Utilizing Electrostatic Charge, Field, Force (e.g., Pinning, Etc.) Patents (Class 264/484)
  • Patent number: 10647023
    Abstract: A method for additively manufacturing a ceramic containing article includes selecting a ceramic precursor and a curable resin, determining a ratio of the ceramic precursor to the curable resin required to achieve a desired ceramic microstructure, mixing the ceramic precursor and the curable resin according to the determined ratio, and iteratively building an article by sequentially applying a layer of the mixture and curing the layer using an additive manufacturing machine.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: May 12, 2020
    Assignee: United Technologies Corporation
    Inventor: Wayde R. Schmidt
  • Patent number: 10611104
    Abstract: Methods of repairing a manufacturing defect in a molded polymeric composite structure are provided. A polymeric patch may optionally be disposed over a defect on a first contoured surface of the molded polymeric composite structure having the defect. A heating element that defines a second contoured surface complementary with at least a portion of the first contoured surface is applied over the polymeric patch. The heating element includes an electrically conductive layer that includes a fabric and a thermoset polymer. The polymeric patch is heated with the heating element, where the heating element has a substantially uniform temperature across the second contoured surface so that the polymeric patch fills the defect. Methods of making the customized heating elements and the customized heating elements are also provided.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 7, 2020
    Inventors: Xiaosong Huang, Hamid G. Kia
  • Patent number: 10144175
    Abstract: An additive manufacturing system and process for printing a three-dimensional part, which includes one or more electrophotography engines configured to develop layers of the three-dimensional part, a printing assembly configured to print the three-dimensional part from the developed layers, and a planarizer configured to conduct solvent-assisted planarizations on intermediate build surfaces of the three-dimensional part after one or more of the developed layers are printed.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: December 4, 2018
    Assignee: Evolve Additive Solutions, Inc.
    Inventor: J. Samuel Batchelder
  • Patent number: 10137634
    Abstract: A 3-D printer includes a development station positioned to electrostatically transfer layers of material to an intermediate transfer surface, and a transfer station adjacent the intermediate transfer surface. The transfer station is positioned to receive the layers as the intermediate transfer surface moves past the transfer station. Also, a platen is included that moves relative to the intermediate transfer surface. The intermediate transfer surface transfers a layer of the material to the platen each time the platen contacts one of the layers on the intermediate transfer surface at the transfer station to successively form a freestanding stack of the layers on the platen. A fusing station is positioned to apply light to each layer, after each layer is transferred from the transfer station to the platen. The fusing station selectively applies the light to sinter a portion of the material within the layer.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: November 27, 2018
    Assignee: Xerox Corporation
    Inventors: Erwin Ruiz, Paul J. McConville, Chu-heng Liu, James A. Winters, Jason M. LeFevre
  • Patent number: 9440380
    Abstract: A method for producing an intake module may include providing a housing and at least one intercooler arranged therein; forming at least two housing parts via injection molding from plastic; inserting at least one intercooler into at least one of the housing parts; wherein the housing parts, with at least one intercooler inserted therein, are welded together to form the housing; and wherein the intercooler has contact points to at least two of the housing parts.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: September 13, 2016
    Assignees: Mahle International GmbH, Behr GmbH & Co. KG
    Inventors: Veit Bruggesser, Juergen Stehlig, Andreas Eilemann, Hubert Pomin, Christian Saumweber
  • Patent number: 9356434
