Method and apparatus for applying railway ballast
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United States of America Patent
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May 4, 2010
Grant Date -
Jun 7, 2007
app pub date -
Dec 4, 2006
filing date -
Jun 17, 2004
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Abstract
A method and apparatus for spreading ballast along railways makes use of an inertial measurement system to determine where to apply ballast from a hopper car. A variety of techniques can be used to determine the location and speed of the ballast spreading train, including manual or automated visual techniques, laser technology, radar technology, radio frequency transponders, magnetic sensor, thermal imaging and aerial photogrammetry. The invention also contemplates “on the fly” surveys and terrain profiling using lasers or radar.
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