Reciprocating Magnets Patents (Class 209/217)
  • Patent number: 10362146
    Abstract: A method and system for a content broker, including a unified object index, where the content broker is coupled to the unified object index and receives, from a requesting entity, a request to perform an action on an object and the object is stored in the content repository. The method further including obtaining the object associated with the request from a content repository, determining, using the unified object index, a normalized object type associated with the object, obtaining a governance rule based on the normalized object type, and servicing the request using the governance rule.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 23, 2019
    Assignee: Open Text Corporation
    Inventors: Michael T. Mohen, Raman Walia, Chandra Mouli Addaguduru, Pardeep Kumar
  • Patent number: 9325560
    Abstract: The present invention provides a method, device and system for controlling web page access. The method includes: receiving an access request message of a user, and obtaining an Internet access account of the user according to the access request message; obtaining a corresponding user rank identifier according to the Internet access account, including the user rank identifier in the access request message, and sending the access request message w the user rank identifier to a content provider server, so that the content provider server returns corresponding web page information to the user according to the user rank identifier.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 26, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Lin Du
  • Patent number: 9011693
    Abstract: The invention provides a process for separating a solution from magnetic resin portions, particles and/or fines by passing a solution containing the resin portions, particles and/or fines through a bed of particulate magnetic material.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 21, 2015
    Assignee: Orica Australia Pty Ltd
    Inventors: Gregory Mark Vero, Anthony Price, Colin Bruce Ritchie
  • Patent number: 8967385
    Abstract: An installation for clear separation in one cycle of a conglomerate of different metals into individual material components. The installation involves the conglomerate of different metals being comminuted in a machine for producing a homogeneous mixture of metals and being transported to a feeding device. The conglomerate is transported to a highly magnetic rotating drum that separates ferrous-magnetic materials together with fluff and then conveys remaining nonferrous materials to a slowly running conveyor belt, underneath the conveyor belt, slowly rotating discs are mounted in a row that carry on their outer surface area a plurality of permanent magnets of an alternating pol direction. The nonferrous materials include particles that are stripped into a collection bin.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: March 3, 2015
    Inventor: Alexander Koslow
  • Patent number: 8955686
    Abstract: A magnetic separator system includes a lower conveyor adapted to convey comingled materials to be separated and an upper conveyor disposed above the lower conveyor. The magnetic separator system also includes at least one magnet extending along a length of the upper conveyor to transfer metallic materials from the comingled materials to the upper conveyor. The magnetic separator system further includes an oscillator for moving along the at least one magnet in a reversing motion across a width of the upper conveyor causing the metallic materials to flip over and over and enabling non-metallic materials entrapped with the metallic materials to become separated from the metallic materials and fall to the lower conveyor.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: February 17, 2015
    Assignee: Magnetic Products, Inc.
    Inventors: Keith Rhodes, Ronald Kwasniewicz
  • Publication number: 20140014560
    Abstract: A magnetic separator system includes a lower conveyor adapted to convey comingled materials to be separated and an upper conveyor disposed above the lower conveyor. The magnetic separator system also includes at least one magnet extending along a length of the upper conveyor to transfer metallic materials from the comingled materials to the upper conveyor. The magnetic separator system further includes an oscillator for moving along the at least one magnet in a reversing motion across a width of the upper conveyor causing the metallic materials to flip over and over and enabling non-metallic materials entrapped with the metallic materials to become separated from the metallic materials and fall to the lower conveyor.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 16, 2014
    Inventors: Keith Rhodes, Ronald Kwasniewicz
  • Patent number: 8623216
    Abstract: The invention provides a system and process for separating residual magnetic resin from a liquid stream by passing the stream through or over permanent magnets located within the stream wherein the process also includes a means for releasing any resin retained by the permanent magnets and capturing the released resin.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 7, 2014
    Assignee: Orica Australia Pty Ltd
    Inventors: Gregory Mark Vero, Anthony Michael Browne
  • Patent number: 8522841
    Abstract: A soft drink container includes a plurality of the additive storage containers, a plurality of additive contents contained in the additive storage containers, an additive storage selector, a base storage container containing at least one base liquid, and a mechanism operable to release the additive contents into the base liquid storage. The plurality of additive contents may include at least one of salts, spices, flavoring, color agents, odors, fragrances, vitamins, thickeners, enhancers, fruit distillers, preservatives and vitamins. The additive storage selector is operable to separately align each of the plurality of additive storage containers with an opening of the base storage container and is operable to release a selected additive content into the base liquid container. The additive storage selector may further include a piercer operable to pierce the base storage container.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: September 3, 2013
    Assignee: Enpulz, L.L.C.
