Unspillable bottle

[taj05]

Hello,
I am developing a drinking bottle that needs to be completely or as much as possible unspillable. The drinking interface (the whole where the liquid comes out) needs to not have any valve that opens when pressure us applied. Could a labyrinth path for water to escape reduce how much water will apill out when the bottle hit the floor from a height. Will Ventury effect make it worse? Any other idea to solve this?

thanks for your help

 

[Stick.]

Reducing how much water spills out by just using a labyrinth path would also reduce how quickly the fluid can be drunk, which may be undesirable, depending on how much you restrict it. Also, this design means that if you want to drink faster, you also have to accept faster spillage. It's also not really any better than just a cap with a small hole in it, which is much simpler, so I don't see the point of the extra components.

There are plenty of existing solutions to this problem (allowing water to leave a bottle when you want it to, and stopping it from leaving when you don't want it to). Have you already looked at the various existing solutions to this problem, determined their shortcomings, and identified which shortcomings you intend to fix?

Also, this should be in the student forum. I've marked it to be moved there.