Fluid Suspension Patents (Class 209/232)
  • Patent number: 9724705
    Abstract: A size sorting device for carbon nanotube agglomerate and a method for separating and collecting dispersed carbon nanotubes using the size sorting device are provided. The size sorting device and method for separation and collection may use a magnetic field for separating and collecting dispersed carbon nanotubes.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 8, 2017
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Dong Hyun Lee, Seung Yong Son, Doo Kyoo Kim, Ki Chull Shin
  • Patent number: 9352333
    Abstract: A process and a device for dry separation of a conglomerate of metal scrap of non-magnetic particles from magnetic ones. Dry separation equipment for metal scrap which have a sequence of magnets placed in line, the poles of which are north-pole to south-pole are unable to meet this requirement. This insufficiency is due to the fact that the conglomerate of metal scrap is not sufficiently shook. This procedure does mean that at the end of transportation there is still non-magnetic material and other stuff fixed to the magnetic material. Intensive motion necessary is achieved by this invention by locating magnets adjacent to one another with equal poles, north-pole to north-pole and south-pole to south-pole and so on.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 31, 2016
    Assignee: AKAI GmbH & Co. KG
    Inventor: Alexander Koslow
  • Patent number: 8991615
    Abstract: A method obtains non-magnetic ores from a suspension-like mass flow containing non-magnetic ore particles. The method involves mixing the mass flow with magnetic particles in a mixing device and forming ore particle-magnetic particle agglomerates, feeding the mass flow as a separator feed flow to a magnetic separator for separating the ore particle-magnetic particle agglomerates from the mass flow, forming a separator concentrate flow containing ore particle-magnetic particle agglomerates and a separator residual flow containing the remaining constituents of the mass flow, and separating the ore particles from the ore particle-magnetic particle agglomerates contained in the separator concentrate flow.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Diez, Argun Gökpekin, Wolfgang Krieglstein
  • Patent number: 8991612
    Abstract: A method obtains non-magnetic ores from a suspension containing ore particle-magnetic particle agglomerates. The method involves dividing ore particle-magnetic particle agglomerates precipitated from the suspension into a mixture of separately present ore particles and magnet particles, separating the magnetic particles from the mixture, forming a first mass flow containing magnetic particles and a second mass flow containing ore particles. At least one information describing a measure of the content of ore particles in the first mass flow and being associated with the first mass flow and/or at least one information describing a measure of the portion of magnetic particles in the second mass flow and being associated with the second mass flow are determined in order to determine the efficiency of at least one of the separation processes described above.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Diez, Argun Gökpekin, Wolfgang Krieglstein
  • Patent number: 8844730
    Abstract: A device for the magnetic separation of a fluid including first particles to be separated of magnetic or magnetizable material and second particles of non-magnetic or non-magnetizable material may include at least two magnet arrangements for generating a magnetic induction B, which are arranged in line with one another with regard to a center axis M, wherein neighboring magnet arrangements have an opposing pole arrangement and are arranged at a distance d from each other for the generation of a cusp field. The device may also include at least one conveying line for transporting the fluid, the line having a longitudinal axis extending, at least in the region of the magnet arrangements, on a plane aligned perpendicularly in relation to the center axis M between neighboring magnet arrangements. The conveying line(s) may have at least one branch downstream of the center axis M, along the transporting direction of the fluid.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: September 30, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Günter Lins, Michael Römheld
  • Patent number: 8844731
    Abstract: Methods, systems, and apparatus are provided for automated isolation of selected analytes, to which magnetically-responsive solid supports are bound, from other components of a sample. An apparatus for performing an automated magnetic separation procedure includes a mechanism for effecting linear movement of a magnet between operative and non-operative positions with respect to a receptacle device. A receptacle holding station within which a receptacle device may be temporarily stored prior to moving the receptacle to the apparatus for performing magnetic separation includes magnets for applying a magnetic field to the receptacle device held therein, thereby drawing at least a proton of the magnetically-responsive solid supports out of suspension before the receptacle device is moved to the magnetic separation station. An automated receptacle transport mechanism moves the receptacle devices between the apparatus for performing magnetic separation and the receptacle holding station.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 30, 2014
    Assignee: Gen-Probe Incorporated
    Inventors: Christopher B. Davis, Norbert D. Hagen, James T. Tuggle
  • Patent number: 8840794
    Abstract: A device for separating ferromagnetic particles from a suspension has a tubular reactor and a plurality of magnets which are arranged outside the reactor, the magnets (9) being movable along at least a part of the length of the reactor (2) up to the vicinity of a particle extractor (5) by means of a rotary conveyor (8).
