Corning Incorporated
METHOD AND APPARATUSES FOR FORMING GLASS RIBBONS

Abstract:

According to one embodiment, an apparatus for forming a glass ribbon may include a forming wedge disposed in a housing and including a pair of downwardly inclined forming surface portions converging at a root. A plurality of heating cartridges may be positioned in ports of the housing. Each heating cartridge may include a heat directing surface that is oriented at an angle of greater than about 90.degree. with respect to a bottom surface of the heating cartridge. The heat directing surface may include at least one heating element positioned adjacent to the heat directing surface. The heating cartridge may be positioned such that the heat directing surface faces the forming wedge and an upper edge of the heat directing surface is positioned above the root to direct heat from the heat directing surface towards the root of the forming wedge.