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. 11, 2021
Filed:
Jun. 29, 2017
Prysmian S.p.a., Milan, IT;
Zekeriya Sirin, Milan, IT;
Serdar Buyuk, Milan, IT;
PRYSMIAN S.P.A., Milan, IT;
Abstract
A flame retardant cable for low-voltage applications is disclosed which comprises at least one conductor individually electrically insulated by a layer of polymeric material, a fire-resistant tape containing an inorganic material wrapped around said at least one individually electrically insulated conductor and an multilayered outer sheath having flame-retardant properties which encloses said at least one individually electrically insulated conductor and said fire-resistant tape, wherein said multilayered outer sheath comprises an inner layer and an outer layer, the inner layer being made of a flame-retardant polymeric material having a limiting oxygen index (LOI) higher than the LOI of the flame-retardant polymeric material forming the outer layer of said sheath. Such a cable has improved flame retardant performances, especially regarding a lower generation of droplets during burning, which render it capable of being certified in higher classes of the current international standards, for example of the European standard EN 50399:2011/A1 (2016).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile