Abstract: A permanent magnet in which the magnetization direction varies with location to optimize or restrict a magnetic field property in a selected direction at a selected point. The magnetic field property may be, for example, the transverse magnetic field, axial magnetic field, axial gradient of the transverse magnetic field, transverse gradient of the transverse magnetic field, axis gradient of the axial magnetic field, transverse gradient of the axial magnetic field, the product of the transverse magnetic field and the transverse gradient of the transverse magnetic field, the product of the transverse magnetic field and the axial gradient of the transverse magnetic field, the product of the axial magnetic field and the transverse gradient of the axial magnetic field, or the product of the axial magnetic field and the axial gradient of the axial magnetic field.

Abstract: The invention disclosed is a method of levitating one or both ends of an object permanently or temporarily, or altering the distance between two objects or the momentum of an object by manipulating the direction of the magnetic field of a permanent or electromagnet.

Abstract: A security device, according to various aspects of the present invention, detects removal of the device from a provided surface. The security device includes a body; at least one magnet coupled to the body; and a sensor coupled to the body proximate to at least one of the at least one magnet. The sensor does not move with respect to the at least one magnet. The at least one magnet magnetically couples the body to the surface. Each one magnet provides a magnetic flux. When the body couples to the surface, at least a portion of the magnetic flux conducts away from the sensor. When the body is not coupled to the surface, at least a portion of the magnetic flux from at least one magnet of the at least one magnet conducts through the sensor thereby indicating removal of the body from the surface.

Abstract: An exemplary electromagnetic coupling device includes an electromagnet and a vane member that is selectively magnetically coupled with the electromagnet. A non-magnetic slider layer is supported on one of the electromagnet or the vane member such that the slider layer is between the electromagnet and the vane member. The slider layer maintains a spacing between the electromagnet and the vane member. In a disclosed example, the electromagnetic coupling device is used for coupling an elevator car door to a hoistway door for moving the doors in unison between open and closed positions.

Abstract: An expandable energy storage for portable electronic devices is disclosed. The expandable energy storage includes magnetic-capacitor (MCAP) energy storage sticks and a controller. The MCAP energy storage sticks are arranged in parallel and provide electrical power to a portable electronic device. Each MCAP energy storage stick has a positive terminal, a negative terminal, and a controlling terminal for coupling with the portable electronic device. The controller couples the controlling terminals of the MCAP energy storage sticks to a system data terminal.

Abstract: First and second components may be precisely attached to form an apparatus. In an example embodiment, a first component includes a first field emission structure, and a second component includes a second field emission structure. The first and second components are adapted to be attached to each other with the first field emission structure in proximity to the second field emission structure such that the first and second field emission structures have a predetermined alignment with respect to each other. Each of the first and second field emission structures include multiple field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to the predetermined alignment of the first and second field emission structures within a field domain. The first and second field emission structures are configured responsive to at least one precision criterion to enable a precision attachment.

Abstract: A portable electronic device (100) includes a base (50), a cover (10) and a sliding mechanism (30). The cover is slidably mounted on the base via the sliding mechanism. The sliding mechanism includes a static member (31) fixed on the base, a sliding member (35) slidably mounted on the static member and fixed on the cover, and a linear motor (36) configured for driving the sliding member to slide on the static member. When the static member is electrified, the sliding member is floated by a magnetic repulsive power formed between the static member and the sliding member to slide on the static member without friction.

Abstract: An actuating magnet is disclosed comprising an actuating means (2) for exerting a tensile or pressure force on a target element that is to be moved, switched, or latched or unlatched, and comprising a latching means for latching the actuating means (2) in a desired position, the latching means having a locking magnet (11) for locking and unlocking the actuating means (2).

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Abstract: An apparatus, according to various aspects of the present invention, that couples a provided security device to a provided portal cover and communicating between a first side and a second side of the portal cover. The security device includes a first magnet and a second magnet. The apparatus includes a second device, a first metal fastener, and a second metal fastener. The first metal fastener has a first end portion and a second end portion. The second metal fastener has a third end portion and a fourth end portion. The first end portion and the third end portion are positioned on a first side of the cover. The second end portion and the fourth end portion are positioned on a second side of the cover. The first magnet and the second magnet magnetically and electrically couple to the first end portion and the third end portion respectively thereby coupling the security device to the cover. The second device electrically couples to the second end portion and the fourth end portion.

