Earphone cord take-up device

Details Earphone cord take-up device Earphone cord take-up device

1988-12-22

1990-07-17

Ng, Jin F.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

381187, 381188, 381205, 439 17, 455 89, 455 90, H04M 105, H04R 102, H04R 106, H04R 110

Patent

active

049426176

ABSTRACT:
An earphone cord take-up device is provided and consists of a hollow casing worn on a belt in which an earphone cord that is electrically connected within the casing to a jack cord can be extended therefrom when needed. Within the casing are stop rests for the earphones when the earphones are in the retracted positon.

REFERENCES:
patent: 2470687 (1949-05-01), Cafrella et al.
patent: 3426282 (1969-02-01), Brady
patent: 3798389 (1974-03-01), Tokizaki
patent: 3851123 (1974-11-01), Lipinski et al.
patent: 3984645 (1976-10-01), Kresch
patent: 4691383 (1987-09-01), DeMars
patent: 4765481 (1988-08-01), Walsh et al.
patent: 4775083 (1988-10-01), Burger et al.

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