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:
Nov. 27, 2007
Filed:
May. 28, 2002
Alessandro Ginocchio, Sesto San Giovanni, IT;
Agusti Valls Prats, Villasanta, IT;
Enrico Consonni, Seregno, IT;
Alessandro Ginocchio, Sesto San Giovanni, IT;
Agusti Valls Prats, Villasanta, IT;
Enrico Consonni, Seregno, IT;
Pirelli & C. S.p.A., Milan, IT;
Abstract
An optical cable having at least one element for the transmission of optical signals and a structure that is able to protect the at least one element. The structure is a multilayer structure and is arranged in a position radially external to the at least one element and has a) at least one first covering layer of polymeric material in a position radially external to the at least one element; b) at least one covering layer of foamed polymeric material in a position radially external to the at least one first covering layer, and c) at least one second covering layer of polymeric material in a position radially external to the at least one covering layer of foamed polymeric material. The foamed polymeric material has a density between 0.3 and 0.7 kg/dmand tensile modulus at 20° C. between 300 and 700 MPa.