Switching construction for a handy electronic device

Details Switching construction for a handy electronic device Switching construction for a handy electronic device

1976-02-11

1978-02-07

Smith, Jr.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

58 55, 58 90R, 200159B, G04C 300

Patent

active

040720047

ABSTRACT:
An electronic timepiece comprises a digital display device and electronic circuitry including a printed circuit board containing thereon a pattern of printed conductors connected to drive the digital display device. A cover member is disposed atop the timepiece casing and on a side portion of the cover member are mounted a plurality of depressable key switches, the key switches being mounted at a location overlying and spaced from the pattern of printed conductors. An electro-conductive rubber sheetlike member coacts with the cover member for both sealing in a water proof manner the region between the cover member and the timepiece casing and effecting electrical connection between individual ones of the key switches and the pattern of printed conductors in response to depression or actuation of the key switches.

REFERENCES:
patent: 2862382 (1975-01-01), Glaister et al.
patent: 3803834 (1974-04-01), Reese
patent: 3860771 (1975-01-01), Lynn et al.

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