There will NEVER, I mean NEVER be a perforated 'Torus' screen. There may be a perforated 'compound curved', or 'toridial section... 'hardscreen', but never a perferated "TORUS" screen. Acoustics WILL NOT ALLOW. PERIOD.
Which is probably why there is such a slowdown. They are probably wracking their brains.. trying to find a way to patent it. Too bad. What the hell they will ever get to be in the patent specification, that will allow only them to manufacture it..(toridial section hardscreen) is totally beyond me. The patent system is so slowed down right now.. by unessessary flak and overload.. that it would be a MINIMUM of 2 years berofe you see a screen. IF anything comes of it. Systems MIGHT be issued soon, if they get a 'patent pending' situation occuring. This would only occur if they have recieved notice that their patent appliction has been 'accepted'. But, it could still be rejected. The safe course is to wait it out. That means 2 years, minimum.
Just thought you might like to know. This is, of course, all speculation, based on incidental knowledge of the patent applications system... if we are indeed waiting on Sigma and Don to run a patent through.
OTOH, perhaps not, and we are mrely waiting for the thing to be perfected to a reasonable degree.
I have sat on my hands and mouth ever since Peter asked me to, and I haven't even made myself a simple compound curved screen. Not much longer.
[This message has been edited by KBK (edited 07-26-2001).]