Brushless direct current motor and torquer

Claim 1

AN ELECTRIC MOTOR ENERGIZABLE FROM A SOURCE OF UNIDIRECTIONAL POTENTIAL WHICH COMPRISES: (A) A ROTOR HAVING MAGNETIC POLES OF OPPOSITE POLARITY THEREON; (B) A STATOR MEMBER HAVING A PAIR OF FLUX-PRODUCING WINDINGS POSITIONED IN TORQUE-PRODUCING RELATION WITH SAID ROTOR; (C) A PAIR OF HALL GENERATORS POSITIONED IN FLUX-SENSING RELATIONSHIP TO SAID MAGNETIC POLES; (D) LINEAR CONTROL AMPLIFIER MEANS FOR APPLYING CONTINUOUS CURRENTS TO SAID STATOR WINDINGS; (E) MEANS CONNECTING EACH OF SAID HALL EFFECT GENERATORS TO THE CONTROL AMPLIFIER MEANS IN SUCH A MANNER THAT EACH OF SAID HALL GENERATORS SUPPLIED A CONTROL SIGNAL TO SAID CONTROL AMPLIFIER MEANS TO ENERGIZE SAID WINDINGS AND PRODUCE A CONSTANT DRIVING TORQUE ON SAID ROTOR BY PRODUCING WINDING CURRENTS WHICH ARE RESPECTIVELY SINE AND COSINE FUNCTIONS OF SAID ROTOR POSITION; AND (F) MEANS INCLUDING ELECTRIC SIGNAL MEANS FOR SUPPLYING CONTROL OF THE MAGNITUDE OF THE CONSTANT DRIVING TORQUE TO SAID LINEAR CONTROL AMPLIFIER MEANS.