DEVICE FOR CLEANING WATER RESERVOIRS AND SAPROPEL EXCAVATION Russian patent published in 1995 - IPC

FIELD: cleaning of water reservoirs. SUBSTANCE: suction and discharge holes with valves are made in walls of intake pipe. Located in intake pipe is hose filled with gas. One end of hose is turned inside out and secured to disk. The other end of hose is attached to movable pipe. Installed inside movable pipe is tore with rope passed through it. One end of rope is wound on drum, and the other end of rope connects disk with inner movable pipe. Movable pipe is passed through tore installed in pipe rigidly connected to end of intake pipe. EFFECT: higher efficiency. 2 cl, 1 dwg