Glass Conical?

[afsee]

Hello dead thread.
A year after all of this and I'm just wondering if anything ever got made, quoted for production, or even sketched. I think the demijohn idea would work with different fittings to accommodate the larger opening. But it's a tad too big and I don't see similarly shaped smaller ones. I'd suppose that a 5 or 6 gallon carboy only redesigned with the proper sloped shoulders should alleviate the larger problem. With the same circumference of the neck, opening, and base it would also be compatible with all other carboy accessories. And it shouldn't cost that much after the mold is taken care of.

 

[StMarcos]

I'm all for a borosilicate conical. Prob add view-ports to a stainless one first though. Actually, having a transparent material in the tub layers would be great. Above as well, if you wanted to make a racking arm worth a dime.

 

[audger]

Hello dead thread.
A year after all of this and I'm just wondering if anything ever got made, quoted for production, or even sketched.

since the OP hasnt even logged on since December of 2010, im going to guess not.

 

[afsee]

I'm all for a borosilicate conical. Prob add view-ports to a stainless one first though. Actually, having a transparent material in the tub layers would be great. Above as well, if you wanted to make a racking arm worth a dime.

The view ports would definitely help. I think they would have to be fairly large to let enough light through. Probably in two lines of glass running the entire length 180 degrees apart. Should be easier to construct than the glass also.

 

[the_bird]

I'm all for a borosilicate conical. Prob add view-ports to a stainless one first though. Actually, having a transparent material in the tub layers would be great. Above as well, if you wanted to make a racking arm worth a dime.

Well, borosilicate carboys exist, and are several hundred bucks a pop. Like this basic 5-gallon (19L) Pyrex carboy. It's $328, a price that's pretty consistent with what I've seen for other large Pyrex carboys from various places over the years.

Once you start getting into dollar figures like that (without even considering that you'd be making a custom product, so there'd be additional costs), you're losing all real advantages (IMHO) over stainless.