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: September 23, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Vladimir Danov, Werner Hartmann
  • Patent number: 8834721
    Abstract: A magnetic filtration apparatus to separate ferrous contaminant material from a working fluid. The separation apparatus has a housing that is divided into a plurality of filtration chambers, each chamber having an elongate magnetic core to generate a magnetic field to entrap the contaminant material as it flows through the filter body. A fluid communication passageway is provided between the first and second chambers and is positioned such that the fluid exposure to the magnetic fields is maximized.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: September 16, 2014
    Assignee: Eclipse Magnetics Limited
    Inventors: Kevin Martin, Keith Newman, Steve Mcallorum
  • Patent number: 8812726
    Abstract: Apparatus, methods and computer programs enable carrying service insertion architecture data plane packets in IPv4 or IPv6 networks by packaging destination addresses using IPv6 mechanisms. For example, a data processing apparatus is configured for receiving, from a service broker, a service label and an Internet Protocol version 6 (IPv6) address of a first service node; receiving an IPv4 packet requesting a service associated with the first service node; creating an IPv6 packet comprising a service label in a Flow Label field of the IPv6 packet, the IPv6 address of the first service node in a destination address field of the IPv6 packet, and the IPv4 packet in a payload field of the IPv6 packet; forwarding the IPv6 packet to the first service node. Approaches allow service insertion architecture support for all-IPv6 traffic including tunneled and non-tunneled techniques for environments in which user applications place data in the flow label field.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 19, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Mohamed Khalid, Ciprian Popoviciu, Patrick Grossetete, Kenneth Durazzo
  • Patent number: 8777015
    Abstract: There are provided devices, systems and processes to treat slurries that include magnetic and nonmagnetic particles suspended in water in such a fashion as to separate certain valuable elements and/or minerals from less valuable minerals or elements. A high intensity magnetic separator includes at least one large rotatable turntable that defines at least one circular channel therethrough in which a matrix material is positioned. The turntable is configured to rotate in a generally horizontal plane about a generally vertical virtual axis, causing the at least one circular channel to rotate through a plurality of intermittent magnetic and nonmagnetic zones generated by a plurality of permanent magnet members. A treatment slurry is directed into the channel or channels in one or more of the magnetic zones as the turntable rotates. A tailings fraction passes through the channel or channels in a generally downward direction in the magnetic zones and is collected in tailings launders.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 15, 2014
    Assignee: Magnetation, Inc.
    Inventors: David Chappie, Martin J. Halverson, Lucas J. Lehtinen
  • Patent number: 8715494
    Abstract: A device for separating ferromagnetic particles from a suspension may include a tubular reactor through which the suspension can flow and which has an inlet and an outlet, and a means for generating a magnetic field, which means is designed to generate a magnetic travelling field which acts on the reactor.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 6, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Vladimir Danov, Werner Hartmann, Heinz Schmidt, Andreas Schröter
  • Patent number: 8708152
    Abstract: Slurries of magnetic and nonmagnetic particles in water are treated in a high intensity magnetic separator including at least one turntable that defines at least one circular channel therethrough in which a matrix material is positioned. Rotation of the turntable in a generally horizontal plane about a generally vertical virtual axis causes the circular channel(s) to rotate through a plurality of magnetic and nonmagnetic zones generated by magnet members. Treatment slurry is directed into the channel(s) in one or more of the magnetic zones as the turntable rotates. A tailings fraction passing through the channel(s) in a generally downward direction in the magnetic zones is collected in tailings launders. Magnetic particles attracted to the matrix material in the magnetic zones remain in the channel(s) until they pass into an adjacent nonmagnetic zone, where the magnetic particles are washed from the channel(s) into concentrate launders.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: April 29, 2014
    Assignee: Magnetation, Inc.
