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

FIELD: cleaning of water reservoirs. SUBSTANCE: secured to airtight chamber is one end of hose. Airtight chamber is communicated with the system of supply and discharge of working medium. The other end of hose is connected to intake working member. Working member is connected by means of flexible link to reversible drive. Link is passed through hose. Hose may be straight or conical and made ladder-type and consisting of several parts of different diameters. Intake member is made in form of auger scraper or suction tube with check valve. EFFECT: higher efficiency. 6 cl, 5 dwg