Railroad Freight Car Loading Or Unloading
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United States of America Patent
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app pub date -
May 12, 2011
filing date -
May 11, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to an apparatus and a method for railroad freight car loading or unloading. More specifically, the present invention discloses an apparatus for transferring freight among different modes of transportation including: a railway spur; zones disposed along said railway spur; an L-car disposed over said railway spur to carry said freight; an external propulsion mechanism disposed along said railway spur to move said L-car; sensors and actuators disposed in said zones to start and stop said L-car; connector rails disposed along said railway spur to direct said L-car onto roads adjacent to said railway spur, and a tractor disposed on rail to move one or more L-cars in a cluster or string. The present invention also relates to a method of transferring a container or a semi-trailer on and off an L-car with a straddling crane having portable scaffolding. The present invention also relates to a method of moving the L-car to a connector rail with a straddling crane having portable scaffolding.
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