Abstract: The winding support comprises a first cylindrical portion (1) which comprises a winding space for a coil winding which is situated between a first wire fastener unit (7) and a wire guide (5), and a second portion (3) which is situated in the prolongation thereof and which is shaped as a semi-cylinder with a flat supporting face (17) for mounting an electronic component (23) which comprises contact pads (25, 27). The component (23) is mounted in a recess (19) at the area of the lacking cylinder half, which recess is axially bounded by the wire guide (5) on the one side and by a second wire fastener unit (21) on the other side. Lead-out wires (31, 41) of the coil winding are guided by way of the wire guide (5), across the contact pads (25, 27) to the second wire fastener unit (21) whereto they are fastened. Subsequently, soldered or welded joints (43, 45) are formed between the lead-out wires (31, 41) and the contact pads (25, 27) by way of a thermal treatment.

Abstract: A transformer assembly having a mounting plate of electrically conductive material An electrically conductive core of a transformer has an end mounted on the plate and electrically connected to the plate. A fastener on the plate engages an opening in a junction box. The plate provides an electrical connection between the core and the junction box to ground the transformer to the junction box. The transformer has a coil on the core, the coil having wires adapted to be connected to the terminal wires in the box. The plate and the fastener support the plate and transformer on the junction box.

Abstract: A low loss composite spider arrangement for use in inductive electrical epment and an air core reactor incorporating the same in which a non-conductive or a conductive material having very low relative permeability and relatively high resistivity is used to fulfill the mechanical and structural requirements of the spider, and a relatively small amount of electrical conducting material, bonded to and preferably electrically isolated therefrom, is used to fulfill the electrical requirements of the spider.

Abstract: The winding support comprises a first cylindrical portion (1) which comprises a winding space for a coil winding which is situated between a first wire fastening units (7) and a wire guide (5), and a second portion (3) which is situated in the prolongation thereof and which is shaped as a semi-cylinder with a flat supporting face (17) for mounting an electronic component (23) which comprises contact pads (25, 27). The component (23) is mounted in a recess (19) at the area of the lacking cylinder half, which recess is axially bounded by the wire guide (5) on the one side and by a second wire fastening units (21) on the other side. Lead-out wires (31, 41) of the coil winding are guided, by way of the wire guide (5), across the contact pads (25, 27) to the second wire fastening units (21) whereto they are fastened. Subsequently, soldered or welded joints (43, 45) are formed between the lead-out wires (31, 41) and the contact pads (25, 27) by way of a thermal treatment.

Abstract: An electromagnetic apparatus such as a transformer or a single winding inductor is provided with a cooling arrangement. The apparatus has a magnetic core and a coil winding disposed about and carried by a leg of the core. The magnetic core has legs connected to the leg that carries the coil winding and these legs have flat surfaces that directly contact a flat surface of a metallic heat sink to thereby provide a direct heat conductive path from the legs to the heat sink. Heat generated in the coil winding is transferred to the heat sink via the leg that carries the coil winding and then to the heat sink via the legs that directly engage the heat sink. Heat generated in the magnetic core due to hysteresis or eddy current loss is also transferred to the heat sink.

Abstract: A miniaturized or chip-type HF magnetic-coil arrangement, e.g. a toroidal core transformer, comprising a basic body (1) of plastic material, which is provided with openings for magnetic cores (2), the upper side (10) and the lower side (11) of said basic body (1) including electric conductors (5) and the interior thereof being provided with plated-through holes in openings (16) to which the conductors (5) are connected in such a way that individual turns around the magnetic core are formed, said turns defining windings of coils (6, 7). Moreover, methods are provided, which permit a production of these arrangements in large numbers of pieces.

Abstract: A miniature current transformer is equipped with a primary winding insert formed as a stamped metal piece with elongate legs and a flange portion disposed at 90 degrees to the legs. The top of the flange is unobstructed by other structural details, and is wide enough to be gripped by vacuum pick-and-place equipment. At the same time the insert is electrically functional as the transformer's primary winding. The flange rests on surfaces formed in the transformer bobbin. The insert legs are mounted through passages n the bobbin leading out to the bobbin's bottom side. The legs are formed into gull-wing ends that have a dual role as lock tabs to secure the insert on the bobbin, and as the primary leads.