Abstract: There is provided a magnetic field generator 10 which is capable of varying an orientation of a magnetic field at a target position P easily in all directions. The magnetic field generator 10 includes a pair of magnetic field generating units 16a, 16b which are disposed coaxially so that their respective first main surfaces 28a, 28b oppose in parallel to each other, with a gap G in between. The magnetic field generating units 16a, 16b are rotated by rotation drive units 20a, 20b respectively in Arrow A directions. By rotating each of the magnetic field generating units 16a, 16b in the same one direction of the Arrow A directions by the same angle, the orientation of the magnetic field at the target position P is varied on an X-Z plane.

Abstract: An electromagnetic actuator with flux feedback control includes two poles located on opposite sides of a soft-magnetic target. A bias flux is introduced that flows into both poles. Magnetic circuitry may be designed so that the total bias flux is independent or substantially independent of a position of the target with respect to the poles or the control flux. The electromagnetic actuator also includes flux sensors introduced into each gap between the poles and the target. The electromagnetic actuator further includes an actuator control circuit to command the current in the control coil to bring a difference between the readings of the two flux sensors to a targeted level. In some aspects, the force exerted on the actuator target in this arrangement may be proportional to the command signal regardless of the position of the actuator target, MMF drop in the soft-magnetic parts of the magnetic circuit, or the frequency.

Abstract: A tactile wave generating apparatus for generating amplified low frequency waves for transmission as tactile waves into a structure or a person's body. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.

Abstract: A magnetic device includes: a magnetoresistive effect element having a magnetization fixed layer, a magnetization free layer, and a nonmagnetic layer sandwiched between the magnetization fixed layer and the magnetization free layer; an input terminal for feeding an AC signal to the magnetoresistive effect element in its stacking direction; and an output terminal for extracting an output voltage from the magnetoresistive effect element, wherein the nomagnetic layer includes an insulating layer portion comprising an insulating material, and a current-constricting layer portion comprising a conductive material which passes through the insulating layer portion in its film thickness direction.

Abstract: An electromagnetic engine comprises an electromagnet having opposing magnetic poles at ends thereof. A non-magnetic rigid support is mounted for oscillatory stroke movement relative to the electromagnet. A crankshaft is coupled to the support; a sensor is coupled to the crankshaft and outputs a crankshaft position signal. First and second permanent magnets are affixed to the support on either side of the electromagnet and are oriented so as to present the same magnetic pole to each respective end of the electromagnet. The permanent magnets are spaced from one another by a distance approximately equal to the distance between the first and second ends of the electromagnet plus the stroke movement of the support. A timing circuit is operative to switch the electromagnet between first and second energized states in response to the crankshaft position signal. Also disclosed is an electromagnetic engine in which a piston moves along guide rails.

Abstract: The invention relates to a magnet assembly for a magnet valve. The assembly has an inner pole and an outer pole as well as a coil. The coil is arranged between the inner pole and the outer pole and the coil wound directly onto the inner pole. According to the invention, the magnet assembly is used for actuating a closing element in a magnet valve.

Abstract: The invention is an apparatus comprising a magnet adapted to create a diamagnetic force field at all points in space at which a magnetic field-field gradient product of the magnet has a value greater than or equal to a threshold value. At or above the threshold value, the diamagnetic force field induces a diamagnetic body force within a biological specimen supported within a bioreactor chamber that is disposed within the diamagnetic force field. The apparatus may alter the magnitude of the induced diamagnetic body force and may alter the direction of the induced diamagnetic body with respect to a spatial coordinate system or with respect to the direction of a secondary body force acting upon or within the biological specimen, thereby altering the vector sum of the induced diamagnetic body force and the secondary body force acting on the biological specimen.

Abstract: A haptic feedback system includes movable and static portions coupled by one or more magnetic fields that serve to retard movement of the movable portion with respect to the static portion so as to provide haptic feedback when the movable portion is moved relative to the static portion. A magnet associated with one of the movable and static portions reacts with structure associated with the other of the movable and static portions so as to provide haptic feedback when the movable portion is moved with respect to the static portion.

