Class / Patent application number | Description | Number of patent applications / Date published |
335299000 | Coil structure or material | 55 |
20080224807 | Horizontal magnet arrangement with radial access - A magnet arrangement comprising a superconducting magnet coil system (M) for generating a magnetic field in the direction of a horizontal z-axis in a working volume (V) disposed along the z-axis about z= | 09-18-2008 |
20080272873 | Coil System for Contact-Free Magnetic Navigation of a Magnetic Body in a Working Chamber - A magnetic body is displaceable in a contact-free manner in a working chamber by the use of a magnetic coil system composed of fourteen individually controllable coils. Three magnetic field components and five magnetic field gradients are produced. Apart from two individual coils in the coil system, the other coils, which may be saddle-shaped coils, are arranged on lateral tubular surfaces surrounding the working chamber. | 11-06-2008 |
20090174513 | COIL FORMERS FOR MRI MAGNETS - A former for a coil of a magnet has a coil former body having an axially-extending floor, a first radially extending wall and a second radially extending wall. The walls are positioned at axial extremities of the axially extending floor. A radial dimension of the coil former body at an axial position corresponding to one wall is greater than a radial dimension of the coil former body at an axial position corresponding to the other wall. | 07-09-2009 |
20090237192 | MAGNETIC RESONANCE IMAGING SYSTEM AND APPARATUS HAVING A MULTIPLE-SECTION - Systems, methods and apparatus are provided through which in some embodiments a magnetic resonance imaging system includes at least two cryostats, each cryostat having a portion of a superconducting coil. Some embodiments provide force balancing between the sections. Some embodiments provide an ability to use more efficient superconducting coil geometry which would otherwise physically trap the gradient between the coils. Some embodiments provide an ability to install, remove or upgrade magnet without dismantling the imaging room. | 09-24-2009 |
20090295519 | METHOD TO DETERMINE THE DESIGN OF A BASIC MAGNET OF A MAGNETIC RESONANCE APPARATUS WITH AT LEAST ONE GRADIENT COIL SYSTEM - The method for determination of the design of the basic magnet of a magnetic resonance apparatus with at least one gradient coil system, the design of the basic magnet is determined by taking into consideration forces acting on the at least one gradient coil system that may lead to vibrations of the gradient coil system due to switching processes of the gradient coil system in the field of the basic magnet. | 12-03-2009 |
20090309681 | FIELD COIL ASSEMBLY OF ELECTROMAGNETIC CLUTCH - The present invention relates to a field coil assembly of an electromagnetic clutch for a compressor. A field coil assembly according to the present invention includes a field coil member | 12-17-2009 |
20090322458 | MAGNETIC COMPONENT - A magnetic component includes at least one coil and a permeable structure. The coil is formed by a radially wound wire, and the thickness of the wire is various according to the distance from a portion of the wire to the center axis of the coil. The coil is covered by the permeable structure. | 12-31-2009 |
20100033280 | Conical magnet - An electromagnet having a conical bore. The conical bore is created by wrapping a conductor around a conically-offset helix. The cross sectional area of the conductor can be varied in order to maintain a desired current carrying capacity along the helix. A single element can be used as the conductor. The conductor can also be created by stacking a series of specially-shaped plates analogous to prior art Bitter-disks. | 02-11-2010 |
20100033281 | PRECISE MULTI-POLE MAGNETIC COMPONENT - A method is provided to manufacture a precise multi-pole magnetic component for using in magnetic encoders. A special layout of the circuit pattern is designed and formed on a printed circuit board (PCB). Alternate and regular magnetic field is induced according to Ampere's law after a current flowing through the circuit on the PCB. The multi-pole magnetic component with fine magnetic pole pitch is achieved by forming the high-density circuit patterns on a substrate using the PCB technology. | 02-11-2010 |