    Inventor: James D. Bennett
  • Patent number: 8430247
    Abstract: Method for handling microparticles in such a manner, that at least two treatment steps are performed for microparticles in the same vessel without moving the particles to another vessel. There are organs in the device for changing the solution without having to move the microparticles to another vessel.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 30, 2013
    Assignee: BioControl Systems, Inc.
    Inventors: Matti Korpela, Kenneth Rundt
  • Patent number: 8361316
    Abstract: An apparatus for mixing and separating magnetic particles in a liquid comprises a holder having a plurality of apertures configured as an array of rows and columns and a plurality of containers capable of receiving liquid containing magnetic particles, each container being sized to be placed in one of the apertures; plural magnets capable of being moved relative to the containers between a first position and a second position to change the position of the magnets and magnetic particles in the container; and a drive mechanism for moving the magnets between positions at a sufficiently high speed that the particles do not settle down due to gravitational forces during motion between the first and second positions.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: January 29, 2013
    Assignee: Sigris Research, Inc.
    Inventor: Iqbal W. Siddiqi
  • Patent number: 8323507
    Abstract: Device for the separation of magnetic particles from a liquid, comprising a first vessel (10), a second vessel (20), a connecting surface (11, 21, 30; 200) that runs from the interior of the first vessel (10) to the interior of the second vessel (20), at least one magnet (40) for the provision of a magnetic field, and a guide element (50) by means of which the magnetic field can be guided along one side of the connecting surface (11, 21, 30; 200).
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: December 4, 2012
    Assignee: Qiagen, GmbH
    Inventors: Thomas Rothmann, Thomas Deutschmann, Christian Lenz, Cordula (Leurs) Homberg
  • Patent number: 8296398
    Abstract: Peer-to-peer redundant file server system and methods include clients that determine a target storage provider to contact for a particular storage transaction based on a pathname provided by the filesystem and a predetermined scheme such as a hash function applied to a portion of the pathname. Servers use the same scheme to determine where to store relevant file information so that the clients can locate the file information. The target storage provider may store the file itself and/or may store metadata that identifies one or more other storage providers where the file is stored. A file may be replicated in multiple storage providers, and the metadata may include a list of storage providers from which the clients can select (e.g., randomly) in order to access the file.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: October 23, 2012
    Assignee: Overland Storage, Inc.
    Inventors: Francesco Lacapra, Peter Wallace Steele, Bruno Sartirana, Ernest Ying Sue Hua, I Chung Joseph Lin, Samuel Sui-Lun Li, Nathanael John Diller, Thomas Reynold Ramsdell, Don Nguyen, Kyle Dinh Tran
  • Patent number: 8196751
    Abstract: What is presented is a permanent magnet drum separator for removal of a ferrous fraction from a material stream comprising a pickup magnet that is a rare earth permanent magnet that can be moved within the drum separator. The drum separator comprises a rotatable outer shell having tubular shape with a circular cross section. The drum separator includes a carry magnet that is positioned at a fixed location within the rotatable outer shell near the inside circumference of the rotatable outer shell. The pickup magnet is positioned on a hinge plate within the rotatable outer shell. The hinge plate has a first end attached to a hinge and a second end attached to a movable element. The hinge is positioned at a fixed location within the rotatable outer shell near the inside circumference of said rotatable outer shell. The movable element is able to move the pickup magnet about the hinge to vary the distance between the pickup magnet and the inside circumference of the rotatable outer shell.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: June 12, 2012
    Assignee: Eriez Manufacturing Co.
