Ventilation – Having both inlet and outlet airways – Including automatic control means
Patent
1991-02-01
1993-01-12
Joyce, Harold
Ventilation
Having both inlet and outlet airways
Including automatic control means
454252, 454342, F24F 7007
Patent
active
051785811
ABSTRACT:
A smoke evacuation system for a building made of modular units includes sets of modular units disposed to each other and joined by a wall so as to allow a space between the modular units to define an air intake chamber. Each modular unit has a window which communicates with an air intake chamber. Each air intake chamber has an opening with an air intake fan. Each modular unit includes a chase with a window for exhausting air from the modular unit. The chases of the modular units are situated one to another so as to allow a continuous flow of air therethrough. A roof covers all of the modular units and air intake chambers, but has openings for the respective chases. Exhaust fans are mounted in said roof openings for exhausting air and smoke from said modular units. A smoke detector is installed in each chase to detect smoke in each corresponding modular unit and chase. Each smoke detector in each chase of each modular unit responds to the presence of smoke in its corresponding chase and modular unit, by closing its smoke detector electrical circuit, thereby causing its said air intake fan to operate so as to draw fresh air into the affected modular units and, by means of the exhaust fans, to remove smoke-filled air from the affected modular units and corresponding chases, that removal of smoke-filled air being done in a push and pull form of action.
REFERENCES:
patent: 4058253 (1977-11-01), Munk et al.
patent: 4944216 (1990-07-01), McCutchen
patent: 5033360 (1991-07-01), Sacks
Genca Samuel R.
Joyce Harold
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