Patent ID: 7567157

Claim:
A superconductive machine comprising: a plurality of stacked coil elements, each of the stacked coil elements formed from a high-T c superconductor inner core which is embedded in a normally conductive matrix material outer core; and each of the stacked coil elements having a plurality of turns such that the stacked coil element is continuous and approximately planar within a plane, with a first end of each of the stacked coil elements joining a second end of each of the stacked coil elements opposite the first end, the stacked coil element having a width greater than a height, the width of the stacked coil element extending approximately parallel to the plane of the stacked coil element, wherein each of the stacked coil elements is disposed substantially proximate to at least one other of the stacked coil elements; each of the stacked coil elements is produced in the form of a strip, without any additional process to form insulation thereon, each of the stacked coil elements is contaminated on its outer surfaces during production, and there is a contact resistance of at least 10 μΩ between adjacent stacked coil elements.