In an automobile air flow system, air is forced through an air outlet element or nozzle (13, 21, 24) in a sweeping air stream pattern by an oscillating reed or vane member (42) supported solely at the downstream end (43) for air initiated oscillatory movement in the flow path of the air from the source;...http://www.google.com.au/patents/US4437392?utm_source=gb-gplus-sharePatent US4437392 - Sweeping air stream apparatus and method
