| 摘要 |
A dryer exhaust vent for connecting an interior clothes dryer exhaust duct to the atmosphere includes a generally square frame portion, a generally cylindrical connecting duct section integral with the frame portion and four arcuate fins which are pivotally retained in the frame portion. A central flow passageway extends from the free end of the connecting duct section through the frame portion and exits on the opposite side of the frame portion. This flow passageway permits communication between the dryer exhaust duct and the atmosphere such that hot air exhausted by electric or gas clothes dryers is released from the home or structure in which the dryer is used to the outside atmosphere. The back side of the frame portion abuts against the outer surface of the structure and the generally cylindrical connecting duct section extends through to the interior of the structure. The four arcuate fins are outwardly and upwardly movable in response to dryer exhaust pressure from a closed position, wherein the flow passageway is closed, to an opened position wherein the flow passageway is open. When the four fins are in the closed position, the fins are virtually flush with the outermost surface of the frame portion thereby providing a low profile exterior structural arrangement which does not interfere with mowing grass or trimming in areas which are adjacent the wall of the structure.
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