Feeding Patents (Class 209/231)
  • Patent number: 8967386
    Abstract: A modular magnetic separation apparatus set has a processing capacity increased by increasing the number of the unit modules of the magnetic separation apparatus set, being suitable for all enrichment processes of magnetic minerals. One modular unit is defined with a separation wheel and its two neighboring magnet-concentration cores and two corresponding excitation coils and a charging hopper and a discharging hopper of magnetic materials, each unit being combined of multiple identical modular units. The modular magnetic separation apparatus solves the conflicts between the transportation of apparatus after the enlargement and the height and width restrictions on general roads, including more reasonable conditions for separate transportation.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: March 3, 2015
    Assignee: Safe Parking Limited
    Inventors: Chengchen Zhang, Qi Tang, Hengsheng Li, Chaopeng Li
  • Patent number: 8919566
    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. The particles are subsequently sorted and/or collected on the basis of their trajectories.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: December 30, 2014
    Assignee: Curtin University of Technology
    Inventor: Vladimir Arkadievich Golovanevskiy
  • 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: 8443983
    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: April 21, 2010
    Date of Patent: May 21, 2013
    Inventor: Christopher Adey
  • Patent number: 8353406
    Abstract: A system, method, and computer readable medium for creating a video clip comprises receiving still image files by a first module, creating a copy of a still image from the still image files with reduced dimensions by the first module, creating a new still image from a selected area of the still image, storing the new still image and the copy of the still image with a unified file name, ordering the stored images, creating an audio file by at least one of a second module and a third module, creating a timeline, by the first module, related to the ordered images and the created audio, and rendering the timeline into the video clip by a fourth module.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: January 15, 2013
    Assignee: Silver Screen Tele-Reality, Inc.
    Inventors: Jason Sumler, Tomer Alpert
  • 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: 20100140213
    Abstract: An apparatus for manufacturing carbon nano tubes of an aspect of the present invention including an introducing unit commonly introducing a first carbon nano tube having first magnetic characteristics and a second carbon nano tube having second magnetic characteristics different from the first magnetic characteristics, first and second collecting units collecting the first and second carbon nano tubes, respectively, a transport unit transporting the first and second carbon nano tubes from the introducing unit to the first and second collecting units, and at least one of a magnetic field generating unit which is provided adjacent to the transport unit and applies a magnetic field to the first and second carbon nano tubes, wherein the first carbon nano tube and the second carbon nano tube are sorted by the magnetic field generating unit.
    Type: Application
    Filed: November 13, 2009
    Publication date: June 10, 2010
    Inventors: Makoto MIZUKAMI, Kiyohito NISHIHARA
  • 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: 7478727
    Abstract: System and method for a continuous process for separating particles according to their magnetic properties such as Curie point includes a feed of hot particles having different magnetic properties on a moving surface spaced above a stationary magnetic assembly. The temperature of the bed of particles is controlled to enable selective separation of different factions of particles based upon the temperature of the particles. The magnets are maintained substantially below their Curie point. Gaseous nitrogen is fed into and from the inside of the magnetic assembly to enhance the cooling of the magnetic assembly and to inhibit oxidation. The gas exits through high temperature bearings to inhibit debris therein. A thermal shield is placed between the moving surface and the magnets and below tubes carrying a cooling fluid to maintain magnets substantially below their Curie point. The entire process is contained with an inert gas-purged cabinet.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: January 20, 2009
    Assignee: Outotec Oyj
    Inventors: Thomas J. Grey, Shawn A. Dierickx
  • Patent number: 7320029
    Abstract: The invention relates to a device, system and method a method for applying a certain Quality of Service (QoS) to a data stream (31a–31c, 32a–32b, 33a) of an application (31–33) communicating data over a sockets connection. The method comprises providing a uniquely identifiable identifier (UID, Stream Type) the application (31–33) or to the data stream (31a–31c, 32a–32b, 33a) from or to the application, and associating said identifier (UID, Stream Type) with a particular QoS in order to apply the particular QoS to the particular application (31–33) or to the particular data stream (31a–31c, 32a–32b, 33a), which application or data stream is identified by the identifier.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: January 15, 2008
    Assignee: Nokia Corporation
