Multifunctional switch

Details Multifunctional switch Multifunctional switch

2005-07-19

2005-07-19

Donovan, Lincoln (Department: 2832)

Electricity: circuit makers and breakers

Special application

C200S01600R

Reexamination Certificate

active

06919519

ABSTRACT:
The present invention relates to a hearing aid multifunctional switch comprising a base part, an externally activable switch arm, and a first and a second set of contact surfaces disposed at a surface of said base part. The first set of contact surfaces is adjacently positioned so as to form a substantially continuous surface, whereas the second set of electrically isolated contact surfaces is adjacently positioned so as to form a substantially continuous surface. The second set of contact surfaces is oppositely arranged to said first set so that the two sets have pairs of corresponding contact surfaces. A contact member is movable between said pairs of contact surfaces for providing electrical contact between a pair of corresponding contact surfaces. A pressure pad, wherein at least part of said pressure pad is positioned between a resilient member and the contact member, is biased by the resilient member against the contact member so as to ensure continuous contact between the contact surfaces and the contact member.

REFERENCES:
patent: 2831082 (1958-04-01), Mason
patent: 4320271 (1982-03-01), Munroe
patent: 4590344 (1986-05-01), Kikta et al.
patent: 4904833 (1990-02-01), Sato et al.
patent: 5045654 (1991-09-01), Pastwa et al.
patent: 0088296 (1983-09-01), None
patent: 1537956 (1968-08-01), None
patent: 2099346 (1972-03-01), None
patent: 837433 (1960-06-01), None
Search Report Aug. 23, 2002.

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