Abstract: In forming magnetic blocks, a first permanent magnet may be lowered to the bottom of an upwardly open vessel, the vessel may be already filled or may be then filled with liquid and, while forcefully maintaining the first permanent magnet in that position, further permanent magnets are gradually inserted into the vessel in a direction perpendicular to their resulting joint contact surfaces, where the adjacent surfaces of the superimposed permanent magnets have an opposite polarity, while during insertion of a further permanent magnet, the liquid is drained from the space in the vessel under that inserted magnet, whereby the motion speed of the inserted magnet is controlled as it bears down on the permanent magnet lying beneath it.

Abstract: Systems and methods are providing for aligning an accessory to an electronic device interface. In particular, some accessories such as optical filters and lens require specific alignment to operative properly. Using a first magnet array positioned around the periphery of the interface and a second magnet array positioned within the accessory, a user can position an accessory on the electronic device and rotate the accessory until the magnets of each array exert a force on an opposing magnet of the other array. By distributing the magnets in a manner that includes no repeating segments, only a single alignment of the accessory relative to the interface can allow the magnet arrays to be properly in opposition.

Abstract: A high-performance variable-magnetic-field dipole-ring magnetic circuit is provided. Specifically, provided is a permanent-magnet magnetic field generator having inner and outer dipole rings which share a central axis, and a yoke which surrounds the dipole rings, wherein a unidirectional variable magnetic field is generated in a space within the inner dipole ring. The generator has a fastener for fixing the inner dipole ring, and a rotator for allowing the outer dipole ring to rotate around the central axis. In the generator, each of the inner and outer dipole rings has a plurality of permanent magnets arranged in such a ring shape that a magnetization direction of the permanent magnets can make a full rotation per half circle of the ring.

Abstract: A method and device for separating from samples magnetic particles that contain capture compounds on their surfaces. The device includes a sheath including a magnet and including orienting pin adapted to concentrate or direct a magnetic field of the magnet; and a magnetizable plate with lid holes for receiving a vessel lid of a vessel, the magnetizable plate configured to receive the sheath and position the orienting pin over the vessel lid. In one method, magnetic beads with attached molecules are collected in the lids of the reaction vessel by the magnetic separator device provided herein and the separated magnetic particles, which carry the molecules of interest through affinity-based attachment chemistry and are held in the lid by the magnet of the device, are released into a new vessel containing a solution by removal of the separator device without the need for pipettes or liquid handling devices.

Abstract: An electric power connection part of an electromagnetic clutch field coil assembly connected with an electric power connector at a side of a vehicle engine, includes a housing assembly connected to the field coil assembly with electric wires, which is extracted therefrom, interposed therebetween; a discharge device for absorbing a surge voltage; and a magnetic field elimination device for eliminating a residual magnetic field are injection molded and combonined within the housing assembly. Accordingly, the electric power connection part has an advantage in that it is not directly influenced by heat radiated from a field coil assembly so that electric/electronic devices can be prevented from being damaged; since an epoxy applying process for attaching electric/electronic devices such as a discharge device and a magnetic field elimination device is omitted, a manufacturing process is greatly simplified; and the number of components are reduced so that manufacturing process thereby decreasing costs.

Abstract: A method and apparatus for dynamic magnetic field control using multiple magnets. Control methods and system means are described that allow dynamically changing the magnetic field generated at a point in space by a multiplicity of magnets.

Abstract: Disclosed herein is an apparatus. The apparatus includes a first movable member and a second movable member. The first movable member includes a magnet. The first movable member is configured to be connected to a first housing section of a portable electronic device. The second member includes a first end and a second end. The first movable member is between the first end and the second end. The second member is configured to be connected to a second housing section of the portable electronic device. The apparatus is configured to move the second housing section in a first direction in response to a first movement of the first movable member. The apparatus is configured to move the second housing section in a second different direction in response to a second movement of the first movable member.

Abstract: A method for creating a cylindrical magnetic field with accompanying linear electric vector potential, and projecting it into a substance, and a method for modulating this field. In one embodiment the field is projected into a person for therapy with a circumferentially magnetized ferromagnetic cylinder. This field is then modulated with toroidally wound coil to carry the modulated signal deep into the body. A principal therapeutic benefit of this embodiment is rapid pain relief.

