Smoke detection and ventilation system

Details Smoke detection and ventilation system Smoke detection and ventilation system

1997-03-13

2000-04-25

Joyce, Harold

Ventilation

Having forced recirculation

454236, 454342, F24F 710

Patent

active

060538090

ABSTRACT:
A system for detecting the presence of smoke within a building and providing means to remove the smoke, into the airspace above the ceiling thereby preventing or at least alleviating smoke inhalation, property damage, and allowing more time for the safe evacuation from the premises. The system is comprised of a conventional smoke detector which activates control means for raising and lowering a generally planar panel which is installed in a ceiling. Smoke is removed from the airspace below the ceiling to the airspace above the ceiling. An optional fan, remote fan relay, exhaust vent and back draft damper further aid in the exhausting of the smoke from the building. A fusible link in the control means protects the ceiling fire rating.

REFERENCES:
patent: 3923096 (1975-12-01), Van Der Lely
patent: 4176587 (1979-12-01), Cox
patent: 4765231 (1988-08-01), Aniello
patent: 4805835 (1989-02-01), Schaus
patent: 4867376 (1989-09-01), Arceneaux et al.

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