I was tired last night and retired early. I figured I'd post about cartotanks today.
It's true, allegedly the first cartotanks were homemade devices modified from medical syringes by folks right here on ECF. Best to my knowledge, the first mass produced cartotank was from Vaporescence. The quality of these tanks left much to be desired at the time as they were barely better than the homemade tanks.
View attachment 355800 Vaporescence cartotank
Then Smoktech came out with the DCT (dual coil cartotank). This was of better quality (not by much), but what is important from a historical standpoint is Smoktech included their new Dual Coil Cartomizer with these tanks. Before this there were only single coil cartos. The name DCT became synonymous with any cartotank made thereafter regardless of the manufacturer. Many who bought a DCT tank mistakenly believed you had to use a dual coil carto in these tanks, but single coil cartos work just as well (probably better) as dual coils. Funny that no other manufacturer makes dual coil cartos except for Smoktech, and I doubt that it is because of patent reasons. IMHO dual coils do not work as well as single coils. Then came tanks from other manufacturers like the MAP and J-Tanks.

Smoktech DCT cartotank
The above tanks were made of polycarbonate plastic, which is susceptable to certain flavors of juice physically degrading the plastic. These tanks would crack or melt when exposed to cinnamon, citrus, and other flavors.
Something Safe for Cinnamon & Citrus Flavors
I believe the first pyrex cartotanks were made by Valley View Vapes.
http://www.e-cigarette-forum.com/fo...-valley-view-tanks-7ml-pyrex-tank-review.html These were safe to use with the tank-cracking flavors. The first editions used gromets instead of endcaps, and eventually Ray began offering delrin and metal endcaps. These were my first pyrex cartotanks before I switched over to IBTanked when they became available a short time later.
IBTanked Pyrex Cartotanks - Review Phiniac is another pyrex tank manufacturer which joined the market around this time.
View attachment 355813View attachment 355818 Triple V pyrex tanks from Valley View Vapes
View attachment 355827
IBTanked pyrex cartotanks
View attachment 355833 Phiniac pyrex cartotanks
There is a huge thread that is stickied in the Tanks section here
http://www.e-cigarette-forum.com/forum/tanks/228295-cartomizer-tank-master-list.html which if you start at the beginning will give you an idea of the progression of cartotanks as they were released on the market.