The University of Minnesota has recently teamed up with JTW Associates to develop the Nebulus Emergency Flotation Device. It is a self-inflating case that set ups quickly and allows a water or ice rescue to be executed by single individual without waiting for help.
How it works? Once the rip-cord is pulled, two pressurized carbon dioxide bottles pump up an enclosed lift bag which is proficient in providing momentary flotation for up to 1,000 lbs of the sunken vehicle and riders. The Nebulus Emergency Flotation Device will likely be used for snowmobiles and ATVs (All Terrain Vehicles) smash into thin ice. You can even use it on your boat when your canting keel snaps off to save your crew! http://www.nebulusflotation.com/
