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. 23, 2014
Filed:
Jul. 15, 2005
Paul Cinquemani, Lexington, SC (US);
Andrew Maunder, Columbia, SC (US);
Paolo Veggetti, Milan, IT;
Alberto Bareggi, Milan, IT;
Sergio Belli, Milan, IT;
Paul Cinquemani, Lexington, SC (US);
Andrew Maunder, Columbia, SC (US);
Paolo Veggetti, Milan, IT;
Alberto Bareggi, Milan, IT;
Sergio Belli, Milan, IT;
Prysmian Cavi E Sistemi Energia S.R.L., Milan, IT;
Abstract
An electric power cable contains a core and a jacket forming the exterior of the cable. The jacket is formed by extruding a first layer and a second layer over a plurality of concentric neutral elements, substantially encapsulating these elements. At least the first layer is an expanded polymeric material, by having its density reduced through the use of a foaming agent during extrusion. The second layer, which may also be expanded, is extruded around the first layer. The expanded polymeric material makes stripping the jacket easier, minimizes indentations in the cable's insulation layers, lightens the cable, and increases the cable's flexibility.