Communications – electrical: acoustic wave systems and devices – Transponders – Sonobuoys and sonobuoy systems
Patent
1990-12-20
1992-03-17
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Transponders
Sonobuoys and sonobuoy systems
367 12, H04B 1700
Patent
active
050974513
ABSTRACT:
A motion dampening device is described that is efficiently and conveniently ackaged with sonobuoy components to reduce the effects of vertical motion caused by surface waves or internal buoyant forces. A plurality of spring steel spokes connected by sections of thin plastic sheet are fitted around a central core around a first-deployed element. As this element is packed, prior to deployment, the spokes and plastic sheet are wrapped around the core. Upon deployment, the stored spring forces push open to their extended positions and spread the plastic sheet, thereby impeding vertical motion of the element and reducing effects of flow noise on a sensor hanging therefrom.
REFERENCES:
patent: 3851348 (1974-12-01), Gilbert et al.
patent: 4096598 (1978-06-01), Mason
patent: 4189703 (1980-02-01), Bennett
patent: 4853900 (1989-08-01), Snyderwine
Mahadevan Saroja
Snyderwine Martha E.
Bechtel James B.
Pihulic Daniel T.
The United States of America as represented by the Secretary of
Tura James V.
Verona Susan E.
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