ion with a protein, wherein the protein has an inner cavity that can accommodate the gold ion, separating the protein with the encapsulated gold ion(s) from non-encapsulated gold ions, contacting the protein-encapsulated gold ion with a first reductant to reduce the gold ion and form a gold nanocluster seed in the inner cavity of the protein, wherein the first reductant is a strong reductant, and contacting the gold nanocluster seed in the inner cavity of the protein with a second reductant to mineralize and grow the gold nanoparticle.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: March 27, 2018
    Assignee: Nanyang Technological University
    Inventors: Brendan Patrick Orner, Rongli Fan, Shu Wen Chew, Vee Vee Cheong
  • Patent number: 9605200
    Abstract: The deep red light-emitting magnesium fluorogermanate phosphor prepared by calcining a mixture comprising a fine magnesium oxide powder having a BET specific surface area in the range of 5-200 m2/g, a fluorine compound, a germanium compound and a manganese compound gives a light emission having a maximum peak of increased strength in the wavelength region of 640-680 nm upon excitation with a light having a wavelength of 400 nm.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: March 28, 2017
    Assignees: UBE MATERIAL INDUSTRIES, LTD., UBE INDUSTRIES, LTD.
    Inventors: Kouichi Fukuda, Rika Nogita, Jin Amagai, Toru Inagaki
  • Patent number: 9583670
    Abstract: A luminescence conversion element for wavelength conversion of primary electromagnetic radiation into secondary electromagnetic radiation includes first luminescent material particles that, when excited by the primary electromagnetic radiation, emit a first electromagnetic radiation, a peak wavelength of which is at least 515 nm to at most 550 nm of a green region of the electromagnetic spectrum; second luminescent material particles that, when excited by the primary electromagnetic radiation, emit a second electromagnetic radiation, a peak wavelength of which is at least 595 nm to at most 612 nm of a yellow-red region of the electromagnetic spectrum; and third luminescent material particles that, when excited by the primary electromagnetic radiation, emit a third electromagnetic radiation, a peak wavelength of which is at least 625 nm to at most 660 nm of a red region of the electromagnetic spectrum.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: February 28, 2017
    Assignee: OSRAM Opto Semiconductor GmbH
    Inventors: Rainer Butendeich, Hailing Cui, Reiner Windisch, Jörg Frischeisen, Stefan Lange
  • Patent number: 9449744
    Abstract: Disclosed is a magneto-rheological fluid composition which comprises magnetic particles, a fluid, a dispersant, a structure stabilizer and an anti-friction additive. Particularly, the magnetic particles include non-coated magnetic particles and polyvinyl butyral-coated magnetic particles at the weight ratio of about 1:1 to 4:1. Accordingly, dispersion stability and yield stress are improved substantially when magnetic field is applied to the magneto-rheological fluid.
    Type: Grant
    Filed: December 13, 2014
    Date of Patent: September 20, 2016
    Assignees: Hyundai Motor Company, Klueber Lubrication Korea Ltd.
    Inventors: Sung Uk Lee, Jong Min Park, Dae Yun Bae, Jin Young Lee
  • Patent number: 9390846
    Abstract: A magnetic fluid composition include a suspension of nano-particles including cross-crystallized multi-metal compounds dispersed in a solvent, the cross-crystallized multi-metal compounds including at least two or more metals having different valencies or oxidation states, the metals selected from the group consisting of a monovalent metal (Me+), a divalent metal (Me2+), a trivalent metal (Me3+), a quadrivalent metal (Me4+) and a rare earth metal. The magnetic fluid having a viscosity and surface tension that permits dispensing from an inkjet printer at a rate of at least 2.5 m/s, at a resolution of at least 600 dpi, supporting jetting pulse frequencies of at least 15 KHz per nozzle (enabling high speed inkjet printing applications of at least 0.6 m/sec per individual nozzle row per print head), and enabling uninterrupted, industrial level print output of magnetic ink character recognition (MICR) code lines suitable for high speed magnetic data scanning per established industry regulations (ANSI X9).
