System and method for detecting a change or an obstruction...

Details System and method for detecting a change or an obstruction... System and method for detecting a change or an obstruction...

2005-08-18

2009-08-18

Le, Mark T (Department: 3617)

Railway switches and signals

Roadway-defect protection

Electric

C246S12200A, C246S249000, C246S293000

Reexamination Certificate

active

07575201

ABSTRACT:
A system for determining the capability of a railroad track to safely carry railroad vehicles over the track by sensing changes in the environment proximate the track, the system including a sensor for detecting a magnetic field proximate the railroad track and generating data indicative of the magnetic field, a processor for processing data from the sensor to identify changes in the magnetic field proximate the track, and a communication device in communication with the processor for transmitting indicia indicative of changes in the environment proximate the track affecting the capability of the track to safely carry railroad vehicles.

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patent: WO 97/44654 (1997-11-01), None
patent: WO 02/30729 (2002-04-01), None

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