(19)
(11) EP 2 570 552 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.07.2015 Bulletin 2015/30

(43) Date of publication A2:
20.03.2013 Bulletin 2013/12

(21) Application number: 12184053.2

(22) Date of filing: 12.09.2012
(51) International Patent Classification (IPC): 
E01F 8/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 13.09.2011 IT PC20110021

(71) Applicants:
  • Parenti, Carolina
    11013 Courmayeur (AO) (IT)
  • Parenti, Nicola
    29121 Piacenza (IT)
  • Maffi, Leonardo
    29121 Piacenza (IT)

(72) Inventors:
  • Parenti, Carolina
    11013 Courmayeur (AO) (IT)
  • Parenti, Nicola
    29121 Piacenza (IT)
  • Maffi, Leonardo
    29121 Piacenza (IT)

(74) Representative: Fisauli, Beatrice A. M. 
Con Lor S.p.A Via Renato Fucini, 5
20133 Milano
20133 Milano (IT)

   


(54) Sound-absorbing element for noise abatement barriers


(57) A sound-absorbing element for noise abatement barriers comprising a sheet (2) with a first portion (3) and a second portion (4) lying one over the other, a plurality of tubular cavities (5) in said second portion (4) being arranged along at least one axis (X) substantially parallel to a plane (G) on which the element lies, at least one side of the sheet perpendicular to said axis (X) being shaped so that between two elements placed side by side along the axis (X) there is a chamber (7) designed to receive a portion of the sound waves coming to bear on the surface, such that said waves are able to spread through said tubular cavities (5).







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Search report