EP 2604942 B1 20161228 - Gas extraction opening with automatic adjustment and method for manufacturing such an opening
Title (en)
Gas extraction opening with automatic adjustment and method for manufacturing such an opening
Title (de)
Gasextraktionsöffnung mit automatischer Regulierung, und Herstellungsverfahren einer solchen Öffnung
Title (fr)
Bouche d'extraction de gaz à réglage automatique et procédé de fabrication d'une telle bouche
Publication
Application
Priority
FR 1103895 A 20111216
Abstract (en)
[origin: EP2604942A1] The mouth (1) has a flexible, self-supporting and elastic membrane (6) with a wing (7) fixed to a crosspiece of a case (2). The wing overhangingly extends relative to orifices (5) of the case in a rest position in absence of an extraction gas flow (F) to bend and partially seal the orifices. The membrane has curvature and/or elasticity variable based on moisture to oppose inflection of the membrane under effect of the flow so that flow rate of the flow traversing the mouth is simultaneously variable based on moisture of the flow and a difference in pressure on both sides of a partition (3). The membrane has a support film made of a hydrophobic material and assembled with a hygrosensible film that is made of hygrosensible material e.g. poly hexamethylene adipamide. The hydrophobic material is chosen from metal, PVC and polyethylene terephthalate. An independent claim is also included for a method for manufacturing a gas extraction mouth to be mounted in an opening of a partition.
IPC 8 full level
F24F 11/00 (2006.01); F24F 11/75 (2018.01); F24F 13/10 (2006.01)
CPC (source: EP US)
F24F 11/75 (2017.12 - EP US); F24F 13/10 (2013.01 - EP); F24F 11/30 (2017.12 - EP); F24F 2110/20 (2017.12 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2604942 A1 20130619; EP 2604942 B1 20161228; FR 2984465 A1 20130621; FR 2984465 B1 20131220
DOCDB simple family (application)
EP 12194694 A 20121128; FR 1103895 A 20111216