Self-driven underwater noisemaking device

Details Self-driven underwater noisemaking device Self-driven underwater noisemaking device

1976-09-20

1977-09-13

Farley, Richard A.

Acoustics

Wave generation

114244, 116 27, 181120, 340 3T, G10K 1000, B63G 708

Patent

active

040475921

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.

REFERENCES:
patent: 3319735 (1967-05-01), Hayes et al.
patent: 3495022 (1970-02-01), Koehl
patent: 3906884 (1975-09-01), Gould

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