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| Number | Title | Issue Date |
| 7973258 | High-tension electrostatic separator lifting electrode A lifting electrode for a high-tension electrostatic separator. The high tension electrostatic separator having a rotating drum that is connected to ground and an ionizing electrode that generates a corona discharge of charged ions. The lifting electrode comprising ... | 07/05/2011 |
| 7880109 | Classification apparatus and fine particle measuring apparatus A classification apparatus for classifying and separating particles having particle sizes within a predetermined range is disclosed. In a preferred embodiment of the classification apparatus, a center electrode (3) and an outside electrode (4) generate... | 02/01/2011 |
| 7383956 | Woodwaste recycling apparatus and method A woodwaste processing trommel apparatus has a rotating trommel for receiving and separating woodwaste by size. An elongated electrode is mounted within the trommel and has a polarized electric charge thereon for attracting plastic pieces having a static electric ch... | 06/10/2008 |
| 7342556 | Display device and method of manufacturing same A lower substrate including a first electrode and an upper substrate including a second electrode are opposed to each other. Partitioned spaces between the two substrates correspond to pixels, each including negatively charged black particles and positively charged ... | 03/11/2008 |
| 7316982 | Controlling carbon nanotubes using optical traps An embodiment of the present invention is a technique to control carbon nanotubes (CNTs). A laser beam is focused to a carbon nanotube (CNT) in a fluid. The CNT is responsive to a trapping frequency. The CNT is manipulated by controlling the focused laser beam. ... | 01/08/2008 |
| 7316320 | Sorting charged particles Charged particles may undergo two different separations within a single device, without manual intervention to effect the transfer of the particles between separations. In some embodiments, the device may be a Micro-Electro-Mechanical System. ... | 01/08/2008 |
| 7259344 | Application of static light to a fluid of CNTs for purposes of sorting the CNTs A method is described that comprises sorting carbon nanotubes (CNTs) within a fluidic flow for a targeted subset of the CNTs. The sorting comprises attracting at least a portion of the CNTs within the fluidic flow in a direction of increasing intensity of an electri... | 08/21/2007 |
| 7119298 | Method for electrostatically separating particles, apparatus for electrostatically separating particles, and processing system An electrostatic separation apparatus for conductive particles and insulating particles with reduced separation time and improved separating capability, comprises a substantially flat-plate shaped bottom electrode (26) provided on lower side, a substantially ... | 10/10/2006 |
| 7045734 | Spark induction power conditioner for high tension physical separators A D.C. voltage altering device includes at least one spark induction power conditioner including a first electrode connectable to a high voltage D.C. power source and a second electrode spaced from the first electrode and forming a discharging gap therebetween. The ... | 05/16/2006 |
| 7041925 | Apparatus for the electrostatic separation of particulate mixtures Apparatus for the electrostatic separation of a mixture of particles that exhibit difference in electrical conductivity, comprising: a conductive surface to which conducting particles lose their charge; feeding means for feeding the mixture of particles onto the con... | 05/09/2006 |
| 6976591 | Food-stuff physical characteristic sorting apparatus and method A foodstuff seed sorting endless belt conveyor apparatus for sorting out premium quality seeds from a seed mixture having both premium and inferior grade seeds on the basis of seed physical characteristics develops an orbital motion that is superimposed upon the nor... | 12/20/2005 |
| 6974926 | Sorting of single-walled carbon nanotubes using optical dipole traps In embodiments of the present invention, the electric field of a focused laser beam induces a dipole in a single-walled carbon nanotube. The single-walled carbon nanotube has one or more resonant frequencies. When the frequency of the laser beam is less than a reson... | 12/13/2005 |
| 6974927 | Method and system for optically sorting and/or manipulating carbon nanotubes A method, apparatus, and system for optically sorting and/or manipulating carbon nanotubes by creating an optical dipole trap with a focused light source (e.g., a laser) are described in detail herein. In one representative embodiment, light from the light source ma... | 12/13/2005 |
| 6951992 | Corona and static electrode assembly A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The coro... | 10/04/2005 |
| 6903294 | Apparatus for separating plastic chips A first and second electrostatic sorting sections are arranged below a tribo-electrifying device in this order in a vertical direction to form a sorting electrostatic field between a drum electrode and an opposing electrode. Plastic pieces separated from the other p... | 06/07/2005 |
| 6797908 | High-tension electrostatic classifier and separator, and associated method The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona element supplies mobile ions for bombarding particulate materials dropping down a passageway... | 09/28/2004 |
| 6723938 | Electrostatic conductive induction separator A particle separator for the separation of particulate mixture having species that exhibit difference in electrical conductivity. The separator has a conductive surface including a separation zone, has feeder means for feeding the species to the separation zone, and... | 04/20/2004 |
| 6720514 | Plastic sorter A feed tray (22) for guiding tribo electrified plastic pieces (2) to a drum electrode (6) is provided with a vibrator (23), thereby making it possible to vibrate the plastic pieces (2) to form a thin uniform layer, and to reliably ... | 04/13/2004 |
| 6681938 | Device and method for separating minerals, carbon and cement additives from fly ash A process for separating organic and inorganic particles from a dry mixture by sizing the particles into isolated fractions, contacting the sized particles to a charged substrate and subjecting the charged particles to an electric field to separate the pa... | 01/27/2004 |
| 6680451 | Method and apparatus for electrically charging and separating particles A method is provided for separating particles having different triboelectric propensities. The method utilizes a voltage of less than five volts electrically charge a surface and to reduce the risk of fires and explosions that are associated with particle... | 01/20/2004 |
