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I have a serious phobia of being confined (this suit would really fall under this definition of being seriously restrained) while this confined space slowly fills with water...In a psub, you have at least enough room to bend over and kiss your *&*#4 a kiss goodbye. What if last nights chilli turned out not to be so good once down to 800'? These suits are really fantastic, these are just not for me. David Bartsch > Date: Tue, 16 Dec 2008 01:17:20 -0500 > From: pnuytten@compuserve.com > Subject: Re: [PSUBS-MAILIST] ADS NewtSuit/HardSuit Applications > To: personal_submersibles@psubs.org > > > Dear Frank D. > If you check out OceanWorks website you'll see a poster showing > what appears to be the 'evolution' of the 'Hardsuit' - Well, as my ol' > Grandpa used to say . . "don't eat that, Aylmer, that aint soup!". > All of these 'different' models are based on my 1980/90's patents on the > rotary joint. Understand that the 'suit' is nothing more than a big camera > housing or a very small one-atmosphere 'submersible that you wear'. > All the old ADS designs look similar - of course, they're all > anthropomorphic. No trick to going deeper - make it thicker! The real trick > is the joint. At a thousand feet the pressure on a six inch diameter wrist > joint is 500 psi times the area of the joint - about 25 square inches - > about 25 thousand pounds of bearing force - 12 1/2 tons - near the weight > of a London double-decker bus. Now put that 6 inch rotary joint on the > pavement, pick up the bus with a crane and lower it carefully onto the 6 > inch bearing/seal rotary joint until it is taking the full weight - now try > to spin the bus with one finger! Good luck! That, in a nutshell (or a > 'newtshell'), is the problem. The rotary style joint is used - in > combination with wedge-shaped spacers - to get a wide envelope of limb > movement. The joints of the suits immediately prior to the Newtsuit - the > 'Jim' suit - 'Sam suit' - 'Wasp' - etc.all used variations on a ball and > socket joint developed in the UK by . Joseph (Salem) Peress in the > 1920/30's. So, why not a ball and socket?- after all, that's how our > joints work! Yeah, but our joints don't have another limb running through > the center of them - imagine a big quarter-turn valve - stick your arm > through it - now try to close the valve to simulate movement between the > hollow ball and the rigid shell that contains it. The ball and socket > joints had very limited limb movement. That's why I went to a rotary > system. > I set up a company called 'Hardsuits International Inc.' to > manufacture the Newtsuit, I took the company public in the early 1990's and > sold my interest in 1996. - The basic patent had expired in 1994, I wanted > to build microsubmersibles, and I already had an idea for a new generation > of lighter,cheaper atmospheric suits with a new type of rotary joint.( > Hence the 'Exosuit' that you can see on our website - the first prototype > is in our shop now.) So . . . we've built dozens of compact deep-diving > subs,both sold them and operated them all over the world, I've much enjoyed > the long hours developing the Exosuit and it's various new components such > as the 'Prehensor' hand, the swimmable 'Newtfoot' ADS fin, etc., - and > life is good. > > Only one thing bugs the hell out of me: > > Why is no-one building 'amateur' atmospheric diving suits!!!! > > Hundreds of guys (like Psubbers) are building subs in their > apartment closets (or in Columbian bodegas (G), thousands of others are > building radical ultra-lights so they can fly! Amateurs are building > rockets and planning to one day get into space. Why aren't there guys > building new generations of Newtsuits? Too tough to figure out the joints? > Hell, go to expired patents and copy them as a starting point! There are > tons (careful, though, most of them didn't actually work!) I don't, for a > second, under estimate the ingenuity of a basement or garage builder who > wants to build a new type of car, a new type of helicopter, a new type of > missile! Where are the new type of ADS buiders?? . > > > All the reasons for using ADS over ambient pressure sat or ROVS are > pretty obvious - and have been for the quarter century! Go to a thousand > feet in 5 minutes. Work there for 8 hours. Take five minutes to come back > to the surface. Grab a shower, snap a cold one one and watch TV. Beats the > hell out of 8 days of decompression in a smelly steel container! > > Comments?? > > Phil Nuytten > > > P.S.Quick answer to your question, Frank: there are hundreds of > certified ADS pilots. We ( the little bitty ADS bunch) trained military, > scientific and construction divers - lots of 'em. The Newtsuit is used by > every major navy,; US, French, Italian, Japanese, Russian, Norwegian, and > so on. We also trained environmentalists, movie stars, treasure hunters, > archaelogists, an on and on. > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > The personal submersibles mailing list complies with the US Federal > CAN-SPAM Act of 2003. 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