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Re: Electric door bump thingie

Subject: Re: Electric door bump thingie
From: Frank Olson <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 22 May 2006 08:46:00 GMT
Newsgroups: alt.security.alarms
References: <Zn%bg.1$JX5.401@xxxxxxxxxxxxxxx> <6ibcg.3596$921.1479@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>

bdolph wrote:
> Here is an idea.  You have a magnetized plate on the magpull.  Use DC
> and the magpull and the plate will act like to magnets.  When energized
> they will attract.  Reverse DC and the field and they will not only open
> but repel the door just enough to grab the door.


I don't think a magnetic lock works that way when you reverse the
current.  I've never tried it though, so I can't be sure.

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