    Abstract: An ionization system includes a power supply and an ionizer. In a first operating state, properties of an output are set to fixed non-zero baseline levels, and in a second operating state, are set to neutralizing levels. The fixed baseline level is different than the neutralizing level for at least one of the properties. A downstream charge sensor measures an object charge. A controller switches the power supply between the first and second states during a sequence of alternating first and second time periods, during the first time period only, senses a current flow to the ionizer, during the second time period only, receives measured charge data from the sensor, during the second time period only, adjusts the neutralizing levels based on the charge data, and during the first or second time period, calculates an upstream object charge based on sensed current flow or determines a relative ionizer condition.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: May 31, 2016
    Inventors: John A. Gorczyca, Manuel C. Blanco, Steven J. Mandrachia
  • Patent number: 9289937
    Abstract: Provided are a filter fabrication method and the filter formed thereby. In this method, a three-dimensional graphene polymer complex filter can be easily fabricated. By forming various patterns at a surface of a collector, patterns can be simply formed at a surface of a filter. This provides advantages at control of pressure difference which can be one of the very important factors necessary for designing and fabricating a filter. Since the filter includes graphene particles homogeneously combined to the polymer nanofiber, the filter can represent a superior antibiosis.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 22, 2016
    Inventors: Yong Ju Yun, Han Young Yu, Yark Yeon Kim, Won Ick Jang
  • Publication number: 20150144320
    Abstract: A heat radiation sheet including: a heat radiation layer that is formed in the form of a nano-web having a plurality of pores by electrospinning a spinning solution that is obtained by mixing a polymer material and a solvent, or the polymer material, a heat conductive material, and the solvent; and an adhesive layer that is laminated on one surface or both surfaces of the heat radiation layer, and that is formed in the form of the nano-web by electrospinning an adhesive material that is obtained by an adhesive, the heat conductive material, and the solvent.
    Type: Application
    Filed: February 2, 2015
    Publication date: May 28, 2015
    Inventors: Seung Hoon LEE, Yong Sik JUNG, Yun Mi SO
  • Publication number: 20150101979
    Abstract: A surface treatment method is described herein where a stabilizing (e.g., crosslinking agent) is pre-mixed into a fluid stock comprising a processable polymer. The stock is processed to form products (e.g., nanofibers or films), followed by exposing the products to a stabilizing (e.g., crosslinking catalyst, such as acid vapors), which results in stabilization (e.g., polymer cross-linking on the surface of the product). In some embodiments, the morphology of the product is not changed upon crosslinking. Moreover in some instances, this method does not need strong acids and is performed with weak acids such as acetic acid which reduces environmental pollution. In addition to water soluble polymers (e.g., PVA), this method is applicable to proteins such as soy protein, and combinations of polymers and proteins in various embodiments.
    Type: Application
    Filed: April 10, 2013
    Publication date: April 16, 2015
    Inventors: Yong Lak Joo, Daehwan Cho, Kyoung Woo Kim
  • Publication number: 20150099186
    Abstract: Provided herein are silicon nanocomposite nanofibers and processes for preparing the same. In specific examples, provided herein are nanocomposite nanofibers comprising continuous silicon matrices and nanocomposite nanofibers comprising non-aggregated silicon domains.
    Type: Application
    Filed: February 28, 2013
    Publication date: April 9, 2015
    Inventors: Yong Lak Joo, Nathaniel S. Hansen, Daehwan Cho, Kyoung Woo Kim, Yong Seok Kim
  • Patent number: 8980158
    Abstract: A near field electrospinning system includes a spinneret that provides a plurality of fibers and a collector positioned relative to the plurality of spinnerets. The electrospinning system also includes a coagulant flowing along the collector. The coagulant is configured to receive a plurality of fibers from the spinneret(s) and move the plurality of fibers away from the spinneret(s). The electrospinning system also includes a roller configured to collect the plurality of fibers from the coagulant as a substantially untwisted bundle of continuous fibers.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: March 17, 2015
    Assignee: Physical Sciences, Inc.
    Inventor: John D. Lennhoff
  • Publication number: 20150072212
    Abstract: The separator of a nonaqueous electrolyte secondary battery is characterized by having a composite nanofiber fiber which is a nanosize fiber that contains two or more kinds of aqueous resins whose melting points are different.
