EP 0712480 A1 19960522 - DEVICE FOR AUTOMATICALLY SUPPLYING AIR TO PREMISES SUBJECTED TO A PARTIAL VACUUM
Title (en)
DEVICE FOR AUTOMATICALLY SUPPLYING AIR TO PREMISES SUBJECTED TO A PARTIAL VACUUM
Title (de)
SELBSTSTÄTIGE VORRICHTUNG FÜR DIE EINSPEISUNG VON LUFT IN EINEN RAUM MIT UNTERDRUCK
Title (fr)
DISPOSITIF AUTOMATIQUE D'ALIMENTATION EN AIR D'UN LOCAL EN DEPRESSION
Publication
Application
Priority
- FR 9400999 W 19940810
- FR 9309996 A 19930810
- FR 9313539 A 19931108
Abstract (en)
[origin: WO9504903A1] Device of the type including an air inlet pipe fitted with at least one shutter flap connecting the building with the exterior. According to the invention, the device comprises: at least one flexible bag (4) made from an airtight material, placed in an enclosure (3) communicating with the interior (1) of the building to be supplied, the inner volume of the bag being connected with the exterior (E) of the building, through a passage (5) with a small cross-section; means for directly or indirectly connecting each bag (4) and each flap (6); and means (4, 8, 9, 10) for holding each shutter flap in a closed position while the pressure difference between the building interior and exterior does not exceed a predefined value, and for holding each shutter flap in an open position so long as the pressure difference between the building interior and exterior does not drop below another predefined value, less than the value required to open the flap.
IPC 1-7
IPC 8 full level
F24F 11/04 (2006.01); F24F 11/75 (2018.01); F24F 13/10 (2006.01)
CPC (source: EP KR US)
F24F 11/74 (2017.12 - EP KR US); F24F 11/75 (2017.12 - EP); F24F 11/89 (2017.12 - KR); F24F 13/10 (2013.01 - EP KR); F24F 2013/087 (2013.01 - EP KR)
Citation (search report)
See references of WO 9504903A1
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9504903 A1 19950216; EP 0712480 A1 19960522; FR 2708994 A1 19950217; FR 2708994 B1 19960515; KR 100347814 B1 20021107; KR 960704197 A 19960831
DOCDB simple family (application)
FR 9400999 W 19940810; EP 94924907 A 19940810; FR 9313539 A 19931108; KR 19960700685 A 19960209