Airline earphone structure

Details Airline earphone structure Airline earphone structure

1979-04-18

1981-04-14

Griffin, Donald A.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181135, 179 1ST, A61B 702

Patent

active

042614325

ABSTRACT:
An acoustically driven earphone for use with entertainment systems in airplanes which transmits acoustical energy from a transducer to the user's ear. The earphones are formed from two resilient plastic tubes each having one end connected to the transducer with each other end connected to the user's ear canal. A wire frame is provided inside the plastic tubes to maintain a preferred configuration.

REFERENCES:
patent: 999225 (1911-08-01), Hopewell
patent: 2142407 (1939-01-01), Norton et al.
patent: 2487038 (1949-11-01), Baum
patent: 2739660 (1956-03-01), French
patent: 3080011 (1963-03-01), Henderson
patent: 3899044 (1975-08-01), Stumpf et al.

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