AIR STACK OR SHAFT HAVING NATURAL FLUID CURRENT MOTOR:
Rotary device comprising a pipe, cylinder, column, or other conduit through which the working fluid* is nonmechanically induced to flow. The working fluid flows through the pipe, cylinder, column, or other conduit to or from a natural body of air and the device obtains mechanical power from kinetic or potential energy associated with this flow (i.e., "motor"* device).
(1) Note. The working fluid current is induced to flow by nonmechanical means such as by convection, by a naturally occurring pressure differential, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2.1+, for a natural fluid current motor device with means for controlling a casing or other flow guiding means in response to natural fluid current force or direction.