    Type: Application
    Filed: January 25, 2013
    Publication date: March 12, 2015
    Inventors: Masateru Mikami, Toshifumi Nagino, Takao Kuromiya
  • Publication number: 20150070842
    Abstract: Provided is a waterproof sound-permitting sheet, including: a porous nanoweb that has a plurality of pores and that is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby shortening a manufacturing process and improving waterproofing performance and sound-permitting performance.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: Seung Hoon LEE, Jun Sik HWANG, Yong Sik JUNG
  • Publication number: 20150072008
    Abstract: The invention defines a nonwoven membrane for the controlled and sustained release of a therapeutic or cosmetic active agent in the area of the body to be treated. This nonwoven membrane comprises one single type of biocompatible electrospun nanofibers and microparticles of at least one therapeutic or cosmetic active agent which are entangled between the nanofibers, the active agent having a low water solubility.
    Type: Application
    Filed: March 27, 2013
    Publication date: March 12, 2015
    Inventors: Jose Antonio Tornero Garcia, Angel Montero Carcaboso, Joan Bertran I Llavina
  • Publication number: 20150071472
    Abstract: Provided is a waterproof sound-permitting sheet, including: a porous substrate having a plurality of pores; and a porous nanoweb, which is stacked on the porous substrate, has a plurality of pores, and is formed by electrospinning a polymer material to which a black or a different color pigment is added, thereby improving waterproofing performance and sound penetration performance by forming on a porous substrate, such as non-woven fabric, the porous web having the black or the different color by using the electrospinning method, and can shorten a production process by eliminating a pigment coating step by means of adding the pigment to the polymer material when manufacturing the porous nanoweb according to the electrospinning method.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: Seung Hoon LEE, Jun Sik HWANG, Yong Sik JUNG
  • Patent number: 8932041
    Abstract: A mold structure, a patterning method thereof and a method of fabricating an LCD device using the same are disclosed, which can realize a conformal contact by applying a voltage between a mold structure and a material layer being opposite to each other in an In-Plane Printing process, so as to prevent defective patterns, wherein the mold structure comprises a mold whose surface is provided with patterns; a backplane for supporting the mold; and a conductive film formed between the backplane and the mold.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Jin Wuk Kim
  • Publication number: 20150001768
    Abstract: Thermoplastic components may experience local damage, including cracks and decohesion of fiber reinforcements, among others. Such thermoplastics may be repaired by heating them to a suitable softening/melting temperature under pressure and maintaining them under pressure and at elevated temperature until the damage is healed. This may be done in-place using custom-fabricated, suitably-shaped die portions maintained under pressure by magnetic attraction. Various heating methods and die portion fabrication methods are described.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
  • Patent number: 8889573
    Abstract: The present invention relates to a fiber assembly obtained by electrifying a resin in a melted state by application of voltage between a supply-side electrode and a collection-side electrode so as to extend the resin into an ultrafine composite fiber by electrospinning, and accumulating the ultrafine composite fiber, wherein the ultrafine composite fiber includes at least two polymeric components and the ultrafine composite fiber includes at least one type of composite fiber selected from a sea-island structure composite fiber and a core-sheath structure composite fiber as viewed in fiber cross section, at least one selected from an island component and a core component has a volume specific resistance of 1015?·cm or less, and at least one selected from a sea component and a sheath component has a volume specific resistance exceeding 1015?·cm.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 18, 2014
    Assignees: Daiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.