20100045410 | PLANAR-HELICAL UNDULATOR - A planar-helical undulator for emitting 360° electrically variable photo radiation, including a first coil and a second coil disposed relative to an undulator axis, an axis of the first coil and an axis of the second coil and the undulator axis being parallel to each other, and the undulator axis forming a portion of a synchrotron beam axis. Further, each of the first and second coils includes a helical section and a planar section. The windings of each respective section are connected in series, so that the planar section generates, when energized, a first magnetic field, and so that the helical section generates, when energized, a second magnetic field. Each planar section is disposed around the corresponding helical section, and at least one of the helical section and the planar section of at least one of the coils includes variable windings changing symmetrically over a length of the respective section towards a middle of the respective section. | 02-25-2010 |
20100060396 | Coil Former and Coil Body For An Electromagnetic Relay - A coil former for an electromagnetic relay is configured to receive a core and a coil winding. The coil former includes a first coil flange, a second coil flange, and a cylindrical winding area for fixing a coil winding arranged between the first and second coil flange, wherein at least one of the coil flanges is shaped such that at least a portion of one coil flange sits flush with the winding area of the coil former in a region of a periphery of the coil former. Also, a coil body for an electromagnetic relay includes a base integrally connected to the coil former. The coil former or the coil body is formed such that, in the production thereof, it has no more than three demolding directions for a master mould. | 03-11-2010 |
20100073117 | COIL UNIT OF ELECTROMAGNETIC CONTACTOR AND ASSEMBLING METHOD THEREOF - In a coil unit of an electromagnetic contactor in which a coil having a coil strand wound around a flanged bobbin is mounted on a leg of a stationary core of an operating electromagnet, into one flange of the bobbin are press fitted a pair of terminal metal pieces respectively corresponding to an initial side and final side lead wires of the coil, and each of the terminal metal pieces is formed with a press fitting base making the terminal metal piece press fitted into the one flange, a coil connecting arm around which the lead wire of corresponding side of the coil is wound and a tab terminal made to have a plug-in connection with a connector of an extension lead. | 03-25-2010 |
20100253453 | COIL FOR ELECTROMAGNET - A coil for an electromagnet used in a clutch for a compressor of a vehicle is disclosed. The coil consists of a plurality of aluminum wires coated with an insulator and wound around a bobbin, in which the plurality of wires are simultaneously wound around the bobbin, and the wound wires are connected in parallel with each other. As compared with a copper wire, although a volume of the aluminum wires is increased, the whole resistance value is low, and thus, the heating value is reduced. Since the heating value of the aluminum wires is equal, the electromagnet has the same performance in a saturation state. | 10-07-2010 |
20100271159 | Electromagnetic Coil Design for Improved Thermal Performance - Methods and apparatus for improving the thermal performance of electromagnetic coils are disclosed. According to one aspect of the present invention, an electromagnetic actuator includes a core and a coil. The coil is formed form a conductor wire that includes a plurality of windings. The windings are arranged around the core, and include at least a first set of windings and a second set of windings. The first set of windings has a different geometry from the second set of windings. | 10-28-2010 |
20110095854 | COIL TERMINAL - According to one embodiment, a coil terminal is electrically connected to a coil being wound around an electromagnetic block and connected to a coated wire. The coil terminal includes a connection portion electrically connected to the coil, and a terminal body portion extending from the connection portion and connected to the coated wire. The terminal body portion includes a slit formed in the longitudinal direction of the coated wire from one end to the other end of the terminal body portion, a base portion formed on the other end of the coil terminal, and a pair of parallel beam portions extending toward one end of the coil terminal from the base portion with the slit interposed between the pair of beam portions. The pair of beam portions may protrude in a thickness direction of the terminal body portion. The coated wire may be disposed within the slit and a core wire at the tip end of the coated wire may be soldered to the base portion. | 04-28-2011 |
20110115589 | METHOD AND APPARATUS FOR SHAPING A MAGNETIC FIELD IN A MAGNETIC FIELD-ENHANCED PLASMA REACTOR - A magnetic field generator which provides greater control over the magnetic field is provided. The magnetic field generator has a plurality of overlapping main magnetic coil sections for forming a magnetic field generally parallel to the top surface of the supporting member. In other embodiments, sub-magnetic coil sections are placed symmetrically around the main magnetic coil sections. | 05-19-2011 |