Abstract: A magnetic component (i.e. inductor or transformer) utilizes sheet winding patterns designed to enhance component assembly and maximize utilization of the core window areas. The windings are obtained from a copper sheet from which sheet winding patterns are obtained by etching, stamping or cutting the copper sheet. These winding patterns are contoured to fit precisely into the window area of the core of the magnetic component so that the window area is fully utilized. Basic symmetrical copper sheet patterns are used and these are sequentially stacked and combined to achieve multiple turn windings. These assembled winding components are connected to a bobbin which includes pins at its periphery to interconnect the copper sheet winding patterns to obtain the desired number of turns of the windings.

Abstract: A transformer winding form includes an insertion-type leader frame which is attached to the transformer winding form during the process of molding the winding form. The leader frame can be produced in a T-shaped or L-shaped configuration for attachment at the proper position on the transformer winding form. Due to a the lower curved section in the T-shaped leader frame, the thus equipped transformer winding form can be soldered firmly to a PC board, while also having horizontal side terminals which facilitates other connections to the transformer winding form. The horizontal side terminals of the T-shaped configuration also conform to the special layout holes of a PC board, as a result of which the overall height of the transformer winding form is also decreased. In the L-shaped leader frame, the lower vertical terminals underneath can also be inserted into the holes of a PC board and thereby comply with the requirements of large-volume output automatic soldering machines.

Abstract: A welding transformer for use in a resistance welding machine has primary and secondary coils. The primary coil includes a plurality of spaced juxtaposed coil units mounted on a base board. Each of the coil units includes a plurality of juxtaposed coil unit elements with insulating members interposed therebetween. Each of the coil unit elements includes a plurality of turns of a conductive member, and a plurality of conductors mounted on the base board and electrically interconnecting the coil unit elements. A pair of cores is combined with the coil units.

Abstract: The swing-type actuator includes (a) a housing comprising a pair of yokes opposing each other and a permanent magnet attached to at least one of the yokes for defining a magnetic gap therebetween, (b) a swingable arm having one end to which a hold member encompassing a periphery of a movable coil is fixed, and the other end to which a function member is fixed, such that the movable coil is swingable in the magnetic gap, and (c) a thin non-magnetic plate adhered to at least part of a surface of the movable coil facing the permanent magnet. The hold member is made of a thermoplastic resin and molded integrally with the movable coil and the arm, and the hold member has substantially the same thickness as that of the movable coil.

Abstract: A magnetic detection apparatus (magnetic locator) comprises a housing constituted by a first integral molded plastic unit and a second integral molded plastic unit that are joined. The first unit has a tube with a plate at one end thereof transverse to the length of the tube, the plate having an opening through which a magnetic sensor assembly is inserted into the tube. The second unit has a cover open at one end and having a tubular handle at the opposite end, by which the user may grasp the apparatus. Attachment of the cover to the plate closes the open end of the cover to provide a casing. Magnetic sensors are mounted on a channel or angle structural member that is rigidly attached to the chassis of an electrical unit mounted in the casing. Sound from a loudspeaker mounted on the chassis is transmitted through the handle to the exterior of the apparatus. The chassis also supports a meter that is visible through an opening in an end wall of the cover adjacent to the handle.

Abstract: There is disclosed a current limiting electrical reactor that efficiently uses space. The reactor includes a supporting core with a circular periphery where the conductor is wound about the periphery of the coil in a convoluted spiral that spirals laterally out from the periphery of the core over itself, and lies in a radial plane passing through the core. A first terminal, adapted for electrical connection, is positioned at the beginning of the innermost turn of the conductor. A second terminal, also adapted for electrical connection, is positioned at the end of the outermost turn of the electrical conductor. Insulation is provided between adjacent turns of the conductor. This reactor configuration provides an electrical path along the conductor between the first and second terminals having a current limiting reactance.

