(under subclass 538) Subject matter in which means are provided for relatively moving the rotor element axially (i.e., along the axis about which the motor revolves) with respect to the remainder of the motor structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115, for motor systems having a motor having plural, diverse types of motion which commonly include axial movement. See (2) Note to the definition of subclass 538 for the distinction between the subclass and subclass 115.
SEE OR SEARCH CLASS
322, Electricity: Single Generator Systems,
51, for generator systems wherein the generator is controlled by moving or adjusting the rotor element axially.