The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 08, 2005

Filed:

Sep. 21, 2001
Applicants:

Jean-philippe J. DE Sandro, Beaconsfield, CA;

Keith L. House, Corning, NY (US);

Joohyun Koh, Horseheads, NY (US);

Prantik Mazumder, Corning, NY (US);

Inventors:

Jean-Philippe J. de Sandro, Beaconsfield, CA;

Keith L. House, Corning, NY (US);

Joohyun Koh, Horseheads, NY (US);

Prantik Mazumder, Corning, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C03C013/00 ;
U.S. Cl.
CPC ...
Abstract

A method and apparatus for forming a glass article such as an optical fiber having a substantially matching viscosity across an interface associated with a first section and a second section of the optical fiber is disclosed herein. The first section has a first halogen concentration and the second section has a second halogen concentration. At least one of a partial pressure of the second halogen provided to a substrate tube and a temperature of the substrate tube is configured to affect the concentration of the second halogen in the second section. Optical fiber embodiments are also included.


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