20110273251 | SHAPED COILS FOR TRANSCRANIAL MAGNETIC STIMULATION - Described herein are shaped coil TMS electromagnets formed by two bent magnetic coil loops joined at a vertex having an angle between the outer coil regions of the coils that is typically less than 120 degrees (e.g., between about 45 and about 70 degrees, 60 degrees, etc.). The vertex region shaped to optimize the magnetic field projected from the TMS electromagnet. For example, the vertex region may be horizontal or vertical. In some variations the vertex region is formed by re-arranging the conductive windings forming the two coils so that they are no longer arranged in the same columnar structure that they are in the other portions of the bent magnetic coil loops. These TMS electromagnets may be well suited for use in deep-brain Transcranial Magnetic Stimulation. | 11-10-2011 |
20110291782 | SOLENOIDAL MAGNETS HAVING SUPPORTED OUTER COILS - In a solenoidal electromagnet arrangement for a magnetic resonance imaging system, annular inner coils and annular end coils are provided, all concentrically aligned about an axis, the end coils being placed at axial extremities, axially outside of the inner coils. A pair of annular outer coils are provided concentrically aligned about the axis. An arrangement is provided retaining the pair of outer coils against an axial force urging the outer coils away from one another. The arrangement comprises strap elements which extend around a radially inner surface, a radially outer surface and an axially outer surface of each outer coil in certain circumferential locations. Each strap element on one of the outer coils is linked to a corresponding strap element on the other outer coil of the pair by a tensile member. | 12-01-2011 |
20110316656 | COIL ASSEMBLY FOR GUIDING A MAGNETIC OBJECT IN A WORKSPACE - A coil assembly for guiding a magnetic object, such as an endoscopy capsule, in a workspace, wherein the magnetic object exhibits a magnetic dipole, includes different versions of coil assemblies having a number of individual coils and corresponding activation units for feeding current to the respective coils. The coil arrangement can have exactly eleven individual coils and eight power amplifiers, nine individual coils and seven power amplifiers, eight individual coils with six or seven power amplifiers, six individual coils with five power amplifiers, and five individual coils with five power amplifiers. | 12-29-2011 |
20120154085 | ACTUATOR ARRANGEMENT - An actuator arrangement for an electromagnetically operated fuel injector includes a pole member having a first end face and defining an aperture extending from the first end face and an actuator core received within the aperture. The actuator core carries at least one contact member having a contact face that is exposed through the aperture. An encapsulating member is received within the aperture and surrounds the at least one contact member. The first end face of the pole member, the contact face and the encapsulating member are arranged to provide the actuator arrangement with a substantially planar surface for mating with an adjacent component, in use. | 06-21-2012 |
20120154086 | Electronic device as well as a base part and an electronic element suitable for use in such an electronic device - An electronic device ( | 06-21-2012 |
20120274429 | COIL COMPONENT - A coil component | 11-01-2012 |
20130021125 | ELECTROMAGNETIC COIL ASSEMBLIES HAVING TAPERED CRIMP JOINTS AND METHODS FOR THE PRODUCTION THEREOF - Embodiments of an electromagnetic coil assembly are provided, as are embodiments of producing an electromagnetic coil assembly. In one embodiment, the electromagnetic coil assembly includes a coiled magnet wire, an inorganic electrically-insulative body encapsulating at least a portion of the coiled magnet wire, a lead wire extending into the inorganic electrically-insulative body to the coiled magnet wire, and a first tapered crimp joint embedded within the inorganic electrically-insulative body. The first tapered crimp joint mechanically and electrically connects the lead wire to the coiled magnet wire. | 01-24-2013 |
20130057372 | COILED MAGNETIC RING - This magnetic ring is formed by an upper U-shaped part and a lower U-shaped part, each upper and lower part comprising two vertical arms each introduced into a respective hole of the printed circuit board, each arm of the upper part being superimposed, within the respective hole and in a horizontal direction, on the corresponding arm of the lower part to set up magnetic continuity between these two parts of the magnetic ring. | 03-07-2013 |
