Gentlemen... There is truly nothing new under the sun.
Free energy concepts and such devices have been around for many years now, or at least in prototype stages anyway... Nikola Tesla was also one of those people working on this concept as well from my understanding and research.(which may be another reason about his mysterious death, which leads to my next statement...)
The reason there are no such devices around to this day gentlemen is because there are far, FAR too many people in power with lots of money at their disposal, particularly in the energy and oil industries who have much, much to loose to such a device if it ever hit the market, therefore... Most likely they can and will do everything in their power to keep such a device from ever seeing the light of day. My estimation is most people who do develop such a device and seriously consider marketing it are quickly bought up by said oil and energy companies, promptly shelved never to be heard about or seen ever again.
Regardless, best of luck in development of such a device, it would finally and radically change our planet forever for our energy needs. Perhaps this too is why a free energy generator has never become a feasible reality...