Great thinking, Sparky!
Your innovative open mindedness is brilliant!
Chapeau bas!
One day when I win that lottery, I will ask you to built me a supercar.
Well, here it goes.
Actually I said that everyone came down to their pits to have a look at this brilliant piece of machinery; it is about rims; used with the tires on; for wet conditions and it might cost jobs ... so it's a:
...
rim washing machine! 
All rims are washed by hand. Some fella washes them after each session just like most of us do.
Minardi clearly wanted to cut costs and not pay a bloke for the whole weekend or gain time for the mecanics not to be bothered with it, so they designed a rim washer! It kinda looks like the machine they balance the tires on, so it rotates, with a hood on it and is being washed. Simple but unseen before so all the teams came down to have a look and I guess, by next season everyone will use them.
Non adjustable?
No re-valve?
The same on every track?
WOW! His suspension configuration must allow this probably, so changing aero loads and bumpy-ness won't affect them.
Cool runnings, Brunner!