Abstract: A magnet for use in medical magnetic resonance studies and having a pair of ferromagnetic pole pieces supported by a ferromagnetic yoke which establishes a flux return path. Columns of the yoke are configured to maintain the magnetic field within the columns approximately constant in every cross section of the columns and to maximize access to the magnet gap.

Abstract: The electromagnetic coupling device 1 has a one piece armature hub (8) with a central bore attached to a compressor drive shaft (3). Flanges (8b) extend tangentially from the boss (8a) of the armature hub (8). The peripheral edges of the boss (8a) and the flanges (8b) are bent in an axial direction to form a peripheral wall (8c). A portion of the peripheral wall (8c) on the ends of the flanges (8b) form the chamber walls (8d) of damper covers (8e). The chamber walls (8d) have an opening on the side of the damper chamber facing the boss (8a). Rubber dampers (10) are compressed and mounted in each damper cover (8e). Torque pins (11) are mounted in the rubber dampers (10), pass out of the damper covers (8e) and are staked to the armature (12). Projections (8i) can be formed in the flanges (8b) by a press and limit movement of the armature (12) away from the rotor (6).

Abstract: A method of controlling a motion of an armature away from an electromagnet of an electromagnetic actuator includes the following steps: passing an electric current through a solenoid of the electromagnet for holding the armature at the electromagnet against a resetting force; interrupting the current flow through the solenoid at a desired moment for releasing the armature from the electromagnet; and impressing a current pulse of reverse polarity on the solenoid after interrupting the current flow for launching the armature from the electromagnet.

Abstract: An apparatus and method for generating homogenous electromagnetic fields within a volume. The homogeneity provided may be for magnetic and/or electric fields, and for field magnitude, radial gradient, or higher order radial derivative. The invention comprises conductive pathways oriented about a desired region of homogeneity. A corresponding apparatus and method is provided for substantially canceling the electromagnetic field outside of the apparatus, comprising a second set of conductive pathways placed outside the first set.

Abstract: An electric lifting magnet includes a casing that is fabricated entirely from components such as, for example, structural steel that are welded together. In particular, the lifting magnet includes a flat top plate that is stiffened and supported by a frame that is welded to the top plate. The frame includes a plurality of stiffeners that extend from the center of the top plate to the radially outer edges of the top plate, the stiffeners being welded together at the center of the top plate. The stiffeners are shaped and arranged on the top plate so that the frame that they form can bear the entire load that the lifting magnet is designed to withstand.

Abstract: An annunciator is provided for an organ stimulating system which is implantable in the body of a patient. A tubular support member is mounted at one end on the casing for the organ stimulating system and extends to a free end and an electrically conductive coil encircles the support member. An elongated oscillating member includes a field return member of magnetically permeable material which is spaced from and generally encircles the support member. The field return member extends between an integral head member at a proximal end generally proximate the free end of the support member and a distal end generally proximate the casing. A stack member is mounted on the head member and extends away therefrom toward the casing for the organ stimulating system.

Abstract: An actuator for an optical pickup includes a first permanent magnet for supporting an objective lens. A focusing coil is wound around the circumference of the first permanent magnet for providing a driving force for vertical movement of the first permanent magnet. A plurality of tracking coils are placed at predetermined portions of the circumference of the first permanent magnet and provide a driving force for lateral movement of the first permanent magnet. A second permanent magnet is installed around the first permanent magnet and is separated from the first permanent magnet by a predetermined distance, for levitating the first permanent magnet which has the objective lens and the focusing and tracking coils disposed thereon, by interacting with the first permanent magnet.

Abstract: A demagnetizing device for a cathode ray tube having a screen portion and a funnel portion, comprising:an outer magnetic shielding member which is arranged so as to surround a funnel portion of a cathode ray tube, and which is formed of a magnetic sheet; anda demagnetizing coil which is arranged so as to encircle a screen portion of the cathode ray tube;wherein the demagnetizing coil is arranged so as to be apart from the outer magnetic shielding member by not less than 9.5 mm.

Abstract: Electromagnetic, monostable, small relay has a rocker armature arranged between a base plate and a coil, the armature being mounted with its middle segment at the end of an L-shaped yoke, and forming a working air gap with a second yoke. Contact springs are connected with the armature, which work together with fixed contacts anchored in the base. A resetting spring is connected with the armature and prestresses the armature into a rest position on the first yoke. For stabilization of the construction, and for separation between a contact chamber and a coil chamber, a base body is provided with an H-shaped cross-section, which overlaps the base plate in an interleaving manner, and which forms supports for the terminal pins of the base plate on both sides of the armature. In this way, a monostable relay is created, which can have any of conventional soldering pin terminals, SMT terminals, or press-fit terminals.

Abstract: An isolation system for isolating a first object from vibrations from a second object. Such vibrations will have three orthogonal components, one oriented along a line between the objects, and two oriented 90.degree. apart in a plane normal to that line. The system includes three superconductor/magnet stages, each stage designed to extinguish one of the orthogonal components.

Abstract: The present invention discloses a convergence yoke for improving focus characteristic. It comprises vertical correcting coils and horizontal correcting coils coils connected to a vertical deflection signal line and producing a barrel-shaped deflection field more enfeebled in magnetic shape without the change of magnetic force or equalizing a correction field without the change of magnetic force to improve focus characteristic of electron beams; and a core for making the vertical correcting coils and horizontal correcting coils produce an enfeebled barrel-shaped deflection field. Besides, this invention corrects coma aberration by compensating the barrel-shaped deflection field and the pincushion-shaped deflection field with each other to equalize the deflection fields without the change of magnetic force.