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: July 12, 2016
    Inventor: Thomas Villwock
  • Patent number: 9377054
    Abstract: A fluid seal for sealing a gap region for rolling elements rotationally connecting a shaft and an outer structure of a rotating assembly. In embodiments described, the fluid seal includes an inner capillary seal and an outer capillary seal radially and axially spaced from the inner capillary seal. The inner and outer capillary seals are formed along a passageway having an axial portion and a radial portion formed along capillary surfaces of a fluid seal structure and opposed transverse and upright surfaces. In embodiments disclosed, the fluid seal structure includes a seal ring and cap or a seal plate structure. In another embodiment, a flange portion of the shaft forms the fluid seal structure.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: June 28, 2016
    Assignee: Seagate Technology LLC
    Inventors: Timothy Edward Langlais, Daniel Dennis Dittmer, Troy M. Herndon
  • Patent number: 9341742
    Abstract: A method of forming colloidal photonic crystal structures, which diffract light to create color, which includes dispersing solid particles within a magnetic liquid media, and magnetically organizing the solid particles within the magnetic liquid media into colloidal photonic crystal structures.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 17, 2016
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yadong Yin, Le He
  • Patent number: 9157010
    Abstract: A magnetorheological fluid for use in magnetorheological ultrasmooth polishing of a substrate surface, comprising an aqueous carrier vehicle; a first amount of magnetic particles having a average diameter between about 1 micrometer and about 2 micrometers; and a second amount of abrasive particles having an average diameter between about <1 nanometer and about 15 nanometers. The fluid may further comprise a chemical stabilizer. Preferably the size of the magnetic particles is 2 to 3 orders of magnitude greater than the size of the abrasive particles. Preferably, the magnetic particles are spherical and include carbonyl iron, and preferably, the abrasive particles are selected from the group consisting of aluminum oxide, zirconium oxide, cerium oxide, silica, boron carbide, silicon carbide, natural diamond, synthetic diamond, and combinations thereof.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: October 13, 2015
    Assignee: Cabot Microelectronics Corporation
    Inventors: William Kordonski, Sergei Gorodkin, Eric Oswald
  • Patent number: 9093205
    Abstract: Thermally annealed superparamagnetic core shell nanoparticles of an iron oxide core and a silicon dioxide shell having high magnetic saturation are provided. A magnetic core of high magnetic moment obtained by compression sintering the thermally annealed superparamagnetic core shell nanoparticles is also provided. The magnetic core has little core loss due to hysteresis or eddy current flow.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: July 28, 2015
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Michael Paul Rowe
  • Patent number: 9086728
    Abstract: A fluidic actuator includes a chamber filled with a fluid, an element movable in relation to the chamber and in contact with the fluid, as well as a passage for circulating the fluid between the inside and the outside of the chamber in order to vary the amount of fluid in the chamber, thus causing movement of the movable element. The fluid is magnetorheological and the fluidic actuator includes a magnetic field generator arranged so as to generate, in the passage, a controlled magnetic field.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 21, 2015
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Samuel Roselier, Gwenael Changeon, Jose Lozada
  • Patent number: 8997951
    Abstract: An actively controlled colloidal damper having controllable damping characteristics. The damper has a cylinder (2); a piston (4) reciprocatably guided and supported by the cylinder (2) and forming a closed space (3) in cooperation with the cylinder (2); a porous body (8) having a large number of fine holes and received in the closed space (3); operation liquid (7) received in the closed space (3) together with the porous body (8), flowing into the fine holes in the porous body (8) when the pressure in the closed space (3) is increased, and flowing out of the fine holes when the pressure in the closed space (3) is decreased, and pressure regulation means, such as a servo value (6) and a pump device (10), for regulating the pressure in the closed space (3).
