Tapered tube impedance matching underwater voice communicator with bubble silencer
US4527657A · kind A · utility
16Cited by
8References
17Claims
0Family size
Inventor
Key dates
| Filing date | Jul 31, 1984 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Jul 31, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/91
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An underwater voice communicator in which the preferred embodiment comprises a pair of tapered tubes in communication with a diver's mouth. The tubes are constructed of a material having a sound impedance similar to the sound impedance of water. Sound energy issuing from the mouth of a diver is reflected down the length of the tapered tubes to an area of the tube that concentrates the sound for injection into the surrounding water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.