Abstract: A magnetic coupling includes a cylindrical housing, a spindle, an adjusting plate, two pairs of permanent magnet discs, two hysteresis material discs, and a screw member. The spindle is rotatably supported at its axial position by the housing. The adjusting plate is rotatably supported by the spindle to partition an interior of the housing into two sections in a direction of the spindle. The two pairs of permanent magnets are provided in the two corresponding sections to respectively oppose each other. One of each pair of permanent magnet discs is fixed in the housing and the other thereof is fixed to the adjusting plate. Each permanent magnet disc has magnetic poles with polarities that alternate in a circumferential direction. The hysteresis material discs are fixed to the spindle and arranged between the corresponding pairs of permanent magnet discs at a predetermined gap. The screw member fixes the adjusting plate to the housing.

Abstract: A horizontal coil separator has a plurality of ribs for positionally controlling turns of a magnet wire, the ribs project successively stepwise in an axial direction of a cathode-ray tube. The turns of the magnet wire are bent over at respective positions staggered in the axial direction of the cathode-ray tube, depending on the winding position of the magnet wire as determined by the ribs. The ribs have fingers disposed on distal ends thereof for positionally controlling only opposite ends of the turns of the magnet wire.

Abstract: An improved rotary actuator having a reduced height is disclosed. The actuator has a stator core having excitable poles and yokes, a rotor with a rotor magnet, a bobbin frame having a rotor container and bobbin portions with excitable coils. The rotor container has a bore for receiving the rotor and magnet openings for receiving a pair of stator magnets. Each bobbin portion has a slot for receiving the excitable pole. The yokes are placed at the both sides of the bobbin. The rotor container has magnetic pole slots extending in an axial direction of the rotary magnet, each of which is open to the bore and communicates with the associated pole receiving slot of the bobbin portion. Magnetic pole pieces are mounted in the magnetic pole slots. Each magnetic pole piece has a surface facing the rotor magnet and another surface magnetically connected to the stator core.

Abstract: A superconducting coil bas a winding wire portion which is formed by winding a superconducting wire covered with an insulating material around a winding frame composed of such a material that its modulus of longitudinal elasticity is 50 (GPa) or greater, and its thermal contraction rate between a room temperature and a temperature of 77 (K) is 0.35% or above while applying a tensile force thereto, and a bonding material impregnated between the superconducting wires and is then solidified by a heat treatment to reduce a contact surface pressure between the winding wire portion and the winding frame, preventing transition to a normal conductive state.

Abstract: A bistable switching arrangement has a magnetic system comprised of a yoke/core, an armature and at least one permanent magnet, as well as a magnetic coil. The armature is swingably held at the core by a spring and mechanically linked to a movable contact, with an air gap being formed in one switching state between the armature and a pole face of the yoke/core combination. In order to attain that only slight forces act upon the released armature, the permanent magnet is positioned in a region of the yoke to form one part of the cross sectional area, with the other part being formed by a non-magnetic member.

Abstract: The composite magnet comprises two sections, each section having a plurality of projections and apertures. The projections and apertures on a first section mate with the apertures and projections, respectively, on the second section. The first and second sections are magnetized in opposite axial directions.

Abstract: An apparatus and its mechanism, and more specifically to a reactor that comprehends in combination, one or several continuous walls made with glass and non ferrous metallic separating plates, which converge in its upper part, which are partially placed inside a box, in which interior additionally are placed a transformer, a reflecting mirror, and a fan by means of which air is forced through the walls; the invention also combines a plurality of accessories, including a long cushion, seat cushions and car seats interconnected to the reactor's body and over which any one may rest to benefit his or her cells, molecules and genes for the operation of the reactor. It also includes one or several rotating pointers, sliding transmitters and a platform with spheres, interconnected to the pyramid by means of plugs, making it possible to massage one person's skin.

Abstract: In order to make it possible to produce superconducting coils with small overall height, they are made from a plurality of coil subunits, optionally with a plurality of layers for each coil subunit, in particular in the case of the low-voltage coil of a transformer. The coil subunits contain as electrical conductor a high-temperature superconductor, around which a fibrous glass is spun and which is embedded in a glass-fiber reinforced epoxy resin or in a plastic. The coil subunits are placed around a transformer core in a cryostat.

Abstract: A device for the safe discharge of a superconducting magnet coil (4) which is located inside a cryostat (2) and superconductively short-circuited by a superconducting switch (7) providing at or in the cryostat (2) a transmitter (10) of electromagnetic energy being located at a temperature level considerably above the cryogenic temperature of the superconducting magnet coil (4), which transmitter can be switched on quickly from outside, and by arranging in the region of the superconducting switch (7) at the cryogenic temperature level of the superconducting magnet coil (4) a receiver (20) for the emitted electromagnetic energy, which transmits the received energy directly or indirectly to a heating device (15) of the superconducting switch (7) or which activates an auxiliary energy source (41) in the region of the superconducting switch (7), which on its turn effects a heating of the superconducting switch (7), so that it becomes normal-conducting and causes a discharge process of the superconducting magnet co