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:
May. 23, 2017
Filed:
Sep. 12, 2014
Prysmian Cables ET Systemes France, Sens, FR;
Thierry Jorand, Marle, FR;
Jean-Louis Pons, Saint Serotin, FR;
Abstract
A fire-resistant safety cable may include: at least two electrical conductors; an insulating layer around each of the at least two electrical conductors in order to obtain at least two separate insulated elements; and/or an outer jacket surrounding the at least two separate insulated elements. The insulating layer may be formed from at least one polymeric material capable of being converted, at least on a surface of the insulating layer, into a ceramic state at high temperatures in a fire. The at least two separate insulated elements may be untwisted and arranged so as to be parallel to each other, side by side, and separated by a space. The outer jacket may at least partially fill the space. A thickness of the outer jacket may be approximately constant over an external surface of the at least two separate insulated elements.