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

FIELD: cleaning of water reservoirs. SUBSTANCE: one end of hose of intake working member has valve and connected by means of rope with driving drum. Drum is installed in airtight chamber. The other end of rope is passed through tore, turned inside out and attached to airtight chamber to form space filled with magnetic fluid. Installed in space are electromagnets connected with current source. EFFECT: higher efficiency. 2 cl, 1 dwg