This idea started with us thinking about the most important thing you need to go to outer space, fuel. Without fuel, we cannot power the spacecraft. So we tried to create an effective way of how to transfer resources in all types of terrains in space or planets. Then an idea came up about a transfer port that can connect to the spacecraft to transfer resources without the need of having the vessels close together or transferring resources to multiple vehicles per time. To counter the problem of docking, we used a flexible hose to be able to connect each port in any way or form. the one thing we had in mind is efficiency which can be achieved by transferring item needs in the most efficient and best way as possible.
I have started with seeing a live stream of the supply vessel docking with the ISS which took me around an hour to watch and then I got bored. I thought if I could just lower the amount of time fueling craft I could actually help the industry so that's when I thought of the EVTP.
https://spinoff.nasa.gov/Spinoff2017/ps_6.html this could be one of the components in the pump.
https://www.grc.nasa.gov/WWW/k-12/rocket/rktstomp.html for the the emergency detachment system.