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:
Mar. 10, 2026
Filed:
Feb. 12, 2021
Faiveley Transport Italia S.p.a., Piossasco, IT;
Roberto Tione, Lauriano, IT;
Faiveley Transport Italia S.P.A., Piossasco, IT;
Abstract
A monitoring device of the open or closed state of an electric line is disclosed. The device includes a first connection terminal and a second terminal connected to the electric line, a current generator that provides a non-zero reference current when there is a voltage greater than a predetermined minimum voltage Vmin at its ends and provides a zero current when there is a voltage less than the predetermined minimum voltage Vmin at its ends, at least one opto-isolator means including a lighting device and a respective photosensitive semi-conductor element, and a current detection and power supply module that detects current flowing therein, supplies a supply current to the lighting device when the detected current is equal to or greater than the reference current, and supplies a zero supply current to the lighting device when the detected current is less than the reference current.