Global Patent Index - EP 1317584 A1

EP 1317584 A1 2003-06-11 - ACOUSTIC CONSTRUCTION ELEMENT FOR SOUND INSULATION IN A BROAD RANGE OF FREQUENCIES

Title (en)

ACOUSTIC CONSTRUCTION ELEMENT FOR SOUND INSULATION IN A BROAD RANGE OF FREQUENCIES

Title (de)

SCHALLDÄMBAUELEMENT FÜR SCHALLDÄMPFUNG IN EINEM WEITEN FREQUENZGEBIET

Title (fr)

ELEMENT DE CONSTRUCTION ACOUSTIQUE POUR ISOLATION ACOUSTIQUE DANS UNE LARGE GAMME DE FREQUENCES

Publication

EP 1317584 A1 (EN)

Application

EP 00962489 A

Priority

EP 0008988 W

Abstract (en)

[origin: WO0222961A1] The invention relates to an acoustic construction element comprising sound insulating cavities of which at least part have a first portion (4), which is situated closest to the external surface (3) of the element and at least a second portion (5) having a maximum internal width (6) which is larger than the smallest width of said first portion (4) of the cavity. At least some of said cavities have different internal volume, of which preferably the portion of the cavities beyond the first portion have a circular or oval shape. Said construction element further comprises preferably cavities (e, f, h) having a substantially constant width over their entire depth. The invention further relates to the use and the method of manufacturing said construction elements.

IPC 1-7 (main, further and additional classification)

E01F 8/00

IPC 8 full level (invention and additional information)

E01F 8/00 (2006.01)

CPC (invention and additional information)

E01F 8/0076 (2013.01)

Citation (search report)

See references of WO 0222961A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0222961 A1 20020321; AU 7419600 A 20020326; EP 1317584 A1 20030611

INPADOC legal status


2006-09-20 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060401

2003-09-10 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: WIENERBERGER BRICKS N.V.

2003-06-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030327

2003-06-11 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2003-06-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI