Hearing aid

Details Hearing aid Hearing aid

1985-12-04

1988-04-05

Ng, Jin F.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 692, H04R 2502, H04R 2500

Patent

active

047364300

ABSTRACT:
To provide for better fitting and pleasing out appearance of a hearing aid having an element introducible into the ear canal of a user, and an externally accessible housing which retains electronic components, a battery, and ON/OFF switch and volume control elements, the housing is formed in spherical or, rather, truncated-spherical shape, removably fitted on a fitting element introduced into the ear canal. This spherical shape is less obtrusive than others, and may be formed similar to costume jewelry.

REFERENCES:
patent: D102655 (1937-01-01), Nicholides
patent: D105261 (1937-07-01), Breen
patent: 2064426 (1936-12-01), Greibach
patent: 2477046 (1949-07-01), Davenport
patent: 2486534 (1949-11-01), Medlin
patent: 2506490 (1950-05-01), Coley
patent: 2595672 (1952-05-01), Greenwood
patent: 2808468 (1957-10-01), Knauert
patent: 2964596 (1960-12-01), Christensen
patent: 3394698 (1968-07-01), Calkins
patent: 3745049 (1973-07-01), Kaye
patent: 3783201 (1974-01-01), Weiss et al.
patent: 4550227 (1985-10-01), Topholm
patent: 4585089 (1986-04-01), Topholm
patent: 4672672 (1987-06-01), Eggert et al.

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