Box-shaped soundproof structure and transportation apparatus
US11654841B2 · kind B2 · utility
1Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Feb 26, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/92
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided is a box-shaped soundproof structure that is small and light and can sufficiently reduce noise with a natural frequency of a sound source. A box at least a part of which is opened; and a sound reduction structure including a resonator disposed in the box are included, and a sound generated from a sound source disposed in contact with an outer surface of a wall of the box or in the box and emitted from an open surface of the box to the outside is reduced by the sound reduction structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.