    Inventors: Lucas Lehtinen, Shawn Henriksen, David Chappie, Travis Edward Cunningham, Danilo Bibancos
  • Patent number: 8701893
    Abstract: A magnetic separation device is provided, including a first magnetic field unit and a first separation unit disposed at a side of the first magnetic field unit. The first magnetic field unit includes a first magnetic yoke having opposite first and second surfaces, and a plurality of first magnets respectively disposed over the first and second surfaces, wherein the same magnetic poles of the plurality of first magnets face the first magnetic yoke. The first separation unit includes a body made of non-magnetic materials and a continuous piping disposed in the body, including at least one first section and at least one second section, wherein at least one second section is perpendicular to at least one first section, and at least one second section is adjacent to, and in parallel to a side of the first magnetic yoke not in contact with the plurality of first magnets.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: April 22, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Mean-Jue Tung, Li-Kou Chen, Yu-Ting Huang, Hsin-Hsin Shen, Wei-Lin Yu, Yi-Shan Lin, Shinn-Zong Lin, Woei-Cherng Shyu, Hsiao-Jung Wang
  • Patent number: 8689981
    Abstract: Systems and methods for the manipulation of particles within channels such as microfluidic channels are provided. In one set of embodiments, magnets are positioned around a channel. As a fluid containing magnetic and non-magnetic particles flows through the channel, the magnetic field created by the magnets can be used to transport the magnetic and/or non-magnetic particles to desired locations within the channel, which may useful in some cases for causing some separation of the particles. For example, the magnetic field may be used to transport magnetic or non-magnetic particles from a core fluid to a surrounding sheath fluid. In some cases, the magnetic field is used to transport non-magnetic particles to a small volume within the channel (e.g., a single-file row within the channel).
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: April 8, 2014
    Assignee: President and Fellows of Harvard College
    Inventors: Howard A. Stone, Mara G. Prentiss, Pierre Striehl, Efraim Feinstein
  • Patent number: 8646613
    Abstract: The present invention relates to a process for separating magnetic constituents from an aqueous dispersion comprising these magnetic constituents and nonmagnetic constituents by passing the aqueous dispersion through a reactor space in which the aqueous dispersion is separated by means of a magnet installed on the outside of the reactor space into at least one stream I comprising the magnetic constituents and at least one stream II comprising the nonmagnetic constituents, wherein the magnetic constituents in stream I are treated with a flushing stream, a reactor comprising a reactor space, at least one magnet installed on the outside of the reactor space, at least one inlet, at least one outlet for a stream I and at least one outlet for a stream II and at least one facility for treating stream I with a flushing stream, and also the use of this reactor in the process of the invention.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: February 11, 2014
    Assignees: BASF SE, Siemens Aktiengesellschaft
    Inventors: Reinhold Reiger, Juergen Oswald
  • Patent number: 8632684
    Abstract: A device for separating ferromagnetic particles from a suspension has a reactor (2) through which the suspension can flow, with at least one magnet (3, 4) arranged on the outside of the reactor (2), wherein the reactor (2) has an interior space (7) and an exterior space (8) surrounding the former, wherein the interior space (7) and exterior space (8) are separated from one another by an insert (6), and the insert (6) has at least one opening (9, 10) near the at least one magnet (3, 4).
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: January 21, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Vladimir Danov, Bernd Gromoll
  • Publication number: 20130327684
    Abstract: The present invention provides a method and an apparatus capable of continuously and accurately separating, by type, a mixture containing at least two types of particles, or capable of separating specific particles from the mixture, using a gradient magnetic field. In the present invention, a mixture containing at least two types of particles, particles of one type of which are made of a paramagnetic or diamagnetic substance, is treated. A magnetic field whose magnetic field gradient has a vertical component and a horizontal component is applied to a supporting liquid 21 stored in a separating tank 31. When the mixture is placed into the supporting liquid 21, the particles of the one type are guided such that they are positioned in the supporting liquid 21 at a predetermined height from a bottom face 39 of the separating tank 31 while horizontally traveling. Alternatively, the particles of the one type magnetically levitate at a liquid surface of the supporting liquid 21 and horizontally travel.
    Type: Application
    Filed: February 21, 2012
    Publication date: December 12, 2013
    Applicants: UBE INDUSTRIES, LTD, OSAKA UNIVERSITY
    Inventors: Shigehiro Nishijima, Fumihito Mishima
  • Patent number: 8584863
    Abstract: A separating device (1, 10, 14, 16, 17) for separating particles able to be magnetized and particles not able to be magnetized transported in a suspension flowing through a separating channel (3), has at least one permanent magnet (4, 4a, 4b, 4c, 4d) arranged on at least one side of the separating channel (3) for producing a magnetic field gradient which deflects particles able to be magnetized to said side, wherein a yoke (5) is provided for closing the magnetic circuit from the permanent magnet (4, 4a, 4b, 4c, 4d) to the side of the separating channel (3) opposite the permanent magnet (4, 4a, 4b, 4c, 4d) and/or between two permanent magnets (4, 4a, 4b, 4c, 4d).
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: November 19, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Kathrin Bender, Jürgen Oswald, Wolfgang Schmidt, Bernd Trautmann
  • Patent number: 8561802
    Abstract: Systems and methods for processing waste material are presented. For some embodiments, the system comprises a chamber, an inlet, a fluid outlet, a metal outlet, and a magnet. The inlet is configured to selectively open and close. The inlet injects waste material into the chamber when the inlet is open. The waste material is suspended in a fluid medium, and comprises both ferromagnetic substances and non-ferromagnetic substances. The magnet is a selectively activated magnet coupled to the chamber. The magnet is configured to activate when the inlet is open, and deactivate when the inlet is closed. The magnet attracts the ferromagnetic substances from the waste material when the magnet is activated. The attracted ferromagnetic substances are released from the magnet when the magnet is deactivated. The metal outlet configured to selectively open and close. The metal outlet opens and expels the released ferromagnetic material from the magnet when the magnet is deactivated.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: October 22, 2013
    Assignee: Rineco Chemical Industries, Inc.
    Inventor: John P. Whitney
  • Patent number: 8556843
    Abstract: Methods for treating malaria are provided, the treatment comprising the step of removing malaria-infected red blood cells from the patient's blood. Blood is drawn from the patient's circulatory system and circulated through a blood purification device that selectively eliminates the infected red blood cells from all other blood's components and replaces the cleansed blood back into the patient's circulatory system. A blood purification device, which is useful to perform the therapeutic methods of the invention, is also provided. The device leverages the magnetic properties of the hemozoin contained within the infected red blood cells and comprises one or more separation chambers (4) though which blood flows through a high-gradient magnetic field generated by an array of wires (5) separated from the chambers and not in contact with the patient blood.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: October 15, 2013
    Assignee: AccelDx
    Inventors: Alberto Gandini, Roy Weinstein, Ravi-persad Sawh, Drew Parks
  • Patent number: 8505735
    Abstract: A vertical ring magnetic separator for de-ironing of coal ash comprises a rotating ring (101), an inductive medium (102), an upper iron yoke (103), a lower iron yoke (104), a magnetic exciting coil (105), a feeding opening (106), a tailing bucket (107) and a water washing device (109). The feeding opening (106) is used for feeding the coal ash to be de-ironed, and the tailing bucket (107) is used for discharging the non-magnetic particles after de-ironing. The upper iron yoke (103) and the lower iron yoke (104) are respectively arranged at the inner and outer sides of the lower portion of the rotating ring (101). The water washing device (109) is arranged above the rotating ring (101). The inductive medium (102) is arranged in the rotating ring (101).
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: August 13, 2013
    Assignee: China Shenhua Energy Company Limited
    Inventors: Jianguo Han, Zhaohua Guo, Wenhui Zhang, Cundi Wei, Yongwang Wang, Shaonan Xu, Sa Lv, Hong Dong, Junzhou Chi, Jianmin Zhang, Qingan Nan
  • Patent number: 8469196
    Abstract: Methods and apparatuses for separating metal values, such as nickel and nickel compounds, from mineral ores, including lateritic ores are disclosed. The method includes providing a mixture of particles (e.g., crushed and sized ore) that is composed of at least a first group of particles and a second group of particles. Group members have similar chemical composition, while particles belonging to different groups have dissimilar chemical compositions. The mixture of particles is concurrently, or generally concurrently, heated (using microwave/millimeter wave energy) and exposed to a reactant. The wave energy and the reactant act to increase the difference in either the magnetic susceptibility or other separation properties between the first and second group of particles. The mixture of particles is then passed through an appropriate separator to separate the particles of interest. Optional steps are disclosed for purifying selected particles.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 25, 2013
    Assignee: Wave Separation Technologies, LLC
    Inventor: Stephen Birken
  • Patent number: 8379789
    Abstract: This invention relates to a nuclear plant having a reactor vessel and a fluid circuit including flow path defining means, defining a flow path for circulating a reactor coolant fluid from and to the reactor vessel. The nuclear plant includes a particle collection zone defined along at least part of the length of the flow path, and particle deflection means arranged in particle deflecting relationship with the flow path to deflect particles from a fluid stream in the flow path into or toward the particle collection zone.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: February 19, 2013
    Assignee: Pebble Bed Modular Reactor (Proprietary) Limited
    Inventors: Leszek Andrzej Kuczynski, Francis Pieter Van Ravenswaay
  • Patent number: 8360247
    Abstract: A magnetic separation apparatus (10) for separating magnetic materials from non-magnetic materials in a material flow comprising self cleaning magnetic separators (15) comprising: a cylinder (20) having a first end closer to a material flow than its second end in use, a piston (25) slidingly mounted within the cylinder (20), and a magnetic shaft (30) extending from the piston (25), the piston (25) and cylinder (20) adapted to move the magnetic shaft (30) between an extended position (31) and a retracted position (32), such that in the extended position (32), at least a sleeveless portion of an outer surface of the magnetic shaft (30) is exposed to the material flow and in the retracted position the magnetic portion is retracted substantially or wholly within the cylinder (20), the apparatus including a protected shaft wiper (120) and shaft seal (125) within the first end of the cylinder (20) for removing extracted magnetics.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: January 29, 2013
