EP 1624122 A3 20061115 - Sound absorbing element, fabrication method therefor and cellulose conveyor device
Title (en)
Sound absorbing element, fabrication method therefor and cellulose conveyor device
Title (de)
Schallabsorbierendes Element, Verfahren zu seiner Herstellung und Zellulose-Fördervorrichtung
Title (fr)
Élément d'absorbtion acoustique, méthode pour sa fabrication et dispositif de convoyage de cellulose
Publication
Application
Priority
AT 13402004 A 20040804
Abstract (en)
[origin: EP1624122A2] The panel includes a structure comprising a lower layer (2) mainly formed from cellulose, and an upper layer (3) whose surface is connected to that of the lower layer. The upper layer has a higher specific weight than the lower layer. The upper layer is preferably a mineral plaster layer. An independent claim is included for a method of manufacturing a sound absorbing panel.
IPC 8 full level
E04B 1/82 (2006.01); E04B 9/00 (2006.01); E04F 21/12 (2006.01)
CPC (source: EP)
E04B 1/82 (2013.01); E04F 21/12 (2013.01); E04B 2001/8272 (2013.01)
Citation (search report)
- [XA] FR 2841580 A1 20040102 - ONDULINE SA [FR]
- [XA] DE 29517568 U1 19960111 - UNGER BERND [DE]
- [X] DE 9421273 U1 19950803 - LUTZE STEPHAN [DE], et al
- [X] US 2094839 A 19371005 - MCCAUGHEY GEORGE J, et al
- [X] US 3858806 A 19750107 - MILLER RAY J, et al
- [X] DE 19601335 A1 19970717 - PELTZER WOLFGANG [DE], et al
- [A] US 6109488 A 20000829 - HORTON PAUL H [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1624122 A2 20060208; EP 1624122 A3 20061115; EP 1624122 B1 20111012; EP 1624122 B2 20160420; AT 502046 A4 20070115; AT 502046 B1 20070115; AT E528451 T1 20111015
DOCDB simple family (application)
EP 05450133 A 20050803; AT 05450133 T 20050803; AT 13402004 A 20040804