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: April 7, 2015
    Assignee: School Juridical Person of Fukuoka Kogyo Daigaku
    Inventor: Claudiu Valentin Suciu
  • Patent number: 8828263
    Abstract: A magnetorheological fluid comprising a mixture of soft and hard iron particles, an organic based carrier fluid, and optional additives such as anti-friction, anti-wear, or surfactants unexpectedly have improved durability when used in devices for control vibration and/or noise, for example, shock absorbers, elastomeric mounts, dampers, and the like.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: September 9, 2014
    Assignee: LORD Corporation
    Inventors: Teresa L. Forehand, Daniel E. Barber
  • Patent number: 8808567
    Abstract: A nanoparticle composition comprises a ferromagnetic or superparamagnetic metal nanoparticle, and a functionalized carbonaceous coating on a surface of the ferromagnetic or superparamagnetic metal nanoparticle. A magnetorheological fluid comprises the nanoparticle composition.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: August 19, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Terry R. Bussear, Michael H. Johnson
  • Publication number: 20130341145
    Abstract: A magneto-rheological fluid includes: a magnetic particle mixture; and a dispersion medium in which the magnetic particle mixture is dispersed. The magnetic particle mixture includes first magnetic particles and second magnetic particles. The first magnetic particles have an average particle size greater than or equal to 1 ?m and less than or equal to 50 ?m. The second magnetic particles have an average particle size greater than or equal to 20 nm and less than or equal to 200 nm, and have surfaces provided with a surface modified layer. A proportion of the second magnetic particles in the magnetic particle mixture is greater than or equal to 2 wt % and less than or equal to 10 wt %.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 26, 2013
    Applicant: Kurimoto, Ltd.
    Inventors: Yuya Ueshima, Shuichi Akaiwa, Junichi Noma
  • Patent number: 8591759
    Abstract: The present disclosure relates to magnetic nanocomposite materials, and processes for the production thereof. In particular, the present disclosure relates to nanocomposites comprising magnetic nanoparticles surrounded by a polymer, which is bonded to a biodegradable polymer.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: November 26, 2013
    Assignee: Chemgreen Innovation Inc.
    Inventors: Khashayar Ghandi, Paul Themens
  • Patent number: 8506837
    Abstract: A field-responsive fluid which enters a semi-solid state in the presence of an energy field is improved by use of a plurality of energy field responsive particles which form chains in response to the energy field. The particles can be (a) composite particles in which at least one field-responsive member having a first density is attached to at least one member having a second density that is lower than the first density, (b) shaped particles in which at least one field-responsive member has one or more inclusions, and (c) combinations thereof. The particles improve the field-responsive fluid by reducing density without eliminating field-responsive properties which afford utility. Further, a multi-phase base fluid including a mixture of two or more substances, at least two of which are immiscible, may be used.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: August 13, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Murat Ocalan, Huilin Tu, Nathan Wicks, Agathe Robisson, Dominique Guillot
  • Patent number: 8500083
    Abstract: This invention concerns a device for vibration damping of an object (1) moving along a trajectory arranged on a frame (7), whereas the object (1) involves spaces filled-in with magnetorheologic fluid which moves towards the object (1) and the device contents at least one control electromagnet (2,12) for achieving magnetorheologic fluid condition change to which a signal for vibration damping is fed from a control unit, whereas the control electromagnet/s (2,12) is/are arranged firmly on the frame on which the object's (1) trajectory is positioned. The control electromagnets (2,12) are arranged evenly with regard to the object's (1,5) trajectory (4,14), in case of need evenly to one another.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: August 6, 2013
    Assignee: Cvut V Praze, Fakulta Stronjni
    Inventors: Michael Valasek, Michal Mikulec
  • Patent number: 8486292