Abstract: There is described a cylinder body (10) for orienting magnetic flakes contained in an ink or varnish vehicle applied on a sheet-like or web-like substrate, which cylinder body (10) has a plurality of magnetic-field-generating devices (50, 60) disposed on an outer circumference of the cylinder body (10). The cylinder body (10) comprises a plurality of distinct annular supporting rings (40) distributed axially along a common shaft member (20), each annular supporting ring (40) carrying a set of magnetic-field-generating devices (50, 60) which are distributed circumferentially on an outer circumference of the annular supporting rings (40).

Abstract: The invention relates to a safety apparatus for avoiding a possible fire risk in an operating magnet which can be supplied with electric current, having at least one coil former (14) which is arranged in a housing (76, 82) and on which a coil winding (16) is fitted, and having an operating part (20, 36) which is at least partially guided in the coil former (14). As a result of at least parts of the operating magnet being equipped with active and/or passive safety means of the apparatus in order to effectively counteract the risk of fire, the safety means are no longer arranged remote from the actual event, for example in the form of a fuse in the electrical supply circuit, but rather directly at the location of the event where the possible fire or scorching situation can directly occur.

Abstract: An assembly includes a container that contains a fluid composition having magnetic substances and a magnetization device that makes it possible to produce a pattern on a substrate onto which said composition has been deposited, the magnetization device including a holder and two magnets, at least one of which is in the form of a flexible sheet, the two magnets being at least partially superposed so that the field lines that they generate in combination with one another result from the interference between the field lines of each of the magnets.

Abstract: A ferromagnetic shape memory alloy comprising 25-50 atomic % of Mn, 5-18 atomic % in total of at least one metal selected from the group consisting of In, Sn and Sb, and 0.1-15 atomic % of Co and/or Fe, the balance being Ni and inevitable impurities, which has excellent shape memory characteristics in a practical temperature range, thereby recovering its shape by a magnetic change caused by a magnetic-field-induced reverse transformation in a practical temperature range.

Abstract: A displacement device is provided with a linear motor which comprises a first part comprising magnetic strips and a second part comprising a coil block. The parts are connected via a linear guide. The second part is movable with respect to the first part in a conveying direction extending parallel to the guide. The displacement device further comprises an connected to said second part, which is located on a side of the first part remote from the second part. The displacement device can be used is a component placement device.

Abstract: A magnetically actuated system includes a conductor and a magnetic field apparatus to generate a magnetic field. The magnetic field apparatus includes magnets and magnetically permeable materials to focus the magnetic field in areas of the conductor that produce a drive torque when the conductor carries a current.

Abstract: This invention discloses a magnet for use as a printing plate or printing head that is used for aligning flakes or particles in a paint or ink. A composite sheet or block of magnetizable material is selectively magnetized so that a magnet is formed within the sheet or block that has a shape of a predetermined image, logo, or indica. Dies are used to magnetize the magnetizable material and preferably the does contact the material to be magnetized. A pre-magnetized sheet such as a refrigerator magnet may be re-magnetized differently so that a magnetic image is encoded therein for use as a printing plate. Preferably the printing plate is flexible so that it can be formed to a curved surface of a cylinder or drum for printing. Conveniently these flexible magnets can be changed for other designs and placed on the same drum for use in printing.

Abstract: The invention relates to an electromagnetic system for biosensors, in which the system can switch quickly between high magnetic gradients, without the need of movement of mechanical elements. This is realized by two independent electromagnetic units (1,1? 2, 2?) which are separated in the region of the pole shoes over a gap, in which a sample volume is arranged by a cartridge (3), and in which the sensor surfaces of the biosensor are located at one or more inner surfaces of the cartridge (3).

Abstract: The present invention relates to a magnetic suspension structure having one or two active axes, specifically suited to the wheels of gyroscopic actuators. This type of device is intended to be on board maneuvering satellites. The gyroscopic actuator enables ground testing of a gyroscopic wheel along any axis. It has a maximum of two active axes and it is capable of taking up strong transverse torques. The gyroscopic actuator includes a magnetic suspension obtained by the combination of a passive thrust and an active center finder.