    Inventor: William John Baker
  • Patent number: 8357294
    Abstract: Ferromagnetic particles are separated from a suspension using a tubular reactor having at least one magnet, where a suspension is able to flow through the reactor. A displacer is arranged inside the reactor.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: January 22, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Vladimir Danov, Bernd Gromoll
  • Patent number: 8297444
    Abstract: The present disclosure generally describes techniques for separating semiconducting carbon nanotubes from metallic carbon nanotubes in a carbon nanotube dispersion. The semiconducting carbon nanotubes and metallic carbon nanotubes may be provided and dispersed in a fluid. Once the semiconducting carbon nanotubes attach to the amine-coated magnetic particles, a magnetic field may be applied to the amine coated magnetic particles and attached semiconducting carbon nanotubes to attract and hold at least a portion of the semiconducting carbon nanotubes, so that the semiconducting carbon nanotubes may be separated from the fluid and/or metallic carbon nanotubes.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: October 30, 2012
    Assignee: Empire Technology Development LLC
    Inventor: Seth Adrian Miller
  • Patent number: 8292084
    Abstract: There are provided devices, systems and processes to treat slurries that include magnetic and nonmagnetic particles suspended in water in such a fashion as to separate certain valuable elements and/or minerals from less valuable minerals or elements. A high intensity magnetic separator includes at least one large rotatable turntable that defines at least one circular channel therethrough in which a matrix material is positioned. The turntable is configured to rotate in a generally horizontal plane about a generally vertical virtual axis, causing the at least one circular channel to rotate through a plurality of intermittent magnetic and nonmagnetic zones generated by a plurality of permanent magnet members. A treatment slurry is directed into the channel or channels in one or more of the magnetic zones as the turntable rotates. A tailings fraction passes through the channel or channels in a generally downward direction in the magnetic zones and is collected in tailings launders.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 23, 2012
    Assignee: Magnetation, Inc.
    Inventors: David Chappie, Martin J. Halverson, Lucas J. Lehtinen
  • Patent number: 8276762
    Abstract: Methods, systems, and apparatus are provided for automated isolation of selected analytes, to which magnetically-responsive solid supports are bound, from other components of a sample. An apparatus for performing an automated magnetic separation procedure includes a mechanism for effecting linear movement of a magnet between operative and non-operative positions with respect to a receptacle device. A receptacle holding station within which a receptacle device may be temporarily stored prior to moving the receptacle to the apparatus for performing magnetic separation includes magnets for applying a magnetic field to the receptacle device held therein, thereby drawing at least a proton of the magnetically-responsive solid supports out of suspension before the receptacle device is moved to the magnetic separation station. An automated receptacle transport mechanism moves the receptacle devices between the apparatus for performing magnetic separation and the receptacle holding station.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: October 2, 2012
    Assignee: Gen-Probe Incorporated
    Inventors: Christopher B. Davis, Norbert D. Hagen, James T. Tuggle
  • Patent number: 8268177
    Abstract: A microfluidic separation system, which comprises a magnetic separator, which itself comprises a magnetic energy source; first and second magnetically conductive members leading from the magnetic energy source and having respective terminal ends that are separated by a gap over which a magnetic field is applied due to the magnetic energy source. The separation system further comprises a microfluidic chip for insertion into the gap, which comprises a body defining channels on respective faces of the body; and an exterior lining that seals the plurality of channels to allow separate test sample volumes to circulate in at least two of the channels. Upon insertion of the chip into the gap, a first test sample volume is confined to circulating closer to the terminal end of the first member and a second test sample volume is confined to circulating closer to the terminal end of the second member.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: September 18, 2012
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Guolin Xu, Yoke San Daniel Lee
  • Patent number: 8252187
    Abstract: A method and apparatus (10) for separating magnetic and non-magnetic particles from water in a domestic central heating system is disclosed. A magnet (60) is located in the housing and the inlet and the outlet are arranged so that, in use, water flows through the apparatus in a cyclonic motion from the inlet downwardly proximate the walls of the housing, and then upwardly within the downwardly flowing water, to the outlet. Particles entrained within the water separate out by vortex separation as the water flows downwardly. Also, magnetic particles entrained within the water are collected on the magnet as the water flows upwardly. The apparatus also comprises a sleeve (30) located within the housing such that an outer circulation channel (31) is defined between the housing and the sleeve. The magnet is located within the sleeve such that an inner circulation channel (61) is defined between the sleeve and the magnet.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: August 28, 2012
    Assignee: Alpha Fry Limited
    Inventors: Mukash Jassal, Neil Watson
  • Publication number: 20120199520
    Abstract: A method of sorting particulate matter comprises creating an unconstrained monolayer feed stream of particulate matter moving with an initial first trajectory in a gaseous medium, and subjecting the monolayer feed stream while in the gaseous medium to a magnetic field of sufficient strength to influence the trajectory of at least some particles in the feed stream to cause a spread of particle trajectories from the first trajectory.
