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| Number | Title | Issue Date |
| 7395675 | Superconducting cable cooling system A superconducting cable cooling system, wherein coolant continually provides cooling to superconducting cable, comprising a plurality of nodes within a superconducting cable network and a plurality of legs of superconducting cable which interconnect each of the node... | 07/08/2008 |
| 7388148 | Device for feeding electricity to a superconductive apparatus under medium or high voltage A device for feeding electricity under high voltage to a superconductive apparatus is situated in a cryostat. The device comprises two bushings each comprising a first connection terminal situated outside the cryostat, and a second connection terminal situated insid... | 06/17/2008 |
| 7375933 | High voltage design structure for high temperature superconducting device In accordance with the present invention, modular corona shields are employed in a HTS device to reduce the electric field surrounding the HTS device. In a exemplary embodiment a fault current limiter module in the insulation region of a cryogenic cooling system has... | 05/20/2008 |
| 7224242 | Microwave filter assembly A filter element (28) having planar (48) or cavity (30) geometry having applied thereto a coating (38, 39, 50, 53) of temperature super conducting (HTS) material in which the filter element (28) or coating of HTS material is provid... | 05/29/2007 |
| 6900714 | System and method for quench and over-current protection of superconductor A system and method for protecting a superconductor. The system may comprise a current sensor operable to detect a current flowing through the superconductor. The system may comprise a coolant temperature sensor operable to detect the temperature of a cryogenic cool... | 05/31/2005 |
| 6730851 | Superconducting cable and current transmission and/or distribution network including the superconducting cable A superconducting cable includes a cryogenic fluid, a superconducting conductor, and a cryostat. A layer impervious to the cryogenic fluid is provided between the superconducting conductor and the cryogenic fluid. The superconducting conductor operates in a space su... | 05/04/2004 |
| 6444917 | Encapsulated ceramic superconductors The invention features a superconducting conductor for use in a preselected fluid cryogen including a composite ceramic superconducting wire having an outer surface along its length; and a sealing structure hermetically surrounding the outer surface to pr... | 09/03/2002 |
| 6342673 | Method of maintaining a superconducting cryolink at low temperature Method of maintaining a superconducting cryolink at low temperature by a flow of liquid nitrogen produced by a liquefier feeding one end of a link section, wherein the section is fed by a single liquefier and nitrogen is drawn off from at least one interm... | 01/29/2002 |
| 6239957 | Current limiting device An electrical current limiting device comprises an electrical superconductor for attachment in an electrical circuit. The superconductor achieves a superconducting condition at relatively high temperatures. A cooling system includes a motor for flowing a ... | 05/29/2001 |
| 6153825 | Superconducting current lead A superconducting current lead includes a cylindrical support member 3, and superconducting wire material units 1 each of which is fixed onto the support member and each of which is composed of a single tape-like oxide superconducting wire material or a l... | 11/28/2000 |
| 6049036 | Terminal for connecting a superconducting multiphase cable to a room temperature electrical equipment A terminal for connecting a superconducting multiphase cable, a superconducting three-phase cable for example, to a room temperature electrical equipment is described. The terminal includes a casing with cooling fluid, inside which the three cable superco... | 04/11/2000 |
| 6034324 | Modular high temperature superconducting down lead with safety lead A self-protected modular high temperature superconducting (HTS) down-lead that is capable of carrying large currents from a room temperature power source to a superconducting device operating at cryogenic temperatures. This down-lead incorporates a safety... | 03/07/2000 |
| 5861574 | Apparatus for mounting a superconducting element An apparatus for mounting a superconducting element includes a first chamber which accommodates a first coolant and maintains the superconducting element at a very low temperature, a second chamber which accommodates a second coolant and is thermally conn... | 01/19/1999 |
| 5859386 | Superconductive electrical transmission line An electrical transmission line for conveying and limiting current by using a plurality of tubular portions made from a superconductive material. The tubular portions have a high critical temperature and are connected end-to-end by flexible, electrically ... | 01/12/1999 |
| 5759960 | Superconductive device having a ceramic superconducting lead resistant to breakage A superconductive device (e.g., magnet) having a superconductive lead assembly and cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end thermally connected to the first stage and a second end... | 06/02/1998 |
| 5648638 | Low-temperature current transfer structure with heat exchanger In a low-temperature current transfer structure including a conductor with a cold end for connection to a superconductive component and a warm end for connection to a bus, there are provided heat exchange regions around the conductor at the cold end and a... | 07/15/1997 |
| 5620798 | Aluminum stabilized superconductor supported by aluminum alloy sheath A new design for an aluminum stabilized superconductor which embeds the superconducting cable within a high purity aluminum stabilizer. This stabilizer is, in turn, partially surrounded by an aluminum alloy sheath. The aluminum alloy sheath is constructed... | 04/15/1997 |
| 5563369 | Current lead A superconducting magnet is arranged in a helium tank, and the superconducting magnet cooled to a very low temperature by liquid helium in the helium tank is connected to a power source kept at room temperature by a current lead and a current lead. The cu... | 10/08/1996 |
| 5432297 | Power lead for penetrating a cryostat A multiple circuit hybrid cryostat power lead has a plurality of laterally spaced, electrically isolated lead elements inside a tubular enclosure. Each lead element has an inner section with a high temperature superconducting (HTS) conductor inward of a d... | 07/11/1995 |
| 5376755 | Composite lead for conducting an electrical current between 75-80K and 4.5K temperatures A composite lead is provided which electrically links and conducts a current between about 75-80K. and liquid helium temperature of about 4.5K. The composite lead may be employed singly or in multiples concurrently to provide conduction of electrical curr... | 12/27/1994 |
