Pushbutton switch

Details Pushbutton switch Pushbutton switch

1995-12-05

1997-08-26

Walczak, David J.

Electricity: circuit makers and breakers

Electric switch details

Indicators

200305, 200512, H01H 900

Patent

active

056612796

ABSTRACT:
A pushbutton switch which is based on a printed-wiring board equipped with a light source and a keypad that is arranged above the printed-wiring board. The pushbutton switch has a non-working portion and a working portion made of transparent silicone rubber or a transparent thermoplastic elastomer, wherein the upper surfaces of the non-working portions, excluding the working portions of the keypad, are covered with an opaque film, with the underside thereof being covered by an insulating film which forms an electrically conductive light-reflecting layer in which the electrically conductive light reflective layer is grounded by being connected to an earth portion.

REFERENCES:
patent: 4336529 (1982-06-01), Buan
patent: 4771139 (1988-09-01), DeSmet
patent: 5513078 (1996-04-01), Komrska et al.

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