    Abstract: Magnetorheological formulations, processes for preparing the same and uses therefor, the formulations comprising: (a) an ionic liquid comprising anions and cations, and (b) dispersed magnetizable particles having a mean diameter of 0.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: July 16, 2013
    Assignee: BASF SE
    Inventors: Christoffer Kieburg, Jürgen Pfister, Claus Gabriel, Günter Oetter, Martin Laun, Rene Lochtman
  • Patent number: 8470193
    Abstract: Magnetorheological (MR) fluids are disclosed herein. An example of the MR fluid includes a carrier fluid, magnetic particles disposed in the carrier fluid, and non-magnetic particles disposed in the carrier fluid. The non-magnetic particles are particles of a shape memory alloy having an Austenite finish temperature (Af) that is lower than a temperature encountered in an application in which the MR fluid is used so that the shape memory alloy exhibits stress-induced superelasticity.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: June 25, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Alan L. Browne, Nancy L. Johnson, Peter Maxwell Sarosi, John C. Ulicny
  • Patent number: 8444280
    Abstract: There is provided a process for the preparation of a suspension of magnetic particles in a polar carrier liquid. The process includes the step of: coating the surface of the magnetic particles with an organic ligand having a hydrophilic chain prior to the suspension. For preparing a magnetically deformable mirror, the suspension of magnetic particles in a polar carrier liquid is coated with a reflective surface layer. A ferrofluid includes a suspension of magnetic particles coated with an organic ligand having a hydrophilic chain in a polar carrier liquid.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 21, 2013
    Assignee: Universite Laval
    Inventors: Ermanno Borra, Jean-Philippe Déry, Stéphanie Senkow, Anna Ritcey
  • Patent number: 8404139
    Abstract: The invention relates to a composite material formed by microparticles of magnetic material A and a conductive liquid B. The material is characterized in that the material A is chosen from magnetic compounds and magnetic alloys and is in the form of particles, the mean size of which is between 1 and 10 ?m, and in that the support fluid B is a conductive fluid chosen from metals, metal alloys and salts that are liquid at temperatures below the Curie temperature of the material A, or from mixtures thereof.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: March 26, 2013
    Assignees: Universite Pierre et Marie Curie, Centre National de la Recherche Scientifique
    Inventors: Emmanuelle Dubois, Jean Chevalet
  • Patent number: 8404140
    Abstract: The invention relates to a composite material formed by millimeter-scale particles of magnetic material A and a conductive liquid B. The material is characterized in that the material A is chosen from magnetic compounds and magnetic alloys and is in the form of particles, the mean size of which is between 0.1 and 2 mm, and in that the support fluid B is a conductive fluid chosen from metals, metal alloys and salts that are liquid at temperatures below the Curie temperature of the material A, or from mixtures thereof.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: March 26, 2013
    Assignees: Universite Pierre et Marie Curie, Centre National de la Recherche Scientifique
    Inventors: Emmanuelle Dubois, Jean Chevalet
  • Patent number: 8361341
    Abstract: A magnetorheological composition includes a mixture of a carrier medium and a particle component disposed in the carrier medium. The particle component includes a magnetic material and a nonmagnetic material. The nonmagnetic material is present in the particle component in an amount of from about 5 to about 95 parts by volume based on 100 parts by volume of the particle component. The particle component is present in the magnetorheological composition in an amount of from about 20 to about 80 parts by volume based on 100 parts by volume of the magnetorheological composition. The magnetorheological composition has an on-state yield stress at magnetic saturation of from about 0.1 to about 100 kPa.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: January 29, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: John C. Ulicny, Mark A. Golden, Keith S. Snavely, Prabhakar Marur
  • Patent number: 8241517
    Abstract: Magnetorheological materials having a supramolecular polymer gel as a component of the carrier are disclosed. Useful supramolecular polymers for gels include those having bipyridine or terpyridine ligands which can participate in metal coordination bonding. The magnetizable particles of magnetorheological materials can have supramolecular surfactant-polymer coatings.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: August 14, 2012
    Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, Reno
    Inventors: Alan Fuchs, Faramarz Gordaninejad, Hatice Gecol, Ben Hu, Beril Kavlicoglu, Joko Sutrisno
  • Patent number: 8226844
    Abstract: This invention is concerned with biocompatible magnetic nanocrystals highly soluble and dispersible in a physiological buffer, powder of biocompatible magnetic nanocrystals and nanocrystals bearing surface reactive N-hydroxysuccinimide ester moiety, and preparations thereof. The magnetic nanocrystals in powder form are highly soluble in a physiological buffer. The resultant aqueous colloidal solution presents long term stability in ambient conditions. Moreover, the carboxyl group on the surface of the magnetic nanocrystals can be converted to N-hydroxysuccinimide ester moiety in an organic solvent. The resultant powder of the magnetic nanocrystals carrying surface N-hydroxysuccinimide ester moiety is soluble and dispersible in an aqueous solution. Different types of biomolecules bearing amino group can covalently be attached to the magnetic nanocrystal simply by mixing them in aqueous solutions.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: July 24, 2012
    Assignee: Institute of Chemistry, Chinese Academy of Sciences
    Inventors: Mingyuan Gao, Fengqin Hu, Shujie Liu, Xianyong Lu
  • Publication number: 20120168669
    Abstract: A composite nanoparticle, for example a nanoparticle containing one or a plurality of cores embedded in another material. A composite nanoparticle can be formed by a one step process that includes: ejecting material from a bulk target material using physical energy source, with the bulk target material disposed in a liquid. Composite nanoparticles are formed by cooling at least a portion of the ejected material in the liquid. The composite fine particles may then be collected from the liquid. A product that includes composite fine particles may be formed with laser ablation, and ultrashort laser ablation may be utilized so as to preserve composite nanoparticle stoichiometry. For applications of the composite fine particles, optical properties and/or magnetic properties may be exploited for various applications.
    Type: Application
    Filed: January 3, 2011
    Publication date: July 5, 2012
    Applicant: IMRA AMERICA, INC
    Inventors: Yong CHE, Makoto Murakami, Wei Guo
  • Patent number: 8182712
    Abstract: Techniques for dyeing material are disclosed, including providing a magnetorheological fluid containing a coloring agent onto a contacting surface, applying a magnetic field to the magnetorheological fluid to increase viscosity of the magnetorheological fluid, and contacting the material with the magnetorheological fluid on the contacting surface to dye the material with the coloring agent.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: May 22, 2012
    Assignee: Empire Technology Development LLC
    Inventors: Maki Maekawa, Takahisa Kusuura
  • Publication number: 20120121066
    Abstract: A system is provided for the detection of contaminant particulates in closed containers, that system having a plurality of system components susceptible to degredation during the manufacture of container contents and filling of the closed containers, the system components susceptible to degradation comprising a radio opaque composition of matter; an x-ray source disposed proximate to a path of the closed container in a production line; an x-ray image intensifier whereby x-rays from the x-ray source are collected and an image is generated; a ccd camera whereby the x-ray image is digitized; a contaminated container rejection mechanism whereby closed containers having x-ray images with radio opaque portions are rejected as contaminated and removed from the production line.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 17, 2012
    Applicant: RUBBER FAB GASKET & MOLDING, INC.
    Inventor: Paul Robert DuPont
  • Patent number: 8120840
    Abstract: An electrorheological fluid is provided. The electrorheological fluid includes polarizing particles and a dispersion medium in which the polarizing particles are dispersed. The polarizing particles may include silica particles. The dispersion medium may include silicon oil. The silicon oil may be modified silicon oil including at least one functional group selected from the group consisting of a hydroxyl group (—OH group), an amine group (—NH2 group), a mercapto group (—SH group), and a carboxy group (—COOH group).
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 21, 2012
    Assignees: Inha-Industry Partnership Institute, Samsung Electronics Co., Ltd.