Abstract: An element for generating a magnetic field, having an annular frame for receiving an annular magnet which rotates with a turboshaft. The magnet is mounted in the frame such that the frame stabilizes and guides the magnet mechanically. In order to specify an element for generating a magnetic field which reliably fixes and guides the magnet, the magnet is connected to the frame by at least one spot weld.

Abstract: A surgical portal apparatus for receiving medical instrumentation includes a portal member adapted for passage through tissue for providing access to an underlying tissue site, and having a longitudinal opening extending therethrough. The portal member has a magnetic material for creating a magnetic field adapted to urge magnetically responsive instrumentation at least toward the longitudinal opening to permit passage therethrough and use of the instrumentation in performing a medical procedure adjacent the tissue site.

Abstract: The incidence of half-select errors during MRAM programming has been significantly reduced by giving the free layer a shape that approximates an X so that, when the free layer switches, the magnetization in the arms of the X guides the magnetization in the central section (the X's intersection area) causing it to rotate towards the hard axis in two opposing directions. This raises the free layer's switching energy barrier, thereby reducing half-select errors.

Abstract: Apparatus and methods for guiding one or more tools are provided. In at least one specific embodiment, the apparatus for guiding one or more tools can include an elongated member. The elongated member can have one or more switchable magnets disposed thereon.

Abstract: This invention provides a direct printable rubber magnet, which includes a rubber magnet layer and a coating layer. The coating layer combines with the surface of rubber magnet layer. This coated rubber magnet is printable, write-able and color paint-able on the coated surface. This invention makes the printable coating layer directly coated on the magnet layer to reach the same function as existing printable flexible magnet which usually have to be laminated with adhesive and PVC or paper on magnet, therefore, the process technique is much more simple, reasonable, easier than previous art, and it is more cost effective also. Moreover, the printable rubber magnet from this invention is quite convenient for recycling, as it does not have the cost caused by the simultaneous recycling of the plastic or the paper and so on.

Abstract: A method is described wherein the acceleration of a beam of charged particles is achieved using the properties of conductors to limit the penetration of magnetic and electric fields in short times compared to natural time constants. This allows the use of induction electric fields with a Curl localized to a gap to accelerate particles while coupling the accelerated beam to a power supply. Two methods of coupling the particle beam to the power supply are disclosed as exemplary.

Abstract: The invention relates to an apparatus having an electromagnet, comprising a coil and magnetic-field guide means, which at least partially surround the coil. According to the invention, the coil is provided with a sprayed or cast casing, wherein the magnetic-field guide means are formed from a material which comprises ferromagnetic metal particles and plastic material. The invention also relates to a clutch having an apparatus such as this, and to a method for production of an electromagnet.

Abstract: A magnetic device combined with a Velcro tape comprises: a magnet body having a surface equipped a groove; a Velcro tape placing in the groove for functioned with magnetic and hooking force from both the magnet body and the Velcro tape. The Velcro tape can also directly connect on the surface of the magnet body.

Abstract: Various example embodiments are disclosed. According to one example embodiment, an apparatus may include a voltage source coupled to a motor via a diode, the diode coupled to the motor and the voltage source, a rechargeable battery, and a motor. The diode may be configured to allow current to flow from the voltage source to the motor. The motor may be configured to spin a disk upon which a plurality of magnets are mounted. The apparatus may be configured to recharge the rechargeable battery with the voltage source and to enable the rechargeable battery to supply power to the motor when a voltage of the voltage source drops below a threshold voltage level.

Abstract: A magnet assembly is provided including a housing having a first end and a second end. A magnet is placed within a recess formed in the first end of the housing and a spring is positioned in at least a portion of the second end of the housing. A method of mounting a magnet assembly in a tool is provided. The method includes providing a magnet assembly including a housing having a recess formed in a first end of the housing and a spring positioned in a second end of the housing. The method further includes placing the magnet assembly into an opening defined in a tool and placing a magnet into the recess, and pressing the magnet against the spring to position the magnet within the tool.

