Douglas Brady Hedrick

US Patent:

6813421, Nov 2, 2004

Filed:

Dec 26, 2001

Appl. No.:

10/036027

Inventors:

Jason C. Lail - Conover NC
Jody L. Greenwood - Hickory NC
Patrick K. Strong - Connelly Springs NC
Roger K. Peterson - Conover NC
Bradley J. Blazer - Granite Falls NC
William E. Caldwell - Hickory NC
Richard S. Wagman - Hickory NC
Douglas S. Hedrick - Connelly Springs NC

Assignee:

Corning Cable Systems LLC - Hickory NC

International Classification:

G02B 644

US Classification:

385101, 385102, 385104, 385109, 385111

Abstract:

A fiber optic cable including a cable core having at least one optical fiber and a ripcord. In one embodiment, the ripcord is a conductive material operative, upon application of a sufficient pulling force, to rip at least one cable component for facilitating access to said at least one optical fiber. In other embodiments, the ripcord is formed from a semi-conductive material, the ripcord is removably attached to at least one cable component, and/or the ripcord has an excess length.

US Patent:

7336873, Feb 26, 2008

Filed:

Sep 12, 2003

Appl. No.:

10/661204

Inventors:

Jason C. Lail - Conover NC, US
Jody L. Greenwood - Hickory NC, US
Douglas S. Hedrick - Connelly Springs NC, US
James L. Baucom - Conover NC, US
Catharina L. Tedder - Catawba NC, US

Assignee:

Corning Cable Systems, LLC. - Hickory NC

International Classification:

G02B 6/44

US Classification:

385100, 385102

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.