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.

Date of Patent:
Nov. 19, 2024

Filed:

Apr. 09, 2021
Applicant:

Hatch Ltd., Mississauga, CA;

Inventors:

Patrick Henry McGinn, Freelton, CA;

Mark James Mitchell, Vancouver, CA;

Matthew Douglas Brown, Oakville, CA;

Matthew Gorczyca, Toronto, CA;

Michael Morgan Campbell, Toronto, CA;

Assignee:

Hatch Ltd., Mississauga, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B61K 9/08 (2006.01); B60M 3/00 (2006.01); B61D 15/12 (2006.01); B61L 27/53 (2022.01); G01R 31/00 (2006.01); G01R 31/11 (2006.01); G01R 31/52 (2020.01); G01R 33/00 (2006.01); G01R 33/028 (2006.01); G01R 33/04 (2006.01); G01R 33/07 (2006.01); G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
B61K 9/08 (2013.01); B60M 3/00 (2013.01); B61D 15/12 (2013.01); B61L 27/53 (2022.01); G01R 31/008 (2013.01); G01R 31/11 (2013.01); G01R 31/52 (2020.01); G01R 33/0011 (2013.01); G01R 33/0076 (2013.01); G01R 33/0286 (2013.01); G01R 33/04 (2013.01); G01R 33/072 (2013.01); G01R 33/091 (2013.01);
Abstract

A method, device, and system for detecting a current leak in a traction power rail. Magnetic or electrical properties of the rail are measured. The measurements are performed using a rail instrument that senses the properties around the rail at various times while the instrument is being moved down the rail, such as using a cart or train. The rail instrument may be a flux concentrator or open Rogowski coil. The locations of the rail, about which the readings are taken by the rail instrument, may be determined and correlated with the measurements themselves. The method may comprise measuring the magnetic field of the rail along a length of the rail, and identifying a leak based on differences between the magnetic field measurements. The system may comprise a cart comprising the rail instrument and a location instrument.


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