Abstract: An inline electromagnetic tool actuator incorporates an actuator housing, an elongated armature, a tool assembly, spaced-apart return magnets, at least one drive magnet, and at least one magnet wire. The elongated armature is located inside the housing, and is adapted for reciprocating linear movement along a notional assembly axis. The tool assembly is operatively attached to the armature. The return magnets are located inside the housing, and are coaxially aligned with the armature. The return magnets have respective inward facing surfaces defining respective magnetic poles. The drive magnet is affixed to the armature, and is arranged between the return magnets. The drive magnet has opposing outward facing surfaces each of like polarity to adjacent inward facing surfaces of the return magnets. The magnet wire is coiled about the armature.

Abstract: A powdered metal electromagnetic is provided that has much less variance between units, increased frictional drag, reduced wear of itself and the brake drum disk during use and an increased resistance to moisture due to the use of a donor material that increases performance and reliability. In addition it can withstand much higher surface speeds while producing higher frictional drag.

Abstract: There is provided a position detector by which output having linearity can be obtained in a wide range, which has a movable member 2 that is magnetized into N-poles 3 and S-poles 4 arranged in a movable direction and two magnetic detection elements 5 that are arranged in the movable direction in face of the movable member 2 and that detect variation of magnetic field, in which there are performed an operation (A?B)/(A+B)+2 when A?0 and A+B?0 (wherein A and B are detection signals of the two magnetic detection elements 5), an operation (A+B)/(B?A) when A<0 and B?0, and an operation (A?B)/(A+B)?2 when B<0, and A+B<0.

Abstract: A magnetic levitation system for immobile patients in a wheelchair is disclosed. A magnet multi-pole configuration that is mechanically stable is provided that lifts the body and/or load shifts (rotates the body from side to side) the body. Based on a multi-pole configuration of permanent magnets in the pelvis, a corresponding multi-pole configuration for magnet repulsion is placed below the patient, typically as part of the wheelchair. Alternatively, a unipolar repulsion with mechanical patient restraint is implemented to achieve body lift or levitation. Either permanent magnets or electromagnets, optionally with magnetic sensor-mediated active computerized feedback control below the body, are sufficient to implement a complete multi-pole repulsive configuration that is mechanically stable. The apparatus reduces compressive force on soft tissues disposed between a human pelvis and a wheelchair seat.

Abstract: An external magnet provided outside a sealed container is movable with respect to the sealed container, and an external member moves the external magnet. An internal magnet provided in the sealed container is movable with respect to the sealed container, and an internal member is moved by movement of the internal magnet. The external magnet and the internal magnet are arranged in such a manner that the internal magnet is moved by the action of a repulsive force between the external magnet and the internal magnet based on movement of the external magnet.

Abstract: A magnetic levitation lithography machine having a low spring stiffness to minimize disturbances of the first structure and which is capable of dynamically controlling the first structure in one or more degrees of freedom. The machine includes a radiation source, a patterning element configured to define a pattern, a projection element, the projection element configured to project the pattern onto a substrate when radiation from the radiation source is projected through the projection element; and a substrate take configured to support the substrate. The substrate take includes a second structure, a fine stage, and a magnetic support configured to support the fine stage adjacent the second structure.

Abstract: A primary disc and the secondary discs are each fitted with magnetic means, typically in the form of permanent magnets of the same polarity, located along a radial line from the centre point of the discs, and arranged generally transverse to the axis of rotation of the respective disc. As shown in the drawings, these magnets are also located at or adjacent to the periphery of the disc(s). The magnets are embedded into each of the primary and secondary discs such that the faces of the magnets are flush with the exterior faces of the primary and secondary discs. In the embodiment, each of the magnets embedded in the primary disc has a North pole which is aligned with a North pole of a magnet embedded in the secondary disc. Each of the South pole of those magnets embedded in the primary disc has a South pole which is aligned with a South pole of a magnet embedded in the other secondary disc.