    Inventors: Janne Petri Rinne, Mika Liljeberg, Jarkko Juhani Jouppi
  • Patent number: 7311846
    Abstract: A method and apparatus for separating ferrous metal particles from non-ferrous metal particles suspended in a liquid, such as a coolant from a machining operation, in which mixed particle containing liquid is discharged across a horizontal, non-magnetic separating surface; the magnetic ferrous metal particles are captured by a magnetic force exerted by an array of parallel magnets disposed underneath the separating surface, the non-magnetic non-ferrous metal particles are washed by the liquid into a collecting flume from where they can be passed to a filtering station for removal from the liquid, and the captured ferrous metal particles are scraped from the separating surface and conveyed to a ferrous metal discharge by a scraper conveyor which moves transversely to the discharge direction of the liquid.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: December 25, 2007
    Assignee: Mann & Hummel GmbH
    Inventors: Richard Comer, Mark Schroder
  • Patent number: 7210581
    Abstract: A method and apparatus of separating integrated circuit (IC) devices according to magnetic properties of the devices is disclosed. A plurality of IC devices are subjected to a magnetic field. The IC devices containing only nonferrous material are not responsive to the magnetic field and are thus gathered to a first collection site. The IC devices containing ferrous material adhere to a moving surface proximate the magnetic field and are transported to a second collection site. The sorted devices are then transported to separate locations for further processing. The apparatus used for separating the IC devices may include a conveyor having a magnetic drum and an antistatic belt which travels about the magnetic drum. The conveyor allows nonferrous IC devices to fall off the edge of the magnetic drum into the first collection site while transporting the ferrous IC devices to another location for collection.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: May 1, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Keith E. Robinson, William L. Poulson, Ionel Vulcan
  • Patent number: 6832691
    Abstract: A magnetic separator system comprises a feed chute having an adjustable feed chute floor portion for controlling the release of discharge slurry from the feed chute onto a rotating magnetic drum separator. Adjusting the adjustable chute floor portion controls where discharge slurry released from the feed chute contacts the outer surface of the drum, allowing the contact point to be maintained for optimal separation simply through such adjustments. Precise control over flow of discharge slurry onto the drum notwithstanding variations in flow of discharge slurry permits the system to use an open construction, which is more compact and which reduces wear and abrasion and makes the system more accessible for repair. The field of attraction from magnets within the drum extends not only around the circumference of the drum, but also into the feed chute over the adjustable feed chute floor portion.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 21, 2004
    Assignee: Rampage Ventures Inc.
    Inventors: David Roger Miles, Peter T. Watson, A. Bruce Paige
  • Publication number: 20040108253
    Abstract: Method for the wet dynamic separation of a suspension in liquid phase, comprising microparticles comprising a magnetic material and a liquid medium in which said microparticles are in suspension, in which method:
    Type: Application
    Filed: January 27, 2004
    Publication date: June 10, 2004
    Inventors: Patrick Broyer, Christian Jeandey
  • 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
  • Patent number: 6702940
    Abstract: A device for transporting particles of a magnetic material in a selected direction, having a support member having a support surface for supporting the particles, the support surface extending in a selected direction, a magnet arranged to generate a magnetic field retaining the magnetic particles on the support surface, the magnetic field having at least one region of reduced field strength at the support surface relative to a field strength of the magnetic field at the support surface outside said region, and drive means for moving each region of reduced field strength relative to the support surface in a direction having a component in the selected direction.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: March 9, 2004
    Assignee: Shell Oil Company
    Inventor: Jan Jette Blange
  • Patent number: 6330946
    Abstract: Apparatus for separating particles such as minerals from a mixture including said particles. The apparatus includes means for generating a rotating magnetic field such as a rotating magnetic drum (71). The apparatus also includes means for exposing the mixture to the rotating magnetic field such that susceptible particles are caused to rotate, and means for exploiting the rotation imparted to the susceptible particles to separate the particles from the mixture. The means for exposing may include a conveyor belt (72) or the like for passing the mixture along a first path (70) relative to the rotating magnetic field. The means for exploiting may include a surface (74) for facilitating movement of the particles along a second path (A) other than the first path.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: December 18, 2001
    Assignee: KA PTY Ltd.
