In-the-ear hearing aid

Details In-the-ear hearing aid In-the-ear hearing aid

1995-05-22

1996-07-09

Kuntz, Curtis

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 69, H04R 2500

Patent

active

055352820

ABSTRACT:
An in-the-ear hearing aid is formed by an ogival body (1) which is meant to be removably inserted into the acoustic meatus of the external ear, and inside the ogival body (1) there being accommodated a microphone (2) communicating (3) with the external environment; an amplifier (4) being connected to the microphone (2); an electro-acoustic transducer (5), also called a receiver, connected to the output of the amplifier (4) and communicating with the duct (401, 501) having one opening at the internal end of the ogival body (1); and a housing for one or more piles or batteries for the hearing aid electric power. The electro-acoustic transducer (5) communicates with a branched duct (501) branched off a longitudinal through duct (401) with its one end debouching at the external end of the ogival body (1) and with its other end debouching at the internal end thereof, which ducts are so provided that any cerumen and any further possibly occurring liquid secretions of the ear are not allowed to get into the branched duct (501) or reach the electro-acoustic transducer (5).

REFERENCES:
patent: 3470328 (1969-09-01), Daniels
patent: 4800982 (1989-01-01), Carlson

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