2272996-A cites 7 patents.
A waterproof, resilient cap 5 for a computer key switch 2 comprises a slanted body portion 52 for receiving part of the switch 2 and an integral part cylindrical or part spherical portion 51 having a through hole to enable the portion to tightly contact a post 11 of the switch key 1. The post 11 of the switch key 1 has a cruciform hole receiving an operating post 21 of the switch 2 which is connected to a printed circuit board 3. Two flanges 531, 532 on a base portion 53 of the cap 5 are received in grooves 61, 71 in top and bottom cases 6,7 of the computer. The hole in the caps 5 is supported during assembly of the cap on the key post 11.