Method for semitrailer transfer
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United States of America Patent
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Nov 26, 1991
Issued Date -
N/A
app pub date -
Aug 10, 1990
filing date -
Jun 18, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method for loading and unloading semitrailers on a train of flat cars by coupling the semitrailers to power driven stanchions respectively, providing the power driven stanchions with automatic control in the form of proximity sensors for governing movement of the semitrailers in accordance with proximity of adjoining semitrailers and automatically steering the stanchions along a guide path to load and unload the train.
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