Means for equalizing the internal pressure in an underwater tran

Details Means for equalizing the internal pressure in an underwater tran Means for equalizing the internal pressure in an underwater tran

1988-10-11

1989-09-19

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367175, H04R 1300

Patent

active

048687995

ABSTRACT:
A deep-water low-frequency transducer employs a collapsible air chamber to equalize the internal transducer air pressure with the external hydrostatic pressure at the submerged operating depth. A capsule containing a highly pressurized gas is mounted inside the collapsible air chamber and an automatic valve mechanism releases the gas to inflate the collapsed air chamber at a predetermined depth, beyond which any further reduction in the air volume would impair the operation of the transducer. With the collapsed air chamber restored to its original full volume, the transducer will operate satisfactorily at increased water depths.

REFERENCES:
patent: 3501741 (1970-03-01), Wallen et al.
patent: 3803544 (1974-04-01), Wallen et al.
patent: 4763307 (1988-08-01), Massa

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