Apparatus for srewing a cover onto a screw neck of a hearing aid

Details Apparatus for srewing a cover onto a screw neck of a hearing aid Apparatus for srewing a cover onto a screw neck of a hearing aid

1987-05-01

1989-06-20

Fuller, B. R.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181130, 181135, 381 686, 811761, H04R 2502

Patent

active

048402494

ABSTRACT:
A rotary shaft is provided with at least two pins at its one end, these two pins fitting into two holes of the cover. The other end of the rotary shaft carries a polygonal screw pin for screwing on the adaptor.

REFERENCES:
patent: 3140625 (1964-02-01), Pannozzo
patent: 3157245 (1964-11-01), Bernstein
patent: 3170046 (1965-02-01), Leale
patent: 4164967 (1979-08-01), Breuers
patent: 4686874 (1987-08-01), McCauley et al.

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