EP 2434067 A3 20140910 - Metal composite sound absorbent structural panel
Title (en)
Metal composite sound absorbent structural panel
Title (de)
Schalldämpfendes Metallverbundstoff-Strukturpaneel
Title (fr)
Panneau structurel absorbant les sons en composite métallique
Publication
Application
Priority
IT MI20100293 U 20100922
Abstract (en)
[origin: EP2434067A2] A metal composite sound absorbent structural panel, characterized in that said panel has a high flexural thickness and comprises two flat plates coupled by glueing a fret element, made of aluminium, steel or other metals or alloys and comprising a first and second plate elements adapted to be coupled to one another thereby being substantially parallel, through an interposition of a corrugated coupling element comprising a fretted element; on one or both said plate elements being formed a double hole series: a series of vertical holes and a series of horizontal holes; the hole pattern geometry of one of said plate elements or both said plate elements, independent from one another, being made based on a Hemholtz resonance principle.
IPC 8 full level
E04B 1/86 (2006.01)
CPC (source: EP)
E04B 1/86 (2013.01); E04C 2/08 (2013.01); E04C 2/3405 (2013.01); G10K 11/172 (2013.01); E04B 2001/8433 (2013.01); E04C 2002/3455 (2013.01)
Citation (search report)
- [Y] EP 1098294 A2 20010509 - CWW GERKO AKUSTIK GMBH & CO KG [DE], et al
- [Y] DE 1264021 B 19680321 - GRUENZWEIG & HARTMANN
- [A] GB 1373063 A 19741106 - DASSAULT AVIONS
- [A] GB 822954 A 19591104 - GOMMA ANTIVIBRANTI APPLIC
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)
EP 2434067 A2 20120328; EP 2434067 A3 20140910; IT MI20100293 U1 20120323
DOCDB simple family (application)
EP 11182174 A 20110921; IT MI20100293 U 20100922