20130076468 | LOCATION OF AN NTC RESISTOR IN AN ELECTROMAGNET - An arrangement of a NTC resistor in an electromagnet includes an electromagnetic coil comprising a main winding and a shunt winding, a coil carrier configured to have the electromagnetic coil be wound thereon, a first contact terminal and a second contact terminal configured to supply a voltage, a NTC resistor, a first contact lead comprising a first contact lead end, a second contact lead comprising a second contact lead end, and a third contact lead. The first contact lead, the second contact lead and the third contact lead are configured to interconnect the first contact terminal, the second contact terminal, the main winding, the shunt winding, and the NTC resistor. A fixing element is configured to be elastically deformable and to exert a spring force so as to fix the NTC resistor between the first contact lead end and the second contact lead end. | 03-28-2013 |
20130082809 | ELECTROMAGNETIC COIL ASSEMBLIES INCLUDING DISPARATE WIRE SPLICE CONNECTORS, DISPARATE WIRE SPLICE CONNECTORS, AND ASSOCIATED METHODS - Embodiments of a method are provided for joining a secondary wire to a magnet wire, such as a fine gauge aluminum or silver wire. Further provided are embodiments of a disparate wire splice connector and embodiments of an electromagnetic coil assembly including such a splice connector. In one embodiment, the electromagnetic coil assembly includes disparate wire splice connector having a first blind bore and a second blind bore. A coiled magnet wire having a segment inserted into the first blind bore is soldered to the disparate wire splice connector. A secondary wire having a segment inserted into the second blind bore is also soldered to the disparate wire splice connector such that the secondary wire is electrically coupled to the coiled magnet wire through the disparate wire splice connector. | 04-04-2013 |
20130093550 | ELECTROMAGNETIC COIL ASSEMBLIES HAVING BRAIDED LEAD WIRES AND METHODS FOR THE MANUFACTURE THEREOF - Embodiments of an electromagnetic coil assembly are provided, as are methods for the manufacture of an electromagnetic coil assembly. In one embodiment, the electromagnetic coil assembly includes a body of dielectric material, a coiled magnet wire at least partially embedded within the body of dielectric material, a braided lead wire extending into the body of dielectric material to the coiled magnet wire, and a joint buried within the body of dielectric material and mechanically and electrically coupling the braided lead wire and the coiled magnet wire. | 04-18-2013 |
20130099882 | PULSED MAGNET USING AMORPHOUS METAL MODULES AND PULSED MAGNET ASSEMBLY - A pulsed magnet includes a cylindrical coil part having a hollow opening, and amorphous metal modules disposed along an outer circumference of the coil part and extending in a normal direction, which results in facilitation of cooling and minimization of generation of an eddy current. | 04-25-2013 |
20130127572 | ACTUATION DEVICE - An electromagnetic actuation device with an actuation element, which can be adjusted relative to a stator on the basis of a magnetic actuation force which can be generated by the stator, wherein the stator has a coil winding, the winding wire of which is guided to a contact element bent at a bending region and is fixedly and electrically conductively connected to the same, wherein the contact element ( | 05-23-2013 |
20130154777 | ELECTROMAGNET FOR LOW FIELD NMR MEASUREMENTS AND METHOD FOR MANUFACTURING THEREOF - The invention relates to an electromagnet and a method manufacturing the same. The electromagnet includes a frame having a volume within, and a conductive wiring wound around the frame. In accordance with the invention the magnet includes at least two circular grooves having two walls parallel to the each other and perpendicular to the longitudinal axis of the frame, at least two wire stacks each including at least one substack, wherein the wire has a cross section, at least one of the walls separating the two circular grooves, and jump wiring interconnecting the stacks so that contributions from jump wires of the adjacent stacks to total axial directional current are cancelled in average by the current of the return current wire, such that their contribution to the resulting magnetic field at the sample volume is minimized. | 06-20-2013 |
20130176090 | SOLENOIDAL MAGNETS COMPOSED OF MULTIPLE AXIALLY ALIGNED COILS - A magnet assembly has a number of axially-aligned coils, the radial mid-point of each coil being axially-aligned with a portion of a radial extent of an adjacent coil in the assembly. Compression blocks are provided between adjacent coils at circumferential intervals, to retain the coils in fixed relative positions. | 07-11-2013 |
