Patent ID: 8650888
Filing Date: 2014-02-18
Classification: H01F,H01R

Abstract:
1. A cryogenic assembly operable to support an electrical, electronic or magnetic device immersed in a cryogenic fluid said cryogenic assembly comprising: a cryogenic fluid container; and a service neck tube having a bounding wall that encloses an interior thereof, and being operable to provide access from an ambient atmosphere to the cryogenic fluid container via said interior; wherein, the service neck tube comprises at least one positive and one negative current lead, which positive and negative current leads form respective distinct current paths that extend from an ambient temperature end of the service neck tube to a cryogenically cooled end thereof, and are electrically insulated from each other; said bounding wall of the service neck tube itself forms a first one of said positive and negative current leads; the second one of said positive and negative current leads is provided in the form of a conductor that is disposed within the bounding wall of the service neck tube; and a space between the bounding wall of the service neck tube and the second one of the positive and negative current leads forms a gas flow path from said cryogenic fluid container to an ambient environment, for venting evaporated cryogenic fluid from said cryogenic fluid container.