F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 7/007 (2006.01) F24F 7/10 (2006.01) F24F 13/068 (2006.01) F24F 13/06 (2006.01)
Patent
CA 2067575
AIR VENTILATION SYSTEM (Fig. 5) ABSTRACT An air ventilation system that employs a perforated floor 50 supported on a plurality of floor joists 70, an air permeable carpet 60, which is not perforated, that is placed on top of the perforated floor, at least one air exhaust vent 90 that is located at or near the ceiling 30 of the space 5 being ventilated, a duct 220 for conducting the exhaust air from the exhaust vent(s) to a pump 260, and a second duct 150 for transporting air from the pump to the space being ventilated, introducing air into channels 130, 140 formed by the floor joists.
Lephardt John O.
Tamol Ronald A.
Lephardt John O.
Philip Morris Products Inc.
Ridout & Maybee Llp
Tamol Ronald A.
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