Rolling motors, i.e. motors having the rotor axis parallel to the stator

Official title: Rolling motors, i.e. motors having the rotor axis parallel to the stator axis and following a circular path as the rotor rolls around the inside or outside of the stator {; Nutating motors, i.e. having the rotor axis parallel to the stator axis inclined with respect to the stator axis and performing a nutational movement as the rotor rolls on the stator}

H02K41/06 (Rolling motors, i.e. motors having the rotor axis parallel to the stator) appears on 130 US grants and 112 published applications in this corpus.