Ventilation – Having outlet airway – With air pump
Reexamination Certificate
2007-05-01
2007-05-01
Wilson, Gregory (Department: 3749)
Ventilation
Having outlet airway
With air pump
C454S357000, C454S903000, C454S306000
Reexamination Certificate
active
10688993
ABSTRACT:
A system for introducing make-up air into a building from above the roof for smoke control includes air shafts extending from the roof into a space in the building below a layer of smoke. The air shafts can be rigid or can be made of a flexible material which folds up when not in use. Air shafts of a flexible material have a contraction at the exit to inflate the shaft, unless the shaft extends to within one diameter from the floor.
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FM Global Technologies LLC
Merek & Blackmon & Voorhees, LLC
Wilson Gregory
LandOfFree
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