    Inventor: Neil Robert Allen
  • Patent number: 6224777
    Abstract: A matrix separation element for use in magnetic separation devices is produced by winding stainless steel filament around a porous mandrel at a controlled tension. Controlling the tension on the filament produces a matrix separation element having a uniform, predetermined density. Further compression of the filament is not necessary. The tension may be controlled by varying the rotational velocity of the mandrel and/or the filament supply spool during winding. The matrix separation element preferably is used in a radial flow canister magnetic separation apparatus, but also may be used in axial flow and in multi-axial flow magnetic separation devices.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: May 1, 2001
    Assignee: Aquafine Corporation
    Inventor: Joseph Iannicelli
  • Patent number: 6193071
    Abstract: A force field separator which utilizes magnetic fields to separate materials which are sensitive to those forces. As a magnetic separator it separates paramagnetic and diamagnetic materials with lower strength fields. It employs small sectional area rods which generate high field gradients between adjacent rods which are oriented at an angle to the flow direction inside an elongate housing which contains the fluid stream. The separation forces are a resultant of the force propelling the fluid through the housing and the field forces produced by the field gradients. The resultant force direction is towards multiple openings along the outside length of the housing where a separate plenum flow of separated materials is created.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: February 27, 2001
    Inventor: Ceil Stelzer
  • Patent number: 6180005
    Abstract: A matrix separation element for use in magnetic separation devices is produced by winding stainless steel filament around a porous mandrel at a controlled tension. Controlling the tension on the filament produces a matrix separation element having a uniform, predetermined density. Further compression of the filament is not necessary. The tension may be controlled by varying the rotational velocity of the mandrel and/or the filament supply spool during winding. The matrix separation element preferably is used in a radial flow canister magnetic separation apparatus, but also may be used in axial flow and in multi-axial flow magnetic separation devices.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: January 30, 2001
    Assignee: Aquafine Corporation
    Inventor: Joseph Iannicelli
  • Patent number: 6120735
    Abstract: A method and apparatus for the fraction sorting of cells is provided. The invention include a dispensing device, aspirating device, flow channel and a magnetic assembly. A first fractional sorting device includes a dipole fractional cell sorter. The dipole fractional cell sorter includes large aspect ratio flow channel and a dipole magnetic assembly. A second fractional sorting device includes a quadrupole fractional cell sorter. The quadrupole fractional cell sorter includes an annular flow channel having inlet and outlet splitters, and a quadrupole magnetic assembly. The quadrupole magnetic assembly includes pole pieces having projecting members with convex surfaces and in is in physical communication with the annular flow chamber. The method of the present invention provides a flow through fractional cell sorting process which is based on the application of a magnetic force to cells having a range of magnetic labeling densities.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: September 19, 2000
    Assignees: The Ohio States University, The Cleveland Clinic Foundation
    Inventors: Maciej Zborowski, Jeff Chalmers, Lee R. Moore
  • Patent number: 5968820
    Abstract: A method for separating cells is presented. The method provides a flow through fractional cell sorting process that is based on the application of a magnetic force to cells having a range of magnetic labeling densities. Magnetically labeled cells are introduced into a flow channel. The cells are continuously fractionated into flow streams based on magnetic susceptibility by subjecting the cells in the flow channel to a magnetic field. The fractionated cells are recovered based on their response to the magnetic field. Methods employing dipole fractional sorters and quadrapole annular sorters are also presented.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: October 19, 1999
    Assignees: The Cleveland Clinic Foundation, The Ohio State University
    Inventors: Maciej Zborowski, Jeff Chalmers, Lee R. Moore
  • Patent number: 5931309
