Water-proof keyboard

Details Water-proof keyboard Water-proof keyboard

1999-04-01

2000-12-05

Friedhofer, Michael

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200 5A, 2003022, H01H 1370

Patent

active

061569836

ABSTRACT:
A water-proof keyboard, wherein proper grooves are installed on the upper cover of the keyboard, and a plurality of drain holes are installed on the front edge of each groove. The drain holes are penetrated to the bottom of the upper cover and drain tubes are connected therebelow. A plurality of sleeves with respect to the drain tubes are installed on the seat of the keyboard. Within each sleeve is formed with a respective through hole each drain tube inserts into the respective through hole within the sleeve. In the water-proof keyboard of the present invention, the liquid flowing into the keyboard may drain out rapidly so that the liquid flowing into the circuit unit can be prevented effectively. Therefore, the circuit will not short or destroyed.

REFERENCES:
patent: 5117074 (1992-05-01), Yanai et al.
patent: 5810491 (1998-09-01), Muller et al.
patent: 5824981 (1998-10-01), Suzuki

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