Acoustics – Sound-modifying means – Sound absorbing fence or screen
Reexamination Certificate
2007-12-18
2007-12-18
San Martin, Edgardo (Department: 2837)
Acoustics
Sound-modifying means
Sound absorbing fence or screen
C181S293000, C181S286000
Reexamination Certificate
active
10508119
ABSTRACT:
A noise-absorbing device includes a substantially flat base and embossed and/or hollow elements each including at least one recess. This base reveals with the embossed and/or hollow elements, a configuration exhibiting a fractality zone of between 1 cm and 50 cm, of fractal dimension greater than 2.5 enabling the localization of the waves over the sound frequency range, in the vicinity of the elements.
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Chappat Michel
Filoche Marcel
Peyrard Didier
Sapoval Bernard
Colas
Ecole Polytechnique
Martin Edgardo San
Young & Thompson
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