Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1967-02-27
1990-08-14
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367162, 367165, 181286, H04R 100
Patent
active
049493175
ABSTRACT:
An improved acoustic baffle for use with underwater hydrophone or acoustic transducer equipment on submarines and the like for attenuating acoustic energy of a noise character emanating from the submarine carrying the hydrophone equipment thereby rendering the hydrophone immune to undesired ambient noise conditions, incorporates a laminated assembly of compliant or spring like elements. One embodiment is characterized by a ribbed member for effecting a spacing of a plurality of rubber tubing type sound absorbing elements. An alternative embodiment incorporates a plurality of metallic springs for controlled compliancy of the baffle. The assembled elements are attached to a steel plate and before being placed in operation, a hydrophone or acoustic transducer is mounted on the opposite side of the steel plate.
REFERENCES:
patent: 2270902 (1942-01-01), Rubissow
patent: 2722194 (1955-11-01), Hoffman
patent: 2811216 (1957-10-01), Harris
patent: 2977919 (1961-04-01), Blake
patent: 3110369 (1963-11-01), Ruzicka
patent: 3117054 (1964-01-01), Antonucci
patent: 3130700 (1964-04-01), Peterson
patent: 3160549 (1964-12-01), Caldwell et al.
B. F. Goodrich Co., Products-Materials for Underwater Sound Applications; l., 1961; pp. 17-21.
Martin Arnat W.
McQuitty Jim B.
Studenick David K.
Eldred J. Woodrow
Jordan Charles T.
The United States of America as represented by the Secretary of
Walden Kenneth E.
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