sandyfoundation,
Yes there is a link-up. The Rotoclave pre-prepares (??) waste materials in advance of (among other possible processes) the PIM process. G W Butler uses it.
This is the TDM RNS, dated 28 June 2005:
The link-up appears to date even from Feb 2005, or earlier:
A Google on rotoclave +3dm provides 17 hits.
At least Google helps you line up the dolls for TDM, but they're russian dolls, so what's inside is anyone's guess.
I'm forced to agree about the attitude they have about cash, and their murky structure, but you take it as it stands now, which is more-or-less priced to fail.
As far as revenues go, "30% of the royalty generated by the deployment of the PIM process by EPT to be passed on to 3DM Worldwide plc."
So we won't know until revenues are generated. Remember that EPT are unquoted, so there's no requirement of disclosure on their part.
It could well happen that the restructured business model will do the biz - we'll need to wait.