Originally Posted by
scott967
Don't know about bike tires, but I guy I knew in the used auto tire biz had a tank about 6"x12" that he filled using shop air. He attached it to the valve and it had a release button that would dump the tank into the rim/tire about instantaneously. I would think a smaller version of that for a bike would work. I don't do tubeless so haven't looked into it.
Commonly known as a bead blaster, they work by placing a nozzle in the gap between tyre and rim. I suspect a scaled-down version is going to struggle to get enough air pressure at the far side of the tyre before it escapes. I'd be interested to see someone try it with a 20x4" tyre, which is perhaps closest to the proportions of automotive tyres.