The invention is a variable reluctance motor using a stator comprised of a plurality of single tooth poles, wound so that every other pole of the same phase is of oppposite polarity. A movable member is also provided with a plurality of single tooth pole members. The spacing of rotor and stator poles...http://www.google.de/patents/US4794286?utm_source=gb-gplus-sharePatent US4794286 - Variable reluctance stepper motor
