Illuminated push-button electrical switch

Claim 1

An illuminated assembly for indicating the operation status of a push button switch, comprising: a casing having an operation member mounted slidably therein, said operation member having an arm portion adapted to engage an operation rod of a push-button switch for movement therewith; an indicating plate mounted to an exterior end portion of said operation member, said indicating plate having two sets of graphic symbols each adapted to transmit light and corresponding to a respective status of said switch, said sets of graphic symbols each being formed of different but complementary colors; a light source held to said casing for illuminating said indicating plate; two filter members carried by said casing and being formed respectively of said complementary colors; and means for positioning said filter members selectively within the light path to said indicating plate during operation of said switch, said filter members being mounted generally orthogonally to one another, said positioning means including tongue elements extending upwardly from said operation member and between said filter members.