DEPTH SAMPLER Russian patent published in 1994 - IPC

FIELD: sampling. SUBSTANCE: sampler has a sample intake and a sample lift means. The intake is made in the form of a rod with a weight. A movable bush pivotally connected to foldable posts through bearing links is mounted on the rod. A cloth base is fastened to the foldable posts. The sample lift means is made in the form of a chamber parted by a partition with a branch pipe into two sections. A spring- loaded piston is located in the lower section. A hollow with a leaf-type valve is made over the piston. Holes are located through the chamber height. The upper hole has a pocket with a hydroreactive substance. A foldable sealed shell is located in the upper section. EFFECT: improved structure. 2 dwg