Abstract: A method for magnetic fermentation is provided which includes subjecting a biological material in a medium to a static magnetic field in order to affect fermentation of the biological material into a fermented product. The fermentation reaction may occur in an acidic or alkaline medium. The magnetic field may be a positive or negative magnetic field. The magnetic field or other parameters associated with the fermentation process may be monitored with one or more sensors and the magnetic field may be modulated accordingly.

Abstract: A plunger for use with a solenoid having a winding defining a bore is provided in an embodiment in accordance with the present invention, comprising a plunger first end, a plunger second end opposite the plunger first end, and a plurality of through-holes defining eyelets disposed in the plunger second end. The plunger first end is adapted to extend within the bore and the plunger second end adapted to extend from the bore. The eyelets are adapted to accept a cable therethrough. In another embodiment, the eyelets are substantially the same size, substantially equally spaced and substantially collinear. In another embodiment, the eyelets are in a staggered arrangement. In another embodiment, the plunger first end comprises a retention portion adapted to couple with a suitable coupler adapted to retain the plunger first end within a bore of a solenoid.

Abstract: With a view toward implementing a thermal controlling method for making reversible a temperature characteristic of a magnetic field generator using permanent magnets small in Hcj, a magnetic field generator whose temperature characteristic is reversible, using permanent magnets small in Hcj, and an MRI apparatus provided with such a magnetic field generator, there is provided a method for controlling the temperature of a magnetic field generator having a pair of disc-shaped permanent magnets whose magnetic poles opposite in polarity to each other are opposed to each other with spacing defined therebetween, and a yoke that forms return passes for magnetic fluxes of the permanent magnets, comprising the steps of raising the temperature from room temperature to a temperature higher than the room temperature, maintaining the temperature higher than the room temperature, and lowering the temperature from the temperature higher than the room temperature to the room temperature, whereby the temperature characteristi

Abstract: A two-axis micro-electro mechanical system (MEMS) device includes a moving plate, a stage, a driving coil, a pair of magnets, and a yoke magnetic body. The moving plate is supported coaxially on a first axis to move pivotably about the first axis. The stage is supported coaxially on the second axis in an inner region of the moving plate. The driving coil includes a coaxial coil portion arranged along the first axis of the driving plate and divided at a center by the stage, and a first connecting coil portion and a second connecting coil portion. The yoke magnetic body is disposed between the pair of magnets in a region above or below the magnets and is formed of a material capable of being magnetized by the magnets in order to suddenly change a magnetic flux density according to a distance between the pair of magnets.

Abstract: A microelectrical mechanical system (MEMS) actuator having electrically conductive coils that create first magnetic fields that are opposed by a second magnetic field is disclosed. The actuator includes two coils having dual, interspersed Archimedean spirals. Within an actuator, one coil is arranged with spirals that proceed clockwise, while the other coil is provided with spirals that proceed counterclockwise. An electrically conductive bridge mechanically couples the two coils of each actuator to a mirror. Opposing magnetic fields are created to provide a force that urges the coils to expand so that the outermost portions of the coil extend upward, away from the substrate, and lift the bridge and mirror. Control current may then be modulated to increase and decrease the coil's magnetic field strength thereby increasing and decreasing the coil's extension to raise and lower relative to the substrate.

Abstract: Superconducting cables and magnetic devices are disclosed.

Abstract: A microelectrical mechanical system (MEMS) actuator having electrically conductive coils that create first magnetic fields that are opposed by a second magnetic field is disclosed. The actuator includes two coils having dual, interspersed Archimedean spirals. Within an actuator, one coil is arranged with spirals that proceed clockwise, while the other coil is provided with spirals that proceed counterclockwise. An electrically conductive bridge mechanically couples the two coils of each actuator to a mirror. Opposing magnetic fields are created to provide a force that urges the coils to expand so that the outermost portions of the coil extend upward, away from the substrate, and lift the bridge and mirror. Control current may then be modulated to increase and decrease the coil's magnetic field strength thereby increasing and decreasing the coil's extension to raise and lower relative to the substrate.

