Semi-Auto Barrel Sealing Piston Valve?

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spudkilla224
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Wed Jul 22, 2009 8:40 am

Hello everyone, I'm in the process of designing a Semi-Auto Barrel Sealing Piston Valve. And I was wondering if it would even be possible? And if someone has already done it?

I would be changing the piston to a piston somewhat like Clide's Semi GB Cannon, like a piston on a threaded rod. It's just how to attach the second air tank to fill right after I shoot the first shot from the main tank.
and not allowing the air from the second tank in the first air chamber until after I shoot.

Any Suggestions?

:D
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jackssmirkingrevenge
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Wed Jul 22, 2009 8:52 am

There are plenty of semi-auto QEV launchers on this site that would qualify. You don't need a second tank, just a pilot valve that opens briefly and a spring behind the piston to reset it.
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inonickname
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Wed Jul 22, 2009 9:06 am

Yep, nothin to it. For example I can leave my rifle hooked up to an airline and fire semi automatic (as fast as the chamber can fill).
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