    Abstract: A device for separating metallic and non-metallic materials via an inclined conveyor belt and vibrating plate feed. Feed material is dropped from the feed plate onto the inclined portion of the conveyor. Magnetic material adheres to the inclined belt by attraction to a magnetic plate spaced such that the belt interposes between the magnetic plate and the materials to be separated. Non-metallic materials fall down the incline into a collection area. The device further includes a second magnetic plate, after the first, oriented to diverge from the belt in the direction of conveyance to provide a uniform, attenuating magnetic flux.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: August 3, 1999
    Assignee: Almhults El Mek AB
    Inventor: Einar Andersson
  • Patent number: 5887728
    Abstract: A mixture of electronic component chips 2 and media 3 is placed in a planar state on a transport surface 4 of a conveyor 5. Only the media 3 are collected onto a first circulating circumferential surface 18 by a magnetic force provided by a first collection member 12 and are thereafter collected by a media collecting box 22. Then, only electronic component chips 2 having a plating film of a proper thickness formed thereon are attracted onto a second circumferential surface 28 by a magnetic force provided by a second collection member 23 and are thereafter collected by a good product collecting box 31. Electronic component chips 2a having a plating film of an insufficient thickness formed thereon are collected by a defective product collecting box 32.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: March 30, 1999
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuji Muranaka, Shigeo Yaichi
  • Patent number: 5873313
    Abstract: In a vacuum housing (1), an inner duct (17) is disposed. Quadrupole magnets (superconducting coils) (4) is placed around the inner duct (17) is excited by a DC power supply (10). Quadrupole magnets (4) are cooled by liquid helium contained in a helium housing and outer tubes (2, 3) and is brought into a superconducting state. Pulverized coal X is ejected together with air Y from a header (11) through piping (12) and a valve (13) to a baffle plate (14). Pulverized coal is made to fall into the inner duct (3). Paramagnetic materials such as ash are attracted by magnetic force to the tube and are then collected by a collection tube (26). Combustible diamagnetic materials are collected by a combustible collecting tube (18) extending in the central axis. Intermediate materials are collected by an intermediate collection tube (23) and are put back to the head (11) through a bypass tube (25). There are no mechanical parts in the inner duct (3). Consequently, rotation loss and eddy-current heating are prevented.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: February 23, 1999
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Masaharu Minami, Hiroyuki Katayama, Takuya Kimura
  • Patent number: 5797498
    Abstract: A magnetic separator for separating a magnetic substance such as metal parts or workpieces from a nonmagnetic substance such as abrasives used in a barrel finishing includes an infeed passage along which a mixture of the workpieces and the abrasives is conveyed. A rotary drum is rotated in a direction crossing the infeed passage, and a magnet is mounted in the rotary drum so that the magnetic substance is attracted to a circumferential surface of the rotary drum. The workpieces picked up onto the rotary drum are conveyed along an outfeed package, and a demagnetizer establishes an alternating field in the middle of the outfeed passage along a direction in which the magnetic substance is conveyed along the outfeed passage. A sweeping brush is located on the infeed passage in the vicinity of the rotary drum so as to scrape the surface of the workpieces attracted to the surface of the rotary drum to sweep off granular abrasives adherent to the surface of the workpieces.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 25, 1998
    Assignee: Tipton Corp.
    Inventors: Hisamine Kobayashi, Katsuhiro Izuhara
  • Patent number: 5522513
    Abstract: An apparatus for separating non-ferrous metal particles from residue composed of rubber, dirt, wood, plastic, glass, an the like, as well as the non-ferrous metal particles. The residue is transported by a conveyor belt over a pair of rotating magnetic separating discs which generate a magnetic field flux upward. This magnetic field flux induces an eddy current in the non-ferrous metal particles. The eddy current is a repulsive force to the magnetic field flux, which enables the non-ferrous metal particles to be levitated above the conveyor belt and the other residue material. The rotation of the field accelerates the particles off the side of the conveyor belt, into discharge chutes which collect the separated particles for recycling. The other residue material is collected at the end of the conveyor belt.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: June 4, 1996
    Inventor: Billy R. Howell
  • Patent number: 5328034