    Inventors: Timothy G. Shuttleworth, Michael Ross, Christopher D. Cedzo, Rod Palombo, Gregory Nowak
  • Publication number: 20120080359
    Abstract: A magnetic separator comprising a vibratory conveyor for vibratorily flowing non-ferrous articles and articles containing ferrous material within the magnetic field of a transverse extending magnet to magnetically capture the articles containing the ferrous material while allowing the non-ferrous articles to flow therepast. The magnet is periodically retractable to remove ferrous articles magnetically adhered thereto. The use of a set of transverse extending magnets enables a continuous on-the-go separation of articles containing ferrous material from non-ferrous articles without having to shut down the vibratory conveyor.
    Type: Application
    Filed: May 31, 2011
    Publication date: April 5, 2012
    Inventors: Leonard Williams, James R. Steele
  • Patent number: 8088285
    Abstract: An apparatus for mixing and separating magnetic particles in a liquid comprises a holder having a plurality of apertures configured as an array of rows and columns and a plurality of containers capable of receiving liquid containing magnetic particles, each container being sized to be placed in one of the apertures; plural magnets capable of being moved relative to the containers between a first position and a second position to change the position of the magnets and magnetic particles in the container; and a drive mechanism for moving the magnets between positions at a sufficiently high speed that the particles do not settle down due to gravitational forces during motion between the first and second positions.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: January 3, 2012
    Inventor: Iqbal Waheed Siddiqi
  • Publication number: 20110203976
    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: Application
    Filed: April 8, 2009
    Publication date: August 25, 2011
    Inventor: William John Baker
  • Patent number: 7763169
    Abstract: A magnetic separation device, comprising: a separator, including a top base and a bottom base; at least a groove set, each composed of two arc-like grooves having curvatures opposite to each other; at least a magnetic member, being movably fitted inside the two arc-like grooves of the at least one groove set; and at least a test tube slot, each being formed at the outer rim of a base selected from the group consisting of the top and the bottom base of the separator; wherein the top and the bottom bases are assembled by means of a pivotal axis piecing through about at the center of the top and the bottom bases for enabling the two bases to rotate relative to each other; and one of the two arc-like groove is formed on the top base at a surface thereof facing toward the bottom base while forming another arc-like groove on the bottom base at a surface thereof facing toward the top base.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: July 27, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Hsien Su, Chao-Hung Kao, Yuh-Jiuan Lin
  • Patent number: 7647387
    Abstract: Methods and systems are disclosed for delivering personalized content from a first server such as a merchant Web server to a computer accessing a second server such as an affiliate Web server. A system according to the present invention includes a merchant Web server and an affiliate Web server, the affiliate Web server being coupled to the merchant Web server over a computer network. A database of user information is accessible to the merchant Web server, as is a rule base that includes a plurality of configurable rules. User identification may be collected from the computer accessing a Web site controlled by the affiliate Web server and the collected user identification may be sent to the merchant Web server, along with a request for content. User information corresponding to the collected user identification may then be retrieved from the database.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: January 12, 2010
    Assignee: Oracle International Corporation
    Inventors: Kiran Gurudutt Bellare, Sachin Desai, Joshua Michael Dobies
  • Patent number: 7632405
    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: March 15, 2005
    Date of Patent: December 15, 2009
    Inventor: Iqbal Waheed Siddiqi
  • Patent number: 7540012
    Abstract: A method and system for providing multilevel information about video-on-demand services. The method comprises the steps of generating a display, on a computer display screen, of a tree having a plurality of nodes; and embedding in the nodes information about video-on-demand services. Preferably information is embedded in these nodes in the form of matrices. A wide range of information about the video-on-demand service may be embedded in the display. For instance, information may be embedded about usage patterns between the supplier of the video services and the consumer, a list of users, user statistics, satisfaction rates, failure rates, failure causes, rates of view to completion, cost monitor information, customer payment information, menus of videos, charge variations, special features and offers, user age, user education, geography, and any combination of the above.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 26, 2009
    Assignee: International Business Machines Corporation
    Inventors: Louis Paul Herzberg, Charles Steven Lingafelt
  • Patent number: 7517457
    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 15, 2006
    Date of Patent: April 14, 2009
    Inventor: Iqbal Waheed Siddiqi
  • Patent number: 7479859
