Hearing aid with a volume wheel

Details Hearing aid with a volume wheel Hearing aid with a volume wheel

2005-11-08

2010-02-23

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

C381S312000, C381S322000

Reexamination Certificate

active

07668327

ABSTRACT:
A hearing aid (1), fitted with an aperture (4) in a wall of a case (2, 3) receiving an adjustment wheel (5) which can be rotated from the outside by finger action around an axis of rotation (6) configured parallel to the wall (2), the adjustment wheel (5) driving a continuously adjustable electric volume control (7, 8), is characterized in that the adjustment wheel (5) rests in such manner at a shifting element (10) mounted in the case (2, 3) that a switch (13) shall be actuated when said wheel (5) is driven against a spring force (14) in the direction of shifting (17, 18, 19, 20).

REFERENCES:
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patent: 4922540 (1990-05-01), Erbe
patent: 6700983 (2004-03-01), Bøgeskov-Jensen et al.
patent: 6809275 (2004-10-01), Cheng et al.
patent: 7079110 (2006-07-01), Ledbetter et al.
patent: 2003/0025673 (2003-02-01), Ledbetter et al.
patent: 3503390 (1985-08-01), None
patent: 8708894 (1988-12-01), None
patent: 3850322 (1989-03-01), None
patent: 0724278 (1996-07-01), None
patent: 0901262 (1999-03-01), None
patent: 1150243 (2001-10-01), None
patent: 1455370 (2004-03-01), None
WO 99/43193, Behind-the-Ear Hearing Aid, Publication Date: Sep. 2, 1999.

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