Interesting idea; I like the closed loop nature of the system although carrying around the extra O2 would be a problem, yes?
Oh yeah, this is how you do a document link to USPTO. You can't just copy the URL, it will expire as Frank suggests. HTML version http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=4112875 TIFF version http://patimg2.uspto.gov/.piw?Docid=04112875&idkey=NONE I don't see much connection in this to the ideas of Papp et al, as the argon is being used as a working fluid. But if you had the engine you could perhaps test some of the ideas suggested here. I think Fred has the right idea, hobby engines would make for a good test bed. K. -----Original Message----- From: Grimer [mailto:[EMAIL PROTECTED] Sent: Tuesday, May 09, 2006 10:46 AM To: [email protected] Subject: RE: The Pappajo engine At 07:18 am 09/05/2006 -0700, you wrote: >Forgot to add that the patent is online (and expired >of course): >http://tinyurl.com/ru6vs When I clicked on the above tinyurl, that appeared to have expired likewise. 8-) Frank