    Inventor: Toshio Kamisasa
  • Patent number: 8852494
    Abstract: A method and apparatus for performing nanoimprint lithography. When an electric field is applied between the mold and the substrate, various forces can be generated among molds, substrates, and resists. The electrostatic force between the mold and the substrate can serve as an imprinting pressure to press the structured mold into the conformable resist. In addition, the electric field induces additional wetting forces (electrowetting or dielectrophoresis) in a liquid resist, which can assist the flow and filling of the liquid resist into fine structures.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 7, 2014
    Assignee: Princeton University
    Inventors: Stephen Y. Chou, Xiaogan Liang
  • Patent number: 8815129
    Abstract: In order to realize a device and a method each capable of forming a lens with high accuracy and low costs, a lens forming device of the present invention includes a metal mold, an insulating substrate, a stage, a power source, a switch, and a UV radiating device. Dielectric resin is supplied onto the insulating substrate and a transfer surface of the metal mold is pressed to the dielectric resin so as to transfer a lens shape to the dielectric resin. At that time, the power source applies a voltage on the metal mold to generate an electric field between the metal mold and the insulating substrate so that an electrostatic attraction causes the dielectric resin to be attracted toward the transfer surface of the metal mold while the top of the dielectric resin has a sharp cuspate shape. Consequently, bubbles are less likely to be invade between the transfer surface and the dielectric resin, allowing transferring a highly accurate lens shape to the dielectric resin.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: August 26, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takahiro Nakahashi, Hiroyuki Hanato, Kenji Hirano, Norimichi Shigemitsu
  • Publication number: 20140221495
    Abstract: A fiber having a polymeric matrix and a quarternary ammonium salt. The quarternary ammonium salt contains at least one aliphatic group and no aromatic groups, is not covalently incorporated into the polymeric matrix, and is present on both the surface and in the interior of the fiber. The fiber may be made by electrospinning a solution of the polymer and the quarternary ammonium salt.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 7, 2014
    Applicant: The Government of the United States of America, as reperesented by the Secretary of the Navy
    Inventors: Peter N. Coneski, Jeffrey G. Lundin, Preston A. Fulmer, James H. Wynne
  • Patent number: 8778254
    Abstract: A method and apparatus provided for the production of fine fibers by electrospinning fibers by applying an electrical field between a primary electrode and a counter electrode (5) spaced apart from the primary electrode and extending generally parallel thereto wherein at least an operative surface of the primary electrode is coated with a polymer solution (3) and an electric field of sufficient magnitude is generated between the primary electrode and counter electrode to cause the formation of fine fibers (9) in the space between the electrodes. The operative surface of the primary electrode that is coated with polymer solution is made up of appropriate portions of the surfaces of a multitude of operatively semi-submerged, loose (unattached) elements (1, 11, 17, 21) supported on the bottom of a trough (2) or tray or another support member or members (12, 18, 22).
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: July 15, 2014
    Assignee: Stellenbosch University
    Inventors: Anton Eugene Smit, Ronald Douglas Sanderson
  • Patent number: 8747093
    Abstract: A spinneret for producing nanofibers from a viscous liquid using electrostatic spinning in an electric field is described. The spinneret includes one or more narrow annular bodies radially centered about and axially spaced along a central axis. The annular bodies may be discs, rings, or coils.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: June 10, 2014
    Assignee: Deakin University
    Inventors: Tong Lin, Xungai Wang, Xin Wang, Haitao Niu
  • Patent number: 8740600
    Abstract: An apparatus for charging particles in non-conductive liquids, so they agglomerate and can be removed by filtering, is comprised of a housing which contains a non-conductive insert having a multiplicity of channels. The incoming stream is divided into two halves, each of which is flowed through a set of charging channels which contain electrodes, preferably metal brush-like electrodes. One set of electrodes is charged to a high positive voltage; the other set is charged to a high negative voltage. The liquid streams are then merged and flowed trough a set of mixing channels, along the path of which are one or more reversals in flow direction. The mixing channel path length is substantially longer than the charging channel path length.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: June 3, 2014
    Assignee: Isopur Technologies, Inc.
    Inventor: Raymond K. Gomes
  • Patent number: 8721313
    Abstract: An apparatus for a production of two-dimensional or three-dimensional fibrous materials of microfibers or nanofibers containing a set of spinning metal nozzles connected to a first potential, a set of electrodes of a collector facing the set of the nozzles, arranged at regular spacing and connected to a second potential, and a collecting plate or a collecting cylinder for collecting microfibers or nanofibers settled between couples of adjacent electrodes of the collector.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: May 13, 2014
    Assignee: Contipro Biotech s.r.o.
