German student patented "airbag" for a smartphone

The inventor inserts the retractable legs back into the case.

Aalen German University student Philip Frenzel patented a case for the AD Case smartphone (AD means active damping) that protects the case in the event of a fall. The device works very simply: the sensors work when dropped - and then the cover throws out four springy legs. The idea came to the guy when his own phone crashed in the fall.

The legs are designed in such a way that they soften the fall at any angle (see the video under the cut).


Literally one day, the video with the “airbag” was sold out all over the internet - and Frenzel woke up famous. He is now giving interviews to publications from all over the world. In an interview, a student admitted that he had been working on this case for four years . But it was worth it: for his invention, Philip received an award from the German Mechatronics Society.

Probably, the inventor has to solve a number of technical problems. For example, how to make so that the legs of the cover did not work in the pocket of a person when jumping or riding in the elevator.

In July, the guy plans to start collecting for the mass production of the gadget through Kickstarter. Obviously, it is necessary to do this quickly, until the wave of HYIP has declined.

I would like to believe that with the proliferation of such devices, the number of broken smartphones will decrease. But for some reason it seems that the owners of such covers will begin to actively test the novelty for strength and show it to friends, with an obvious outcome.