Audio transducer improvements

Details Audio transducer improvements Audio transducer improvements

1991-05-31

1993-09-28

Ng, Jin F.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381194, 381199, H04R 2500

Patent

active

052492370

ABSTRACT:
An audio transducer having a pair of magnets supported to provide a magnet gap within which a flexible diaphragm supporting an electrical coil is received. The diaphragm is formed of a pair of flexible cylindrical webs joined at their centers to support the coil within the magnet gap. The diaphragm is provided with a row of perforations on either side of the gap to provide flexibility and is aligned centrally within the gap by tab portions partially cut from the diaphragm and folded to be adhered to the magnets.

REFERENCES:
patent: 3686446 (1972-08-01), Manger
patent: 3978353 (1976-08-01), Kinoshita
patent: 4327257 (1982-04-01), Schwartz
patent: 4472605 (1984-09-01), Klein
patent: 4584439 (1986-04-01), Paddock
patent: 4590333 (1986-05-01), Strohbeen
patent: 4897877 (1990-01-01), Tetzlaff
patent: 4903308 (1990-02-01), Paddock et al.

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