Dapco Industries, Inc.

Nordco Inc.

David William Giragosian

James R Norris, Jr

Dominick A Pagano

Joseph Setaro

Ronald M Keenan

Howard A Sholl

Paul Sanders Underwood

John E Leonard

Ian Wallace McGrath Gage

Jacob Eisler

Phillip Edwards, Ii

A rail flaw detector is configured for locating flaws in rails of a railroad track and for use with a vehicle travelling on the railroad track. The detector includes at least one signal applicator configured for applying ultrasonic signals to the rail and for receiving return signals; a mechanical subsystem connected to the applicator and to the vehicle and configured for maintaining the at least one signal applicator in operational position on the track. A human-machine interface is connected to the at least one signal applicator, is configured to control the detector and to monitor sensed rail condition. In one embodiment, the human-machine interface includes a schematic display of the rail being monitored and at least one touch screen control for controlling the mechanical subsystem and the at least one signal applicator.

Rail flaw detector

An ultrasonic real-time inspection method which is user-friendly in an interactive environment to provide ease of operation, as well as a combination of consistency, thoroughness, and speed of operation in flaw detection not achievable by other methods. The system and method are useable on a traveling wheel so as not to unduly interfere with normal train operation. The system and method includes a test device that moves along train wheels injecting pulses into the wheel to detect acoustic responses caused at a discontinuity in the wheel. A processor can also be included to determine a pattern of a feature of the wheel associated with the discontinuity.

In-track wheel inspection system

A detector and tracker using a three coil sensor for is disclosed. The detector detects eddy current variations caused by differences in electromagnetic characteristics in two adjacent materials. The eddy current variations are measured and compared to determine the magnitude and direction the detector may be from the center of one of the adjacent materials. The magnitude and direction determination by the detector can be used to drive a process controller to position the sensor.

Method and apparatus for moving along a boundary between

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Waterbury, CT, United States of America

David William Giragosian