| 5340943 | Method of using oxide superconducting conductor Disclosed herein is a method of using an oxide superconducting conductor in a state including a transition region between a superconducting state and a normal conducting state, i.e., a flux flow state, by supplying the oxide superconducting conductor with... | 08/23/1994 |
| 5324891 | Superconducting connecting leads having thermal plug A thermal plug which provides an electrical connection between first and second regions at different temperatures includes a plurality of interleaved heat transfer resistive laminae and heat conductive laminae. The laminae are stacked together to form a l... | 06/28/1994 |
| 5319154 | Method of cooling a current feed for very low temperature electrical equipment and device for implementing it A current feed extends between a terminal at ambient temperature and an electrical equipment immersed in a cryogenic fluid and adapted to operate at variable current. The current feed is cooled by circulating an auxiliary cooling fluid at ambient temperat... | 06/07/1994 |
| 5298679 | Current lead for cryostat using composite high temperature superconductors A vapor cooled current lead for a superconducting device located in a cryostat includes a normal conductor section extending from ambient conditions inward to an intermediate point, and a composite lead having a ceramic high temperature superconductor cor... | 03/29/1994 |
| 5183970 | Oriented superconductors for AC power transmission A superconductive transmission line is formed of mixed metallic oxide ceramic material, particularly Y1 Ba2 Cu3 O7-x drawn epitaxially upon a substrate. The superconductive material has basal crystallographic pl... | 02/02/1993 |
| 5183965 | Ceramic superconducting downlead An electrical conductor particularly suited for use as a downlead to low temperature devices includes a ceramic honeycomb body having longitudinal channels wherein films of substantially single crystals of a ceramic superconductor are grown. The maximum c... | 02/02/1993 |
| 5166474 | Superconducting device Superconducting fluids are disclosed. The fluid is made by dispersing a superconducting oxide ceramic powder in a liquid nitrogen. A magnetic field shielding device is constructed by disposing the fluid in a suitable container which is adapted to have the... | 11/24/1992 |
| 5132487 | Superconductor transmission line An improved transmission system for electrical energy comprising a plurality of ball members interspersed by mating members enclosed within at least one protective outer wrapping, with the ball members and the mating members being in contact with adjacent... | 07/21/1992 |
| 5120705 | Superconducting transmission line cable connector providing capacative and thermal isolation A transmission line using superconductors instead of conventional conductors substantially reduces ohmic losses compared to conventional conductors. The superconductors are cooled by refrigerant flowing through a hollow superconducting inner conductor. Th... | 06/09/1992 |
| 5114908 | Superconductive conductor A superconductive conductor (1) is formed by at least three superconducting wires (3) comprising oxide superconductor members (4) and stabilizing members (5), which are point-symmetrically arranged in section. The superconducting wires (3) are so point-sy... | 05/19/1992 |
| 5073679 | Superconducting conductor having multiple transposed strands with internal cooling channels, and method of manufacture A superconducting conductor comprises a first fraction of prior-tinned strands (1, 3, 5, 7, 9, etc. . . . ) and an additional fraction of non-prior-tinned strands (2, 4, 6, 8, 10, etc., . . . ). The strands of the first fraction and of the additional frac... | 12/17/1991 |
| 5057645 | Low heat loss lead interface for cryogenic devices A lead interface for a superconducting device has a segment of normal conducting lead electrically connected to a segment of superconducting lead coiled within a dewar. The superconducting lead is adapted to be cooled to below the superconductor critical ... | 10/15/1991 |
| 5044406 | Pipe made from a superconducting ceramic material A pipe comprises a hollow support member made from a member selected from copper and copper compounds and a copper oxide superconducting ceramic material which covers the inner surface of the support member with a space kept in the pipe for use in a magne... | 09/03/1991 |
| 5036305 | Segmented interlayer spacer bars for multilayer superconducting solenids A spacer bar, or system of spacer bars, interposed between coil layers of a coil structure. The spacer bar comprises a block of electrical insulating material adapted to be arranged between adjacent layers of a coil. The spacer bar may comprise several sp... | 07/30/1991 |
| 4992623 | Superconducting bus bar An electronic system having components operating at low temperature at various locations within the system, cryogenic fluid and electrical power are distributed by means of the same conduit. In one embodiment, the conduit consists of a supply section and ... | 02/12/1991 |
| 4965246 | Current-carrying lead formed of a ceramic superconductive material carried by a support A current-carrying lead that may be connected between a source of current and a superconducting device and which comprises a ceramic superconductor and a support made of an insulator, a nonmagnetic metal or a good electrical conductor. The lead may be con... | 10/23/1990 |
| 4947007 | Superconducting transmission line system A superconducting transmission line system for transferring electrical power over long distances. The system includes a superconducting transmission line extending from a first location where power is supplied to the line to a second location where electr... | 08/07/1990 |
| 4872314 | Superconducting coil refrigerating method and superconducting apparatus In a superconducting coil refrigerating method and a superconducting apparatus, a flow of liquid helium is induced in a helium vessel only at a specified time upon change of a current of the superconducting coil, before the current change and/or after the... | 10/10/1989 |
| 4858512 | Electromagnetic launcher with cryogenic cooled superconducting rails A railgun with superconducting rails. The device features rails made from ceramic materials capable of becoming superconducting at relatively high temperatures. Some embodiments utilize rails made entirely from superconducting ceramics while other embodim... | 08/22/1989 |
| 4842366 | Ceramic superconductor and light transmitting composite wire A ceramic type superconductive layer (2) is formed on the outer peripheral surface of an optical fiber (1), and a stabilizing layer (3) is formed so that it contacts the outer peripheral surface of the superconductive layer (3). The diameter of the optica... | 06/27/1989 |
