About this 3D model

This is an implementation of Nikola Tesla's "Valvular Conduit" that acts as a one-way-valve without any moving parts. http://blog.makezine.com/2012/01/05/the-tesla-valve-one-way-flow-with-no-moving-parts/ This implementation follows Tesla's patent diagrams, perhaps too closely. It works, but the cap is a bit leaky so I plan to re-design it in the future.