Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8107211 | High temperature superconducting electromechanical system with frequency controlled commutation for rotor excitation A system and method for generating a magnetic field in a rotating machine. In one embodiment, a primary winding assembly is configured to generate a rotatable magnetic field. The assembly is connected to receive multiple signals of different phases to effect field r... | 01/31/2012 |
| 8027139 | System and method for superconducting magnet ramp-down A system for ramping-down a superconducting magnet includes an electrically conductive lead connectable to a superconducting magnet and a plurality of diode assemblies arranged in series and coupled to the electrically conductive lead. Switches are arranged in paral... | 09/27/2011 |
| 7606019 | Magnet coil system with active drift compensation for two independent current paths A magnet coil system (2) which is at least partially superconducting at a cryogenic temperature, comprising at least two partial coils (3, 4, 5) which are connected in series and are each bridged by a superconducting switch (6, 7, 8), such that ... | 10/20/2009 |
| 7400223 | Superconducting magnet configuration with resistive elements A magnet configuration comprising a superconducting magnet coil system (M) and a current path (P) which comprises parts of the magnet coil system (M), wherein at least two electric connecting points (A1, A2, A3, A4) are disposed on the cu... | 07/15/2008 |
| 7317369 | Superconductor magnet coil configuration A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is charact... | 01/08/2008 |
| 7304852 | Inverter apparatus An inverter assembly including a storage compartment for multiple cables adapted to be releasably connected to the inverter. A body of the inverter assembly includes interior and exterior fins for the dissipation of heat energy. ... | 12/04/2007 |
| 7298602 | Automated superconducting magnet ramp-up system and method The present invention provides for a novel technique for placing superconducting magnets into operation. For example, the technique provides for automatically controlling ramp-up of a superconducting magnet. In one aspect, the technique includes connecting a power s... | 11/20/2007 |
| 7224250 | Superconducting magnet apparatus This invention provides a superconducting magnet apparatus capable of preventing or restraining the heat invading into the apparatus and reducing the refrigeration load of an external refrigerator, at the time of changeover of a switch in transiting to a persistent ... | 05/29/2007 |
| 7215250 | Proximity detaching for electronic article surveillance tags A reusable EAS tag that is detachable from an article by placing the EAS tag in proximity to a detaching device is provided. The tag includes an energy coupler, a micro-actuator, and a clamping mechanism. The detaching device transmits a signal to the EAS tag to sig... | 05/08/2007 |
| 7196883 | Superconducting magnet system with quench protection circuit A superconducting magnet system with a quench protection circuit includes a superconducting magnet having a plurality of series-connected superconducting coils, a persistent current switch connected in parallel with the superconducting coils, and first and second qu... | 03/27/2007 |
| 7161777 | Superconducting magnet system with quench protection circuit A superconducting magnet system includes resistive heaters and bidirectional diodes connected in series with each other installed in a superconducting coil protection circuit, and a diode is installed in a persistent current switch protection circuit. ... | 01/09/2007 |
| 7142410 | Transformer with housing and switch gear A transformer is formed by a housing having a main transformer compartment, a first compartment for the input terminals for the main power supply, a second compartment for the output terminals to supply the load and a third compartment for a manually operable switch... | 11/28/2006 |
| 7073513 | Superconducting magnetic control system for manipulation of particulate matter and magnetic probes in medical and industrial applications A system and method of controlling movement of magnetic material with at least first and second high temperature superconductors at spaced locations. A plurality of solenoids are associated with the superconductors to induce a persistent currents in preselected high... | 07/11/2006 |
| 7068133 | Flux pump having a high-temperature superconductor and a superconducting electromagnet which can be operated by way of the flux pump A flux pump of the rectifier type having high-temperature superconductors with switches, which can be controlled by way of a heater, in particular with trigger pulses D′ and self-stabilization in time with the rectifier is disclosed. An arrangement of the flux pum... | 06/27/2006 |
| 7048716 | MR-compatible devices A catheter is used for medical treatments within an organism. The catheter comprises at least one lumen. Within the at least one lumen are at least two microcatheters, with at least one of the at least two microcatheters being connected to a source of liquid materia... | 05/23/2006 |
| 7023673 | Superconducting shielded core reactor with reduced AC losses A superconducting shielded core reactor (SSCR) operates as a passive device for limiting excessive AC current in a circuit operating at a high power level under a fault condition such as shorting. The SSCR includes a ferromagnetic core which may be either closed or ... | 04/04/2006 |
| 7002348 | Cryogenically cooled phased array RF receiver coil for magnetic resonance imaging An RF coil construction for MRI is disclosed. The construction includes a device for cryogenically cooling receiver coils, at least two coil elements being cryogenically cooled by the device and forming an array. Each coil element includes at least two capacitors fo... | 02/21/2006 |
| 6975118 | Supersensitive nuclear magnetic resonance micro imaging apparatus It is possible to grasp the behavior of a protein in a cell by realizing a nuclear magnetic resonance imaging method having spatial resolutions on the scale of a cell, and to provide an industrial measure for developing a high-quality protein utilizing this technolo... | 12/13/2005 |
| 6958898 | Flux pump with a superconductor and superconducting electromagnet to be operated therewith A device includes a flux pump and an electromagnet to be fed thereby for the production of highly constant magnetic fields of high field strength. In a flux pump of the rectifier type, switches used are MOSFETs. These MOSFETs include HTc superconductor ma... | 10/25/2005 |
| 6946936 | Superconducting magnet system with continously operating flux-pump and associated methods for operating thereof A magnet arrangement comprising a superconducting magnet coil system (M) which has an ohmic resistance (R) of zero or more during operation, and a flux pump (P) which comprises at least one superconducting switch and at least two superconducting secondary coils (M | 09/20/2005 |
