Abstract: A bearing-shaft assembly includes a shaft having a first cylindrical section and a second cylindrical section axially separated by a first annular groove. A bearing is arranged around the annular groove and axially overlaps with the first and second cylindrical sections. A first bushing fills a radial gap between the inner race of the bearing and the first cylindrical section. The first bushing has a first radial collar radially overlapping with the inner race and axially overlapping with the first cylindrical section. A second bushing fills a radial gap between the inner race and the second cylindrical section. The second bushing has a second radial collar radially overlapping with the inner race and axially overlaps with the second cylindrical section. The second bushing fills the first annular groove and is made of a softer material than the first bushing.

Abstract: The invention is directed to a method and system for automatic management of targeted marketing campaigns. The system may include user interface presentation components for allowing selection of marketing matrix data defining a target population and selection of suppressions for limiting the target population. The system may further include integration components implemented by a processor for integrating the marketing matrix with the suppressions and automatically generating record selection components for automatically selecting records from a database based on the marketing matrix data and suppressions and creating a selection table including the selected records. Additionally, the system may include a list generation engine for generating a campaign list based on the created selection table and transmission components for transmitting the generated campaign list to at least one list recipient.

Abstract: The invention is directed to a method and system for automatic management of targeted marketing campaigns. The system may include user interface presentation components for allowing selection of marketing matrix data defining a target population and selection of suppressions for limiting the target population. The system may further include integration components implemented by a processor for integrating the marketing matrix with the suppressions and automatically generating record selection components for automatically selecting records from a database based on the marketing matrix data and suppressions and creating a selection table including the selected records. Additionally, the system may include a list generation engine for generating a campaign list based on the created selection table and transmission components for transmitting the generated campaign list to at least one list recipient.

Abstract: A homopolar machine produces an axial counter force on the rotating shaft to compensate for the load on the shaft's thrust bearing to reduce wear and noise and prolong bearing life. The counter force is produced through magnetic interaction between the shaft and the machine's field coils and is created by changing the current excitation of the field coils, which results in a magnetic flux asymmetry in an inner flux return coupled to the shaft. The homopolar machine may also have a configuration that uses current collectors that maintain substantially constant contact pressure in the presence of high magnetic fields to improve current collector performance. The current collectors are flexible and may be made from either electrically conductive fibers or stacked strips such that they bear up against the armature so that the pressure is maintained by the spring constant of the current collector material.

Abstract: A homopolar machine produces an axial counter force on the rotating shaft to compensate for the load on the shaft's thrust bearing to reduce wear and noise and prolong bearing life. The counter force is produced through magnetic interaction between the shaft and the machine's field coils and is created by changing the current excitation of the field coils, which results in a magnetic flux asymmetry in an inner flux return coupled to the shaft. The homopolar machine may also have a configuration that uses current collectors that maintain substantially constant contact pressure in the presence of high magnetic fields to improve current collector performance. The current collectors are flexible and may be made from either electrically conductive fibers or stacked strips such that they bear up against the armature so that the pressure is maintained by the spring constant of the current collector material.

Abstract: A homopolar machine produces an axial counterforce on the rotating shaft to compensate for the load on the shaft's thrust bearing to reduce wear and noise and prolong bearing life. The counterforce is produced through magnetic interaction between the shaft and the machine's field coils and is created by changing the current excitation of the field coils, which results in a magnetic flux asymmetry in an inner flux return coupled to the shaft. The homopolar machine may also have a configuration that uses current collectors that maintain substantially constant contact pressure in the presence of high magnetic fields to improve current collector performance. The current collectors are flexible and may be made from either electrically conductive fibers or stacked strips such that they bear up against the armature so that the pressure is maintained by the spring constant of the current collector material.

Abstract: A homopolar machine produces an axial counterforce on the rotating shaft to compensate for the load on the shaft's thrust bearing to reduce wear and noise and prolong bearing life. The counterforce is produced through magnetic interaction between the shaft and the machine's field coils and is created by changing the current excitation of the field coils, which results in a magnetic flux asymmetry in an inner flux return coupled to the shaft. The homopolar machine may also have a configuration that uses current collectors that maintain substantially constant contact pressure in the presence of high magnetic fields to improve current collector performance. The current collectors are flexible and may be made from either electrically conductive fibers or stacked strips such that they bear up against the armature so that the pressure is maintained by the spring constant of the current collector material.

Abstract: A superconductor device which including a magnet coil assembly and support structures. The magnet coil assembly consists of superconducting wire which is encased in a composite structure along with an integral thermal interface. This combination forms the magnet coil assembly. The magnet coil assembly is cooled to an operating temperature of about 5K with a conductive cooling device that physically connects with the thermal interface integral to the magnet coil assembly. A cold-to-warm support structure supports the magnet coil assembly within a vacuum vessel while thermally isolating it from the external environment Structurally, the magnet coil assembly is cylindrically shaped and positioned within a toriodal shaped thermal shield which is positioned within a toroidal shaped vacuum vessel. The cold-to-warm support structure supports the magnet coil assembly spaced apart from the thermal shield. The cold-to-warm support structure includes a tapered section and an annular section.

Abstract: A demountable thermal coupling for engaging a refrigeration unit with a cryogenic device includes a collet assembly which is slidingly mounted against a retainer ring in the passageway of a sleeve assembly. When the refrigeration unit is engaged with the sleeve assembly, the collet assembly closes onto a cooling probe of the refrigeration unit to establish a thermal contact between the cooling probe and the collet assembly. An interconnect between the collet and the superconducting device then allows the cooling probe to cool the superconducting device. Withdrawal of the cooling probe from the collet disengages the refrigeration unit from the superconducting device.

Abstract: A shuntable low loss variable current vapor cooled lead (VCVCL) configuration delivers current to and from a superconductive load, such as a superconductive magnet, immersed in a cryogenic liquid in a way that minimizes the boil-off rate of the cryogenic liquid. The VCVCL configuration includes superconductive lead assemblies containing superconductive segments. The assemblies are connected in parallel between the superconductive load and an output current source or sink. Each assembly is controlled so that its superconducting segment is either superconducting or non-superconducting.