Abstract: Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve, particularly a pressure-control valve for clutch operation in an automatic motor vehicle transmission, and comprising an electronic control device, whereby the magnet core may be moved back and forth between a control region and a hold region with a magnetic hold position of the magnet armature and a defined transition from the control region to the hold position may be executed and whereby mechanisms are provided for recognition of the movements of the magnet armature.

Abstract: An ignition coil cassette having bushings retained by an irregularity of the bushings being encased by epoxy. As a result, the process by which the bushings are installed into the ignition coil cassette avoids the cost associated with the overmolding installation process, and further avoids the potential for damage associated with the ultrasonic insertion process. The irregularity is located generally adjacent one end of each of the bushings and may be, for example, in the form of an undercut or a protrusion.

Abstract: An automotive emission control valve, an EGR valve in particular, has a solenoid as the actuator for a valve element. The solenoid has a stator and an armature. Various features in construction of the armature and stator pole pieces improve magnetic efficiency to provide increased armature force per unit of solenoid current.

Abstract: An ignition coil cassette having bushings retained by an irregularity of the bushings being encased by epoxy. As a result, the process by which the bushings are installed into the ignition coil cassette avoids the cost associated with the overmolding installation process, and further avoids the potential for damage associated with the ultrasonic insertion process. The irregularity is located generally adjacent one end of each of the bushings and may be, for example, in the form of an undercut or a protrusion.

Abstract: An emission control valve is operated by an electric actuator that has an electric coil, stator structure, and a positioning mechanism, including an armature that is selectively positionable along an axis, for selectively positioning a valve element. The stator structure is separated from the armature by an air gap that includes a non-ferromagnetic guide sleeve that is in surface-to-surface contact with the armature for guiding armature motion along the axis. The guide sleeve and the stator structure are in surface-to-surface contact for mutually concentricity with the axis. Along a region of mutual overlapping a minimum air gap is provided between the guide sleeve and the stator structure by radial spacing between the stator structure and the guide sleeve. Various embodiments are disclosed.

Abstract: In order to provide a connecting means for the releasable connection of a first component and a second component, in particular, for the releasable connection of furniture and machine parts, comprising a first connecting element arranged on the first component and a second connecting element arranged on the second component, wherein the first connecting element and the second connecting element are releasably connected to one another in the connected state of the components and one of the connecting elements comprises a retaining part which interacts with the other one of the connecting elements in a retaining position such that any relative movement of the first connecting element and the second connecting element along a direction of connection is prevented and which allows a relative movement of the first connecting element and the second connecting element along the direction of connection in a release position, which makes a reliable releasable connection of two components with one another possible witho

Abstract: A magnet system having a magnet coil (41) surrounded by a magnet pot (40), the magnet coil (41) being electrically connected to contact prongs (32), an interspace being formed between the outside of the magnet coil (41) and the inside of the magnet pot (40), in which interspace a free-flowing compound is cast. The magnet coil (41) is surrounded by a thin-walled coil insulating frame (1, 20, 30) on which tubular contact guide elements (6, 7) are integrally molded. The thin-walled coil insulating frame (1, 20, 30) is made of a thermally stable plastic material mixed with mineral fillers.

Abstract: An individual ignition type ignition coil is adopted to an engine having a plastic head cover. A secondary coil is positioned at an inner side of a primary coil, and between a secondary bobbin and a center core, a soft epoxy rein is filled The soft epoxy resin has a dent according to a compression molding and has a glass transition point Tg which satisfies a specified condition. The secondary bobbin is formed by PTS and the primary bobbin is set to the primary coil at the outer side of the secondary assembling body, and under an assembling condition the winding is carried out.

Abstract: The invention provides an electromagnetic actuator comprising at least two coils (5, 6) associated with ferromagnetic cores (11) and disposed facing each other, and a moving element (1) extending between the coils (5, 6) and associated with an actuator rod (2), the coils (5, 6) comprising conductors (7) with ends (16) extending transversely to an axis (100) of the coils (5, 6) and fixed directly to pins (21) carried by a connection plate (18) fixed on one side (7) of the coils (5, 6) and including a connection circuit (24) providing connections with a connector (25) also carried by the connection plate (18).