A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on the frame, and a plurality of pivotable...http://www.google.com/patents/US7025086?utm_source=gb-gplus-sharePatent US7025086 - Reverse flow preventing device and electronic apparatus