Abstract: A supply circuit for supplying electronic devices with current or voltage and mountable as a module has input and output connections, a rectifier cirucit, a transformer having a primary winding coupled with the inputs of the supply circuit and a secondary winding coupled with the rectifier circuit and at least one high-capacity capacitor. The capacitor is coupled with an output of the rectifier circuit for smoothing generated direct current or direct voltage. The capacitor has a housing which housesd the capacitor, the rectifier circuit and the transformer in or on the housing. The input and output connections are arranged on the housing so as to be accessible from outside of the housing. At least a parat of the housing consists of a magnetizable material and carries the primary and secondary windings in the manner of a winding body.

Abstract: Current transformer mounting mechanism which mounts a current transformer having a core on a circuit breaker to diminish impact caused by switching operation comprising: at least one substantially U-shaped fitting board having curved portions at both ends thereof; at least one setscrew for mounting said fitting board to the core of the current transformer; and a current transformer mounting portion having opposing walls, each wall being provided with a shoulder where the fitting board being fixed; the current transformer being mounted to the current transformer mounting portion by inserting the fitting board to the current transformer mounting portion. The fitting board is preferably provided with embossed tabs at curved portions thereof.

Abstract: An electronic register in an electric energy meter includes a power supply transformer mounted on and through the register circuit board which is positioned between the base of the meter and the register indicator. Shrouds isolate and insulate the connections within the shrouds to the primary winding of the transformer, and positioning members are provided to secure the transformer to the circuit board while at the same time providing positioning for the secondary winding terminal pins which pass through the circuit board to enable their proper connection, such as by soldering, to the circuit board. A unitary molded bobbin provides a spool for the transformer windings and core, the positioning members, the shrouds, and securing of the secondary winding terminal pins.

Abstract: A brushless generator in accordance with the present invention includes a main generator having a stator (12) on which is wound at least one phase winding (52-56), each phase winding producing a phase output (.PHI.A-.PHI.C); a number of current transformers (20-24) equal in number to a number of phases present in the main generator, each current transformer being magnetically coupled to a conductor (48) of a different phase winding; and a plurality of annular disks (40), equal in number of the number of phases, each annular disk having an annulus (46) containing the conductor of the phase winding of a different phase, slot (42) extending from an inner radius (44) defining the annulus to an outer radius (50) defining an outer cirucmference of the disk, each annular disk being held by a support (10) for the current transformer, having a permeability greater than 1020-type steel and attenuating harmonics of a fundamental frequency of AC produced by the main generator.

Abstract: A frame (10) for holding an electrical component (34) that is to be mounted on a printed circuit board is provided. A board (12) is folded to form a pocket (20) having sidewalls (22 and 24) and a floor (26). The board is further folded to form flaps (28 and 30) connected to the sidewalls and lying adjacent the sidewalls outside the pocket. A plurality of terminal wires (14.sub.1 -14.sub.n and 15.sub.1 -15.sub.n) are inserted into a plurality of spaced apart hole pairs (16.sub.1 -16.sub.n and 17.sub.1 -17.sub.n) located in the flaps. Ends (40.sub.1 -40.sub.n and 44.sub.1 -44.sub.n) of the terminal wires are connected to lead wires (36.sub.1 -36.sub.n and 37.sub.1 -37.sub.n) of the electrical component contained in the pocket. Other ends (42.sub.1 -42.sub.n) of the terminal wires may be connected to a printed circuit board. The other ends (42.sub.1 -42.sub.n and 46.sub.1 -46.sub.n) are spaced apart a predetermined distance.

Abstract: A core securing clip to hold the two core members of the core of a surface mount magnetic component together is designed with a large planar surface to provide a suitable surface to facilitate the use of pick and place apparatus in mounting the magnetic component on a printed circuit board. The subject clip is fastened over the top of the magnetic component and has spring loaded members that apply forces to opposing sides of the two core members joined together in order to join them together as a single core.

