Soundproofing panel made of FRP (Fiber-Reinforced Polymer) composite with a sound-absorbing surface characterized by parallel longitudinal strips

(19)

(11)

EP 1 362 963 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	11.02.2004 Bulletin 2004/07

(43)	Date of publication A2:
	19.11.2003 Bulletin 2003/47

(21)	Application number: 03009375.1

(22)	Date of filing: 25.04.2003

(51)	International Patent Classification (IPC)⁷: E04B 1/86, G10K 11/172

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

(30)

Priority:

26.04.2002 IT PD20020105

(71)	Applicant: Zenone Soave & Figli S.p.A.
	36100 Vicenza (IT)

(72)	Inventors:
	Fracasso, Giuseppe 36100 Vicenza (IT) Bedogni, Giorgio 36100 Vicenza (IT) Casciana, Giuseppe 36100 Vicenza (IT)

(74)	Representative: Gustorf, Gerhard, Dipl.-Ing.
	Patentanwalt, Bachstrasse 6 A 84036 Landshut 84036 Landshut (DE)

(54)	Soundproofing panel made of FRP (Fiber-Reinforced Polymer) composite with a sound-absorbing surface characterized by parallel longitudinal strips

(57) The invention is a new soundproofing panel made of composite material, suitable for installation along railways and/or roads, comprising a box structure whose side facing the source of the noise is covered with suitably-spaced staves. The new soundproofing panel comprises an FRP box structure (S1, S2), a layer of sound-absorbing material (F), spacers (D), and parallel staves with an arched T-shaped cross-section; these staves (T) are preferably arranged alternately, i.e. so that each stave (T) has its cross-section inverted with respect to the two staves (T) on either side.

Search report