    Type: Application
    Filed: March 6, 2012
    Publication date: August 9, 2012
    Applicant: Curtin University of Technology
    Inventor: Vladimir Arkadievich Golovanevskiy
  • Patent number: 8186515
    Abstract: Magnetic Particle Imaging (MPI) requires high-performing tracer materials that are highly magnetic monodispersed particles with fast remagnetization behavior. Known separation techniques only allow for fractionation of magnetic particles based on differences in magnetic volume. Proposed is a separation method, which allows for separation of magnetic particles with respect to their dynamic response onto an oscillating high gradient magnetic field.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: May 29, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Denis Markov, Hans Marc Bert Boeve
  • Patent number: 8132674
    Abstract: A tramp metal separation device includes a first housing having an inlet and an outlet, a first drawer and a second drawer. The first drawer and the second drawer each have a plurality of magnets and a wiper assembly, where each drawer is supported with respect to the first housing such that each first drawer is moveable between an extended position and a retracted position. In the extended position, the magnets of the respective drawer are positioned within the first housing and are adapted to be in contact with the stream of raw materials. In the retracted position, the magnets of the respective drawer are positioned outside of the first housing. The wiper assembly of each drawer removes contaminants from the magnets as the respective drawer moves from the extended position to the retracted position.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 13, 2012
    Assignee: Industrial Magnetics, Inc.
    Inventors: Dan Allore, John Godzik
  • Patent number: 8105493
    Abstract: It is intended to provide a method capable of simply aggregating magnetic particles having a surface modified with a thermoresponsive polymer at a given temperature without heating or cooling an aqueous solution containing the magnetic particles, and a separation method and a detection method of a substance to be detected in a sample using the method. The method of separating a substance to be detected from a sample includes the steps of: mixing an adsorbent and the sample in an aqueous solution to adsorb the substance to be detected on the adsorbent, aggregating the adsorbent by changing a salt concentration in the aqueous solution; and collecting the adsorbent from the aqueous solution by a magnetic force, wherein said adsorbent comprises a magnetic particle of an average particle size of 50 to 1000 nm, a surface of which is modified with a thermoresponsive polymer and is immobilized with a substance having an affinity for the substance to be detected.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: January 31, 2012
    Assignee: JNC Corporation
    Inventors: Yuki Takahashi, Noriyuki Ohnishi, Xiaomao Xie
  • Patent number: 8083069
    Abstract: The present application discloses a process for the high throughput separation of at least one distinct biological material from a sample using magnetic tags and a magnetic separation set up capable of processing at least about 106 units/second. A magnetic field gradient is used to deflect target material bearing a magnet tag from one laminar flow stream to another so that the magnetically tagged target material exits a separation chamber via a different outlet than the rest of the sample. The process is applicable to isolating several distinct biological materials by directing each via magnetic deflection to its own unique outlet. The application also discloses a system for performing the process and a kit that includes the system and the magnetic tags.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: December 27, 2011
    Assignee: General Electric Company
    Inventors: Sunil Srinivasa Murthy, Aaron Joseph Dulgar-Tulloch, James William Bray, Shankar Chandrasekaran, Arvind Kumar Tiwari
  • Patent number: 8075771
    Abstract: This invention relates to apparatus for carrying out continuous or batch centrifugation solid-liquid separation processes in which the solid-liquid mixture is subjected to magnetic field gradients and centrifugation.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: December 13, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Benjamin Fuchs, Christian K. Hoffmann, Karsten Keller
  • Patent number: 8012357
    Abstract: This invention relates to a continuous or batch centrifugation solid-liquid separation process comprising simultaneously subjecting the solid-liquid mixture to localized magnetic field gradients and the centrifugation and to improved centrifugation solid-liquid separation processes wherein the improvement comprises simultaneously subjecting the solid-liquid mixture to a homogeneous magnetic field, a magnetic field gradient or both prior to and/or during the centrifugation.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: September 6, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Benjamin C. Fuchs, Christian Hoffmann, Karsten Keller, Christopher M. Rey
  • Patent number: 7886913
    Abstract: Methods to separate certain valuable elements and/or minerals that utilize wet screens, hydro-cyclones, low intensity magnetic separators and/or Mag Wheel™ separators, including a specially designed magnetic field amplifying matrix. The methods are applicable to mining, manufacturing, mineral processing, or other treatment processes or systems.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: February 15, 2011
    Assignee: Magnetation, Inc.
