Electric motor having a spherical rotor and its application apparatus

A space stabilizer for maintaining an attitude of an article regardless of a change in attitude of an apparatus to which the article is mounted, said stabilizer comprising:

• a rotor consisting of a shell, said shell having a spherical outer surface and a hollow interior;
• a plurality of permanent magnets arrayed along a series of intersecting lines and embedded in the shell at the outer surface thereof, and all adjacent magnetic poles of all of said permanent magnets having polarities opposite to one another;
• a support having a spherical surface confronting the spherical surface of said rotor which allows the rotor to rotate freely in any direction of rotation relative to the support, said support including a stator extending along the outer surface of said rotor, said stator having an inner surface confronting said rotor;
• a plurality of electromagnets disposed on said inner surface of said stator opposite said permanent magnets;
• a gyro disposed in the hollow interior of said shell;
• and control means responsive to a signal issued from said gyro for transmitting an operation signal to said electromagnet which will maintain said rotor at a predetermined orientation relative to said stator.