    Inventors: Hyoung-Jin Choi, Ying-Dan Liu, Bo-Mi Lee, Tae-Sang Park
  • Patent number: 8062541
    Abstract: A magnetorheological fluid comprising magnetic-responsive particles, a thickener, an ionic thixotropic additive, and a carrier fluid wherein the carrier fluid comprises a glycol-water mixture comprising at least 50 percent by weight of a glycol compound. The thickener is preferably fumed silica and the ionic thixotropic additive is preferably one of sodium nitrite, sodium chloride, sodium acetate, and sodium benzoate.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: November 22, 2011
    Assignee: Lord Corporation
    Inventors: Daniel E. Barber, Donald A. Nixon
  • Patent number: 8017031
    Abstract: This invention is concerned with biocompatible magnetic nanocrystals highly soluble and dispersible in a physiological buffer, powder of biocompatible magnetic nanocrystals and nanocrystals bearing surface reactive N-hydroxysuccinimide ester moiety, and preparations thereof. The magnetic nanocrystals in powder form are highly soluble in a physiological buffer. The resultant aqueous colloidal solution presents long term stability in ambient conditions. Moreover, the carboxyl group on the surface of the magnetic nanocrystals can be converted to N-hydroxysuccinimide ester moiety in an organic solvent. The resultant powder of the magnetic nanocrystals carrying surface N-hydroxysuccinimide ester moiety is soluble and dispersible in an aqueous solution. Different types of biomolecules bearing amino group can covalently be attached to the magnetic nanocrystal simply by mixing them in aqueous solutions.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: September 13, 2011
    Assignee: Institute of Chemistry, Chinese Academy of Sciences
    Inventors: Mingyuan Gao, Fengqin Hu, Shujie Liu, Xianyong Lu
  • Patent number: 7959822
    Abstract: A magnetorheological formulation which comprises at least one base oil, at least one magnetizable particle, a at least one dispersant and a at least one thixotropic agent is described.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: June 14, 2011
    Assignee: BASF SE
    Inventors: Guenter Oetter, Martin Laun, Juergen Pfister, Rene Lochtman, Gerald Lippert, Heiko Maas
  • Publication number: 20110121223
    Abstract: One embodiment includes a magnetorheological fluid having an on-state yield stress when a magnetic field is applied thereto and comprising a carrier fluid and magnetizable particles suspended in the carrier fluid, and wherein the suspension of the magnetizable particles in the carrier fluid remains essentially homogenous indefinitely in the absence of the magnetic field, and wherein the on-state yield stress of the magnetorheological fluid is greater than or equal to that of poly(alpha)olefin fluid containing the same concentration of magnetizable particles, and wherein the off-state viscosity of the magnetorheological fluid is between about 0.4 and about 12 Pascal-seconds at 40° C.
    Type: Application
    Filed: November 23, 2009
    Publication date: May 26, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: John C. Ulicny, Paul E. Krajewski, Mark A. Golden, Keith S. Snavely
  • Patent number: 7897060
    Abstract: The invention relates to magnetorheological materials comprising at least one non-magnetisable carrier medium and magnetisable particles contained therein, at least two magnetisable particles fractions being contained as particles and these being formed from non-spherical particles and from spherical particles.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: March 1, 2011
    Assignee: Fraunhofer-Gesselschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Holger Böse, Alexandra-Maria Trendler
  • Patent number: 7883636
    Abstract: Magnetorheological materials having a supramolecular polymer gel as a component of the carrier are disclosed. Useful supramolecular polymers for gels include those having bipyridine or terpyridine ligands which can participate in metal coordination bonding. The magnetizable particles of magnetorheological materials can have supramolecular surfactant-polymer coatings.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: February 8, 2011
    Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, Reno
    Inventors: Alan Fuchs, Faramarz Gordaninejad, Hatice Gecol, Ben Hu, Beril Kavlicoglu, Joko Sutrisno
  • Publication number: 20100224820
    Abstract: A magnetorheological composition includes a mixture of a carrier medium and a particle component disposed in the carrier medium. The particle component includes a magnetic material and a nonmagnetic material. The nonmagnetic material is present in the particle component in an amount of from about 5 to about 95 parts by volume based on 100 parts by volume of the particle component. The particle component is present in the magnetorheological composition in an amount of from about 20 to about 80 parts by volume based on 100 parts by volume of the magnetorheological composition. The magnetorheological composition has an on-state yield stress at magnetic saturation of from about 0.1 to about 100 kPa.
