Button waterproofing structure

Details Button waterproofing structure Button waterproofing structure

2007-06-12

2007-06-12

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

C200S302200, C200S302300, C200S310000

Reexamination Certificate

active

11396610

ABSTRACT:
Button holes3are formed in a front panel2. Buttons4are arranged in the button holes3, and a rib7convexly provided on the back surface of the front panel2surrounds the button holes3. A light transmitting rubber sheet11closes a space30surrounded by the rib7and is held between a circuit board15and the rib7. Contact portions12are provided on the rubber sheet11so as to be brought into contact with and separated from the circuit board15by the elastic force of the rubber sheet11. Light emitting elements17are mounted on the circuit board15so as to correspond to the buttons4, and are accommodated in accommodation concave portions18in the rubber sheet11.

REFERENCES:
patent: 5172805 (1992-12-01), Gumb
patent: 5496977 (1996-03-01), Date et al.
patent: 5704467 (1998-01-01), Jarvis
patent: 5734136 (1998-03-01), Newcomer et al.
patent: 6437267 (2002-08-01), Imai
patent: 6443644 (2002-09-01), Takeda et al.
patent: 6743993 (2004-06-01), Clark et al.
patent: 6770212 (2004-08-01), Hayashizaki
patent: 6868259 (2005-03-01), Kitamura et al.

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