Sure the openers are mandated to have safety reverse mechanisms installed.
But I wouldn't rely solely on them to stop and reverse the door. As we all
know these reverse mechanisms aren't foolproof.

Compare apples to apples. A railroad is not controlled with cheap reversing
systems as would be found in an electric opener,. Their safety measures are
a bit more elaborate then an electric door opener's.

If you want to compare apples to oranges then we can also say the space
shuttle is also controlled by remote control and could be piloted
automatically. But we won't find cheap reverse mechanisms there either.


"Calvin Henry-Cotnam" wrote in message
news:c13Qe.122$hW.73@tor-nn1...
Garage Door Parts, LLC ) said...

It's not very wise to operate an overhead door based only on the status of
a
light. You should be able to see the door, anything or anyone that may
be
under it before pressing that button...

Aren't garage door openers supposed to (and for a few years now) have a
sensor that stops and reverses the closing operation if anything gets in
the way?

Ours is just under two years now, and our cat (not the one used for an
audible indicator! ;-) ) knows well that she can stop the closing door.

That aside, railroads often use remote-controlled locomotives to shunt
cars in and near yards. If I shouldn't close my garage door remotely
when I can't see it, even though it will stop if someone or something
gets in the way, why should a railroad permit an operator operate a 2000
HP
locomotive from a quarter mile away? Of course, there are signs and strobe
lights on one of these locomotives warning you, while your garage door
posts no such disclaimer.

--
Calvin Henry-Cotnam
"Never ascribe to malice what can equally be explained by incompetence."
- Napoleon
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