EP 3990744 A1 20220504 - DOUBLE-WALLED UNIT
Title (en)
DOUBLE-WALLED UNIT
Title (de)
DOPPELWANDIGE EINHEIT
Title (fr)
INSTALLATION A DOUBLE PAROI
Publication
Application
Priority
- FR 1907071 A 20190627
- EP 2020068082 W 20200626
Abstract (en)
[origin: WO2020260622A1] Double-walled unit. The invention relates to a unit comprising a double wall and an active control system. The double wall defines a cavity. The active control system comprises one or more loudspeakers which are arranged in the cavity. Each of the one or more loudspeakers has a membrane. At least one loudspeaker is arranged in such a manner that its membrane is substantially parallel with the walls of the double wall and the loudspeaker has a thickness which is strictly less than the thickness of the cavity. The invention constitutes an improved unit comprising a double wall and an active control system.
IPC 8 full level
E06B 5/20 (2006.01); E06B 3/67 (2006.01); G10K 11/178 (2006.01)
CPC (source: EP)
B32B 17/10036 (2013.01); B32B 17/10055 (2013.01); B32B 17/10761 (2013.01); E06B 3/6707 (2013.01); E06B 5/20 (2013.01); G10K 11/17823 (2017.12); G10K 11/17857 (2017.12); G10K 11/17875 (2017.12); G10K 2210/12 (2013.01)
Citation (search report)
See references of WO 2020260622A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3097893 A1 20210101; FR 3097893 B1 20210723; EP 3990744 A1 20220504; WO 2020260622 A1 20201230
DOCDB simple family (application)
FR 1907071 A 20190627; EP 2020068082 W 20200626; EP 20734404 A 20200626