20130285776 | HIGH TEMPERATURE ELECTROMAGNETIC COIL ASSEMBLIES INCLUDING BRAZED BRAIDED LEAD WIRES AND METHODS FOR THE FABRICATION THEREOF - Embodiments of an electromagnetic coil assembly are provided, as are methods for the manufacture of an electromagnetic coil assembly. In one embodiment, the method for manufacturing an electromagnetic coil assembly includes the steps of providing a braided aluminum lead wire having a first end portion and a second end portion, brazing the first end portion of the braided aluminum lead wire to a first electrically-conductive interconnect member, and winding a magnet wire into an electromagnetic coil. The second end portion of the braided aluminum lead wire is joined to the magnet wire after the step of brazing. | 10-31-2013 |
20130285777 | HIGH TEMPERATURE ELECTROMAGNETIC COIL ASSEMBLIES INCLUDING BRAIDED LEAD WIRES AND METHODS FOR THE FABRICATION THEREOF - Embodiments of an electromagnetic coil assembly are provided, as are methods for the manufacture of an electromagnetic coil assembly. In one embodiment, the electromagnetic coil assembly includes coiled magnet wire and a braided lead wire, which has a first end segment electrically coupled to the coiled magnet wire and having a second end segment. The electromagnetic coil assembly further includes an electrically-conductive member to which the second end segment of the braided lead wire is crimped. | 10-31-2013 |
20140028425 | MAGNETIC FIELD MANIPULATION DEVICES - Magnetic field manipulation devices and magnetic actuators are disclosed. In one embodiment, a magnetic field manipulation device includes an iron base substrate having a surface, and at least four electrically conductive loops embedded in the surface of the iron substrate. The at least four electrically conductive loops are electrically coupled to one another, and are arranged in the surface of the iron substrate such that the magnetic field manipulation device diverges magnetic flux lines of a magnetic field generated by a magnetic field source positioned proximate the magnetic field manipulation device. In another embodiment, the at least four electrically conductive loops are electrically isolated such that the magnetic field manipulation device converges magnetic flux lines of a magnetic field generated by a magnetic field source positioned proximate the magnetic field manipulation device. | 01-30-2014 |
20140145806 | ELECTROMAGNETIC COIL ASSEMBLIES HAVING BRAIDED LEAD WIRES AND/OR BRAIDED SLEEVES AND METHODS FOR THE FABRICATION THEREOF - Embodiments of an electromagnetic coil assembly are provided, as are methods for the manufacture of an electromagnetic coil assembly. In one embodiment, the method includes joining a first end portion of a braided lead wire to a coiled magnet wire. A dielectric-containing material is applied in a wet-state over the coiled magnet wire and over the first end portion of the braided lead wire. The dielectric-containing material is cured to produce an electrically-insulative body in which the coiled magnet wire and the first end portion of the braided lead wire are at least partially embedded. Prior to application of the dielectric-containing material, the braided lead wire is at least partially impregnated with a masking material deterring wicking of the dielectric-containing material into an intermediate portion of the braided lead wire. | 05-29-2014 |
20140191829 | COIL WIRING ELEMENT AND METHOD OF MANUFACTURING COIL WIRING ELEMENT - A coil wiring element includes: a plurality of first wirings that are formed above a substrate and have a center portion and both end portions; a second resin portion that is formed above the substrate and support both end portions of each of the first wirings; a first resin portion that covers the center portion of each of the first wirings; a plurality of second wirings that are formed above the first resin portion and have both end portions; connecting portions that connect the first wirings to the second wirings and are supported by the second resin portion; and a coil wiring in which both end portions of the first wirings are connected to both end portions of the second wirings in series, the coil wiring being wound around the first resin portion in a spiral shape. | 07-10-2014 |
20140218145 | MAGNET ASSEMBLY - An electromagnet comprising a ferromagnetic yoke which comprises a yoke. Mutually opposing first and second pole pieces are provided. The first pole piece is provided with a planar coil having a first side facing the yoke and a second side facing the yoke. A balancing member is arranged on the second side of the planar coil to counterbalance the attractive force between the planar coil and the yoke. The other pole piece may also be provided with a corresponding balancing member. | 08-07-2014 |