    Inventors: Marek Pokorny, Vladimir Velebny
  • Publication number: 20140128345
    Abstract: Described are drug delivery systems incorporating electrospun fibers that comprise and deliver physicochemically diverse drug compounds. Such fibers provide significant advantages in drug agent release, such as adaptability for solid dosage delivery to mucosal tissues. This is in addition to allowing for controlled drug release. Systems and methods for large-scale electrospinning productivity are described, including novel microarchitectures allowing for variable pharmacokinetics in drug release.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Inventors: Kim A. Woodrow, Cameron Ball, Anna Blakney, Emily Krogstad, Huarong Nie
  • Publication number: 20140128975
    Abstract: An artifact for osseous repair includes a bioresorbable porous cage defining an internal space, and a biocompatible composite which includes a plurality of mineralized collagen-mimic fibrils filled in the internal space of the bioresorbable porous cage.
    Type: Application
    Filed: September 13, 2013
    Publication date: May 8, 2014
    Applicant: Far Eastern New Century Corporation
    Inventors: Jo-Ling Wang, Hui-Wan CHEN
  • Publication number: 20140061977
    Abstract: A device for producing a three dimensional object from a powdery material by solidifying the powdery material through the application of energy includes a working surface, an application device for applying the powdery material onto the working surface, and a solidifying device for solidifying the powdery material applied onto the working surface. The application device can apply predefined, locally different amounts of powdery material and includes a transfer device, which can be magnetized and/or electrostatically charged and discharged, as well as a magnetizing and/or charging device.
    Type: Application
    Filed: July 23, 2013
    Publication date: March 6, 2014
    Applicant: EADS Deutschland GmbH
    Inventors: Juergen SILVANUS, Katja SCHMIDTKE
  • Patent number: 8636942
    Abstract: A process for production of a nonwoven fabric, which comprises a step wherein a thermoplastic polymer is dissolved in a mixed solvent composed of a volatile good solvent and a volatile poor solvent, a step wherein the resulting solution is spun by an electrospinning method and a step wherein a nonwoven fabric accumulated on a collecting sheet is obtained, is employed to provide a nonwoven fabric having a surface area sufficiently large as a matrix for cell culturing in the field of regenerative medicine, with large gaps between filaments and a low apparent density suitable for cell culturing.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: January 28, 2014
    Assignee: Teijin Limited
    Inventors: Shinya Komura, Takanori Miyoshi, Yoshihiko Sumi, Hiroyoshi Minematsu
  • Publication number: 20140004159
    Abstract: A composition is provided that includes a plurality of layered nanofiber scaffolds. A first nanofiber scaffold can include microwells configured to be seeded with one or more relevant cells, a skin tissue, or combinations thereof. Furthermore, the first nanofiber scaffold can comprise uniaxially aligned nanofibers between the microwells and random nanofibers on the microwells. The composite can also include a second nanofiber scaffold that comprises radially-aligned nanofibers. Further provided are methods for making such a composition as well as methods for treating damaged skin that include applying an effective amount of the composition to a site of damaged skin on a subject.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Jingwei Xie, Bing Ma
  • Patent number: 8591781
    Abstract: In a method of producing a molded product, fiber such as carbon fiber is supplied to a robot delivery head where it is cut into shorter lengths and delivered to a molding tool in a desired orientation and in a desired number of layers to achieve a desired thickness and strength. Resin is then applied to the aligned fibers and cured to form the product. Alignment or substantial alignment of fiber is maintained by applying vacuum to the mold, by electrostatic means, or by coating the fiber with resin prior to application to the molding tool and heating the molding tool surface, or by coating or impregnating the fiber with a ferric powder and magnetizing the molding tool, or by applying a mist layer of epoxy in front of the shortened lengths of fibers. Fiber lengths and deposition rates are varied as required. The method facilitates fully automated production reducing process time and component costs. The invention also comprises a corresponding molded product.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: November 26, 2013