Abstract: A three-dimensional-information detecting system includes a switching portion that sequentially selects sensor coils of a three-dimensional-information detecting device. Electromagnetic coupling is used to perform signal transmission and reception between the sensor coils and input coils in input elements of a three-dimensional-information inputting device which are mutually perpendicularly provided. A signal received by a selected sensor coil is detected by a detecting portion. From the detected signal, three-dimensional information, such as the position and attitude of the three-dimensional-information inputting device, is calculated by a control unit.

Abstract: An electric supply circuit is provided for a switch actuating device containing an actuator, an electromagnetic drive for displacing the actuator from a first switching position to a second switching position, and a mechanical return device for returning the actuator from the second switching position to the first switching position. A magnetic fixing unit is provided for fixing the actuator in the second switching position and an electromagnetic releasing device is provided for releasing the fixation. The electric supply device contains a first capacitor electrically connectable to the electromagnetic drive and used for supplying electric power thereto and a second capacitor that is electrically connectable to the releasing device and supplies electric power thereto for releasing the fixation. An electric switchable connection is provided between the first and second capacitors.

Abstract: A tactile wave generating apparatus and method to generate amplified low frequency waves which are then transmitted as tactile waves into a structure and/or to a persons anatomy. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.

Abstract: An actuator for moving a load has a frame forming a race between two surfaces thereof, at least two elements joined together by at least one flexible member, the elements and the at least one flexible member being disposed between the two surfaces of the frame that forms a race, one of the elements further joined to the load by a portion of the at least one flexible member, wherein when an element comes into contact with a surface of the frame it will stick thereto absent a repelling force, and moving means disposed to selectively attract or repel a corresponding element towards or away from one or the other of the two surfaces of the frame that forms the race. The actuator effects movement of the load in a direction towards or away from the elements, by changing a position of at least one of the elements on a surface of the frame that forms the race.

Abstract: A method for controlling a magnetic structure including the steps of determining a flux associated with the magnetic structure and generating a control signal based, at least in part, upon the determined flux.

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: Demagnetizing magnetic media for recording data in a data storage device includes placing the magnetic media in a magnetic field at a first strength, and gradually reducing the magnetic field to a second strength to essentially eliminate net magnetization in the magnetic media.

Abstract: A deflection yoke mounted on a rear portion of a cathode ray tube (CRT) to deflect an electron beam emitted from an electron gun of the CRT includes a coil separator mounted on the CRT, a horizontal deflection coil mounted on an inside of the coil separator, having a first section generating a horizontal deflection magnetic field deflecting the electron in a horizontal direction and having a first radius, having a second section generating a magnetic field to weaken the horizontal deflection magnetic field and having a second radius different from the first radius, a vertical deflection coil mounted on an outside of the coil separator and generating a vertical deflection magnetic field deflecting the electron beam in a vertical direction, and a ferrite core covering a portion of the vertical deflection coil to strengthen the horizontal deflection magnetic field and the vertical deflection magnetic field.

Abstract: An apparatus for operating a reciprocating arm vehicular safety device with a magnetized element for preventing inadvertent deployment of the reciprocating arm. The apparatus has a magnetized element on the arm and an electromagnet on a vehicle bumper, the magnetized element and electromagnet disposed so as to engage the arm in a retracted position. When the reciprocating arm is moved to an extended position, current is passed through the electromagnet to repel the magnetized element, thereby allowing the arm to move to the extended position by a motor.

Abstract: In a color cathode ray tube, by optimizing an outer radios of curvature, an inner radius of curvature on a corner portion, a thickness of a long side, a thickness of a short side, a thickness of the corner portion, the total length of the panel, the total length of the funnel body and the total length of a yoke portion of the funnel determining a section shape of the yoke portion of the funnel, a stress concentrated on the yoke portion can be lowered. In addition, according to the increase of an inner radius of curvature of the corner portion of the yoke portion, a crash phenomenon of an electron beam is decreased, and an impact resistance and productivity improvement in fabrication process can be secured by lowering a high stress occurrence on the funnel in vacuum.

Abstract: A method for positioning permanent magnetic blocks includes providing a plurality of magnetized blocks, positioning the magnetized blocks on a yoke in a row by applying a mechanical force at a first end of the row with a first clamping member and at a second end of the row with a second clamping member, and repositioning the blocks by reducing the mechanical force at the first end by moving the first clamping member away from the first end, and moving the second clamping member toward the second end.