Abstract: A multiple ignition coil, in particular for an internal combustion engine for an automotive vehicle, has a casing in which are integrated at least two magnetic assemblies, at least two magnetic flux return circuits constituting a metallic armature of the casing, and mounting assembly for anchoring the coil to the vehicle, these mounting assembly comprising metallic cores which are entirely separate from the metallic armature and which are retained by moulding within projecting bosses of the casing.

Abstract: An air core reactor of the type having a plurality of coaxial coil windings connected electrically in parallel by structurally rigid spiders at opposite ends of the reactor. There are two electrically conductive spiders at least one end of the reactor. Selected ones of the coil windings are connected to one of the two spiders and further selected ones of the coil windings are connected to the other of the spiders at the one end. In the preferred form the windings connecterd offset from one another around the coaxially disposed coils. In a further preferred embodiment, there are two electrically conductive spiders at each of opposite ends of the coaxial coils. In a still further preferred form, at least some of the coil windings are wound at least two conductors high with the same number of turns and wherein the ends of said two conductors are circumferentially offset from one another by preferably 180.degree..

Abstract: Disclosed is a component carrier adapted for mounting components on curved surfaces. The carrier comprises a rigid base member having a top surface adapted for supporting a component and a bottom surface curved to mount flush to a complementary curved support surface.

Abstract: An electronic device having a plurality of leads comprises a three dimensional electronic element holder of a non-conducting material having at least one cavity therein and a plurality of lead slots extending from the cavity to a base of the holder, an electronic element mounted in the cavity and having a plurality of leads extending therefrom, a plurality of the leads extending within the slots from the element to the base, and a plurality of lead terminals mounted on the holder and each having one end extending into one of the slots into conducting engagement with a lead and a free end extending outward therefrom.

Abstract: A new physical construction for attaching a phosphor bronze terminal to a plastic bobbin assembly permits a lower component height and a reduced footprint size as well as providing improved positive mechanical locking of the bobbin pinouts to the bobbin. This mechanical locking is provided by bending the attached end of the phosphor bronze terminal by 90 degrees and inserting the terminal into the bobbin so that the inserted part of the terminal is inserted horizontally into the support member of the bobbin. In this new configuration the bent end embedded in the bobbin is parallel to the printed circuit board surface on which the bobbin is mounted preventing the phosphor bronze terminal from working loose due to vibration and motion in the vertical axis direction.

Abstract: A fluorescent lamp ballast includes a generally flat base upon which a core and coil subassembly is mounted and covered by a ballast case. A connector bar is mounted in the forward end of the ballast case and includes a plurality of sockets having terminal pins mounted therein for selectively receiving a wiring harness. The opposing ends of the terminal pins are electrically connected to a terminal strip which is mounted to the core and coil subassembly. The terminal strips have conductors electrically connected thereto which extend to termination points on the core and coil subassembly. A second series of terminal strips is mounted to the opposite end of the core and coil subassembly, and is electrically connected to a resistor and capacitor combination. A second embodiment of the ballast augments the first embodiment with an end connector bar mounted in the rearward end of the ballast case.

Abstract: A current sensing device is disclosed for measuring a current flowing in a primary conductor. The primary conductor is coupled with a magnetic circuit, and a device for measuring the magnetic flux in that circuit is provided. The primary conductor comprises U-shaped portions arranged over the magnetic circuit in the manner of a rider and connected by their ends, in the form of pins, to a printed circuit. The printed circuit includes conductor elements, arranged so as to connect certain of said pins together and form together with the U-shaped portions a primary winding of a desired number of turns.

Abstract: A mounting device for mechanically retaining separable transfomer core portions together and attaching the transformer assembly to a printed circuit board utilizing a flat clip body and a vertically aligned spring unit to minimize the transformer assembly height and four mounting legs to allow easy installation and removal.