    Assignee: Bentley Motors Limited
    Inventor: Antony Dodworth
  • Patent number: 8580181
    Abstract: Disclosed are methods of forming three dimensional arrays of aligned nanofibers in an open, loose structure of any desired depth. The arrays are formed according to an electrospinning process utilizing two parallel conducting plates to align the fibers and rotating tracks to distribute the fibers throughout the array. Arrays can be used as formed, for instance in tissue engineering applications as three dimensional scaffolding constructs. As-formed arrays can be combined with other materials to form a composite 3-D structure. For instance, composite polymeric materials can be electrospun to form composite nanofibers within the array. Multiple polymeric materials can be electrospun at different areas of the array to form a composite array including materially different nanofibers throughout the array. The arrays can be loaded with other fibrous or non-fibrous materials to form a composite array. Arrays can also be rolled to form a uniaxial fiber bundle.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: November 12, 2013
    Inventors: Vince Beachley, Xuejun Wen
  • Publication number: 20130266620
    Abstract: The present invention aims to provide a medical material which is safe for the live body, has high biocompatibility and is useful for promotion of cell differentiation. The present invention produces a medical material for promoting cell differentiation, which contains polyamino acid as a main component, wherein the polyamino acid contains at least one kind of amino acid residue selected from the group consisting of an alanine residue, a valine residue, a leucine residue, an isoleucine residue, a phenylalanine residue, a glycine residue, a glutamine residue, an aspartic acid residue optionally containing a protecting group in the side chain, a tyrosine residue optionally containing a protecting group in the side chain, a tryptophan residue optionally containing a protecting group in the side chain, a lysine residue optionally containing a protecting group in the side chain, and a glutamic acid residue optionally containing a protecting group in the side chain.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 10, 2013
    Inventors: Manabu Kitazawa, Satoru Ohashi, Yoko Masuzawa, Kousaku Ohkawa, Yasuhiko Tabata
  • Patent number: 8551390
    Abstract: Embodiments of the present disclosure provide electrospinning devices, methods of use, uncompressed fibrous mesh, and the like, are disclosed.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: October 8, 2013
    Assignee: The UAB Foundation
    Inventors: Ho-Wook Jun, Ajay Tambralli, Bryan Adam Blakeney, Derrick Dean
  • Patent number: 8486348
    Abstract: A device is made by forming sacrificial fibers on a substrate mold. The fibers and mold are covered with a first material. The substrate mold is removed, and the covered fibers are then removed to form channels in the first material.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 16, 2013
    Assignee: Cornell University
    Inventors: Leon M. Bellan, Harold G. Craighead, Elizabeth A. Strychalski
  • Publication number: 20130174969
    Abstract: A method of manufacturing a three-dimensional preform for a structural component made of a fiber composite material includes simultaneously laying a plurality of dry fibers on a workpiece carrier having a contour that corresponds to an intended three-dimensional shape of the perform and then fixing the fibers on an edge of the workpiece carrier. These steps are repeated in accordance with a predetermined fiber laying pattern until the three-dimensional perform has been completely formed. In addition, between each repetition, the fibers are cut beyond a segment of the fibers fixed on the edge of the workpiece carrier. After the three-dimensional preform has been completely formed, the three-dimensional preform is removed from the workpiece carrier and transferred to a subsequent manufacturing step. An apparatus configured to perform this method is also disclosed.
    Type: Application
    Filed: April 15, 2011
    Publication date: July 11, 2013
    Inventors: Ingo Karb, Rainer Kehrle, Volker Witzel
  • Publication number: 20130168904
    Abstract: A core is moved within a surrounding nanotube shell by modulating the magnitude of the dispersion force therebetween along successive portions of the nanotube shell.