    Abstract: A machine for sorting recyclable matter includes a trommel for conducting and screening an input flow of recyclable matter and a magnetic mechanism coupled to the trommel for extracting magnetic material from the input flow while the trommel rotates. The input flow is dropped vertically from the trommel into a positive-pressure air separator which separates the flow into a first material stream including lightweight articles and a second material stream including relatively heavy articles. The heavy articles of the second material stream drop downwardly in the air separator. Padded baffles are provided in the air separator for reducing the downward velocity of the second material stream, which substantially lowers breakage of glass articles.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: July 12, 1994
    Assignee: CP Manufacturing
    Inventor: Robert M. Davis
  • Patent number: 5143221
    Abstract: The apparatus comprises a container mounted on a chassis having wheels and a supporting structure. A powered vertical auger is provided inside the container for mixing animal fodder therein. A side wall of the container is provided with an opening which can be selectively closed by a door. A conveyor belt having side walls and a lower chute is located adjacent the opening in the container, for transporting fodder therefrom upon opening the door. Permanent magnets are fixed to the side walls and lower chute of the conveyor and to a tubular element of the supporting structure arranged above the conveyor for removing and retaining any ferromagnetic material contained in the animal fodder being conveyed.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: September 1, 1992
    Inventor: Tiziano Faccia
  • Patent number: 5108587
    Abstract: Electrodynamic separation of non-ferromagnetic, free-flowing materials, in which at least one component of the material to be processed is electrically conductive, whereby such material is caused to free-fall into a region of space permeated by time and space varying magnetic fields which induce eddy currents in the electrically conductive particles which produce forces on such particles that result in substantially different free-fall trajectory than that of nonconductive particles. Conductive particles are separated on the basis of mass, electrical conductivity and magnetic susceptibility. The time and space varying magnetic fields are generated by a plurality of permanent magnets or electromagnets attached to a rotor assembly such that the polarity of adjacent magnets is caused to reverse so that rotation of the rotor assembly generates magnetic fields which may vary in time and space to the maximum extent.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: April 28, 1992
    Inventor: Erik K. Walker
  • Patent number: 5101980
    Abstract: A material separator for separating non-magnetic components from magnetic components in a material is provided. The material separator has a support frame, a magnetic roller, an idler roller and a conveyor belt. The idler roller is rotatably mounted on an inclined slideway so that tension on the conveyor belt is maintained by the weight of the idler axle and idler roller. The inclined slideways may be provided by pivot arms and adjusting elements are provided to adjust the angles of inclination to the horizontal, thereby allowing adjustability of the belt tension. Detectors monitor the tracking path of the belt so that an adjustment to the angle of inclination of one of the slideways automatically corrects deviations from the tracking path. The magnetic separator is preferably a modular unit mountable in framework having an upstream feed assembly and a downstream collection assembly, either in single or multi-stage separator apparatus.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: April 7, 1992
    Inventor: Bo R. Arvidson
  • Patent number: 4896836
    Abstract: A hammer mill (10) having a feeder section (14) connected vertically above a mill section (12) such that feed material from a feed supply containing tramp metal (46) is introduced into the feed section and is divided therein into discrete quantities which are poured at a predetermined rate into the mill section. A continuously rotating feeder member (28) is situated in the vertically upper portion of the feeder section, the feeder member including means (40) for transporting a discrete quantity of feed material from a first position where the quantity is separated from the feed supply to a second position where the quantity is poured toward the mill section. A continuously rotating drum magnet (44) is situated below the rotating feeder member such that the quantities of feed material fall toward the drum magnet as the quantities are poured. In this manner, the tramp metal in the feed material is magnetically captured by the drum magnet and the remainder of the feed material falls into the mill section.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: January 30, 1990
    Assignee: Sprout-Bauer, Inc.
