EP 0160543 A2 19851106 - Ventilator which is closable to inhibit spread of smoke and fire.
Title (en)
Ventilator which is closable to inhibit spread of smoke and fire.
Title (de)
Schliessbare Ventilationsvorrichtung zum Verhindern der Verbreitung von Rauch und Feuer.
Title (fr)
Aérateur pouvant être fermé pour empêcher la diffusion de fumée et de feu.
Publication
Application
Priority
GB 8410927 A 19840427
Abstract (en)
A ventilator comprises: a panel (1) having at least one ventilation opening; at least one shutter (4) movably mounted on the panel, the shutter or shutters in a first position allowing flow of air through the ventilation opening or openings and in a second position closing the opening or openings; means, such as electromagnetic means (15), for holding the shutter or shutters in said first position; means, (13) for holding the shutter or shutters in said second position; means, such as springs (14), for effecting movement of the shutter or shutters from said first position to said second position; and sealing means (5, 6,11,12,13) which when the shutter or shutters are in said second position cooperate with the shutter and the panel to provide a seal extending substantially completely around the ventilation opening or openings.
IPC 1-7
IPC 8 full level
A62C 2/24 (2006.01); F24F 13/12 (2006.01)
CPC (source: EP)
A62C 2/247 (2013.01); F24F 13/12 (2013.01); F24F 11/35 (2017.12)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0160543 A2 19851106; EP 0160543 A3 19860205; AU 4171885 A 19851031; GB 2161918 A 19860122; GB 2161918 B 19881012; GB 8410927 D0 19840606; GB 8510632 D0 19850605; ZA 853158 B 19860129
DOCDB simple family (application)
EP 85302977 A 19850426; AU 4171885 A 19850426; GB 8410927 A 19840427; GB 8510632 A 19850426; ZA 853158 A 19850429