Abstract: A bushing cap is provided for mounting to a transformer bushing or to a lightening arrestor. The bushing cap when mounted to the bushing acts as an umbrella for the bushing to protect the same from airborne contaminates such as salt spray which can form a conductive surface on the bushing, while providing adequate bottom and side clearance from the bushing to ensure that a conductive surface between the cap and the bushing is avoided.

Abstract: A multi-component transformer to be used in conjunction with surface mounting technology. Transformer windings are provided by a plurality of conductors arranged in parallel and disposed around a ferrite core. A portion of the winding is disposed in a spacer member or alternatively is formed from tracings of a circuit board. A portion of a ferrite core is disposed above the conductors. Then a bridge member, which is U-shaped and has a plurality of conductors disposed in a dielectric body, is disposed to overlie a portion of the magnetic core overlying the first tracings. The conductors of the bridge member are coupled to the underlying tracings such that the tracings form a continuous loop around a portion of the magnetic core to function as a winding of a transformer. Alternative embodiments are disclosed in which variations of the multi-component provides variations in the design.

Abstract: An inductor and carrier suitable for mounting on a mounting substrate includes an etched sheet of a bonded copper layer and polyimide film to form a film carrier. The periphery of the film carrier is patterned with a plurality of windows and a plurality of conductors, each conductor having a bent-up tab and and end portion terminating at the periphery within the respective window. A microminiature inductor core having a plurality of insulated windings is soldered to the respective bent-up tab of each conductor and the end portion of each conductor is then welded to bonding pads on the mounting substrate.

Abstract: A high-frequency transformer is proposed in which at least one elastic carrier (18, 20) is constructed with openings (22 to 29, 52, 69, 73, 74) and also with cutouts (30 to 33, 53, 70, 71, 75, 76, 77) in such a way that the regions on the carrier (18, 20) delimited by the cutouts form a tongue (72, 78), which may be lifted to insert a magnetic core (13 to 16). Around the cores (13 to 16) in the openings (22 to 29, 52, 69, 73, 74) conductor tracks (51, 57, 58, 80, 81, 92) are mounted on one or both sides of the carrier (18, 20), and are completed as a turn or as a continuous winding by conductor track parts (64, 66, 67) mounted on bridges (17, 19, 21). At definite locations, the conductor tracks (51, 57, 58, 80, 81) have bonding pads (85, 89, 91) for surface mounted devices (38 to 41, 86, 87). In common with the insulation spacings between the conductor tracks, the conductor track widths are adjusted to the dimensions of the surface mounted devices (86, 87).

Abstract: The present invention relates to a transformer secondary buss adapter having a rigid member constructed of an electrically conducted material wherein the top end of the member is substantially flat on two sides and has a hole therethrough. A threaded stud is attached to the other end thereof and has a threaded nut thereon for connecting a buss bar thereto. The transformer secondary buss adapter is used to obviate the need for splicing when an old style shorter transformer is replaced by a taller, newer model.

Abstract: A multipurpose combination barrier and auxiliary current transformer board is provided for a circuit breaker. The board is located at the rear of the circuit breaker housing to close an open portion of the housing and act as a barrier to prevent contact with internal circuit breaker components. Vent holes, provided in the bottom portion of the board, allow heat generated within the circuit breaker to be exhausted to the atmosphere. The top portion of the board serves as a mounting plate for the auxiliary current transformers. The top portion of the board is formed from a printed circuit board having an electric circuit disposed thereon for the connections between the main current transformers, auxiliary transformers and the electronic trip unit. Connectors are provided on the printed circuit board adjacent each auxiliary current transformer to connect the main current transformers to the printed circuit.

Abstract: An improved transformer assembly includes a core windings about the core, and a mechanism attached to opposing ends of the core for slideably mounting the assembly to interior edges of a printed circuit board (pcb) which define a recess in the pcb. A further mechanism permits making direct electrical connection between conductors on the printed circuit board and the transformer windings. No additional fasteners or additional soldering is required. This transformer assembly is especially suited for utilization in a modem in order to reduce the thickness of its housing.