    Inventors: Alan J. Fritz, Eugene R. Bergstrom, Edward J. Shaughnessy
  • Patent number: 7887699
    Abstract: A magnetic filter device for filtering ferromagnetic material from a fluid in which said material is suspended, has a pair of annular plates (5, 6) attached to either side of an annular magnet (2) of smaller diameter. Pairs of pole pieces (11, 12) radially disposed on the plates (5, 6) are aligned so as to generate fields of magnetic flux which promote the collection and retention of ferromagnetic material between the pairs of pole pieces (11, 12).
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: February 15, 2011
    Assignee: Magnom Corporation Limited
    Inventor: Harold Hall
  • Patent number: 7841475
    Abstract: A continuously operating magnetic particle separating machine includes an inlet for receiving a material having magnetic particles mixed therein, an outlet for discharging the material after the magnetic particles have been separated therefrom, a first flow path extending between the inlet and the outlet, a first magnetic element positionable in the first flow path, a second flow path extending between the inlet and the outlet, and a second magnetic element positionable in the second flow path. The separating machine includes a control system including a diverter valve switchable between a first position for directing the material through the first flow path and a second position for directing the material through the second flow path, whereby the switching frequency of the diverter valve is responsive to a concentration of the magnetic particles in the material.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: November 30, 2010
    Assignee: Kalustyan Corporation
    Inventors: Rodolfo Ricardo, Savas Ozkan
  • Publication number: 20100297733
    Abstract: Systems and methods are provided for capturing and/or isolating target microparticles. In one aspect, a method for capturing target microparticles is disclosed. The method includes: forming a fluid including the target microparticles, non-target microparticles, and magnetic beads, the magnetic beads having a stronger affinity with the target microparticles than with the non-target microparticles; flowing the fluid through a multidirectional microchannel; and applying a magnetic field to the fluid while the fluid is flowing through at least a portion of the microchannel to effect capture of at least a portion of the target microparticles onto the magnetic beads. Such a method can further includes passing the fluid having exited from the microchannel through a separator while subjecting the fluid to a second magnetic field so as to isolate the target microparticles. In addition, devices and systems are disclosed for capturing and/or isolating target microparticles based on magnetic manipulation.
    Type: Application
    Filed: April 21, 2010
    Publication date: November 25, 2010
    Inventors: Qiao Lin, Yao Zhou
  • Patent number: 7806273
    Abstract: A computer-implemented transmission scheme is provided to control client-server interchanges within a distributed communications network, such as a real time opinion research system. Interchanges include transmitting media streams between one or more clients to a server over a network. Periodic interchanges can be simultaneously or staggeredly transmitted to a sampling pool of active clients. A transmission mode unit implements the transmission scheme. A parameter selector establishes the transmission interval and transmission period used to trigger each interchange. A client assignor creates one or more sampling classes from the sampling pool by applying a sampling quotient generated by the parameter selector. A schedule editor produces a transmission schedule for the active clients. If more than one sampling class has been created, each sampling class would receive a separate transmission schedule for providing staggered transmissions at designated transmission intervals.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: October 5, 2010
    Inventor: William E. Strum
  • Patent number: 7726492
    Abstract: A separator device comprising a housing having an inlet and an outlet, a magnetic separator rod or element being located within the housing to collect and separate from the flow of fluid through the housing magnetic particles carried by the flow of fluid.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: June 1, 2010
    Inventor: Christopher Adey
  • Patent number: 7681736
    Abstract: An apparatus for separating a stream of particles with individual sizes smaller than 300 ?m and magnetic properties ranging from collective magnetism as in ferromagnetism to paramagnetism to diamagnetism. The apparatus includes a plurality of stages for separating a stream of particles. The apparatus includes a magnetic component producing a magnetic force associated with each stage. The apparatus includes an aerodynamic component producing an aerodynamic force associated with each stage, where the more magnetic component or components of a feed of particles for each stage is separated and either or both the less magnetic product and the more magnetic product of each stage are the feed for separate succeeding stages with each stage and where the magnetic and aerodynamic forces along with gravimetric forces of each stage are chosen to separate more strongly magnetic particles from less magnetic particles.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: March 23, 2010
    Assignee: EXPORTech Company, Inc.
