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:
Apr. 03, 2012
Filed:
Mar. 29, 2005
Luis Sales Casals, Vilanova I la Geltru, ES;
Flavio Sangalli, Milan, IT;
Francesco Della Corte, Milan, IT;
Alessandro Ginocchio, Milan, IT;
Luis Sales Casals, Vilanova I la Geltru, ES;
Flavio Sangalli, Milan, IT;
Francesco Della Corte, Milan, IT;
Alessandro Ginocchio, Milan, IT;
Prysmian Cavi e Sistemi Energia S.r.l., Milan, IT;
Abstract
A method and apparatus for manufacturing an optical cable comprising at least one metal tube housing at least one optical fiber and having a predetermined excess fiber length (EFL) is described. In this method the metal tube is plastically deformed and shortened by a predetermined amount (S) greater than the predetermined EFL and is plastically deformed after shortening to provide a controlled elongation thereof so as to reach the predetermined excess fiber length. An optical cable so manufactured has a local excess fiber length (EFL) varying of or less than 0.2 % along the longitudinal extension of the cable with respect to an average EFL of the cable.