Retractable step
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United States of America Patent
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Apr 14, 2009
Grant Date -
Aug 30, 2007
app pub date -
Feb 20, 2004
filing date -
Mar 25, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A retractable step for entering and exiting rail vehicles. The retractable step has a surface which can be walked upon and is configured to be extended in an essentially linear direction to bridge a gap between the rail vehicle and a platform. The retractable step includes a leading edge and has at least one sensor configured to prevent a collision with objects during an extension operation of the retractable step. The strip is movably connected to the retractable step and extends over an entire length L of the retractable step.
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