Environmentally sealed acoustic transducer coupling

Details Environmentally sealed acoustic transducer coupling Environmentally sealed acoustic transducer coupling

1996-05-24

1998-03-17

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367188, 310327, H04R 128

Patent

active

057295085

ABSTRACT:
An environmentally sealed acoustic transducer that utilizes a semi-liquid, liquid or paste-like couplant material between a bottom surface of a transducer case and a structure that is to be acoustically vibrated. The transducer case fits into a chamber or well that provides a seal relative to the outer surfaces of the transducer case, and a weep or bleed passageway is provided and opens to the chamber or well. The bleed passageway permits excess couplant material to move out of the chamber through the passageway when the transducer case is inserted into the chamber or well. The bleed passageway has a seal so that the entire unit is environmentally sealed.

REFERENCES:
patent: 2956789 (1960-10-01), Rich
patent: 4184094 (1980-01-01), Kopel
patent: 4297607 (1981-10-01), Lynnworth et al.
patent: 4796632 (1989-01-01), Boyd et al.
patent: 5494038 (1996-02-01), Wang et al.
patent: 5598845 (1997-02-01), Chandraratna et al.
"Ultrasonic Testing of Materials", 4th Revised Editon 1990, by J. Krautkramer and H. Krautkramer, Title page, page listing collaborators, Table of Contents (8 pp.), and pp. 187-202.

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