On Tue, 24 Nov 2009 20:03:26 -0500, Ned Simmons wrote:

On Tue, 24 Nov 2009 18:18:55 -0600, Tim Wescott
wrote:



A really heavy duty screen door damper that worked in reverse (i.e.
damps on the way out instead of the way in) would be absolutely perfect.


Most hydraulic shocks damp when the piston is pushed in, but though I've
never used them, I think I have run across reverse acting units.

Here are the mfrs I'm most familiar with:
http://www.enidine.com/Industrial/DAMain.html
http://www.deschner.com/products/kinechek.html
http://www.acecontrols.com/
http://www.efdyn.com/products.html
http://www.enertrols.com/

A search for "hydraulic shocks" or "hydraulic dampers" on thomasnet.com
will no doubt turn up more.

Thanks Ned. I just found Ace Controls, so we're on the same page.

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www.wescottdesign.com