(under subclass 162) Subject matter comprising a nozzle which ejects a high velocity flow stream to draw air from the ventilated space to atmosphere.
(1) Note. The high velocity flow stream is usually diverted natural air current (i.e., wind) resulting from movement of the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
22+, for a chimney or stacktop which uses a diverted natural air current to induce flow in the outlet airway.
39+, for other chimney or stacktop structures which use current inducing jets to induce flow in the outlet airway.
116, for a railcar, bus, or trailer which uses a current inducing jet (often wind caused by the movement of the vehicle) to induce flow in the outlet airway.
