EP 0396785 B1 19960612 - Device for the obstruction of ventilation installations
Title (en)
Device for the obstruction of ventilation installations
Title (de)
Vorrichtung zum Absperren von Lüftungseinrichtungen
Title (fr)
Dispositif d'obturation d'installations de ventilation
Publication
Application
Priority
EP 89105492 A 19890328
Abstract (en)
[origin: EP0396785A1] The device for the obstruction of ventilation installations consists of a U-shaped frame 3, in which there are arranged, in the direction of flow and at a distance from one another, lamellae 4, 6, 7, 8, 9, 10 made of a material which in the event of fire foams and hermetically seals the cross-section. Of these lamellae, every second lamella is mounted pivotably about its vertical centre axis so that the intermediate space between two firmly installed lamellae can be sealed. At temperatures up to approximately 65 DEG C, the obstruction device does not respond for at least an hour, whereas at a trigger temperature of approximately 70 DEG C, by means of a control device, a pivoting movement of the rotatably mounted lamellae begins, and at at least 100 DEG C the sealing material foams. In the range up to 100 DEG C, the obstruction device therefore operates reversibly. <IMAGE>
IPC 1-7
IPC 8 full level
A62C 2/14 (2006.01)
CPC (source: EP)
A62C 2/14 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0396785 A1 19901114; EP 0396785 B1 19960612; AT E139134 T1 19960615; DE 58909690 D1 19960718; ES 2087856 T3 19960801; GR 3020308 T3 19960930
DOCDB simple family (application)
EP 89105492 A 19890328; AT 89105492 T 19890328; DE 58909690 T 19890328; ES 89105492 T 19890328; GR 960401678 T 19960620