Acoustic metamaterial for isolation and method for the production thereof
US10978037B2 · kind B2 · utility
1Cited by
8References
14Claims
0Family size
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Key dates
| Filing date | Apr 29, 2016 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Dec 30, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A porous acoustic bead resonator is provided, wherein the Young's modulus of the material of the resonator is lower than 1 GPa and the porosity of the resonator is comprised between 20% and 50%, most of the pores of the resonator being filled with a gas and most of the pores being interconnected, via at least one pore, with the exterior of the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.