Abstract: This invention discloses an improved ring-core transformer which includes a ring core, a pair of coil former, a frame body, a pair of protrusions, at least one row of pin bases, a plurality of connecting pins and coils, wherein the coils are respectively wound on the pair of coil former. Each coil has a plurality of output terminals leading therefrom and is connected to the pins by being passed through the gaps between the pin bases and fixed in the slots formed on the pin bases. Therefore, the ring core transformer of this invention can offer excellent insulation by the isolation of the terminals also provide a wide range of output voltage.

Abstract: In a split bobbin designed to be rotatably mountable on a core and attached to a bobbin holding base after specific winding of coils, the split bobbin has collars at least at its both ends and cutout sections at least at two places in the outer periphery of these collars. In these cutout sections are provided lead terminal holding holes of specific depth in which rod-like lead terminals can be inserted.

Abstract: A print wire driving device for a wire dot printer includes a plate like member having slots therein. The slots are arranged opposite the cores of a magnetic core block. The cores are arranged in a circle and project from the core block. The slots extend radially from the center of the plate like member. A magnetic driving member is received in each slot so that it pivots therein when acted upon by the magnetic field of a respective magnetic core. A print wire is coupled to each magnetic driving member. Each print wire is guided by a wire guide having a wire nose which receives at its end a wire guide member from which the ends of the print wires extend to print.

Abstract: A transformer, choke or the like includes a magnetic core assembled from two lamination packets formed of laminations layered in a given direction. The lamination packets have outer contacting surfaces defining a partition line therebetween. A weld seam transverse to the given direction fastens the contacting surfaces to one another and overlaps the partition line. A fastening element fastens the transformer, choke or the like to a floor or a wall. Upright tabs formed on the fastening element have free edges alongside the partition line being partially welded with the weld seam.

Abstract: A fluorescent ballast assembly has a primary coil wound on a primary coil bobbin and a lag coil wound on a lag coil bobbin, each coil having wire starts, taps and finishes. A strip circuit board including a plurality of pin receiving holes and a plurality of wire insertion holes corresponding to the wire starts, tabs and finishes, is attached substantially perpendicular to and in contact with the bobbins. The strip circuit board has an insulating support with conductive strips attached thereto, preferably manufactured using automated equipment. Substituting a mechanically constructed and assembled strip circuit board for a printed circuit board eliminates the need for chemical plating or etching operations, reducing costs and easing assembly.

Abstract: The invention relates to a structure for providing strain relief for electrical leads from transformers, and particularly small transformers and similar electrical devices. The structure includes a boss extending from a base member having a recess therein and a drum portion with a convex surface for extending into said recess and engaging a lead passing therebetween to hold said lead in place. The support structure, in addition to holding said drum portion, also supports the transformer thereon.

Abstract: A coil assembly having a drum core for winding a coil wire. The drum core has a drum portion and a pair of end flanges provided at the opposite ends of the drum portion. The wire is wound on the drum portion. The drum core is encircled by a cylindrical ring core. The drum core and the ring core are supported by a base plate which has a recess for receiving end portions of the drum core and the ring core for appropriately locating the drum core and the ring core during assembling. The ring core is formed with cutouts leaving projecting edges at the end adjacent to the base plate. The base plate is provided with terminals at the edge portions adjacent to the cutouts of the ring core. End portions of the coil wire are passed through the cutouts and connected with the terminals.

Abstract: A detachable safety frame is constructed from four individual members which are assembled into a rectangular frame detachably attached at each respective adjacent and adjoining end. The frame is assembled into either existing cable openings of installed transformer and mounting pad installations or may be incorporated into new installations during the installation of the transformer on the mounting pad. In the version used for new installation, the individual frame members are of such size as to extend downwardly into the hole in the ground which is dug for the cables. Each end of each member is provided with a projecting tab and slot for engagement and disengagement to assemble or disassemble the frame.

Abstract: An electric noise absorber for clamping to a cord or cable of an electronic device comprises a retaining case composed of two box-shaped case pieces. Each case contains a magnetic body having a recess at the upper part thereof for receiving the cord. It is possible to easily and securely attach and detach the electric noise absorber to the cord or cable by simply closing and opening the case pieces.

