EP 0919778 A3 20020911 - Balanced vent
Title (en)
Balanced vent
Title (de)
Ausgeglichene Lüftungsöffnung
Title (fr)
Aérateur équilibré
Publication
Application
Priority
GB 9725131 A 19971127
Abstract (en)
[origin: EP0919778A2] A vent comprises a duct (16) defining a vent passageway having a vent passageway exit and a vent cover (24) movable between a first aperture position and a second aperture position in which the vent passageway exit is fully covered and is not fully covered, respectively. There is an aperture (140) in a duct side wall which is closed when the vent covers (24) is in the first operative position and open to allow air to pass to or from the vent passageway through the aperture when the vent cover (24) is in a third operative position in which the vent passageway exit is also fully covered. The vent cover (24) may be a second vent cover, which are interlinked so as to be constrained to move together, either towards each other to cover the vent passageway exit or away from each other to uncover the vent passageway exit. In this latter embodiment the operative is optional. <IMAGE>
IPC 1-7
IPC 8 full level
F24F 7/02 (2006.01)
CPC (source: EP)
F24F 7/02 (2013.01)
Citation (search report)
- [X] US 1850793 A 19320322 - HAWES HAROLD B
- [X] US 2895399 A 19590721 - JOHN O'HEA IGNATIUS
- [X] GB 1149958 A 19690423 - LENSCRETE LTD [GB], et al
- [A] DE 4403633 C1 19950302 - EBERSPAECHER J [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0919778 A2 19990602; EP 0919778 A3 20020911; EP 0919778 B1 20050601; AT E296996 T1 20050615; DE 69830377 D1 20050707; DE 69830377 T2 20060126; GB 9725131 D0 19980128
DOCDB simple family (application)
EP 98309332 A 19981113; AT 98309332 T 19981113; DE 69830377 T 19981113; GB 9725131 A 19971127