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:
Apr. 29, 2025
Filed:
Jan. 31, 2023
Proterial, Ltd., Tokyo, JP;
Proterial, Ltd., Tokyo, JP;
Abstract
A multi-core cable is provided with a heat detection line including a twisted pair wire having a pair of heat detecting wires being twisted together, a plurality of electric wires spirally twisted around the heat detection line, and a sheath covering the heat detection line and the plurality of electric wires together. Each heat detecting wire includes a first conductor and a first insulator covering around the first conductor, and a jacket covers around the twisted pair wire. Each electric wire includes a second conductor and a second insulator covering around the second conductor. The jacket includes an inner layer, an outer layer, and an intermediate layer provided between the inner layer and the outer layer, and a hardness of the outer layer is higher than a hardness of the inner layer.