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Electrical connection structure for a superconductor element

United States Patent

May 4, 2010
View the Complete Patent at the US Patent & Trademark Office
The invention relates to an electrical connection structure for a superconductor element cooled by a cryogenic fluid and connected to an electrical bushing, which bushing passes successively through an enclosure at an intermediate temperature between ambient temperature and the temperature of the cryogenic fluid, and an enclosure at ambient temperature, said bushing projecting outside the ambient temperature enclosure. According to the invention, said intermediate enclosure is filled at least in part with a solid material of low thermal conductivity, such as a polyurethane foam or a cellular glass foam. The invention is applicable to connecting a superconductor cable at cryogenic temperature to a device for equipment at ambient temperature.
Lallouet; Nicolas (62132 Fiennes, FR), Maguire; James (Andover, MA)
11/ 373,816
March 9, 2006
GOVERNMENT LICENSE RIGHTS This invention was made with government support under contract No. DE-FC36-00GO13032 awarded by the Department of Energy (DOE). The government has certain rights in the invention.