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. 21, 2002
Filed:
Jan. 20, 2000
Claudio De Angelis, Lucerne, CH;
Inventio AG, Hergiswil, CH;
Abstract
A synthetic fiber cable, preferably of polyamide material, consists of a bundle of load-bearing synthetic material fibers and at least one conductive temperature sensor element extending a length of the cable. The temperature sensor element forms, in dependence on the temperature, a conductive connection over the length of the cable, which connection is constantly monitored by a measurement circuit. The connection is interrupted at a checking circuit in the case of temperatures critical for the synthetic fiber cable. The temperature sensor element can be a fine wire melting at the critical temperature. The synthetic fiber cable can be used in elevator installations amongst other things as a safety device, especially as a fire alarm.