Patent ID: 6178679
Filing Date: 2001-01-30
Classification: G09F

Abstract:
A weather-proof changeable-type readerboard signage system, comprising:a signboard having a substantially planar surface, and being supportable above the Earth's surface at a predetermined viewing height;a pair of separate and distinct upper and lower character holding tracks, each being attached to the substantially planar surface of said signboard by way of one or more fastening components and extending in a parallel manner relative to each other by a predetermined distance,a plurality of character substrates of rectangular geometry, each said character substrate bearing a graphical character and having a height dimension slightly less than said predetermined distance so as to be front loadable into said pair of upper and lower character holding tracks, and releasably retained therewithin so as to form a string of characters displaying a readable message; anda character-protective viewing panel of optically transparent construction, slidably retained within said upper and lower character holding tracks in conjunction with said plurality of character substrates, so that said character-protective viewing panel is physically disposed over said plurality of character substrates and releasably secured to said signboard by one or more fastening elements passed through said character-protective viewing panel and into said signboard so as to prevent unauthorized removal of said character substrates from said upper and lower character holding tracks, while protecting said character substrates against mischief and vandalism, and natural elements presented in outdoor environments.