    Inventor: Wayne R. Mitchell
  • Patent number: 4883584
    Abstract: A process for separating special steel components from lump shredder scrap includes first removing the ferromagnetic content from the shredder scrap and thereafter dividing the shredder scrap into a normal size fraction and an undersize fraction. The undersize fraction is then treated by separating the special steel content from the undersize fraction by a magnetic drum having a field strength above 0.2 tesla.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: November 28, 1989
    Assignee: Metallgesellschaft AG
    Inventors: Hans-Peter Sattler, Bernd Nichtweiss
  • Patent number: 4882043
    Abstract: The disclosed invention provides method and apparatus for the separation of diamagnetic and paramagnetic particulate material. The invention utilizes a magnetic roll formed of either alternating permanent magnet and nonmagnetic spacer disc elements or alternating saperdisc elements and disc elements in which magnetism is induced. The dry admixture to be separated into magnetically homogeneous fractions is fed as a plurality of discrete streams onto spaced points on the upper surface of the rotating roll. The feed material undergoes lateral separation on the face of the roll and the materials of different properties part from the surface of the roll at different angular positions, thereby enabling their separate collection. For this purpose a plurality of receptacles are provided in a horizontally spaced relationship to collect the individual streams of diamagnetic material as they leave the surface of the rotating roll.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: November 21, 1989
    Inventor: Lothar Jung
  • Patent number: 4849099
    Abstract: Apparatus for receiving particulate product, spreading the particles in a thin layer, and feeding them to a surface of an electrostatic separator, comprising a hopper with a slot discharge opening above a vibrating inclined distribution plate over which the particles are distributed and move to a lower edge where they fall into the feed end of a substantially vertical chute which is capable of discharging the particles at a selected velocity in a generally horizontal direction, the particles passing through the hopper discharge slot being controlled by an adjustable gate to provide uniform feed to the distribution plate and to control the feed rate into the chute, the chute being adjustable to control velocity of particles leaving the chute, and the direction of discharge from the chute, and a bypass conduit to selectively conduct particles directly from the hopper to a point of discharge which avoids the vibrating plate and the vertical chute.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: July 18, 1989
    Assignee: Carpco, Inc.
    Inventors: Frank S. Knoll, Arnold H. Jackson
  • Patent number: 4842721
    Abstract: A materials separator apparatus comprising a base supporting a ramp type of materials receiving surface sloped longitudinally and transversely with respect to the base for directing commingled dielectric items and electrically conductive items of nonferromagnetic materials deposited on its upper end portion along a fall path extended longitudinally and transversely downward of the surface, and a planar series of substantially parallel permanent bar magnets supported in contiguous rows in a plane substantially parallel to the material receiving surface and sufficiently close thereto for establishing along the surface a spatially alternating array of oppositely directed static magnetic fields which extend in substantially parallel relationship transversely of the surface at an oblique angle with the fall path of the commingled items.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: June 27, 1989
    Assignee: Raytheon Company
    Inventor: Ernst F. R. A. Schloemann
  • Patent number: 4784760
    Abstract: Separation apparatus and method for separating relatively magnetic particles from a stream of particulate material made up of relatively magnetic and relatively non-magnetic particles. A mixture of the magnetic and non-magnetic particles flows in a three-dimensional stream in a common path closely adjacent to the wall of a channel. A magnet producing a strong magnetic field force is located adjacent the wall of the chamber to produce a strong horizontal magnetic force and a vertical force which is less than that of gravity. The free fall of the particles adjacent the channel wall is interrupted in the vicinity of the magnet to cause the particles to move away from the wall. Thereafter, the magnetic particles move back towards the magnet whereas the non-magnetic particles are not drawn away from their diverted path.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: November 15, 1988
    Assignees: Cryogenic Consultants Limited, Foskem (Proprietory) Limited
    Inventors: Jeremy A. Good, Etienne H. Roux
  • Patent number: 4668381
    Abstract: In separating a mixture of solid material particles including non-magnetic electrically conductive metals into a light fraction and a heavy fraction, where the light fraction includes the non-magnetic particles, the mixture is directed into an upwardly extending airflow passageway from an inlet channel extending laterally from the passageway. The inlet channel is spaced between the inlet and outlet ends of the passageway. An alternating magnetic field is provided adjacent the entrance of the mixture into the airflow passageway for accelerating the particles in the desired direction. The mixture is fed through the inlet channel into the airflow passageway in layer form, preferably as a single layer. A main flow of air passes upwardly through the airflow passageway from the lower inlet end and develops a highly turbulent vortex-like airflow. The airflow, in combination with the magnetic field, effects separation of the light and heavy fractions of the material.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: May 26, 1987
    Assignee: Lindemann Maschinenfabrik GmbH
    Inventor: J/o/ rg Julius
  • Patent number: 4631125
    Abstract: A midstream apparatus for the receipt, sampling, cooling, and blending of coal provides a continuous transfer capability from one or more barges containing coals of various grades to an ocean vessel requiring blended coal meeting given specifications. The apparatus is a barge mounted combination, having a number of receiving hoppers into which coal may be loaded by transfer from a series of supply barges, usually by a barge mounted clam shell bucket. A number of hoppers are provided so that coal from each barge, having a given specification, may be loaded into a single hopper. Each hopper has individually controlled transfer capabilities permitting the blending of coal of different qualities into a continuous stream.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: December 23, 1986
    Assignee: Ryan-Walsh Stevedoring Company, Inc.