    Inventors: Edward D. Brandner, Russell E. Jamison
  • Publication number: 20100051517
    Abstract: Actuators, pumps, clutches, brakes and other assemblies may utilize field-responsive fluids that include a plurality of particles suspended in a base fluid. A positive displacement pump is provided by causing particles to align into chains and walls which inhibit traversal by fluid within a fluid enclosure. The field which aligns the particles is moved, thereby causing the walls of aligned particles to move. Because traversal of the walls by the fluid is inhibited, fluid is displaced by movement of the walls of aligned particles. A reciprocating positive displacement pump can be provided by ceasing particle alignment and returning the particles to a starting position. Objects may also be moved in response to collision with chains or walls of aligned particles that move in response to field movement. Fluid circulation features are provided for preventing agglomeration of particles when translating torque between plates in relative rotational movement.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 4, 2010
    Applicant: Schlumberger Technology Corporation
    Inventors: Murat Ocalan, Nathan Wicks
  • Publication number: 20090197329
    Abstract: Disclosed is an apparatus and method for injecting liquid-drops of particle mixture liquid including a mixture of biological particles, affecting magnetic field, and having only positive particles, which are combined with magnetic responsive material, separated by magnetic force, and having negative particles, which are not combined with magnetic responsive material, precipitated by gravity.
    Type: Application
    Filed: January 11, 2007
    Publication date: August 6, 2009
    Inventors: Kang Sun Lee, Ji Yoon Kang, Sung Shin Ryu, In Hye Lee, Choong Kim, Su Kyoung Chae, Jin Woo Lee
  • Patent number: 7553414
    Abstract: A magnetic filter device for filtering ferromagnetic material from a fluid in which the material is suspended has a pair of annular plates (5, 6) attached to either side of an annular magnet (2) of smaller diameter. Pairs of pole pieces (11, 12) radially disposed on the plates (5, 6) are aligned so as to generate fields of magnetic flux which promote the collection and retention of ferromagnetic material between the pairs of pole pieces (11, 12).
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: June 30, 2009
    Assignee: Magnom Corporation Limited
    Inventor: Harold Hall
  • Patent number: 7506765
    Abstract: In a high-gradient magnetic separator for the selective separation of magnetic particles from a suspension which is conducted through a matrix of plate-like separation structures of a magnetic material which are disposed in a magnetic field and through which the suspension is conducted, alternate plates of the separation structures are movable relative to the other plates which are stationary and are all mounted on a carrier by which they can be moved relative to the stationary plates at least during cleaning of the plates for the removal of magnetic particles collected on the plates.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: March 24, 2009
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventors: Matthias Franzreb, Christian Reichert
  • Publication number: 20090045104
    Abstract: A continuously operating magnetic particle separating machine includes an inlet for receiving a material having magnetic particles mixed therein, an outlet for discharging the material after the magnetic particles have been separated therefrom, a first flow path extending between the inlet and the outlet, a first magnetic element positionable in the first flow path, a second flow path extending between the inlet and the outlet, and a second magnetic element positionable in the second flow path. The separating machine includes a control system including a diverter valve switchable between a first position for directing the material through the first flow path and a second position for directing the material through the second flow path, whereby the switching frequency of the diverter valve is responsive to a concentration of the magnetic particles in the material.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Applicant: Kalustyan Corporation
    Inventors: Rodolfo Ricardo, Savas Ozkan
  • Patent number: 7476313
    Abstract: An apparatus and method for carrying out the affinity separation of a target substance from a liquid test medium by mixing magnetic particles having surface immobilized ligand or receptor within the test medium to promote an affinity binding reaction between the ligand and the target substance. The test medium with the magnetic particles in a suitable container is removably mounted in an apparatus that creates a magnetic field gradient in the test medium. This magnetic gradient is used to induce the magnetic particles to move, thereby effecting mixing. The mixing is achieved either by movement of a magnet relative to a stationary container or movement of the container relative to a stationary magnet. In either case, the magnetic particles experience a continuous angular position change with the magnet.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: January 13, 2009
    Inventor: Iqbal Waheed Siddiqi