    Abstract: An apparatus and method in which three or more permanent or electromagnets are mounted in a support structure on rotatable axes in spaced relationship to each other such that the magnetic lines of force of the same magnetic polarity continuously repel each other to generate a field in “opolarity.” The magnets are focused to a generally central spherical shell-like space and upon continuous synchronous rotation generate a magnetic vortex. Magnetic materials or materials that can be made susceptible to the effects of a magnetic field are placed in a material processing portion of a material containment vessel that is positioned in the magnetic vortex where upon continuous synchronous rotation of the magnets, the material is subjected to the quantum and wave mechanical effects of the magnetic vortex so as to be compacted, aggregated, separated, reaggregated, manipulated, tumbled, and levitated and in the process the physical, chemical, and magnetic properties and chemical composition of the material is changed.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: January 20, 2009
    Inventor: Jack Gerber
  • 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
  • Patent number: 7464140
    Abstract: A method for dynamically determining web resource to be loaded and saving space is provided which determines whether to download a network resource according to a current network bandwidth and available memory space. When a user uses an embedded device in a wireless network environment to download a web-page, the browser only downloads a small part of the network resource to present, and if the user desires to download all network resources, he or she can select to download all network resources, so as to save the download time.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: December 9, 2008
    Assignee: Institute For Information Industry
    Inventors: Yau-Wen Nian, Hsiao-Hui Chen
  • Patent number: 7429331
    Abstract: The present invention provides an apparatus for inducing magnetism in a flowstream of an at least partially magnetizable particulate feed material suspended in a liquid, the apparatus including: a treatment chamber having an inlet and an outlet through which the flowstream respectively enters and exits the chamber; and a magnetic source able to be selectively activated with respect to the treatment chamber, such that, when activated, the magnetic source induces magnetism in at least some of the particulate feed material located in the chamber. This allows the introduction of a high gradient magnetic field to effectively magnetize both the weakly and strongly magnetic particulates for subsequent removal by setting or other techniques. When the magnetic source is deactivated, the flow stream of feed material dissipates the deposits of magnetized material from around the source to reduce the possibility of any flow restrictions and maintain the effectiveness of magnets.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: September 30, 2008
    Assignee: Ausmetec Pty. Ltd.
    Inventors: Barry Lumsden, Maureen Helen Miner, legal representative, Robert Miner
  • Patent number: 7384559
    Abstract: A device for treating magnetizable or magnetically attractable particles which are present in a liquid, comprising a holder for one ore more reaction vessel(s) with the liquid containing the particles, at least two movably arranged permanent magnets, a drive unit for moving the permanent magnets; with the permanent magnets being arranged in pairs and opposite each other, and being movable in vertical direction (a, b), and the distance between the two permanent magnets of a pair being dimensioned or adjustable such that a reaction vessel can be positioned therebetween.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: June 10, 2008
    Assignee: Chemagen Biopolymer-Technologie AG
    Inventor: Lothar à Brassard
  • Patent number: 7244391
    Abstract: An apparatus for manipulating and testing molecules includes a surface to which the molecule is anchored at multiple points at one end, a paramagnetic bead on which said molecule is anchored at multiple points at its other end, and a magnetic means for applying a force to the bead, said magnetic means being used to control the stretching and rotation of said bead and said molecule. The apparatus also includes an optical magnification means and a camera for the visualization of said bead. The apparatus further includes a computer means to which images from the camera are transmitted. The computer means includes means for analyzing the motions of the bead. The apparatus also includes a rotating means for spinning the magnetic means about an optical axis of the magnification means.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 17, 2007
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: T. R. Strick, J. F. Allemand, D. Bensimon, A. Bensimon, V. Croquette
  • Patent number: 7223345
    Abstract: High-gradient magnetic filter and method for the separation of weakly magnetisable particles from fluid media (2) in a circuit, embodied as a compact, low-maintenance unit with low repair requirements, comprising a housing (1), for the high gradient magnetic filter, with means for directing the flowing medium (2) in a pipe system with a feed (3) and return (4), a magnetic circuit (5), forming the high-gradient magnet filter in which at least one filter (8) is arranged in a filter chamber (7), formed between the pole faces (6) of the magnetic circuit (5), through which the medium (2) for purification flows, at least one permanent magnet (9), arranged in the magnetic circuit (5), for generation of a magnetic field between the pole faces (6).
