Patent ID: 6667451
Filing Date: 2003-12-23
Classification: H01H

Abstract:
A push button assembly for use with switch contacts which are movable between an actuated condition and an unactuated condition, said push button assembly comprising a base formed of an electrically insulating material, a printed circuit at least partially enclosed by said base, a plurality of solid state light sources connected with said printed circuit, said solid state light sources being energizable to emit light, a display which is illuminated by light from said solid state light sources when said solid state light sources are energized, a metal housing which partially encloses said display, a plurality of electrical circuit components which are connected with said printed circuit and which emit heat, and a metal heat sink disposed adjacent to said electrical circuit components to conduct heat away from said electrical circuit components, said metal heat sink being disposed in engagement with said metal housing to enable heat to be conducted from said metal heat sink to said metal housing.