    Type: Application
    Filed: November 23, 2012
    Publication date: July 4, 2013
    Inventor: Fabrizio Pinto
  • Patent number: 8454883
    Abstract: A nanocomposite material apparatus suitable for fabricating a nanocomposite material from different materials is provided. The nanocomposite material apparatus includes an acceleration inner tube and a collection outer tube. The acceleration inner tube disposed along a rotation axis has a top surface, a bottom surface and an outer peripheral surface. Pipes for accelerating different materials is distributed within the acceleration inner tube. Each pipe includes an inlet, an outlet opening at the outer peripheral surface and a spiral trench connecting the inlet and the outlet. Nano materials having electricity are emitted from the corresponding outlets by accelerating different materials within the corresponding pipes.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: June 4, 2013
    Assignee: Chi Lin Technology Co., Ltd.
    Inventors: Chuh-Yung Chen, Cheng-Chien Wang, I-Han Chen, Chia-Chun Liao, Szu-Wen Chen, Chun-Liang Lee
  • Publication number: 20130115169
    Abstract: The present technology provides synthesized particles that mimic key structural and functional features of red blood cells. Such RBC-mimicking particles possess the ability to carry oxygen (and carbon dioxide) and flow through capillaries smaller than their own diameter. Further, such particles can also deliver drugs and imaging agents. These particles provide a new paradigm for the design of drug delivery and imaging carriers since they combine the functionality of natural RBCs with the broad applicability and versatility of synthetic drug delivery particles. Further, such particles can be used for detoxification and other biomedical applications.
    Type: Application
    Filed: December 3, 2010
    Publication date: May 9, 2013
    Inventors: Joerg Lahann, Samir Mitragotri, Srijanani Bhaskar, Nishit Doshi, Alisar A. Zahr
  • Publication number: 20130112618
    Abstract: Filtration membrane comprising polymeric nanofibers and/or microfibers attaching dendrimer component presenting reactive sites selective for chemicals to be filtered, and related nanofibers and microfibers, composite materials, compositions, methods and system.
    Type: Application
    Filed: August 8, 2012
    Publication date: May 9, 2013
    Inventors: Mamadou S. DIALLO, William A. GODDARD, III, Seong-Jik PARK, Manki CHO
  • Patent number: 8414821
    Abstract: A method for electrostatic spinning of thermoplastic polymers for obtaining nano and microfibers, is introduced. The method if characterized by the following steps: solving the thermoplastic polymer in a corresponding solvent; adding a thermoplastic elastomer (TPE) to this solution, and introducing the solution into an electric field and spinning under the effect of the electric field to nano and microfibers.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: April 9, 2013
    Assignee: Mann + Hummel GmbH
    Inventors: Nico Behrendt, Stefan Orendt
  • Publication number: 20130082425
    Abstract: The present invention relates to metal coated nano-fibres obtained by a process that includes electrospinning and to the use of said metal coated nano-fibres. The process is characterised in that a polymer nano-fibre with functional groups providing the binding ability to a reducing reagent is prepared by electrospinning at ambient conditions. Then this is contacted with a reducing agent, thereby opening the epoxy ring on the surface of polymer nano-fibre and replacing with the reducing agent and the reducing agent modified film is reacted with metal solution in alkaline media. Finally the electrospun mat is treated with water to open the epoxy rings in the structure and crosslinking the chains to provide integrity.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 4, 2013
  • Publication number: 20130075960
    Abstract: Manufacturing method and apparatus for a hollow molded part manufactured by spraying a molding material into a mold utilizing the principle of electrostatic coating. The method comprises a spraying step for forming a resin layer by spraying liquid resin with a differential electrical potential relative to the mold into a mold capable of separation into two or more parts from a spray fixture inserted from an opening portion in said mold; a solidifying step for solidifying the resin layer; a mold parting step for opening the mold relative to the spray fixture and parting the solidified resin layer from the mold while it is held in the spray fixture; and a removal step for removing from the spray fixture the resin layer held in the spray fixture.