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: May 29, 2007
    Assignee: Steinert Electromagnetbau GmbH
    Inventors: Matthias Franzreb, Harald Leinen, Götz Warlitz
  • Patent number: 7073668
    Abstract: A magnetic separator includes a chamber 11 having inlets and outlets 12, 13 which together define a flow path 14. Axially extending tubes 15 are disposed in an array around the cross-section of the chamber 11 and the perforated baffle plate 18 divides the chamber 11 into top and bottom components 16, 17. Each tube contains a magnetic shuffle 19, which can be moved up and down the tube between separator and release positions using a pneumatic control system.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: July 11, 2006
    Assignee: Cross Manufacturing Company (1938) Limited
    Inventors: Nicholas Mark Alford, William Frederick Smith-Haddon
  • Patent number: 7025209
    Abstract: A device for providing wireless Internet access has been described. The device includes an antenna. The antenna is for receiving wireless queries and transmitting wireless responses. The device includes a program. The program is for converting the wireless queries into Internet compatible protocols. The program is for receiving the Internet protocol formatted responses. These responses are then converted in to the wireless responses.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: April 11, 2006
    Assignee: PalmSource, Inc.
    Inventor: Jeffrey C. Hawkins
  • Publication number: 20040182756
    Abstract: A magnetic raking device for cleaning up of dangerous ferro-metallic particles in and around construction jobsites, parks and playgrounds. A device able to perform the duties of both a conventional rake and a magnetic pick up device in one simple step. A hand operated magnetic raking device comprises a housing with a magnet or magnets placed inside. Teeth extending away from the housing are shaped in a fashion as to provide maximum agitation in surfaces such as grass, gravel and hard packed dirt. Device can be used inverted with the teeth facing up along smooth surfaces to pick up ferro-metallic particles without agitation. A handle is mounted to the housing to provide for easy push/pull use of the device. Length of head and handle may vary according to size and scope of area to be raked and cleaned of ferro-metallic particles such as nails and screws.
    Type: Application
    Filed: October 30, 2003
    Publication date: September 23, 2004
    Inventors: Bradley G. Vernon, Patrick D. Arnold
  • Patent number: 6764859
    Abstract: This invention relates to the use of magnetic or magnetizable particles, and, in particular, to methods of mixing magnetic or (super)paramagnetic particles efficiently with a fluid and the separation of the magnetic particles from a fluid, optionally followed by resuspension of the particles in another fluid. The present invention provides a method of mixing, in one or more container(s), magnetic or (super)paramagnetic particles with a fluid, using more than one magnets, whereby the containers are subjected to magnetic fields with different and changing directions by moving the magnets with respect to the position of the container(s) and/or by moving the containers with respect to the positions of the magnets. The invention further provided a device for doing the same.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: July 20, 2004
    Assignee: bioMerieux, B.V.
