Ventilation system for an enclosed space
OwnerGuu Pernginventor
Life of this patent
Estimating the term…
Abstract
A ventilation system for an enclosed occupied space, such as house, school, large building, etc., comprising a fresh air inlet and a fresh air passage provided at the lower side of vertical hollow walls, the fresh air passage having a plurality of fresh air outlet for supplying fresh air into the space, a plurality of exhaust air inlets provided on the ceiling of the space, a first exhaust air discharge passage communicated with the exhaust air inlets and lies in the ceiling, a second exhaust air discharge passage communicated with the first discharge passage and lies in a vertical wall, and an exhaust air outlet at the top of the second exhaust air passage.
Claims8
A ventilation system for an enclosed occupied space defined by hollow walls and a ceiling comprising a fresh air inlet and a fresh air passage provided in the lower side of the walls, said fresh air passage having a plurality of fresh air outlet for supplying fresh air into the space, a plurality of exhaust air inlets provided in the ceiling of the space, a first exhaust air discharge passage communicated with said exhaust air inlets and lying in the ceiling, a second exhaust air discharge passage communicated with said first discharge passage and lying in the wall, an exhaust air outlet at the top of said second exhaust air passage, means for preventing backdraft at the exhaust air outlet, said means including a roof-shaped member having a first and a second flow regulating arrangement each of which has a plurality of overlapping slats for opening and closing said air outlet, the first and second flow regulating arrangement being so arranged that when one of them is fully closed, the other will be fully opened.
Dependencies are inferred from the claim text.