Hi everyone! I trying understand this device (in picture 1 http://www.abbruchmaschinen.de/en/new-machines/oilquick.html). This is not simple coupler. This coupler is fully automatic. It can connect with any hydro equipment (such as auger, crusher, gripper....) without operator. Just insert male to female connector and go! Maybe someone know how does it works? Are there simple oil coupler or maybe that device is patented research? Because I didnt see any such couplers in suppliers catalog. I see only manual couplers https://www.google.ru/search?q=quic...LfZCYj0PLiHgMgJ&ved=0CD8QsAQ&biw=1920&bih=976 . Maybe they buy special quick release coupler and insert into adapter? But I didnt see any such auto quick release coupler? So maybe someone has any info in this way? best regards!