    Inventors: Hermanus Johannes Maria Kreuwel, Emiel Gerebern Maria Verwimp
  • Patent number: 6722503
    Abstract: In a coal preparation plant which receives a raw coal feed and separates the raw coal feed into a clean coal feed and a refuse feed, an apparatus is provided for receiving and mixing the raw coal feed with water. The inventive apparatus includes a deslime screen assembly including a feedbox, magnetic separator and a deslime screen. The feedbox receives the raw coal feed and directs the raw coal onto the deslime screen for separation into coarse and fine sized raw coal fractions. The magnetic separator is provided which is integrally formed with the feedbox. The magnetic separator receives an input slurry of magnetic solid particles and water from the coal preparation plant, and separates the magnetic solid particles from the input slurry. The overflow tailings slurry output by the magnetic separator from which magnetic solid particles have been removed is received directly by the feedbox and mixed with the raw coal feed particles received thereby.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: April 20, 2004
    Assignee: Sedgman, LLC
    Inventors: Larry A. Watters, Daniel S. Placha
  • Publication number: 20040035760
    Abstract: This invention relates to magnetic separators and in a particular embodiment the separator includes a chamber 11 having inlets and outlets 12, 13 which together define a flow path 14. Axially extending tubes 15 are disposed in an array around the cross-section of the chamber 11 and the perforated baffle plate 18 divides the chamber 11 into top and bottom compartments 16, 17. Each tube contains a magnetic shuttle 19, which can be moved up and down the tube between separator and release positions using a pneumatic control system.
    Type: Application
    Filed: June 23, 2003
    Publication date: February 26, 2004
    Inventors: Nicholas Mark Alford, William Frederick Smith-Haddon
  • Patent number: 6623983
    Abstract: Apparatus and methods are disclosed which facilitate immobilization of magnetically labelled particulate entities, e.g., cells, preferably in a defined pattern, on a collection surface via binding between specific binding pair members, as an aid to particle analysis.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: September 23, 2003
    Assignee: Immunivest Corporation
    Inventors: Leon W. M. M. Terstappen, Galla C. Rao
  • Patent number: 6478161
    Abstract: An eddy current separator apparatus for separating non-ferrous metals from other materials. The apparatus includes a support frame and a table cantileverly suspended from the frame. An expansion and contraction mechanism is incorporated that is adapted to accept a continuous conveyor belt thereabout. The expansion and contraction mechanism is capable of being configured between an operating configuration and maintenance configuration. A continuous conveyor belt is constructed to be able to be looped about the expansion and contraction mechanism and the table such that the conveyor belt is drawn tight in the operating configuration and slackened in the maintenance configuration. In this manner, the continuous conveyor belt is easily removable from, and installable onto the table in the maintenance configuration.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: November 12, 2002
    Inventor: Billy R. Howell
  • Publication number: 20020029998
    Abstract: An eddy current separator apparatus for separating non-ferrous metals from other materials. The apparatus includes a support frame and a table cantileverly suspended from the frame. An expansion and contraction mechanism is incorporated that is adapted to accept a continuous conveyor belt thereabout. The expansion and contraction mechanism is capable of being configured between an operating configuration and maintenance configuration. A continuous conveyor belt is constructed to be able to be looped about the expansion and contraction mechanism and the table such that the conveyor belt is drawn tight in the operating configuration and slackened in the maintenance configuration. In this manner, the continuous conveyor belt is easily removable from, and installable onto the table in the maintenance configuration.
    Type: Application
    Filed: June 19, 2001
    Publication date: March 14, 2002
    Inventor: Billy R. Howell
  • Patent number: 6338903
    Abstract: A semiconductor encapsulating resin composition which is powdery particles of a resin composition comprising an epoxy resin, a curing agent and an inorganic filler, and produced through a series of unit operations inclusive of melt-kneading and pulverization of a raw material mixture, wherein foreign metal having magnetic property originating from metal materials constituting production apparatuses used in the unit operations and contained in the powdery particles are selectively recovered and removed by a drum type metal classification-recovering apparatus. This semiconductor encapsulating resin composition provides a high reliability semiconductor device not containing magnetic foreign metal.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: January 15, 2002
    Assignee: Fujitsu Limited
    Inventors: Yukio Takigawa, Ei Yano
  • Patent number: 6302275
