EP 0690183 A3 19970423 - Acoustic ceiling
Title (en)
Acoustic ceiling
Title (de)
Akustikdecke
Title (fr)
Plafond acoustique
Publication
Application
Priority
DE 9410565 U 19940630
Abstract (en)
[origin: EP0690183A2] The edges (13) of the plates (1) contain lengthwise grooves (12), and they of flexible elastic material at least at the grooves. The frame comprises profiled bars (2,2',2"), each pair accommodating a plate between them and whose groove edges fit part-way round them, so as to lock the plate in place. The bars can be formed by hollow drum profiled sections, or of bent sheet-metal strip, typically of circular or triangular cross-section. <IMAGE>
IPC 1-7
IPC 8 full level
E04B 9/00 (2006.01); E04B 9/04 (2006.01); E04B 9/06 (2006.01); E04B 9/28 (2006.01)
CPC (source: EP)
E04B 9/001 (2013.01); E04B 9/0435 (2013.01); E04B 9/0464 (2013.01); E04B 9/064 (2013.01); E04B 9/065 (2013.01); E04B 9/28 (2013.01)
Citation (search report)
- [XA] EP 0452558 A1 19911023 - TURBON TUNZINI KLIMATECHNIK [DE]
- [A] FR 1309072 A 19621109
- [A] DE 2621901 A1 19771201 - MACK & MACK INGBUERO
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
DE 9410565 U1 19941117; EP 0690183 A2 19960103; EP 0690183 A3 19970423
DOCDB simple family (application)
DE 9410565 U 19940630; EP 95107448 A 19950517