The dubble pipe configuration is pictured in the patent with the addition of the external band heater
http://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20091015&DB=EPODOC&locale=en_EP&CC=WO&NR=2009125444A1&KC=A1 On Sat, May 7, 2011 at 7:09 PM, Akira Shirakawa <[email protected]>wrote: > On 2011-05-08 00:47, Axil Axil wrote: > >> If you missed this old post, here is s repeat: >> > [...] > > So, are you suggesting there is a core surrounded by water, like this? > > http://i.imgur.com/pwZW2.png > > > > (Both versions together: http://i.imgur.com/Kf7mO.png ) > > Cheers, > S.A. > >