    Inventor: Billy W. Parks
  • Patent number: 4557827
    Abstract: An electrostatic free-fall separator has a feeding arrangement located upstream of the separator for feeding of fine-particle material to be separated into the electrostatic free-fall separator, wherein the feeding arrangement is formed as a funnel with braking inserts of an electrically insulated material and has walls limiting at their lower edge a longitudinal outlet slot, wherein the funnel has an inlet which is formed by one wall portion which is parallel to the outlet slot and an opposite inclined guiding surface with a lower edge extending parallel to the one wall portion so as to limit simultaneously a passage leading to the outlet slot, and two substantially vertical electrodes are arranged below the passage at a distance from one another which is smaller than the width of the passage.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: December 10, 1985
    Assignee: Kali und Salz AG
    Inventors: Gunter Fricke, Iring Geisler, Helmut Zentgraf
  • Patent number: 4498987
    Abstract: A magnetic separator useful for treating chips in a machine tool is disclosed, which comprises a separating cylinder, a plurality of magnetic plates arranged at an outer periphery of the cylinder and spaced apart each other, an inlet for a fluid suspension at a middle part of the cylinder, outlets for a separated fluid at one end and for the suspended matter, such as machined chips, at the other end of the cylinder, and a screw conveyor inserted into the cylinder in such a way that the screw conveyor is contacted at its peripheral edge with an inner wall of the cylinder. The magnetic plates are arranged in a circle around the cylinder with the polarity of the adjacent magnetic plates arranged in a special sequence for generating a maximum magnetic flux toward the axial center of the cylinder. Also, the magnetic plates extend from the inlet near the middle of the cylinder to both outlets at opposite ends of the cylinder for achieving a strong magnetization of the chips suspended in the fluid.
    Type: Grant
    Filed: December 8, 1982
    Date of Patent: February 12, 1985
    Assignees: Inabac Corporation, AMT Co., Ltd.
    Inventor: Morimitsu Inaba
  • Patent number: 4333825
    Abstract: A dump pit for grain has a magnet cylinder fixedly mounted therein with its axis extending through an access door opening on the dump pit. A non-magnetic shell is slideably arranged over the magnet and is adapted to be retracted through the door opening so that the tramp metal accumulating on the shell will simply fall off when the shell is retracted.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: June 8, 1982
    Assignee: Industrial Magnetics, Inc.
    Inventors: Donald J. Wyland, Michael W. Stowe
  • Patent number: 4317717
    Abstract: An apparatus for separating a nonmagnetic conductive material from a nonmagnetic nonconductive material. The separation apparatus comprises a drum arranged in a tilted fashion and rotating in one direction about the longitudinal central axis and a chute for throwing a material being separated into the drum from the upper opening thereof. The material supplied through the chute into the drum is agitated by rotation of the drum, and the nonmagnetic conductive material of the material thus supplied into the drum receives an electromagnetic force produced by a magnetic field moving in a direction opposite to the direction of rotation of the drum, so as to be separated from the nonmagnetic nonconductive material. In order to increase the agitation effect for the material supplied into the drum, the chute is biased from the center of the upper opening of the drum to one side of the center depending on the rotational direction of the drum, and shoulder portions are provided on the inner peripheral wall of the drum.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: March 2, 1982
    Assignee: Kanetsu Kogyo Kabushiki Kaisha
    Inventor: Takato Nakajima
  • Patent number: 4277329
    Abstract: Electrically-conducting particles may be separated from mixtures thereof containing non-conducting particles by conveying the mixture through a magnetic field oriented angularly with respect to the part of conveyance. The magnetic field induces magnetic poles in the conducting particles, causing them to deflect from the path of movement of the mixture as they attempt to move in the angular orientation of the magnetic field. The non-conducting particles are unaffected, so that a separation may be achieved. The invention is applicable to a wide variety of materials, such as ores or tailings which contain desired electrically-conducting particles, such as, iron oxide, and unwanted gangue constituents.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: July 7, 1981
    Assignee: Maghemite Inc.
