EP 0798426 A1 19971001 - Acoustic wave phase varying apparatus and sound insulating wall
Title (en)
Acoustic wave phase varying apparatus and sound insulating wall
Title (de)
Akustischer Wellen-Phasenschieber und Lärmschutzwand
Title (fr)
Dispositif de déphasage d'ondes et mur anti-bruit
Publication
Application
Priority
JP 7444296 A 19960328
Abstract (en)
An element is provided for varying the phase of acoustic waves for use in a sound insulating wall. The element comprises a porous member (15) supported around a sound insulating plate assembly (14). The plate assembly (14) comprises a plurality of sound insulating plates (12, 13) which form a plurality of independent spaces (16) therebetween. The sound insulating wall comprises a sound insulating panel (11) provided to stand in the vicinity of a sound source. The phase changing element is mounted along an upper end portion of the sound insulating panel (11). <IMAGE>
IPC 1-7
IPC 8 full level
E01F 8/00 (2006.01); E04B 1/82 (2006.01); E04B 1/84 (2006.01); G10K 11/16 (2006.01); G10K 11/178 (2006.01)
CPC (source: EP KR)
E01F 8/0029 (2013.01 - EP); E01F 8/0041 (2013.01 - EP); E01F 8/0076 (2013.01 - EP); E01F 8/0094 (2013.01 - EP); E04B 1/8227 (2013.01 - EP); E04B 1/84 (2013.01 - EP); G10K 11/00 (2013.01 - KR)
Citation (applicant)
- JP S5146969 B2 19761211
- JP S5291514 A 19770802 - FUJIWARA KIYOUJI
Citation (search report)
- [XA] GB 2269842 A 19940223 - UNIV SOUTHAMPTON [GB]
- [A] DE 9311323 U1 19931028 - NITTO BOSEKI CO LTD [JP]
- [PX] DE 19509678 C1 19960530 - MOESER MICHAEL PROF DR ING [DE]
- [DA] EP 0578272 A1 19940112 - MITSUBISHI ELECTRIC CORP [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0798426 A1 19971001; EP 0798426 B1 20000419; CN 1125219 C 20031022; CN 1160810 A 19971001; DE 69607826 D1 20000525; DE 69607826 T2 20001221; JP 2859578 B2 19990217; JP H09265291 A 19971007; KR 100240212 B1 20000115; KR 970065965 A 19971013; MY 124453 A 20060630; SG 47192 A1 19980320; TW 305006 B 19970511
DOCDB simple family (application)
EP 96117510 A 19961031; CN 96122863 A 19961018; DE 69607826 T 19961031; JP 7444296 A 19960328; KR 19960064277 A 19961211; MY PI19964220 A 19961011; SG 1996011071 A 19961108; TW 85111746 A 19960925