Okay, so I've been eating a lot of pasteurized cheese spread, the kind that you don't have to refrigerate which comes in a pressurized can. I've always had trouble with these in that they lose pressure when the bag gets smaller, making the cheese come out progressively slower and trapping some of the cheese inside when it seems to be empty.
I finally got fed up, depressurized a can, and split it in half to reverse engineer it. It's just a bag of cheese in a can with some kind of pressurized inert gas, the cheese isn't aerated at any point, it just flows as a function of the pressure difference realized when the little valve on the end is pushed open.
So, I pulled the little bung out of the bottom of a can, let the gas escape, and applied a Schrader valve and some teflon tape after reaming the hole a little larger. I now had a can that I could repressurize with a bike pump.
Since I hadn't measured what a can like this could take in pressure and calculating the factory charge level off of the flow rate of the viscous cheese was too daunting, I stashed the can in a little plastic bucket and buried it in heavy textiles, then ran my compressor until I felt the explosion. The brand I was using could take about seventy lbs, but it was probably designed for less than half of that.
So, now I'm staring at an interesting prospect. I could add a Schrader valve, along with a seperate one way valve or screw-off and bleeder mechanism to refill the food bag and make a rechargable food dispensing container. Sure, I'd take new measures in designing the can since I don't think the thin metal can take the fatigue of multiple high and low pressure cycles without turning into a time bomb, but it would more or less be a recognizable industrial package refitted for homebrewers.
So Clockcrew, what would you use this dispenser for? Peanut butter? Caulk? Hand soap? Water based lubricant? Gourmet sandwich spreads? Throw something interesting at me so I know that someone besides me will use a rechargable can if I make them.
Health, scrap metal and ammo.
Smaller dispensers
pez
Quote from: Topcatyo;1699570Health
That's brilliant.
Quote from: Sinister Clock;1699571Smaller dispensers
Pocket size, smaller dispensers also mean that higher pressures are possible.
I realize that with little modification low viscosity liquids could be aerosolized.
Quote from: Solenoidclock;1699581Pocket size, smaller dispensers also mean that higher pressures are possible.
I realize that with little modification low viscosity liquids could be aerosolized.
I think he means the dispenser should dispense smaller dispensers.
The problem is that using regular air would oxidize the food and turn it rancid unless an inert gas were used, usually nitrogen or nitrous oxide. You might be able to seperate the air from the food using some kind of plastic bag, though
Quote from: Gayface;1699584I think he means the dispenser should dispense smaller dispensers.
A like a pez dispenser full of dispensers then? Combine that with topcatyo's health idea and you could have a device that dispenses a variety of nourishing packaged foods, for people who really don't care what they're eating and don't want to prepare or chew anything every time they get a hunger pang. You could just buy some food paste mix in whatever flavors you want and mix up a week's worth of meals into squirt cans, boil them, then charge them all and not even have to worry about a fridge.
Quote from: PineappleClock;1699587The problem is that using regular air would oxidize the food and turn it rancid unless an inert gas were used, usually nitrogen or nitrous oxide. You might be able to seperate the air from the food using some kind of plastic bag, though
That's exactly what I'm doing. The gas doesn't need to be inert because it's only purpose is to exert pressure on the bag, so assuming the valves do their jobs then there is nothing to worry about so long as the food is pasteurized.
Quote from: Solenoidclock;1699588A like a pez dispenser full of dispensers then?
I mean like this:
Quote from: Sinister Clock;1699590I mean like this:
recursive vending machine[/img]
oh shit yes
I think I got enough motivatin'.
I'm going to go design paste shooters that look something like IEDs now.
You never said that you're patenting this idea so I am
PATENT PENDING PATENT PENDING DON'T STEAL MY IDEA
don't worry though bro I'll sell it back to you.
EDIT: This could make good gear for survivalists. Convenient, space saving food storage that they can refill. Even better if it comes packaged with a miniature air pump. One designed to not be able to produce more pressure than the container can hold...
edit2: You could also market it as a water/gatoraid/whatever holder that you don't need to worry about spilling or losing the cap for. Just stick it in your mouth and bend it.
So you're using a can of Cheese Whiz?
I just wanna make sure because your description of it confused me.
It would be pretty cool to have peanut butter in a cheez whiz can. Better yet, pack it with Jelly!. Instant sandwiches! Just spray and slap!
Quote from: Wind-up Clock;1699683It would be pretty cool to have peanut butter in a cheez whiz can. Better yet, pack it with Jelly!. Instant sandwiches! Just spray and slap!
:hi5:
Now, I wonder if you could also make some kind of banana paste to go with peanut butter for us Canadians.
Gas gets colder as it expands right? Could you put in some mechanism that slowly releases gas pressure over time to make the thing self cooling?
Quote from: Marlin Brando;1699680So you're using a can of Cheese Whiz?
I just wanna make sure because your description of it confused me.
ur a can of cheese whiz
Quote from: The Apocalypse;1699694ur a can of cheese whiz
lemayo
Silly Putty dispenser.
Wtf sometimes you are so awesome clockcrew this thread is so awesome.
Paint? Helpful for those who mix their own paints, but don't want to buy all them make-yers-own tubes. Would need some specialization of the design.
I don't know maybe it could have uses for astronauts? I'm sure they have some kind of liquid/food/glue shit they want to squirt out of a tube, and it would probably be better if it was refillable.