    Inventor: Patrick E. Cavanagh
  • Patent number: 4259181
    Abstract: An inlet stream of particulate material is successively split into smaller stream segments. The segments are spread across a conveyor belt in a magnetic or conductivity separator. Inlet and intermediate stages of the splitter include troughs of triangular cross section to concentrate the streams before splitting them. The flow direction is reversed in each stage to facilitate the axial concentration of the material stream.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: March 31, 1981
    Assignee: Cabot Corporation
    Inventors: Gonzalo S. Leon, Richard C. Fortier
  • Patent number: 4134829
    Abstract: Magnetizable particles are separated from a sludge which includes fine-grained particles and the magnetizable particles suspended in a carrier by creating a laminar flow of the sludge over a surface which is disposed at an angle to the horizontal. The surface is included in a magnetic system which has a plurality of supra-conducting magnets with coils which are energizable to provide alternate north and south poles longitudinally and transversely of the surface. The supra-conducting magnets each have an end adjacent the surface and short-circuited opposite ends to amplify the magnetic force in the direction of the surface.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: January 16, 1979
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventors: Hans Bender, Karl-Heinz Unkelbach, Wolf Zabel
  • Patent number: 4055489
    Abstract: A magnetic separator is provided with a plurality of successively disposed magnetic field producing members with each successive field being differently oriented so as to agitate the agglomerate of magnetic and non-magnetic materials as said agglomerate is moved from one field producing member to the next. Cleats are used to assist in moving the agglomerate so that as the agglomerate is moved from one field to the next, the magnetics snap, jump or rapidly move so as to drop or release the non-magnetics trapped with the magnetics.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: October 25, 1977
    Assignee: Magnetics International, Inc.
    Inventor: Warren G. Soley
  • Patent number: 4046681
    Abstract: A multiple matrix assembly for a magnetic separator including a container; a plurality of magnetic matrices arranged in a longitudinal stacked array in the container; each matrix having a feed area and a collection area on opposite longitudinal ends transverse to the longitudinal axis of the container and the flow through it; and having a peripheral portion surrounding it and extending longitudinally between the feed and collection areas, the matrices being disposed with the feed areas all facing in a first direction and their collection areas all facing in a second direction; inlet and outlet means in the container for feeding to and collecting from the matrices; and receptacle means, disposed between each pair of adjacent matrices, each of the receptacle means including a transverse member proximate and coextensive with a one of the feed and collection areas and a peripheral member extending longitudinally in one of the first and second directions from the transverse member along and sealingly engaged with
    Type: Grant
    Filed: July 10, 1975
    Date of Patent: September 6, 1977
    Assignee: Sala Magnetics, Inc.
    Inventors: Peter G. Marston, John J. Nolan
  • Patent number: 4033864
    Abstract: A multiple matrix assembly for a magnetic separator comprising a plurality, M, of magnetic matrices arranged in a longitudinal stacked array each matrix being fed by a number, p, of inlets and having its product collected by a number, p, of outlets; at least one partition means including a transverse member between each adjacent pair of matrices; a container for receiving the matrices and the partition means; each partition means and the longitudinal ends of the container including a number of ports, P, equal to p .times.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: July 5, 1977
    Assignee: Sala Magnetics, Inc.
    Inventors: John J. Nolan, Peter G. Marston
  • Patent number: 4031004
    Abstract: A feed system is disclosed herein for use with an electromagnetic eddy current materials separator for supplying material to be acted upon by the eddy current magnet directly into the regions strongest influence of the magnetic field of said magnet. Automatic blockage release means are provided to terminate jam-ups in the event that a blockage should occur in the delivery of feedstock to the region of influence of the magnetic field of the magnet.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: June 21, 1977
    Inventors: Edward J. Sommer, Jr., Garry R. Kenny, Frank S. Knoll, David W. Mitchell