Electro-acoustic transducer with active dome

Details Electro-acoustic transducer with active dome Electro-acoustic transducer with active dome

1981-01-05

1984-04-03

Fuller, Benjamin R.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

179179, 181151, 181170, 310322, 310324, 310326, 310366, 310800, H04R 1500

Patent

active

044409834

ABSTRACT:
The invention relates to an electro-acoustic transducer using a self-supporting active radiating membrane made from a polymer material. The invention provides a transducer in which a resilient shape restoring member fixed to the case capped by the radiating membrane takes on the shape of the concave parts of the membrane, so as to oppose the definitive staving-in of the membrane by an accidental thrust force acting on the dome shaped protuberance on its outer face and restore the member to its initial shape when the force is removed.

REFERENCES:
patent: 3424873 (1969-01-01), Walsh
patent: 3496307 (1970-02-01), Sotome
patent: 4045695 (1977-08-01), Itagaki et al.
patent: 4284921 (1981-08-01), Lemonon et al.

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