Abstract: A method of separating a powder mixture is disclosed. A first magnetic field is applied to the powder mixture which may contains a non-magnetic metal powder and a contaminant powder. A field strength of the first magnetic field magnetizes the non-magnetic metal powder and leaves the contaminant powder non-magnetized. A second magnetic field is applied to the powder mixture to separate the magnetized metal powder from the non-magnetized contaminant powder.

Abstract: A system for separating an analyte from other components of a sample contained in a receptacle, where the system includes a receptacle holding station and a magnetic separation station. The receptacle holding station is configured to receive and hold a receptacle and includes one or more magnets positioned to apply a magnetic field to the contents of the receptacle. When present in the receptacle holding station, a receptacle remains stationary relative to the one or more magnets. The magnetic separation station includes one or more magnets and is constructed and arranged to perform a magnetic separation procedure on the contents of a receptacle transported from the receptacle holding station to the magnetic separation station by an automated receptacle transport. The magnetic separation procedure includes isolating an analyte immobilized on a magnetically-responsive solid support within the receptacle and removing other components of the sample from the receptacle.

Abstract: A flow enhanced method and system for flow non-linear magnetophoresis (F-NLM) is described. By tuning an external field frequency and the flow rate the migration velocities of different bead types may be caused to differ by several orders of magnitude over an extended range of frequencies to allow for separation of particles. Use of such efficiency in separation in bio-separation and similar assays is described.

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.

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.

Abstract: A particulate feed comprising a first particle type and a second particle type is separated by providing a separation apparatus having a separation vessel having a top and a bottom, and wherein the separation vessel includes inwardly sloping side walls. A magnet structure has a first pole positioned exterior of and adjacent to each of the side walls of the separation vessel, and a second pole positioned above the separation vessel. A mixture of the particulate feed and a ferrofluid is introduced into the separation vessel, and the particulate feed is separated into a first particle fraction comprising a majority of the first particle type, which sinks in the separation vessel, and a second particle fraction comprising a majority of the second particle type which floats in the separation vessel.

Abstract: The present invention provides a system that includes a plurality of cache engines coupled to a computer network such as the Internet, and a cache memory associated with each of the plurality of cache engines. The cache memory is allocated to store information of a plurality of users participating in an online communication session. Each user is allocated a normal section and an exception section in the cache memory, the normal section storing predictable behavior of the user and the exception section storing unpredictable behavior of the user. All users' session environment is updated by sending information on whether a specific user's behavior is predictable or unpredictable and by retrieving the appropriate user behavior from the normal or exceptions sections in the local cache memory.

Abstract: An apparatus and method for removing ferrite particles from a material flow introduced into the apparatus. The apparatus has a housing supporting a magnetized roller with which the material flow is brought into contact with to extract the ferrite particles. The roller has an outer surface which extracts and captures the entrained ferrite particles along a highly magnetized pathway formed by a spiral extending along and circumventing a portion of the outer surface of the roller. The spiral can be an exposed magnetic pole exerting a radial magnetic force induced from a magnet core in contact with the spiral on entrained ferrous particles in the material flow, thus attracting the particles to the magnetic poles on the pathway.

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.

Abstract: A latch mechanism for a door has first and second latches, a handle, a first cam connected to the first and second latches, a second cam and a third cam connected to the handle such that movement of the handle operates the first and second latches by transmitting movement from the third cam to the first cam through the second cam. One or more rods may be used to connect the latches and or handle. The first handle may simultaneously operate the first and second latches. A second handle may also be provided for simultaneously operating the latches. The first cam includes a finger and the second cam includes a projection that is selectively engageable with the finger. Movement of the third cam causes movement of the projection which in turn causes movement of the first cam when the projection is engaged with the finger of the first cam. The first and second latches may be locked by disengaging the projection and the finger.

Abstract: In an embodiment, a separating member is introduced into the compound, the member comprising a separating surface, the particles are pulled from the compound, by using a magnetic field, to be adhered to a separating surface, the effect of the magnetic field is eliminated, and the particles (16) are collected thereafter from the separating surface. In this way, it is possible to collect particles effectively even from a large volume. It is also easy to transfer particles into a small volume. The invention can be employed in various applications, especially in the fields of biotechnology, biochemistry, and biomedicine.

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.

Abstract: A system for processing wastewood. The system may be mounted on a towable chassis. The wastewood is received at one end of the system and metal contaminants are removed from the wastewood. The wastewood is then separated according to size wherein a first size of wastewood is further processed by the system and a second size is removed from the system for subsequent re-processing. Unwanted paper and plastic contaminants are removed from the wastewood, and the wastewood of the first size is subjected to a further separating step wherein it is again separated according to size into usable end products.

