Method and device for acoustic sealing
US8208652B2 · kind B2 · utility
45Cited by
18References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2009 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Sep 30, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/145
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Acoustic reflective devices are provided. An acoustic reflective device is configured to be inserted into an orifice. The device includes a stressing device that can vary a volume in response to a voltage difference across a portion of the stressing device. The stressing device is at least partially surrounded by a membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.