Patent ID: 8146970

Claim:
A recovery net comprising: a net having an upper edge, a lower edge and two sides; a connecting rope bound on the upper edge of the net and having two ends respectively protruding from the sides of the net; a floating unit mounted on the upper edge of the net and having buoyancy; a ballast bound on the lower edge of the net and having a weight imparting a force smaller than the buoyancy of the floating unit; two pulling ropes respectively connected to the ballast and mounted respectively near the sides of the net and each pulling rope having a holding end far away from the ballast; and two tightening ropes respectively mounted on the sides of the net and each tightening rope having two ends, one end of each tightening rope connected to the connecting rope and the other end of each tightening rope protruding out of a corresponding side of the net and pulled to close the side of the net.