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.
Patent No.:
Date of Patent:
Dec. 05, 2006
Filed:
Sep. 19, 2003
Joseph P. Fletcher, Iii, Marietta, GA (US);
Andrew W. Jones, Dacula, GA (US);
Thomas J. Miller, Alpharetta, GA (US);
Don H. Smith, Decatur, GA (US);
Shunhe Xiong, Alpharetta, GA (US);
Joseph P. Fletcher, III, Marietta, GA (US);
Andrew W. Jones, Dacula, GA (US);
Thomas J. Miller, Alpharetta, GA (US);
Don H. Smith, Decatur, GA (US);
Shunhe Xiong, Alpharetta, GA (US);
Fitel USA Corp, Norcross, GA (US);
Abstract
Embodiments of the invention include an optical fiber preform assembly and a method for making optical fiber using the preform assembly. The assembly includes a preform core rod, at least one overclad tube formed around the preform core rod, a handle attached to one end of the overclad tube, and a refractory material positioned in the overclad tube between the preform core rod and the handle. The refractory material reduces if not prevents movement of the preform core rod into the handle during the fiber draw process. Preferably, the refractory material is made of, e.g., magnesium oxide and/or aluminum oxide, and has a melting point, e.g., greater than approximately 2000 degrees Celsius. Embodiments of the invention also include a method for making optical fiber using this preform assembly.