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. 09, 2024
Filed:
Jul. 21, 2021
Applicant:
Hitachi Metals, Ltd., Tokyo, JP;
Inventors:
Assignee:
PROTERIAL, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 11/04 (2006.01); G01K 11/06 (2006.01); H01B 7/18 (2006.01); H01B 7/32 (2006.01); H01B 17/58 (2006.01);
U.S. Cl.
CPC ...
H01B 7/324 (2013.01); G01K 11/06 (2013.01); H01B 7/18 (2013.01); H01B 17/58 (2013.01);
Abstract
A heat detection line includes a twisted pair wire composed of a pair of heat detecting wires being twisted together. Each heat detecting wire includes a conductor and an insulator covering a periphery of the conductor. The conductor is non-magnetic and composed of a copper alloy with a tensile strength of 900 MPa or more. A multi-core cable includes the heat detection line, a plurality of electric wires, and a sheath covering the heat detection line and the plurality of electric wires together. A melting point of the insulator of the heat detection line is lower than a melting point of an insulator of each of the plurality of electric wires.