Patent ID: 7544124
Filing Date: 2009-06-09
Classification: F24F

Abstract:
1. A passive vent device for allowing air to flow from a vented enclosure comprising: a) a base component having an outer flange surrounding a central opening; b) a vertical wall surrounding said central opening and extending upwardly from said base component; c) grill structure supported by said vertical wall adapted to permit air to flow through said central opening and said grill structure; d) a dome-shaped top cover having a top surface and a radiused peripheral edge defining a continuous downwardly depending wall which terminates in a bottom edge suspended over said vertical wall so that said bottom edge is spaced from said flange and said downwardly depending wall is spaced outwardly from said vertical wall to define an air flow path upwardly through said central opening, outwardly through said grill structure, downwardly between said vertical wall and said downwardly depending wall and outwardly between said flange and said substantially circular bottom edge; and e) an angled diverter extending substantially around the periphery of said vertical wall and extending upwardly and outwardly from a vertical support defining a space between said vertical wall and said vertical support, said diverter further defining an outer edge which extends into and constricts but does not completely obstruct the air flow path between said vertical wall and said downwardly depending wall.