Optical tube assembly having a dry insert and methods of making the same

US7336873B2 · kind B2 · utility

Assignee

• Corning Cable Systems LLC · US

Inventors

• Jason Clay Lail · Conover, US
• Jody L. Greenwood · Hickory, US
• Douglas S. Hedrick · Connelly Springs, US
• James Lee Baucom · Conover, US
• W. Welch McCollough · Newton, US
• Kenneth D. Temple, Jr. · Newton, US
• Catharina L. Tedder · Catawba, US

Key dates

• Filing date: Sep 12, 2003
• Grant date: Feb 26, 2008
• Expiry date: Sep 12, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4403
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. In one embodiment, the dry insert has a first layer and a second layer. The first layer is a polyurethane foam and the second layer is a water-swellable layer, wherein the dry insert is disposed within the tube and generally surrounds the at least one optical waveguide.