20150042429 | MAGNETIC FIELD DISTRIBUTION CONTROL APPARATUS - A magnetic field distribution control apparatus includes a rod portion, a coil disposed at one side of an upper surface of the rod portion, and a ferrite movably disposed within the coil and configured to produce a magnetic field. | 02-12-2015 |
20150116063 | ELECTROMAGNETIC DEVICE AND CONDUCTIVE STRUCTURE THEREOF - A conductive structure for an electromagnetic device includes a conductive sheet and a plurality of protrusions. The conductive sheet includes two electrical connection terminals. The protrusions are arranged between the electrical connection terminals. The protrusions include a support. The support is connected to the conductive sheet. Adjacent two of the protrusions define a first heat dissipation passage. | 04-30-2015 |
20150137920 | Wiring Assembly and Method of Forming a Channel In A Wiring Assembly for Receiving Conductor and Providing Separate Regions of Conductor Contact with the Channel - A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact. | 05-21-2015 |
20150145625 | MAGNETIC FIELD GENERATING DEVICE AND OFFSET CALCULATING METHOD - A magnetic field generating device includes a triaxial Helmholtz coil | 05-28-2015 |
20150302963 | ELECTROMAGNETIC DRIVE COIL UNIT AND MOLDING METHOD THEREOF - A method of molding an electromagnetic drive coil unit is provided which can secure satisfactory strength and waterproof properties. In a method of molding an electromagnetic drive coil unit in which a stator assembly includes bobbins having stator coils wound thereon and yokes in which an inner yoke having magnetic pole teeth and an outer yoke having magnetic pole teeth are combined and in which the stator assembly and a power supply terminal supplying power to the bobbins are molded in a resin, an inner molding process is performed on the inside of the outer yoke in a state where ends of the stator coils of the stator assembly are connected to the power supply terminal and an outer molding process is performed to cover an outer circumference of the stator assembly having an inner molded portion and an outside of the power supply terminal after the inner molding process. | 10-22-2015 |
20160049232 | ELECTROMAGNETIC FIELD CONFINEMENT - The present application invention relates to the control of electromagnetic fields. It has particular relevance to magnetic flux coupling apparatus such as inductive power transfer pads for wireless power transfer systems. There is provided a magnetic flux coupling apparatus comprising a coil for generating or receiving magnetic coupling flux and a leakage flux element comprising material of a relatively high magnetic permeability. The leakage flux element is separated from the coil by a region of relatively low magnetic permeability and positioned to provide a controlled path for leakage flux independent of coupling flux. There is provided an electromagnetic wave absorber comprising a high permeability magnetic material arranged in a first layer; and a conductive or low permeability material arranged in a second layer. | 02-18-2016 |
20160093430 | MAGNETIC FIELD DISTRIBUTION CONTROL APPARATUS - A magnetic field distribution control apparatus includes a rod portion, a coil disposed at one side of an upper surface of the rod portion, and a ferrite movably disposed within the coil and configured to produce a magnetic field. | 03-31-2016 |
20160148739 | ELECTROMAGNETIC SWITCH FOR ENGINE STARTER - An electromagnetic switch includes a first and a second solenoid arranged in alignment in an axial direction of a housing and brings a pinion into mesh with a ring gear of an engine and close main contacts in a power supply circuit for an electric motor which cranks the engine. A retainer is provided which extends from a first bobbin of the first solenoid at least to a location of an air gap formed in a magnetic circuit of the second solenoid. The retainer holds a portion of a lead wire extending from a bobbin of the first solenoid at least in a range between the bobbin and the air gap, thereby minimizing inclination or deflection of the lead wire when the first and second solenoids are fabricated within the housing, thus facilitating the ease with which the first and second solenoids are mounted in place in the housing. | 05-26-2016 |
20160155553 | Bobbin, Winding Apparatus And Coil | 06-02-2016 |
20160196912 | DUAL LAYER WIRE COATINGS | 07-07-2016 |
335300000 | With cooling means | 8 |
20080224808 | FERROFLUIDIC COOLING AND ACOUSTICAL NOISE REDUCTION IN MAGNETIC STIMULATORS - A ferrofluid chamber has a housing that is adapted to be coupled to a component that generates a magnetic field of sufficient strength to stimulate anatomical tissue. In addition, a ferrofluid is disposed within the housing for cooling the component. | 09-18-2008 |
