Hang about, you weren't Crouzet were you? It ain't that hard, all you need is 3/2 pilot / spring NO valve an a unidirectional flow control valve on the downstream side teed to the pilot, but is a neat idea. Saves loads of crap with logic cascades. Like pressure decay sensors and the like.
I was with Pneumax for 18 years. Norgren, Joucomatic, Camozzi an all that.
Bore the second concluded
While we're at it. Next time you're behind a tarmac truck with a pneumatic lift, take a look at the rams. If they're cylindrical with a premade rear male clevis..
I designed em [/QUOTE]
Good lad!!!