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

FIELD: cleaning of water reservoirs. SUBSTANCE: intake working member is made of conical inlet with check valve and secured to end of moving hose. Installed in inlet is cone through which rope is passed. One end of rope is attached to inner wall of inlet, and the other end is wound on driving drum. Driving drum is installed in airtight chamber. Moving hose may be secured in airtight chamber communicated with system supplying working medium. EFFECT: higher efficiency. 2 cl, 1 dwg