EP 3114678 A1 20170111 - HIGH AND LOW FREQUENCY SOUND ABSORPTION ASSEMBLY
Title (en)
HIGH AND LOW FREQUENCY SOUND ABSORPTION ASSEMBLY
Title (de)
HOCH- UND NIEDERFREQUENTE SCHALLABSORPTIONSANORDNUNG
Title (fr)
ENSEMBLE D'ABSORPTION ACOUSTIQUE A HAUTES ET BASSES FREQUENCES
Publication
Application
Priority
- FR 1451735 A 20140304
- FR 2015050509 W 20150303
Abstract (en)
[origin: WO2015132521A1] The invention concerns a sound absorption assembly (1) comprising a body (2) having a tubular shape having ends closed respectively by first and second tensioned flexible micro-perforated layers (3, 4), and at least one planar diaphragm disposed inside the tubular body (2), between the flexible micro-perforated layers (3, 4), so as to delimit two spaces (6, 7) between said layers.
IPC 8 full level
G10K 11/168 (2006.01); E04B 9/00 (2006.01)
CPC (source: CN EP US)
E04B 1/84 (2013.01 - CN US); E04B 1/86 (2013.01 - CN); E04B 9/001 (2013.01 - EP US); F21V 33/00 (2013.01 - CN); G10K 11/168 (2013.01 - EP US); G10K 11/172 (2013.01 - US); E04B 2001/8461 (2013.01 - CN); E04B 2009/0492 (2013.01 - EP US)
Citation (search report)
See references of WO 2015132521A1
Citation (examination)
- US 2013148357 A1 20130613 - JOHNSTON RAYMOND P [US], et al
- EP 2251858 A1 20101117 - AKSYS GMBH [DE]
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)
WO 2015132521 A1 20150911; AU 2015225964 A1 20160825; AU 2015225964 B2 20200625; BR 112016019867 A2 20170815; BR 112016019867 B1 20221004; CA 2941314 A1 20150911; CA 2941314 C 20220426; CN 106103858 A 20161109; CN 106103858 B 20211116; DK 3114678 T3 20211220; EP 3114678 A1 20170111; EP 3114678 B1 20210915; FR 3018384 A1 20150911; FR 3018384 B1 20160311; US 10109269 B2 20181023; US 2016365079 A1 20161215
DOCDB simple family (application)
FR 2015050509 W 20150303; AU 2015225964 A 20150303; BR 112016019867 A 20150303; CA 2941314 A 20150303; CN 201580011760 A 20150303; DK 15713974 T 20150303; EP 15713974 A 20150303; FR 1451735 A 20140304; US 201515121408 A 20150303