Door opening control apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 29, 2002
Grant Date -
N/A
app pub date -
Mar 13, 2000
filing date -
Jun 19, 1997
priority date (Note) -
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Abstract
A platform sensing and control system including a wireless sensor (10, 12) for sensing at least the presence of a platform (26) opposite a door (32) of a railcar and providing an output indication of at least a platform presence in response thereto, and a door control controller (14) operative in response to the output indication of at least platform (26) presence for enduring that normally a door (32) is not opened other than when a platform (26) is located opposite such door (32).
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