I didn't find the post you referred to, but it doesn't matter, I know this stuff is nothing new.
I didn't mean to imply that the overdrive boxes never existed, but it's not like I can just go out and buy one off the shelf today. I concede that I haven't thought much about the actual gear arrangement. I'm sure there are many ways of gearing such a device. Having the input and output shafts inline would be nice from a packaging standpoint but not absolutely necessary. I won't go so far as to say what I've suggested is outright wrong...yet.
Are you saying a gearbox couldn't be built to house inline i/o shafts with an overdrive ratio? How is this different than any transmission for built for vehicles. I just need one speed, overdrive. Maybe you're saying there's and easier or cheaper way?
I couldn't find your patent(s) on Google, can you give a reference number?
I found one old thread where you posted some scanned docs, but I don't think this is what you were referring to. http://www.offshoreonly.com/forums/s...98#post2355098