Method and apparatus for making fused silica

US8137469B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Daniel Warren Hawtof · Corning, US
• Michael T Kelley · Horseheads, US
• John Stephen Rosettie · Corning, US
• Andrew Paul Schermerhorn · Corning, US
• Kashyap Shah · Corning, US
• John Stone, III · Corning, US
• Pushkar Tandon · Corning, US

Key dates

• Filing date: Dec 14, 2005
• Grant date: Mar 20, 2012
• Expiry date: Jul 8, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2201/42
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Disclosed are process and apparatus for making high purity fused silica glass materials. The process involves depositing soot particles onto an essentially planar deposition supporting surface and modulation of motion of the soot-generating device relative to the deposition supporting surface to result in a low local soot density variation. The apparatus is designed to implement the planar deposition process. The invention makes it possible to produce fused silica glass without the use of potentially contaminating refractory bricks.