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

FIELD: cleaning of water reservoirs. SUBSTANCE: installed in airtight chamber is driving drum and hose with its one end is attached to chamber. Attached to hose other end is pipe. Installed in pipe are drums with ropes wound on them. One rope encloses tore. The second rope is connected with hose suction end secured to pipe wall. Pipe and both sides of tore have holes to communicate pipe inner space with hose inner space. EFFECT: higher efficiency. 1 dwg