| 6897749 | Magnetic energy storage device A superconducting magnetic energy storage (SMES) device including a first coil made of superconducting material, a cooling mechanism for cooling the first coil to superconducting temperatures, a second coil inductively coupled to the first coil for inputting emergy ... | 05/24/2005 |
| 6842324 | Apparatus and method for controlling movement of an object through a medium using a magnetic field Apparatus and method for controlling movement of an object through a medium using a magnetic field by combining the magnetic field of a primary electromagnetic coil having a central axis with the magnetic fields of a plurality of secondary electromagnetic coils havi... | 01/11/2005 |
| 6838964 | Method and apparatus for monitoring superconducting magnet data Remote monitoring of superconducting magnet systems of various types, manufacturers, vintages, and so forth, via a magnet selector interface providing for configuring the monitoring system to the particular magnet system of interest. The technique provides for scala... | 01/04/2005 |
| 6793502 | Press (non-soldered) contacts for high current electrical connections in power modules An electrical connector for use in a power module includes a first end portion for forming an electrical connection with a substrate, a second end portion, and a compliant portion situated between the first end portion and the second end portion. The compliant porti... | 09/21/2004 |
| 6751075 | Superconducting fault current controller/current controller A superconducting fault current controller/current controller employs a superconducting-shielded core reactor (SSCR) with a variable impedance in a secondary circuit to control current in a primary circuit such as an electrical distribution system. In a second embod... | 06/15/2004 |
| 6717781 | Balanced quench protection circuit A superconducting magnet electrical circuit is provided for quench protection. A superconducting coil assemblage is provided including a plurality of spatially separated main and secondary magnet coil portions. The main magnet coil portions are connected in series t... | 04/06/2004 |
| 6646836 | Superconducting magnet apparatus in persistent mode A superconducting magnet circuit includes, besides a closed circuit formed of a plurality of unit superconducting coils 2a and 2b connected in series and a first persistent-current switch 4, a second persistent-current switch 5 which forms a closed circui... | 11/11/2003 |
| 6639767 | Semiconductor switching devices Self-quenching switching elements are connected in series in a semiconductor switching device. Snubber circuits including a diode, a capacitor, and a non-linear circuit are connected in parallel with the respective semiconductor switching elements. In the... | 10/28/2003 |
| 6624732 | Superconducting magnet assembly and method A superconducting magnet assembly comprises a superconducting magnet (1) which, under working conditions, generates a magnetic field in a working volume, the superconducting magnet being connected in parallel with a superconducting switch (3), the switch ... | 09/23/2003 |
| 6524684 | Resistive current-limiting device with at least one printed conductor covered by an insulating layer by using high Tc superconductive material A current-limiting device contains at least one conductor track including high Tc superconductor material, on a support body. The conductor track is provided with a cover layer including an insulating plastic material, which includes a filler w... | 02/25/2003 |
| 6424135 | High power drive from AC and DC sources using cryoelectronics A method and apparatus for powering a high power load (on the order of 50,000 watts or more) can have an input from any of a plurality of different voltage sources, AC or DC. In one embodiment, the AC sources can have a frequency in the range of 162/3-60 ... | 07/23/2002 |
| 6241671 | Open field system for magnetic surgery A system of navigating a magnetic medical device within that part of a patient located within an operating region of the system, the system comprising magnets, and preferably electromagnets, arranged to provide a magnetic field sufficient to navigate the ... | 06/05/2001 |
| 6236545 | Current limiting device utilizing a superconductor A current limiting device comprises a first superconducting element for connection in an electrical circuit. The superconducting element has a critical current density. A second superconducting element detects the onset of a fault condition. A coil is res... | 05/22/2001 |
| 6147844 | Quench protection for persistant superconducting magnets for magnetic resonance imaging A quench protection circuit for the series connected but spatially separated magnet coils of a superconducting magnet utilizes a parallel circuit of multiple heaters and reverse connected diodes shunting portions of the series connected magnets coils with... | 11/14/2000 |
| 6128174 | Method and apparatus for rapidly changing a magnetic field produced by electromagnets A method and apparatus for ramping current in an electromagnet in which a coil is used to generate the magnetic field provides rapid changes in the generated magnetic field. The method allows a change in current in the coil to be accomplished more rapidly... | 10/03/2000 |
| 6108214 | Mounting structure of superconducting circuit Plural units each composed of a metallic frame and a dielectric substrate mounted on the frame are stacked on one another, thereby forming a unitary case. A superconducting circuit such as a resonator is formed on an upper surface of the substrate, and a ... | 08/22/2000 |
| 6094333 | Operation control method for superconducting coil A control method allowing stable operation of a refrigerator conduction cooling type superconducting coil employing an oxide high temperature superconductor is provided. Thermal resistance between a refrigerator and a superconducting coil connected to a c... | 07/25/2000 |
| 6016094 | Superconducting short circuit current limiter In a superconducting short circuit current limiter for an AC power supply net including an iron core, a primary coil and a secondary short-circuited superconductive coil, both being magnetically coupled with the iron core but being arranged at a distance ... | 01/18/2000 |
| 5828291 | Multiple compound conductor current-limiting device A current limiting device including at least one superconductor and at least one nonsuperconducting shunt resistor in parallel with each superconductor. Each superconductor has a first main superconductor face in contact with a main shunt resistor face of... | 10/27/1998 |
| 5654864 | Control method for magnetic stereotaxis system A control method permits the operation of multiple superconducting magnetic coils so as to move a magnetic object to precisely specified locations within the body under command of a physician-operator observing the motion with live fluoroscopic imaging fu... | 08/05/1997 |
