Hi Steve
I know what you mean it's a real messy time consuming business which is why I have avoided it in the main.
Ultra Sonics is nothing new it's been around for years,they just havn't been used in the domestic/office cleaning field up to now. jewellers use them to clean items.
Machine parts can also be cleaned using the same method.
As for blind cleaning the machines in the main come from the states I have not been able to make contact in this country with a reliable supplier.
They come in 6ft,8ft and 12ft lengths you simply place the blind in the machine turn on and 60 seconds later they are clean and ready to be rehung.
Be warned the machines start at around 6K and can go upto 18k, not a cheap piece of equipment so you have to have the contracts to make it pay.
Any thing can be cleaned using this method even computers,tv's dvd's etc its an amazing bit of kit.
I will post a few web sites addresses once I can lay my hands on them.The company I have been talking to is Morantz again bases in the states.