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:
Jun. 10, 2008
Filed:
Aug. 28, 2003
Applicants:
Eric Lainet, Maisons Laffitte, FR;
Kamel Dougdag, Andresy, FR;
Jean-françois Bourhis, Taverny, FR;
Inventors:
Assignee:
Draka Comteq B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An anti-PMD system comprises a pulley which oscillates in rotation and applies a torsion torque alternately in the clockwise direction and in the counterclockwise direction to an optical fiber during drawing of the optical fiber to reduce its PMD. A portion of a peripheral external surface of the pulley intended to be in contact with the optical fiber during drawing is convex.