Sandwich switch construction for a hearing aid

Details Sandwich switch construction for a hearing aid Sandwich switch construction for a hearing aid

1994-07-11

1995-10-31

Kuntz, Curtis

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 687, 200 52R, 200 11R, H04R 2500, H01H 1958, H01H 3500

Patent

active

054636922

ABSTRACT:
A sandwich switch construction for a hearing aid includes a lower housing having a base surface with a first electrical lead formed thereon, and an elastomeric membrane with a second electrical lead formed thereon in alignment with the first electrical lead, a portion of the elastomeric membrane being spaced apart from the base surface such that the first electrical lead is not in communication with the second electrical lead; and an upper housing operable with the lower housing, the upper housing having contact mechanism for deforming the elastomeric membrane toward the base surface such that the first electrical lead is in electrical communication with the second electrical lead.

REFERENCES:
patent: 3221111 (1965-11-01), Groot et al.
patent: 3629780 (1971-12-01), Burcham
patent: 4405841 (1983-09-01), Van Zeeland
patent: 4539440 (1985-09-01), Sciarra
patent: 4634815 (1987-01-01), Marquis
patent: 4710961 (1987-12-01), Buttner
patent: 4918264 (1990-04-01), Yamamoto et al.
patent: 4922540 (1990-05-01), Erbe
Operating Principle regarding Dyna-Graphics Membrane Switch--Jun. 1992.

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