General Atomics, Inc.

Cdc Partners

William Patrick Creedon

John R Purcell

Chandrashekhar H Joshi

Sibley C Burnett

Michael Heiberger

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. The tapered section is shaped as a truncated cone and is attached to a proximal end of the vacuum vessel. The tapered cone extends distally and projects radially into the vacuum chamber. The tapered cone passes through an interface in the thermal shield and is connected to a second end of the annular section. The annular section extends proximally from the tapered section and includes a first end that is connected to the magnet coil assembly.

Inner cold-warm support structure for superconducting magnets

Improved Stirling cycle machine including at least a pair of eccentric disks fixed to a pair of rotatable shafts in phase with each other and which eccentric disks upon rotation of the shafts (in opposite directions in the preferred embodiment) also rotate (in opposite directions in the preferred embodiment) and impart upward movement to a bellows defining a variable-volume compression or expansion chamber with a reduced tendency to also impart side thrust, rocking motion, or lateral movement to the bellows whereby bellows wear is reduced and the life of the bellows and the Stirling cycle machine is increased.

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San Diego, CA, United States of America

William Patrick Creedon