Abstract: Disclosed is a deflection yoke which is so configured that a coil separator and horizontal deflection coils have angular cross sectional shapes and a ferrite core and vertical deflection coils have circular cross sectional shapes to improve deflection sensitivity thereby reducing power consumption.

Abstract: An embolic material comprising a polymerizable hydrophobic suspension of coated magnetically responsive particles (e.g. magnetite Fe3O4) suspended in a solvent monomer, a bulking agent, a radiopaque monomer, and an accelerant, and an initiator. The coated magnetically responsive particles preferably have a diameter of between about 20 and about 40 nm, and a magnetically responsive core with a diameter of between about 2 and about 20 nm.

Abstract: A projection type cathode ray tube device includes a panel, a neck, a funnel connecting the panel to one end of the neck, and a stem closing the other end of the neck. An electron gun is housed in the neck for projecting an electron beam toward a phosphor screen on the panel. The neck includes a small-diameter neck portion disposed on its funnel side, a large-diameter neck portion disposed on its stem side, and a neck junction region connecting the small-diameter neck portion and the large-diameter neck portion. A deflection yoke is disposed in a vicinity of a transition region between the funnel and the small-diameter neck portion. A convergence yoke for generating a beam-convergence magnetic field is disposed to extend from the large-diameter neck portion and surround at least a portion of the neck junction region.

Abstract: A plasma impulse device/method has been developed to provide impulses that can be used for thrust. A field device produces electric and magnetic fields, which E×B drifts a charged portion in the ambient environment, resulting in thrust of the field device.

Abstract: A stimulating coil for use in apparatus for the magnetic stimulation of neuro-muscular tissue. having a ferromagnetic back disposed adjacent one broad side of the coil. the material of the ferromagnetic back exhibiting high permeability and high resistivity.

Abstract: A device is provided for the treatment of water so as to reduce or remove micro-organisms therein as well as possible other causes of skin diseases or waterborne diseases in human beings and animals. The device comprises at least one permanent magnet provided with an axially extending opening, said magnet subjecting passing water to a magnetic field and being made of a magnet material presenting an energy product of more than approximately 20 and preferably more than approximately 40 kJ/m3 and a coercive force of preferably more than approximately 200 kA/m at 25° C., the north pole of said magnet being positioned at one axial end face and the south pole at the opposite axial end face, and where the water is passed through the axially extending opening in the magnet. Moreover, a method of treating the water is provided, whereby the water is allowed to pass said device immediately before or adjacent a tapping point.

Abstract: A depression in the windings of a horizontal coil at a predetermined location in a deflection yoke of a cathode ray tube corrects for multiple types of mis-convergence. In particular, the depression in the windings is disposed in a “neck” portion of the deflection yoke, which incorporates a horizontal deflection coil disposed on a saddle type mold die. A deflection yoke for deflecting electron beams of a color CRT includes a horizontal deflection coil disposed on a saddle type mold die that has a funnel section and a neck section connected along a horizontal axis parallel to the centerline of the deflection yoke. A portion of the neck section of the deflection yoke includes an offset relative to the profile (relative to the horizontal axis) of the windings of the horizontal coil that creates a depressed area in the windings of the horizontal deflection coil.

Abstract: The present invention relates to a deflection unit for mounting on an in-line type cathode ray tube comprising a coil body including grooves for receiving wound coil wires, the grooves extending substantially in a straight line. The groove extension of at least one groove is changed at at least one location such that the coil wires received in the groove become curved in the area of the changed groove extension. In a preferred embodiment the grooves are separated from each other by groove walls which in the area of the changed groove extension comprise a thickening and optionally a bulge. The coil wires wound onto the coil body form the horizontal coil or the vertical coil. The arrangement serves the selective fine adjustment of the deflection fields for eliminating convergence, coma and/or geometry errors.

Abstract: A vortex magnetic regenerating device uses magnetic fields focused by a magnetic keeper upon a user to assist in regeneration of a living being. A layered construction of a magnetic keeper, magnetic strips, a board surface all covered by a covering creates the magnetic vortex generating device which may be flipped one side of the other to expose the user to either positive or negative magnetic fields.

