75673091
Mar 26, 1999
Aug 20, 2002
Electric, electronic and electromechanical machines and apparatus, namely electric motors with magnetic journals; magnetically self-supporting electric rotors; electric motors with magnetically self-supporting rotors; electric motors with magnetic bearings; electric motors with frictionless bearings; and combined electric motors and impellers for fluids
Machineryelectric and electronic controls for magnetically journalled, rotating parts and for electromagnetic bearings, namely, controls for controlling voltage, current, frequency, rotational speed and/or linear speed, bearing forces, eccentricities, and temperatures for use with electrical and electronic apparatus and machines; and controls for motors with magnetically journalled rotating parts, and for motors having electromagnetic bearings for rotors and/or rotating parts
Electrical and Scientific Apparatus