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:
Jul. 11, 2017
Filed:
Sep. 12, 2014
Westinghouse Air Brake Technologies Corporation, Wilmerding, PA (US);
Robert C. Kull, Olney, MD (US);
Westinghouse Air Brake Technologies Corporation, Wilmerding, PA (US);
Abstract
A broken rail detection system including: a power module having: a first electrical connection to the first rail to apply a direct current voltage; and a second electrical connection to the second rail to apply a direct current voltage; a diode shunt arrangement; a measurement device to sense or measure current; and a controller programmed or configured to: (i) cause at least one application of a direct current voltage of a first polarity on the railway track; (ii) determine the current resulting from the application step (i); (iii) cause at least one application of a direct current voltage of a second polarity on the railway track; (iv) determine the current resulting from the application step (iii); and (v) determine the presence or absence of a break based at least partially on the determined current.