Methods and apparatuses for reducing heat loss from edge directors

US9643874B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Ren Hua Chung · Horseheads, US
• Ahdi El-Kahlout · Lexington, US
• David Scott Franzen · Corning, US
• Brendan William Glover · Corning, US
• Paul Richard Grzesik · Corning, US
• Bulent Kocatulum · Horseheads, US
• Gaozhu Peng · Horseheads, US
• Michael J. Stephenson · Oak Ridge, US

Key dates

• Filing date: Jul 6, 2016
• Grant date: May 9, 2017
• Expiry date: Jul 6, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03B17/068
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus and methods for making a glass ribbon includes a forming wedge with a pair of inclined forming surface portions converging along a downstream direction to form a root. The apparatus further includes an edge director intersecting with at least one of the pair of downwardly inclined forming surface portions, and a replaceable heating cartridge configured to direct heat to the edge director and thermally shield the edge director from heat loss. A replaceable heating cartridge is also provided for directing heat to the edge director and thermally shielding the edge director from heat loss.