Abstract: A system for processing wastewood. The system may be mounted on a towable chassis. The wastewood is received at one end of the system and metal contaminants are removed from the wastewood. The wastewood is then separated according to size wherein a first size of wastewood is further processed by the system and a second size is removed from the system for subsequent re-processing. Unwanted paper and plastic contaminants are removed from the wastewood, and the wastewood of the first size is subjected to a further separating step wherein it is again separated according to size into usable end products.

Abstract: The operation of an apparatus for separating non-magnetizable metals, in particular non-ferrous metals, from a solid mixture by means of an alternating magnetic field is improved and the construction of the apparatus simplified by arranging the magnetic field generator adjacent to a straight, curved or bent slideway of a material of poor electrical conductivity.

Abstract: A magnetic process and apparatus for separating out small electrically conductive particles dispersed in a finely ground, relatively non-conductive medium by means of magnetic fields. More specifically, a steady or relatively slowly varying field is provided, and a higher frequency magnetic field induces magnetic dipoles into the conducting particles, which are displaced by the steady magnetic field to thereby effect separation. The magnetic separation process selectively applies a force on a conductive particle so as to either remove it from the bulk of the non-conductive material or increase the concentration of conductive particles in a given volume of space. The effectiveness of the separation process improves with increasing size of the particle; however, the process can be used for particle sizes that would be classed as "very fine".

Abstract: A magnetic separator for separating relatively magnetic particles from relatively non-magnetic particles comprises a superconducting magnet providing a uniform magnetic field and a current carrying conductor dispersed in the field such that relatively magnetic particles are captured by the conductor. The current conductor is in the form of a matrix having either randomly, radially, spirally or parallelly set pairs of wires.

Abstract: A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.

Abstract: A magnetic separator for particulates containing prime material and ferrous particles includes a housing having a removable cover having a central throated inlet along its length. A pair of vertically and laterally displaced hollow metallic rolls are journaled upon the end walls and extend the length of the housing, and enclose an elongated semi-cylindrical permanent magnet within each roll, the magnets being of opposite polarity. A pair of elongated, vertically and laterally displaced flow control dampers extend along the length of the housing and are pivotally mounted thereon and define with the inlet and rolls a vertical first feed path for the particulates. A first elongated hopper underlies the first flow path and has an elongated outlet overlying a first conveyor for receiving and delivering prime materials from the housing. Second and third elongated hoppers are arranged upon opposite sides of the first hopper under the rolls respectively.

Abstract: A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.

Abstract: A magnetic particle separating device in which magnetic particles entrained or contained in coolants, lubricants or working fluids are separated and removed by the application of magnetic fields.

Abstract: A magnetic separator having two rotating magnetic drums of opposite polarity which form between them a working air-gap, and having directionally magnetized block magnets on each side of both end-faces of the magnetic drums in a closed magnetic circuit, the magnets being connected together on one side of their poles, in pairs with unlike poles, by means of soft-iron parts, and being provided, on the other side, with pole shoes in which are mounted soft-iron parts designed as axes, the drums each being arranged in a housing comprising slide plates which are located in the working air-gap and which converge at the inlet and diverge at the outlet, the said drums comprising axial grooves distributed radially around their peripheries, or having peripheries of star-shaped cross section.

Abstract: A materials separator apparatus comprising a stacked array of horizontally oriented and vertically spaced separator stages, which may be interconnected by a material conductor disposed for receiving commingled materials from an upper stage and feeding it to an input portion of a lower stage, each stage including a vibrating, endless belt supported for carrying a stream of commingled materials longitudinally over a steady-state magnetic array of spatially alternating, oppositely polarized magnets disposed substantially parallel to one another and extended transversely at an oblique angle to the stream whereby electrically conductive items of nonferromagnetic material passing over the magnetic array are deflected laterally out of the stream, the materials remaining in the stream may be discharged from the belt by passing them over a roller which may be magnetized for segregating dielectric nonferromagnetic material from ferromagnetic material.

Abstract: A materials separator for segregating nonferromagnetic conductors from commingled nonferromagnetic materials, the separator including guide means for directing nonferromagnetic materials into a stream, and steady-state magnetic means comprising a plurality of north and south magnetic poles arranged in stripes of alternating polarity at a substantially uniform angle to the stream for establishing in the path of the stream a periodic series of oppositely directed, static magnetic fields which induce eddy-currents in the conductors.

Abstract: The device comprises a magnetic circuit having an air gap into which a mixture of magnetically attractable and magnetically non-attractable materials can be passed. The magnetic circuit includes a rotatably mounted separator roller comprised of magnetizable material, with the periphery of the roller being located adjacent to the air gap. The magnetic circuit further includes a permanent magnet arrangement located exteriorly of the separator roller and operative for establishing a flow of flux through the magnetic circuit and across the air gap and operates for magnetizing the separator roller by induction so that magnetically attractable material in a mixture entering the air gap will be segregated by the separator roller.

Abstract: A unique, high-grade magnetite obtained from fly ash, the use thereof in the cleaning of coal, and low iron content fly ash.