    Type: Application
    Filed: July 19, 2011
    Publication date: March 28, 2013
    Inventor: Harumasa Hatakeyama
  • Patent number: 8377365
    Abstract: The system and method for stent manufacture includes a method of supercritical stent manufacture including mixing a polymer and a supercritical fluid to form a supercritical mixture; electrically charging a mold to a first polarity, the mold having a mold wall defining a mold plenum; discharging the supercritical mixture through a nozzle; electrically charging the supercritical mixture to a second polarity opposite the first polarity; repeatedly directing the charged supercritical mixture into the mold plenum to form a plurality of polymer layers on the mold wall, the plurality of polymer layers having a predetermined thickness; and separating the plurality of polymer layers from the mold wall.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: February 19, 2013
    Assignee: Medtronic Vascular, Inc.
    Inventor: Julie Trudel
  • Patent number: 8366986
    Abstract: Electrostatic fine fiber generation equipment such as for forming nano-fibers from polymer solution is provided. The fine fiber generation equipment includes a strand that may take the form of a stainless steel beaded chain. The beaded chain can be an endless chain entrained upon two guide wheels and driven about an endless path perpendicularly relative to the collection media.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 5, 2013
    Assignee: CLARCOR Inc.
    Inventors: Thomas B. Green, Scotty L. King, Lei Li
  • Publication number: 20130011559
    Abstract: There is disclosed a process for manufacturing an in-mould labelled article, the process comprising the steps of: placing a label comprising a polyvinylidene chloride coated film (15) into a mould for injection moulding, thermoforming, or blow moulding; holding the label in position; injecting a polymeric melt into, or thermoforming or blowing a polymeric preform in said mould so as to bind with the label; and removing the article from the mould. A process of in-mould labelling using a label comprising a polyvinylidene chloride coated film is also disclosed.
    Type: Application
    Filed: January 31, 2011
    Publication date: January 10, 2013
    Inventors: Richard Waning, Stephen Langstaff
  • Patent number: 8348656
    Abstract: System for practicing a method of making a low cost, light weight impact deflecting material, comprising directionally aligned single walled carbon nanotubes in an epoxy resin composition, that is near impervious to bullets fired at close range at all angles of incidence, that does not deteriorate upon abrasion or when exposed to wide ranges of temperature and humidity, and that when used to construct a protective shield for a body armor vest protects the wearer from blunt trauma effects.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: January 8, 2013
    Assignee: Block Textiles, Inc.
    Inventors: Graham E. Gintz, Christopher J Gintz
  • Patent number: 8323554
    Abstract: Methods and apparatus for hydrodischarging and hydrocharging substrates and articles to produce enhanced ability to avoid attraction of contaminants or improved capability of removing contaminants from fluids are disclosed. In another form the method involves removal of electric charges or neutralization of charge on or within substrates. Also disclosed are methods of making using electret substrates and articles for removing particulates and mists from fluid streams.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: December 4, 2012
    Inventor: William K. Leonard
  • Patent number: 8282873
    Abstract: Methods for controlled electrospinning of polymer fibers are described. The methods include spinning a polymer fiber from a fluid comprising a polymer in the presence of an electric field established between a plurality of collectors and a jet supply device controlling the dispersion characteristics of the fluid by applying a magnetic field created by at least one magnet located after the point of jet formation. Different voltages are applied to at least two collectors of the plurality of collectors. At least one magnet, located between the jet supply device and at least one collector, creates a magnetic field substantially transverse or substantially collinear to an electrospinning jet stream. The magnetic field changes direction of travel of the electrospinning jet stream.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: October 9, 2012
    Inventors: Victor Barinov, Kalle Levon
  • Patent number: 8281938
    Abstract: The invention discloses a nano-fiber material, wherein the nano-fiber material is formed by spinning an ionic polymer into a nano-fiber nonwoven, and the ionic polymer is represented by the formula: wherein: R1 includes phenyl sulfonate or alkyl sulfonate; R2 includes R3 includes and m/n is between 1/50 and 50/1, q?0.
    Type: Grant
    Filed: February 28, 2010
    Date of Patent: October 9, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Yi Chen, Shu-Hui Cheng, Feng-Hung Tseng