GPS controlled multiple source material application
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 25, 2003
Issued Date -
N/A
app pub date -
Sep 8, 2000
filing date -
Apr 2, 1999
priority date (Note) -
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Abstract
A GPS controlled multiple source material application or ballast spreading system includes tracking the position of a plurality of ballast hopper cars using GPS derived coordinates and controlling the opening of multiple ballast doors to spread ballast on desired sections of track for railroad maintenance. The process involves tracking the current hopper loads, the opened or closed state of the ballast doors, and the concurrent amount of ballast which has been spread on the desired track sections.
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