Self-driven underwater noisemaking device
US4047592A · kind A · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Sep 20, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/133
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An underwater noisemaking device that is self-driven for use in towed undater acoustic minesweeping or as a decoy countermeasure device. It comprises a cambered and slotted disc mounted in a frame so as to be free to rotate about a horizontal, transverse axis within its plane when being towed or is in a flow stream. The disc auto-rotates rapidly causing intermittent cavitation, resulting in the emission of loud "clapping" acoustic noise. It may be incorporated into other towed underwater acoustic minesweeping and decoy devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.