it was announced in NOV MR and I didn´t find it, tried various search modes...
Thanks from Düsseldorf, Germany!
I believe it is the video in the below link. I really like the idea of these couplers, but am hoping they can eventually be sized down a little, and be made so they can be installed on rolling stock...
http://www.mth-railking.com/video/see.asp?show=HOCoupler_Ogaugev&size=big