EP 2062617 A1 20090527 - A damper
Title (en)
A damper
Title (de)
Brandschutzklappe
Title (fr)
Clapet coupe-feu
Publication
Application
Priority
GB 0717018 A 20070801
Abstract (en)
A fire and/or smoke damper for a duct comprises a blade pivotally disposed in a frame for movement between an open position and a closed position in said duct. The blade has a peripheral channel that supports a seal for sealing engagement with the inner surface of the frame. The seal comprises a core of intumescent material and a deformable sleeve surrounding said core with an air gap. The sleeve provides sealing at low temperatures. In the event of a fire the intumescent material expands at high temperatures to maintain the seal but is retained in position by the sleeve.
IPC 8 full level
CPC (source: EP)
A62C 2/065 (2013.01); A62C 2/12 (2013.01)
Citation (search report)
- [XY] WO 2007068786 A1 20070621 - FLAEKT WOODS AB [SE], et al
- [Y] US 3980272 A 19760914 - NAKAI TAKAO, et al
- [Y] EP 0447944 A1 19910925 - SCHAKO METALLWARENFABRIK [DE]
- [A] DE 29507931 U1 19950810 - WILDEBOER WERNER DIPL ING [DE]
- [A] DE 20317181 U1 20050317 - GLUSKE GMBH [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2062617 A1 20090527; EP 2062617 B1 20110831; AT E522252 T1 20110915; GB 0717018 D0 20071010
DOCDB simple family (application)
EP 08252384 A 20080711; AT 08252384 T 20080711; GB 0717018 A 20070801