Reinhart, Boerner, Van Deuren, Norris & Rieselbach, s.c.
Method for obtaining large levitation pressure in superconducting magnetic bearings
 A method and apparatus for compressing magnetic flux to achieve high levitation pressures. Magnetic flux produced by a magnetic flux source travels through a gap between two high temperature superconducting material structures. The gap has a varying cross-sectional area to compress the magnetic flux, providing an increased magnetic field and correspondingly increased levitation force in the gap. 
University of Chicago
F H
F16C H02N
inventional inventional
John R.
Hull