Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent
1987-05-12
1988-08-16
Fuller, B. R.
Acoustics
Anatomic or prosthetic relation
Ear and mouth
181135, 381 686, 381 69, 381169, 381205, H04R 2500
Patent
active
047637528
ABSTRACT:
A sound transducer, particularly an earphone, is buttoned into a sound opening of an in-the-ear hearing aid housing by means of an elastic hose part seated on a sound connector of the sound transducer. The elastic hose part is slightly pre-stressed in longitudinal direction and the sound transducer is provided with an elastic abutment that elastically compensates the prestress.
REFERENCES:
patent: 3448224 (1969-06-01), Gillen
patent: 3812300 (1974-05-01), Brander et al.
patent: 4069400 (1978-01-01), Johanson et al.
Haertl Christof
Nassler Peter
Fuller B. R.
Siemens Aktiengesellschaft
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