Patent ID: 6237266
Filing Date: 2001-05-29
Classification: G08B,G09F,Y10T

Abstract:
A system for indicating an exit path from a building, comprisinga strip of carpeting having a pair of opposed edges extending in an elongation direction and including a backing layer and a plurality of a carpet fibers projecting from said backing layer;a photoluminescent marker extending substantially continuously in said elongation direction on said strip of carpeting, said photoluminescent marker including a photoluminescent surface and a light reflective layer interposed between said photoluminescent surface and said strip of carpeting, said photoluminescent surface including a serging formed on one of said opposed edges from a photoluminescent filament; anda plurality of direction-identifying indicia formed on said strip of carpeting at spaced intervals along said elongation direction, each said indicia including a photoluminescent surface at a first distance from said backing layer, said plurality of carpet fibers surrounding said indicia and defining a carpet surface at a distance from said backing layer greater than said first distance.