Fire and smoke free system for high rise building stairways

Details Fire and smoke free system for high rise building stairways Fire and smoke free system for high rise building stairways

1975-11-18

1977-10-18

Wayner, William E.

Fire extinguishers

Special applications

Condition responsive control

98 43A, 169 61, F24F 700

Patent

active

040540847

ABSTRACT:
A fire and smoke free stairway in the event of fire in high rise buildings can be maintained by developing a velocity pressure of air through the fire doorway, from the fire stairway each time the door is opened during evacuation and without pressurizing the stairway significantly.

REFERENCES:
patent: 2154410 (1939-04-01), Polk
patent: 3715968 (1973-02-01), Henson
patent: 3739707 (1973-06-01), Knapp
patent: 3817161 (1974-06-01), Koplon
patent: 3826180 (1974-07-01), Hayashi
patent: 3884133 (1975-05-01), Miller
patent: 3926101 (1975-12-01), Moss
patent: 3952452 (1976-04-01), Hebda

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