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. 07, 2010
Filed:
Jan. 29, 2009
Ferdinand Grögl, Nuremberg, DE;
Thomas Mann, Welssenohe, DE;
Ferdinand Grögl, Nuremberg, DE;
Thomas Mann, Welssenohe, DE;
Nexans, Paris, FR;
Abstract
An electrical conductor L is specified, which has a central core () and at least two layers which are arranged above the core () and are composed of electrically conductive individual wires, which are twisted around the core () in a first layer () and around the first layer () in a second layer (). The individual wires of the first layer () are steel wires with an ultimate tensile strength of between 800 N/mmand 2000 N/mm, and the individual wires of the second layer () are copper wires with an ultimate tensile strength of between 250 N/mmand 400 N/mm. A wire composed of a soft-annealed copper with an ultimate tensile strength of at least 210 N/mmis used as the core (). The lay length of the copper wires () is between 8×D and 18×D where D is the diameter of the conductor L over the second layer.