Abstract: To realize an energy-efficient color cathode-ray tube, deflection power requirement is reduced for a deflection yoke that includes one or more bend-up-less saddle type coils in at least one of a horizontal deflection coil and a vertical deflection coil, without changing a basic setting. To do so, a protruding part is provided which protrudes towards an electron gun at an electron gun-side bend part of a horizontal deflection coil of a bend-up-less saddle shape. Each side of the protruding part, in a direction perpendicular to the tube axis, is located at a point so that a vertical line drawn from the point to a tube axis forms an angle &agr; of 10° to 50° inclusive with a vertical plane.

Abstract: The present invention refers to a deflection unit for mounting on a color cathode ray tube, an associated tube and a corresponding display apparatus. The deflection unit comprises a pair of coils for vertical deflection and a pair of coils for horizontal deflection. At least one of the pair of coils is subdivided into at least two parts, of which one part is intended for the correction of convergence errors and the other part for the correction of geometry errors. The respective corrections can be carried out independently of the respectively other correction. According to a preferred embodiment the parts are spatially separated and mechanically independent, with the part intended for geometry error correction being positioned closer to the screen of the picture tube. Preferred is the use of an in-line type arrangement of the saddle-saddle or saddle-toroidal type.

Abstract: An adjustable field magnet assembly comprising at least two magnets rotatably mounted so that the rotation of at least one of the at least two rotatably mounted magnets changes the magnetic field projected by magnet assembly. The magnet is particularly useful in providing a magnet field of variable direction for use in magnetically navigating medical objects in the body by rotating the magnets comprising the assembly and/or rotating the entire assembly.

Abstract: A sputtering apparatus for depositing a thin film (66) of magnetic material on a substrate (26) is modified to include a plate-shaped electromagnet (34, 44, or 70) for orienting magnetic domains within the film (66). The electromagnet (34, 44, or 70) has conductive windings (38; 46, 48, and 50; or 72) that are arranged for producing a magnetic field (42 or 52) within a plane (60) corresponding to a surface of the substrate (26). Field strength vectors (68) vary in absolute magnitude between points located along a first axis (62), but have substantially uniform components of magnitude at the same points measured in a common direction along the first axis (62).

Abstract: A vacuum sputtering apparatus (1) is described in which a target (7) having a target face (8) is mounted in a vacuum chamber (2) opposite a substrate (15). A magnetic pole plate (16) having a non-magnetic carrier plate (17) attached thereto is mounted behind the target (7) on a shaft (28) and can be rotated by means of a motor (29) about an axis substantially orthogonal to the target face (8). Carrier plate (17) has an array of holes (19) each of which can receive a corresponding first bar magnet (20, 21). There are fewer magnets (20, 21) than there are holes (19) and the magnets (20, 21) are removable from their holes (19). Carrier plate (17) also has a circumferential line of holes (22), in each of which may be mounted a corresponding second bar magnet (23). By varying the number and positions of the bar magnets (20, 21, 23) in the holes (19, 22) a variety of different high density plasma zone shapes (24; 25, 26; 27; 28) can be produced upon the target face (8).

Abstract: An electromagnet assembly magnetically orients a thin magnetic film deposited onto a surface of a substrate. The magnetic orientation can take place in a low-pressure processing environment such as during the deposition of the thin magnetic film or during a subsequent operation such as annealing. The electromagnet assembly includes a plate-shaped core located adjacent to the substrate and two or more electromagnetic coils that are wrapped in different directions around the core. Electrical currents conveyed through the electromagnetic coils are controlled for orienting a substantially uniaxial magnetic field throughout a range of angular positions in a plane of the substrate surface.

Abstract: An electromagnet assembly magnetically orients a thin magnetic film deposited onto a surface of a substrate. The magnetic orientation can take place in a low-pressure processing environment such as during the deposition of the thin magnetic film or during a subsequent operation such as annealing. The electromagnet assembly includes a plate-shaped core located adjacent to the substrate and two or more electromagnetic coils that are wrapped in different directions around the core. Electrical currents conveyed through the electromagnetic coils are controlled for orienting a substantially uniaxial magnetic field throughout a range of angular positions in a plane of the substrate surface.