Hi Valterra,
I gotta call you on this. I checked their home page, and your post is nothing short of a BS lie. Nowhere do they say they own the patent on VAWT's, let alone twice.
They say VAWT's are patented, and they say they use a patented generator design. They don't even say they own the patents they are using on the front page.
Pacwind's 'About Us' page clarifies it:
"Phil has recently won U.S. Patents on the "Omnidirectional Multi-Bladed, Single Axis Wind Generator", his unique Permanent Magnent Generator (PMG) and the overall VAWT design."
It's downright ignorant to suggest that VAWTman's screenname or Windstuff Ed's turbines are an infringement of patent rights, simply because they like VAWT's.
The saddest part is that there are readers here who took your fib seriously.
Spreading misinformation and lies does no good. I would hope that you start reading what is actually written, rather than reading what you want something to say, and I would hope that you educate yourself about patent and intellectual property rights.
With that said, their turbine appears to be nothing more than a Banki/Mitchell turbine, which has been turned on its side. Air is simply a less dense fluid than water, but power can be extracted using the same principles.