    Type: Application
    Filed: October 9, 2009
    Publication date: September 9, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATION, INC.
    Inventors: John C. Ulicny, Mark A. Golden, Keith S. Snavely, Prabhakar Marur
  • Patent number: 7731863
    Abstract: A magnetorheological fluid formulation comprising magnetizable particles dispersed in carrier fluid and a thixotropic agent wherein the thixotropic agent comprises a fluorocarbon grease.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: June 8, 2010
    Inventors: Vardarajan R. Iyengar, Sally M. Yurgelevic, Robert T. Foister
  • Patent number: 7708901
    Abstract: The invention relates to magnetorheological materials comprising at least one non-magnetisable carrier medium and magnetisable particles contained therein, in addition a combination of magnetic and non-magnetic inorganic materials and/or composite particles thereof being contained.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: May 4, 2010
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Holger Böse, Alexandra-Maria Trendler
  • Patent number: 7691285
    Abstract: The invention relates to a method for producing magnetic nanoparticles which are made of metal oxide-polymer composites and are provided with an increased magnetic mobility, among other things, due the high metal oxide content and the morphological structure thereof. High-pressure homogenization has proven to be a reliable technique for producing the inventive magnetic nanoparticles. According to said technique, the components metal oxide and polymer are processed in a carrier medium. Water is used in most cases at pressures ranging from 500 bar to 1200 bar while using great shearing forces. High pressure homogenization creates a colloidally stable magnetic particle population having a diameter ranging below 200 nm while also resulting in the produced magnetic nanoparticles being provided with greater magnetic moments than the metal oxide used as an initial material at low magnetic field strengths.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 6, 2010
    Assignee: Micromod Partikeltechnologie GmbH
    Inventors: Joachim Teller, Fritz Westphal, Cordula Gruettner
  • Publication number: 20100078586
    Abstract: A magnetorheological formulation which comprises at least one base oil, at least one magnetizable particle, a at least one dispersant and a at least one thixotropic agent is described.
    Type: Application
    Filed: June 29, 2006
    Publication date: April 1, 2010
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Guenter Oetter, Martin Laun, Juergen Pfister, Rene Lochtman, Gerald Lippert, Heiko Maas
  • Publication number: 20090289214
    Abstract: Magnetorheological formulations, processes for preparing the same and uses therefor, the formulations comprising: (a) an ionic liquid comprising anions and cations, and (b) dispersed magnetizable particles having a mean diameter of 0.
    Type: Application
    Filed: September 18, 2007
    Publication date: November 26, 2009
    Applicant: BASF SE
    Inventors: Christoffer Kieburg, Jürgen Pfister, Claus Gabriel, Günter Oetter, Martin Laun, Rene Lochtman
  • Patent number: 7608197
    Abstract: The present invention relates to magnetorheological elastomers comprising at least one non-magnetizable elastomeric carrier medium and magnetizable particles contained therein and also to the use thereof. In the case of MREs of this type, the mechanical properties, such as the rigidity modulus, can be changed reversibly by an applied magnetic field.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: October 27, 2009
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Holger Böse, Rene Röder
  • Patent number: 7591960
    Abstract: A preparation method for synthesis of oil-based magnetic fluid is disclosed. One end of a compound with a diamino group or an organic extraction reagent is connected with oil-based material while the other end is connected with surfactant having a carboxyl group that further reacts with magnetic metal oxide nanoparticles containing surfactant to form a stable useful oil-based magnetic fluid. The present invention is applied to process wastewater with oil, organic compounds or inorganic metal ions. Under the control of the magnetic field, the floating oil on the water surface is collected. The method can also be applied to the separation as well as collection of materials in the water such as organic compounds and metals.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: September 22, 2009
    Assignee: Atomic Energy Council-Institute of Nuclear Energy Research
    Inventor: Jen-Chieh Chung