EP 3005726 B1 20170111 - ACOUSTIC SYSTEM HAVING A HOUSING WITH ADSORBENT POWDER
Title (en)
ACOUSTIC SYSTEM HAVING A HOUSING WITH ADSORBENT POWDER
Title (de)
AKUSTISCHES SYSTEM MIT EINEM GEHÄUSE MIT ADSORBIERENDEM PULVER
Title (fr)
SYSTÈME ACOUSTIQUE POURVU D'UN BOÎTIER CONTENANT UNE POUDRE ADSORBANTE
Publication
Application
Priority
- DE 102013210696 A 20130607
- EP 2014061872 W 20140606
Abstract (en)
[origin: WO2014195476A1] The invention relates to an acoustic system, in particular a transducer, having a housing (2) which encloses a volume and in which at least one surface, or a sub-surface, is formed by a sheet-like structure (1) which is mounted for vibration, wherein powder (3) made of adsorbent material is present in the volume, wherein the powder (3) is selected such that vibration of the sheet-like structure (1) mounted for vibration causes movement of the powder (3) in the volume such that an adsorption-active surface is raised up, wherein the adsorbent material is selected such that an increase in pressure brought about by vibration of the sheet-like structure (1) mounted for vibration gives rise to adsorption of air or gas located in the volume and lowering in pressure brought about by vibration of the sheet-like structure (1) mounted for vibration gives rise to desorption of air or gas located in the volume. The powder (3) here is freely movable in the housing.
IPC 8 full level
H04R 1/28 (2006.01); H04R 21/02 (2006.01)
CPC (source: EP US)
H04R 1/28 (2013.01 - EP US); H04R 1/2803 (2013.01 - US); H04R 1/2807 (2013.01 - US); H04R 1/288 (2013.01 - US); H04R 1/2888 (2013.01 - US); H04R 29/001 (2013.01 - US); H04R 21/02 (2013.01 - EP US)
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)
WO 2014195476 A1 20141211; CN 105532015 A 20160427; CN 105532015 B 20200317; DE 102013210696 A1 20141211; EP 3005726 A1 20160413; EP 3005726 B1 20170111; ES 2615055 T3 20170605; KR 102234407 B1 20210330; KR 20160019089 A 20160218; US 10178468 B2 20190108; US 2016127821 A1 20160505
DOCDB simple family (application)
EP 2014061872 W 20140606; CN 201480043688 A 20140606; DE 102013210696 A 20130607; EP 14734409 A 20140606; ES 14734409 T 20140606; KR 20167000278 A 20140606; US 201414895978 A 20140606