Hi Ray & John.
I used to work at special metals Wiggin in Hereford where I did my appreniceship. The company makes "Monel and Inckonnel" nickel materials used in the manufacture of aircraft engine turbine blades and oil industry components to name a few.
In the hot forge shop they use huge manipulator machines the size of your biggest 6 wheel tarmac laying machine. These ran on puncture proof tyres with foam inner tubes, as solid tyres would of destroyed the concrete floor as the machines relied soft pressure for manouverability.
There are special app's tyres available that don't use air to keep their shape but they are predominately for low speed applications. The biggest hurdle is over comming distortion under load without compromising grip and then producing an affordable tyre.
Certain police, milatary vehicles do have run flat tyres fitted but these are few and far between.
Going back on track to the tyron bands, I don't think they offer anything more than a sycological reassurance factor as they do not use anything other than a standard tyre, which will desintigrate at it's normal rate anyway.
Steve L.