20090033450 | LOW EDDY CURRENT CRYOGEN CIRCUIT FOR SUPERCONDUCTING MAGNETS - A low eddy current cryogen circuit for superconducting magnets including at least a first cooling coil made of an electrically conducting material and having at least one electrical isolator incorporated in the first cooling coil. The electrical isolator is located to inhibit induced eddy current loops due to inductive coupling of the first cooling coil with eddy current inducing field sources. | 02-05-2009 |
20090108969 | APPARATUS AND METHOD FOR TRANSCRANIAL AND NERVE MAGNETIC STIMULATION - An electromagnet coil comprising Litz wire windings and power leads without break or interruption is cooled by a perfluorinated liquid by sensible and phase change heat transfer in a closed system. The electromagnet coil may be housed in a pentagonal or hexagonal pressure vessel to allow high packing densities in an array or helmet configuration. The helmet is then lowered over a human cranium for transcranial electromagnetic stimulation. The Litz wire windings reduce the power and voltages required for operation, yet allow production of over 2 T of accurately directed magnetic pulses for direct nerve or neuron stimulation. The perfluorinated liquid maintains the temperature of the helmet to less than 35-40° C., ensuring a comfortable temperature device for a human test subject. A utility cable connects the helmet to an external cooling unit and an external power supply. | 04-30-2009 |
20090251257 | Wiring Assembly And Method of Forming A Channel In A Wiring Assembly For Receiving Conductor and Providing Separate Regions of Conductor Contact With The Channel - A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact. | 10-08-2009 |
20100013584 | METHOD AND APPARATUS FOR ACTIVELY CONTROLLING QUENCH PROTECTION OF A SUPERCONDUCTING MAGNET - A method and apparatus for actively controlling quench protection of a superconducting magnet includes a magnetic resonance imaging (MRI) system and a computer readable storage medium having stored thereon a computer program comprising instructions which when executed by a computer cause the computer to detect a quench condition of the superconducting magnet. The instructions also cause the computer to actively control a quench protection system of the superconducting magnet in response to the detected quench condition. | 01-21-2010 |
20110128105 | METHOD FOR MANUFACTURING COIL, AND A COIL - A coil includes electrically conductive winding wire wound in turns around a core in one or more layers. The surface of the winding wire is provided with at least one groove in the direction of the longitudinal axis of the winding wire, and at least one cooling tube which enables coolant circulation is positioned in the groove of the winding wire, being at least partly embedded therein. The groove is formed on the surface of the winding wire of an outermost winding wire layer relative to the core and opens away from the core The cooling tube in the groove is placed around the outermost winding wire layer and covers the outermost winding wire layer at least partly. | 06-02-2011 |
20150137921 | Wiring Assembly and Method of Forming a Channel In A Wiring Assembly for Receiving Conductor and Providing Separate Regions of Conductor Contact with the Channel - A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method provides a first insulative layer tubular in shape and including a surface along which a conductor segment may be positioned. A channel formed in the surface of the insulative layer defines a first conductor path and includes a surface of first contour in cross section along a first plane transverse to the conductor path. A segment of conductor having a surface of second contour in cross section is positioned at least partly in the channel and extends along the conductor path. Along the first plane, contact between the conductor surface of second contour and the channel surface of first contour includes at least two separate regions of contact. | 05-21-2015 |
20160189845 | COOLING STRUCTURE FOR ELECTROMAGNETIC COIL, AND ELECTROMAGNETIC ACTUATOR - A cooling structure for a first electromagnetic coil includes the first electromagnetic coil having a space extending in the direction of a predetermined axis Z; a cooling member attached to an end surface, with respect to the direction of the predetermined axis Z, of the first electromagnetic coil and having a flow path for fluid internally formed; and an inlet pipe and an outlet pipe connected, within the space, to an inlet and outlet, respectively, of the flow path of the cooling member and extending through the space to a region outside the electromagnetic coil. | 06-30-2016 |