Abstract: An insulator device to be inserted between a power transformer and a conductive chassis. Insulative washers are monolithically formed with the spacer. One washer is formed for each screw holding the transformer to the chassis. Each washer has a cylindrical protrusion which fits into a hole in the spacer. The screw extends through the washer, protrusion and spacer so as to be insulated from the transformer.

Abstract: A winding for a magnetic core is preformed as a flat conducting strip disposed in a helical coil configuration of circular shape, having elongated integral tabs at selectible angles to the coil from substantially tangential to substantially radial orientation for cooperation with the magnetic core exit slots, thereby maximizing core window utilization and adapting to conventional cores. The cross sectional area of the tabs is less than the cross sectional area of helix turns thereby further eliminating interference with smaller core exit slots.

Abstract: A mounting device includes a clamp-like first end portion adapted to engage an upper portion of a ferrite core and toroidal winding combination and an elongated, linear second end portion. Disposed along the length of the second end portion of the mounting device in a spaced manner are a plurality of transverse, flexible fingers. The second end portion of the mounting device is adapted for insertion through an aperture in a printed wiring board (PWB), such that the flexible fingers are deflected upon insertion of the mounting device through the aperture and prevent the removal of the mounting device from the PWB. A double coated foam-type tape or an epoxy glue is disposed between the PWB and a lower portion of the coil/core combination as well as between the first upper end portion of the mounting device and an upper portion of the coil/core combination to protect the toroidal winding from unnecessary contact and possible damage and to maintain the mounted assembly under tension.

Abstract: A chip inductor having a pair of terminal electrodes formed on the surface of a magnetic core which holds a winding therearound. The terminal electrodes have films which are made from a nickel alloy having a relatively high resistivity and a relatively low magnetic permeability. Such nickel alloys includes, for example, nickel-chromium alloy, nickel-phosphorus alloy and nickel-copper alloy.

Abstract: A magnet assembly for use in a magnetic resonance imaging system includes an outer cylindrical casing composed of a plurality of axially separate, connectable cylinder blocks, a plurality of air core coils arrayed in each of the cylinder blocks for generating a static magnetic field, a plurality of bases supporting each of the cylinder blocks, two discs attached respectively to axially opposite ends of the outer cylindrical casing, a plurality of three-dimensional adjustment bolts mechanisms disposed in the cylinder blocks and on the discs and having bolts hend endwise against the air core coils for positionally adjusting the coils independently in three directions with respect to axes of the cylinder blocks, and a plurality of connectors interconnecting the cylinder blocks into the outer cylindrical casing.

Abstract: A square toroid transformer is assembled on a ceramic hybrid integrated circuit substrate. The primary and secondary windings of the transformer are provided on opposite arms of a square toroid ferrite core by providing first and second groups of spaced, parallel metal conductors on the surface of the ceramic substrate and adherent thereto, and an insulative layer over the first and second groups of conductors, leaving their respective end portions exposed. The square toroid ferrite core, coated with dielectric material, is attached to the insulative layer. Wire bonds in planes perpendicular to the longitudinal axes of the opposite arms each are wire bonded, respectively, to an inner end of one of the metal conductors and an outer end of an adjacent one.

Abstract: An electrical coil has a coil body with at least one end flange with wire guidance slots. Shell core halves are slipped onto the coil body and have guidance slots. A terminal carrier is provided for printed circuit boards having solder connections and onto which the coil is placed. Ends of a winding on the coil body are soldered to the solder terminals. The end flange of the coil body is fashioned as an end plate which carries solder terminals and has passages for the sidewalls and for a center bleb or projection of the one shell core half. The terminal carrier is replaced by an adapter plate that can be plugged onto the end plate. This adapter plate has solder terminals arranged in a prescribed grid dimension on its printed circuit board side, the ends of these solder terminals which face away therefrom being soldered to the solder terminals of the end plate.