    Abstract: A tracking system employs a strip of readily magnetizable material adhered to at least one edge of a conveyor belt used with a magnetic roll separator. The magnetic field produced by the head roller of the conveyor belt produces a continuous centering force which acts on the easily magnetized material providing proper tracking for the conveyor belt. The readily magnetizable material can be attached directly to either surface of the belt, have an edge portion of the belt wrapped around it or, in the form of a woven wire mesh, have the belt integrated into it by vulcanization. The strip of material may be continuous or intermittent.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: October 16, 2001
    Assignee: Erie E Magnetics
    Inventors: Timothy Guy Shuttleworth, David Scott Bard, Richard Scott Darling
  • Patent number: 6250474
    Abstract: An eddy current separator apparatus for separating non-ferrous metals from other materials. The apparatus includes a support frame and a table cantileverly suspended from the frame. An expansion and contraction mechanism is incorporated that is adapted to accept a continuous conveyor belt thereabout. The expansion and contraction mechanism is capable of being configured between an operating configuration and maintenance configuration. A continuous conveyor belt is constructed to be able to be looped about the expansion and contraction mechanism and the table such that the conveyor belt is drawn tight in the operating configuration and slackened in the maintenance configuration. In this manner, the continuous conveyor belt is easily removable from, and installable onto the table in the maintenance configuration.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: June 26, 2001
    Inventor: Billy R. Howell
  • Patent number: 6040192
    Abstract: A system and method for handling magnetic particles, as in an immunoassay. A remover having a magnetic body and covering sleeve is inserted in a vessel containing magnetic particles and a liquid. The remover is moved up and down with the particles adhered to agitate the liquid and improve adherence of the particles.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: March 21, 2000
    Assignee: Labsystems Oy
    Inventor: Jukka Tuunanen
  • Patent number: 5993740
    Abstract: Magnetic particles are used as the solid phase to carry out immunoassay. In a reaction vessel, the magnetic particles are mixed with a sample containing TSH as an analyte and a labeled antibody. A chemiluminescent label material is bound onto the magnetic particles with an immunoreaction. A fluid including the above mixture is introduced to a chamber inside a flow through cell, the chamber being sized to have a width greater than a depth. The magnetic particles in the fluid are trapped by a magnet so as to be spread in the planar form over a predetermined area within the chamber, while useless materials are discharged outwardly of the chamber. The chamber is then filled with a buffer solution containing an attractant. By applying a voltage to electrodes disposed in the chamber, the label material on the magnetic particles is excited to emit an electro-chemiluminescence. The luminescence is detected by a photomultiplier.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: November 30, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Yasushi Niiyama, Hiroyasu Uchida, Ryuji Tao
  • Patent number: 5660990
    Abstract: A method for determining the presence and/or concentration of a target substance e.g. protein, nucleic acid, bioparticle etc. in a fluid sample is provided. The method disclosed combines elements of immunoassays, coated cup assays and magnetic particle separation to effect the quantitation and recovery of an analyte in solution. Also the method ensures the non-reorientation of magnetically collected material by linking the magnetic particles to a collection surface via a specific binding pair. This linkage immobilizes the magnetic-analyte-containing material and thus allows for vigorous washing and reagent addition without significant redistribution or displacement. Thus the assay of this invention offers the speed of diffusion controlled kinetics as in a ferrofluid assay, the speed of collection of labeled target substance as in a magnetic assay as well as the ability to magnetically monolayer the ferrofluid, all of which is combined with the ease of washing and signal detection found in a coated cup assay.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: August 26, 1997
    Assignee: Immunivest Corporation
    Inventors: Galla Chandra Rao, Paul A. Liberti
  • Patent number: 5571481
    Abstract: A magnetic capture rack is disclosed for holding a plurality of tubes, the magnetic capture rack including a primary housing member having a stepped upper surface, a substantially planar base surface, and a longitudinal bore formed in the primary housing. The longitudinal bore is open at least at one end thereof, and a plurality of linearly arranged wells are formed in the stepped upper surface of the housing on opposing sides of the longitudinal bore and along substantially an entire length of the primary housing. A slidable magnetic member is provided which conforms in outer surface shape to an inner surface shape of the longitudinal bore, the magnetic member being selectively slidable into and out of the longitudinal bore.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: November 5, 1996
    Assignee: Vicam, L.P.
