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:
Jul. 06, 2010
Filed:
Jul. 31, 2008
Jean-pierre Ferlier, Yerres, FR;
Pascal Clouet, Vigneux sur Seine, FR;
Rui Manuel Da Silva, Chilly-Mazarin, FR;
Jean-Pierre Ferlier, Yerres, FR;
Pascal Clouet, Vigneux sur Seine, FR;
Rui Manuel Da Silva, Chilly-Mazarin, FR;
Nexans, Paris, FR;
Abstract
An electric cable includes an electrical conductor surrounded by a first layer of mica tape made up of mica particles deposited by means of a polymer binder on a backing, a second layer of a polyimide tape, and a third layer of a polytetrafluoroethylene tape, where the first layer is subjected to heat treatment at a temperature of at least 400° C. and the ratio R of the weight per unit length of PTFE over the sum of the weights per unit length of the polymer binder and of the polyimide is such that R is greater than or equal to 2 when the section of the electrical conductor is no greater than 0.2 mm, R is greater than or equal to 4 when the section of the electrical conductor is strictly greater than 0.2 mmand strictly less than 0.6 mm, R is greater than or equal to 6 when the section of the electrical conductor is equal to 0.6 mm, and R is greater than or equal to 12 when the section of the electrical conductor is strictly greater than 0.6 mm.