| 6648975 | Method and apparatus for fabricating quantum dot functional structure, quantum dot functional structure, and optically functioning device The present invention is to fabricate a quantum dot functional structure having ultra-fine particles homogeneously distributed in a transparent medium by efficiently fabricating high-purity ultra-fine particles having a single particle diameter and unifor... | 11/18/2003 |
| 6496997 | Hard disk driver with an integrated structure for electrostatically removing dielectric particles generated during the operation, and electrostatic cleaning method for a hard disk driver An electrostatic cleaning structure of a hard disk driver is formed by a plurality of concentric conductive regions to which biasing pulse trains are supplied. Each biased conductive region generates an electric field attracting any dielectric particle. T... | 12/24/2002 |
| 6498313 | Electrostatic particle separation system, apparatus, and related method An electrostatic separation apparatus or system is provided for separating a particle mixture into two constituent species. The system includes a distributor for differentially tribocharging the particle species forming the mixture and supplying the charg... | 12/24/2002 |
| 6467628 | Plastic chip separator A device for electrostatically separating different kinds of crushed plastic pieces and correctly sorting them according to kind. The device has a classifying section (40) for classifying plastic pieces according to size, a frictional charging device (17)... | 10/22/2002 |
| 6454862 | Fine-particle classification apparatus and functional material production apparatus In the fine-particle classification apparatus of the present invention, a carrier gas velocity in a take-in section to introduce the aerosol to the fine-particle classification apparatus from the aerosol generation apparatus is increased so as to decrease... | 09/24/2002 |
| 6426474 | Method and apparatus for separating plastic The invention provides a plastic sorting method and apparatus, which, when plastic pieces comprising a plurality of types of resin plastics are agitated and frictionally charged, are able to impart the plastic pieces a necessary amount of charge or polari... | 07/30/2002 |
| 6415929 | Method of separating plastic When plastic pieces of plural different types of resins fed into a hopper are agitated to be triboelectrically charged, the plastic pieces are not imparted with sufficient amounts of charges or proper polarities which are required for separation of the pl... | 07/09/2002 |
| 6365857 | Plastics sorting apparatus A conveyor (3) feeds batches of plastic chips (2) in feeding amounts W1 to a charging device (4). After the plastic chips (2) have been stirred and charged inside the charging device (4) for a certain period of time T, they are ejected in batches and fed ... | 04/02/2002 |
| 6365856 | Particle separator and method of separating particles The invention relates to a particle separator and methods for separating the particles of a mixture. The apparatus of the invention employs two field elements to create a field in the space between the field elements. The surface contact of the particles ... | 04/02/2002 |
| 6359246 | Process and device for separating broken beans and shells The invention concerns a process as well as an apparatus for separating broken goods, consisting of broken nibs or beans and their shells and especially the separation of broken cacao beans (nibs) from the cacao shells in an electrostatic manner. In this ... | 03/19/2002 |
| 6329623 | Electrostatic separation apparatus and method using box-shaped electrodes This invention relates to an apparatus and method for electrostatically separating particles having different electrostatic properties. The apparatus involves two thin box-shaped electrodes facing each other as mirror-images and charged with a voltage fie... | 12/11/2001 |
| 6170668 | Apparatus for extraction of contaminants from a gas A method of treating industrial gases to remove contaminants is disclosed. Ions are generated in stream of injectable gas. These ions are propelled through the contaminated gas as it flows through a collection unit. An electric field is applied to the con... | 01/09/2001 |
| 6168029 | Method for separating electrically conductive mineral components from electrically non-conductive mineral components of an ore An improved method for separating electrically conductive components of an ore or mineral sand from electrically non-conductive components of the ore or mineral sand is disclosed which includes processing the ore, adding a polymer, such as an anionic poly... | 01/02/2001 |
| 6140598 | Method for separating polymer-salt mixtures The present invention relates to a method of triboelectric separation of organic polymers and salts, specially organic polymers containing sulfur, such as polyarylene sulfides and a halogenide or a carboxylate of alkaline metals, alkaline earth metals, am... | 10/31/2000 |
| 6136171 | Micromachined electrical field-flow fractionation system A micromachined system for electrical field-flow fractionation of small test fluid samples is provided. The system includes a microchannel device comprising a first substrate having a planar inner surface with an electrode formed thereon. A second substra... | 10/24/2000 |
| 6072140 | Method and apparatus for electrically charging and separating particles A method and apparatus for separating particles provides comingled particles including a first group of particles having a weight and a triboelectric propensity and a second group of particles each having a weight less than the particles in the first grou... | 06/06/2000 |
| 6064022 | Electrostatic separation of particles An apparatus and a process for subjecting a free falling stream of particles to an electrostatic field, between two rows of oppositely charged electrostatic rotating electrodes to effect a separation between particles of different electrostatic properties... | 05/16/2000 |
| 5967331 | Method and apparatus for free fall electrostatic separation using triboelectric and corona charging A free-fall separator apparatus for mixed particles. The apparatus includes a screw feeder for triboelectrically charging the particles, a feed hopper for releasing the tribocharged particles in a laminar flow path between a first electrode structure and ... | 10/19/1999 |
| 5909813 | Force field separator A force field separator which can utilize either electric or magnetic fields to separate materials which are sensitive to those forces. As an electrostatic precipitator it produces higher separation efficiencies with smaller equipment and lower cost. As a... | 06/08/1999 |
| 5904253 | Belt separator system having improved belt geometry In a belt separator system for separating constituents of a mixture of particles, the belt having a leading deflective surface at an acute angle to the direction of belt travel so as to impart a transverse momentum component to the constituent in a direct... | 05/18/1999 |
