Noise abatement wall
First Claim
Patent Images
1. A sound-absorbing device, notably for roads and railways including:
- a substantially flat base with two opposing sides, andembossed elements on an upper side of the base, each embossed element including at least one recess, said embossed elements being made of a phonically absorbing material,wherein the recess does not communicate with the side of the base opposite to the upper side and said base forms with the embossed elements a configuration exhibiting a fractality over a length range comprised between 1 cm and 50 cm, with a fractal dimension greater than 2.5 enabling the localisation of acoustic modes, in the vicinity of said embossed elements.
1 Assignment
0 Petitions
Accused Products
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.
50 Citations
22 Claims
-
1. A sound-absorbing device, notably for roads and railways including:
-
a substantially flat base with two opposing sides, and embossed elements on an upper side of the base, each embossed element including at least one recess, said embossed elements being made of a phonically absorbing material, wherein the recess does not communicate with the side of the base opposite to the upper side and said base forms with the embossed elements a configuration exhibiting a fractality over a length range comprised between 1 cm and 50 cm, with a fractal dimension greater than 2.5 enabling the localisation of acoustic modes, in the vicinity of said embossed elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A sound-absorbing device, comprising:
-
a substantially flat base with two opposing sides; and a plurality of discrete embossed elements on an upper side of the base, each embossed element including at least one recess, wherein the recess does not communicate with a side of the base opposite to the upper side and said base forms with the embossed elements a configuration exhibiting a fractality over a length range comprised between 1 cm and 50 cm, with a fractal dimension greater than 2.5 enabling the localisation of acoustic modes, in the vicinity of said embossed elements.
-
Specification