    Inventors: Ralph Powell, Alisa Phillips, Barbara Jackson
  • Patent number: 5558839
    Abstract: An apparatus for performing immunoassays employs a microtiter tray having wells coated with a specific binding partner in conjunction with an array of magnets disposed below the tray. A device for providing relative circular motion of the tray and magnetic array so as to provide a magnet field to the well walls for attracting magnetic particles and subsequent movement of the magnetic field.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: September 24, 1996
    Assignee: Pasteur Sanofi Diagnostic
    Inventors: Claude Matte, Anne Muller
  • Patent number: 5536475
    Abstract: An apparatus for magnetic cell separation using paramagnetic microbeads includes a base upon which is movably carried a rocker member. The rocker member carries both a primary processing container in which a mixture of liquid with cells and paramagnetic microbeads is received; and a primary magnet movable from a first position adjacent to the primary container to magnetically capture the microbeads, and a second position spaced from the primary container to magnetically release the microbeads. The mixture of liquid with cells and microbeads is agitated by tilting motions of the rocker assembly, thereby achieving the binding of target cells to microbeads. The paramagnetic microbeads, with bound target cells, are captured and released by movements of the primary magnet between its first and second positions. A secondary magnet is placed downstream from the primary magnet to capture any paramagnetic microbeads which might escape from the primary magnet.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: July 16, 1996
    Assignee: Baxter International Inc.
    Inventors: Ahmad-Maher Moubayed, R. Alan Hardwick
  • Patent number: 5318914
    Abstract: The present invention relates to a process for determining or detecting by immuno adherence a biological substance present in a sample, which consists in introducing the sample into a receptacle on whose walls there is a component which has a specific immunological affinity for the substance to be tested for, in adding magnetic particles on which there is a substance which has a specific immunological affinity for the substance to be tested for, in subjecting them to several successive magnetic actions in order to accelerate the deposition of the said particles onto the walls and to displace those which have not formed specific bonds with the substance to be tested for which adheres to the walls via the component with affinity which is fixed thereto, and in observing the particles deposited.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: June 7, 1994
    Assignee: Pasteur Sanofi Diagnostics
    Inventors: Claude Matte, Anne Muller
  • Patent number: 5161695
    Abstract: Non-magnetic, conductive particles are separated from one another on the basis of their respective electrical conductivities. This is achieved by irradiating the particles with microwave or radio frequency electromagnetic radiation and simultaneously subjecting the particles to a magnetic field. The eddy currents induced in the particles by the electromagnetic irradiation interact with the magnetic field to cause movements of the particles which are dependent on their conductivities.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: November 10, 1992
    Inventor: Edwin H. Roos
  • Patent number: 5076914
    Abstract: An apparatus for separating ferromagnetic materials from fluid media has a working passage divided by a partition into sections filled with an insert of ferromagnetic material. A magnetizing system is arranged coaxially with the working passage. An arrangement for imparting reciprocations to the magnetizing system is fashioned as at least two electromagnetic coils with one such coil at the opposite ends of the passage, parameters of the coils being such as to ensure movement of the magnetizing system between two extreme positions.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: December 31, 1991
    Inventors: Vyacheslav I. Garaschenko, Alexandr V. Sandulyak, Oleg J. Korkhov
  • Patent number: 5066390
    Abstract: A magnetic separator includes a plurality of elongated magnetic members generally disposed with longitudinal axes extending in parallel relationship with one another. A first end plate is connected to adjacent terminal ends of the magnetic members to hold the magnetic members with the longitudinal axes generally defining a common plane. Non-magnetic sheathing members are disposed sheathing the entire longitudinal length of the magnetic members. A second end plate is connected to adjacent terminal ends of the non-magnetic members to provide longitudinal sheathing and unsheathing movement of the sheathing members with respect to the magnetic members for cleaning accumulated magnetic particles from the exterior surface of the non-magnetic members. The first and second end plates are adapted for reciprocating movement in the commonm plane, preferably in a direction generally perpendicular to the longitudinal axes of the magnetic members to reduce bridging and clogging of the material flow.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: November 19, 1991
    Inventors: Keith J. Rhodes, Scott D. Voorheis