Vibration device
US11434891B2 · kind B2 · utility
3Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Jan 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R17/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vibration device includes a top plate elastic body, a cylindrical body that includes a first end portion and a second end portion and is coupled with the top plate elastic body to retain the top plate elastic body on a side of the first end portion. The cylindrical body includes on a side of the second end portion, a ring-shaped flange portion extended outward in a radial direction of the cylindrical body, and a piezoelectric element fixed to the ring-shaped flange portion to cause the cylindrical body to vibrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.