Patent ID: 6393896
Filing Date: 2002-05-28
Classification: G01M

Abstract:
A leakage test device for keyboards, comprising:a) a test platform having a base, said base having a test recess formed therein; b) a keyboard overlaying said recess in said base and forming a closure therefor; c) a vacuum pump having a tube coupled in fluid communication with said test recess for evacuation thereof; d) a vacuum display having a tube coupled in fluid communication with said vacuum pump for displaying a vacuum level thereof; e) a vertical driving device coupled to an upper portion of said test platform, said vertical driving device having a reciprocateable actuating rod extending vertically therefrom; and, f) a cover having a cavity formed therein and being connected to said actuating rod to be displaceable therewith, said cover being displaced to overlay said test recess in said base and receive said keyboard in said cavity thereof, said cover having a vent hole formed therethrough in open communication with an ambient atmosphere external to said cover, wherein leakage of said keyboard is detected by leakage of the ambient atmosphere into said recess to thereby diminish a vacuum level therein and an indication thereof being provided by said vacuum display.